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Most people do not have the time, or the expertise, to sit down and work out exactly what it could cost to rebuild their home from scratch. If you are looking at your house insurance options, an online house insurance calculator can be a helpful place to start.

It does a lot of the heavy lifting by using property details and current building cost data to give you an estimated rebuild cost. Most of the questions are things a homeowner can usually answer themselves, such as the size of the home, how many levels it has, and what materials it is built from.

Online calculators do not provide advice, and they may not capture every detail that could affect the rebuild cost of your home. Instead, they use the information entered, along with property and construction data, to provide an estimate. If you would like a more tailored assessment for your specific property, a builder, architect, quantity surveyor, or insurance valuation service may be the best option.

It is also important to remember that your sum insured should reflect the cost to rebuild your home, not what you paid for it, what it might sell for, or what the land is worth.

Key takeaways in this article

• A house insurance calculator helps estimate rebuild cost, not market value
• Your sum insured should reflect the cost to rebuild your home to its current size and standard
• Land value, purchase price, rates valuation, and QV are not the same as rebuild cost
• Renovations, unusual features, and non-standard materials can affect the estimate
• Demolition, professional fees, and site-related costs should also be considered
• Reviewing your sum insured regularly can help reduce the risk of underinsurance

What is a house insurance calculator?

A house insurance calculator, also called a sum insured calculator, is an online tool that helps estimate how much it could cost to rebuild your home after a total loss.

It is designed to provide an estimate based on typical building replacement costs. It is not intended to provide personal advice, and it may not allow for every detail that affects the rebuild cost of your home.

For many people, it is a practical and straightforward way to get started.

Rebuild cost is different from market value

One of the most important things to understand is that your insurance should be based on rebuild cost, not market value.

The price you paid for your home can include the land, location, school zones, and housing market demand. A rates valuation or QV can also include land value and broader market factors. None of those figures tell you what it would cost to physically rebuild the house itself.

That is why your sum insured should not be based on:

• the purchase price
• the market value
• the rates valuation
• the QV
• the land value

Instead, it should reflect the likely cost to rebuild the home to a similar size and standard using today’s building costs. See ‘Why does my rebuild value change?‘ for more information.

What your sum insured should cover

Your sum insured should reflect the full cost to rebuild your house to its current size and standard.

That can include:

• demolition and clearing the site
• rebuilding the house itself
• current material and labour costs
• architect, engineer, or consent-related costs
• site access or complexity that may make rebuilding harder

Not every property is simple to rebuild, so it is important to think beyond just the floor area.

What can affect your rebuild cost estimate?

A calculator is a helpful starting point, but it may not reflect every detail of your home. That is why it is worth reviewing the result carefully, especially if your property is more complex than average.

Renovations, unusual features, and non-standard materials

The estimate may need a closer look if your home has features that are not typical, such as:

• renovations or extensions
• high-spec finishes
• unusual design features
• detached structures or other improvements
• older homes with non-standard construction

If you have made improvements such as building a deck, installing a swimming pool, adding a new room, or upgrading your kitchen or bathroom, those changes may affect your rebuild cost.

Size, layout, and standard of finish

Rebuild cost is not just about floor area. Two homes of the same size can cost very different amounts to rebuild depending on their design, layout, and level of finish.

Things that can affect the estimate include:

• ceiling height
• kitchen and bathroom quality
• custom joinery
• roof shape
• cladding type
• number of storeys
• architectural design

Site access and demolition costs

The site itself can also affect rebuild costs. For example:

• steep sections can be harder to access
• tight urban sites can increase labour and delivery costs
• retaining walls or complex foundations can add cost
• demolition and debris removal may be more expensive on some sites

House and contents cover are different

A house insurance calculator estimates the rebuild cost of the home itself. It does not calculate the value of the belongings inside it.

If you also want to know what your contents are worth, that should be worked out separately. House cover and contents cover are designed for different things, so it is important not to mix the two.

Why it is important to review your sum insured regularly

It is important to review and revise your sum insured regularly to help make sure it still reflects the likely cost to rebuild your home.

A good time to review it is when your policy is up for renewal, but you can check and update it at any time.

This matters because building costs can change over time, and your home may have changed too. While your policy may include a general inflation adjustment at renewal, that will not usually account for significant improvements, extensions, or alterations you have made.

If you do not review your sum insured from time to time, you could find yourself overinsured or underinsured at claim time.

When should you get a more detailed estimate?

For many homes, a calculator gives a useful estimate. But you may want a more detailed assessment if your home:

• has been heavily renovated
• is architecturally designed
• has unusual materials or features
• is very large
• is older and more complex to rebuild
• is on a difficult site

In these situations, a builder, architect, quantity surveyor, or other valuation expert may be able to give you a more tailored estimate.

Why this matters in New Zealand

In New Zealand, sum insured matters because house insurance is generally based on the amount you choose as your cover limit.

That means it is important to choose a figure that feels realistic for your home and its likely rebuild cost. If the amount is too low, it may not go far enough in a major claim. If it is too high, you may be paying for more cover than you need.

Final thoughts

A house insurance calculator is one of the easiest ways to get started when working out your sum insured. It saves time, uses relevant property and construction data, and helps give you a practical estimate without having to calculate everything yourself.

But it is still only a starting point. The most important thing is to check whether the estimate reflects your home, its features, its level of finish, and the likely cost to rebuild it. If you are unsure, getting a more tailored assessment from a builder, architect, quantity surveyor, or insurance valuation service may give you more confidence in the amount you choose.

You might also be interested in:

• Own a lifestyle block or rural property?
• Top 5 mistakes to avoid when insuring your property
• How do I add contents insurance to my policy?
• Understand the differences between contents cover options
• How does excess work?
• What contents items are automatically covered under your insurance policy?

Frequently asked questions

How do I calculate my sum insured?

You can use an online house insurance calculator to estimate what it may cost to rebuild your home to its current size and standard using today’s building costs. If you want a more tailored assessment, you could also speak with a builder, architect, quantity surveyor, or valuation expert.

Should my sum insured be the same as what I paid for the house?

No. Your sum insured should reflect rebuild cost, not purchase price or market value.

Does my sum insured include the land value?

No. Your sum insured is about the cost to rebuild the house, not the value of the land.

Is a rates valuation or QV the right figure to use?

Not usually. These figures do not necessarily reflect what it would cost to rebuild your home.

How often should I review my sum insured?

It is worth reviewing it regularly, especially at renewal time or after any renovations, extensions, or major improvements.

Written by Toby Pudney – Initio’s Support Team Lead

Toby has been with initio since 2023 and is the Support Team Lead. He brings more than six years of experience in the insurance industry, giving him strong knowledge of general insurance. He has studied with ANZIIF and holds a qualification in New Zealand Compliance for Advisers (General Insurance Broking).

Get a quick estimate so you can feel confident in your contents cover.

The Sum Insurance contents calculator estimates the value of your household contents using values supplied by Sum Insured Pty Ltd, New Zealand and Australia’s leading provider of building contents cost information. It’s a helpful starting point when setting up or reviewing your house insurance or landlord insurance cover.

If you have existing contents insurance you would like to amend, log in to your dashboard and make a change.

Go to contents calculator         Learn about our replacement contents cover

Key takeaways in this article:

• A contents calculator helps estimate the value of your belongings so your cover reflects real replacement costs.

• Use a contents calculator as a starting point, then review your cover to make sure it still fits your needs.

• High-value items may need to be specified if they exceed standard policy limits.

• Most everyday belongings are usually automatically covered, subject to limits and conditions.

• Most claims are settled new-for-old, but some items are paid at market value.

• Your policy wording and schedule work together to explain your cover.

• You can update your contents cover anytime through your dashboard.

How your contents are covered

House vs landlord contents

Contents can mean different things depending on how the property is used.

• For homeowners, contents usually refers to your personal belongings like furniture, clothing, electronics, and everyday items.
• For landlords, contents cover is typically more limited. It usually includes items you provide with the property, such as carpets, curtains, blinds, and appliances, but not your tenant’s belongings.

Make sure you’re using the right approach when using a contents calculator, so your cover reflects what you actually need.

Learn more about the differences between contents cover options.

Which items need to be specified

Some belongings have a sub-limit, which means there’s a cap on how much we’ll pay for them. If an item is worth more than the limit shown in our support guide, you can list it as a specified item.

Learn which items need to specified

Which contents items are automatically covered in initio’s policy

Many everyday belongings might be automatically included in your cover without needing to be listed individually.

We’ve created a simple guide answering common “am I covered?” questions to help you see what’s typically included with an initio contents policy. It’s only a helpful guide, so always check your policy wording for full details. If you’re still unsure, reach out to us or use an AI search tool to review your policy, and always double-check the results.

Read the full guide

What contents are covered for market value

Most contents are covered on a new-for-old basis, meaning we replace items with new equivalents. Some items, however, are settled at their current market value instead.

Other criteria and limits apply, so check your policy wording for full details.

Check which items are covered for market value

How to add or update contents cover

You can add contents to your insurance or adjust your cover at any time through your online dashboard.

If you already have a policy, simply log in and adjust your details in a few clicks. Any changes you make will show straight away. Currently, contents cover isn’t available as a stand-alone policy and must be added to a home policy.

Learn more about how to make a change.

Calculate your house sum insured

Now that you’ve worked out your contents, you might be ready to calculate your house sum insured.

Go to the house calculator

Related articles

• Do I have contents cover?
• Contents insurance basics
• How do I add contents insurance to my policy?
• How to read an insurance policy

Hosting short-term guests introduces unique risks. Most insurance companies are cautious about rented holiday homes so before letting out your home or listing your property on platforms like Airbnb or Bachcare, it’s important that you confirm your policy covers holiday bookings.

Effects on insurance costs

If you host paying guests, and you tell your insurer, they will likely adjust your coverage. Be sure to inform your insurer about your hosting activities and understand the implications for your policy. Many insurers, including initio, may increase premiums or excesses due to the additional guest-related risk. Some insurers may exclude coverage for guests entirely, leaving you at risk of being uninsured. It’s best to review your policy or contact your insurer if you’re unsure.  Make sure your insurer is aware that you rent out your holiday home.

What qualifies as a holiday home, for insurance purposes?

To qualify as a holiday home, the owner must;

• Use the property themselves as a holiday home, and;
• Have the right to occupy the property at will, and;
• Store personal belongings at the home.   

A holiday home can be used by:

• The owner, at any time.
• Friends and family.
• Tenants on a periodic basis, including short-term paying guests (stays with durations of less than 90 days).  

These criteria ensure the property remains under your control and qualifies as a holiday home with your insurance provider and meets the requirements for cover provided by the Natural Hazards Commission (NHC, previously EQC).  

How property management can affect your insurance

Using a property management company under a full management contract can impact your insurance. If the property manager has full control, you may lose the right to occupy the property, which can disqualify it from being considered a holiday home, and makes it ineligible for Natural Hazards Commission (NHC) coverage.  You must check your agreement with your property management provider as it may mean that you have assigned control cover to the manager and you no longer have the ability to occupy it when you wish.  

An insurer cannot provide domestic house insurance cover for a holiday home that does not meet the conditions of cover for the NHC. 

Understanding NHC cover: The Natural Hazards Commission (NHC) provides special insurance protection for the home against natural disasters like earthquakes and floods, and unlike your house insurance policy, it also extends to cover land damage.  To qualify, your property must meet specific criteria, including being under your control as a holiday home. For detailed information, refer to the NHC guidelines.

What if your property does not qualify as a holiday home under the NHC legislation?

If your home does not meet the NHC definition of a holiday home, to obtain cover you will likely need a commercial property insurance provider to structure insurance that covers the building, loss of income and liability risk.  

Does landlord insurance cover short-term rentals like Airbnb?

No, our landlord insurance is designed for standard long-term residential tenancies only. It doesn’t cover properties used for short-term rental activity such as Airbnb or Bookabach.

If you rent out your own home (where you live) occasionally on Airbnb, you may be eligible for cover under our Own Home, Sometimes Rented policy. Similarly, if you have a family bach or holiday home that you occasionally let to paying guests, it may be suitable for our Holiday Home insurance – sometimes rented – just make sure to select the option for short-stay rentals when quoting.

Short-term rental properties that operate like a business typically require commercial insurance, which isn’t available through initio. Learn more about the things we don’t cover at initio.

Doesn’t Airbnb’s ‘Host Guarantee’ cover me?

If you manage your property using Airbnb, you’re likely familiar with their Host Guarantee.

It’s important to understand that this guarantee isn’t a substitute for proper insurance. The Host Guarantee comes with limitations and might not cover everything you anticipate. It’s not equivalent to regular insurance and some hosts have discovered it doesn’t provide comparable protection. To ensure your property is fully covered against any damages or issues, having your own insurance policy is essential.

Airbnb’s Host Guarantee is not a traditional insurance policy but a conditional promise. It’s not regulated like insurance. Key requirements include:

• Report damage and file a claim within 14 days.
• Provide proof of ownership and, in some cases, a certified police report.

House Guarantee conditions can include:

• Only covers damage during the booking period.
• Coverage is limited to listed areas in your profile.
• Exclusions include damage from excessive utility use, animals, or pets.
• Rent loss cover only applies to confirmed bookings cancelled due to damage.

Given these limitations, Airbnb themselves recommends having a specialist insurance policy in addition to the Host Guarantee.

Everything’s in order, how do I get the right cover?

If you manage your holiday home yourself and meet the necessary NHC criteria, initio offers specialised cover for your holiday home  that is also used for short-term rentals. As the first in New Zealand to provide a house insurance policy specifically designed for holiday homes, Initio offers a hybrid house, contents, and guest insurance policy tailored for short-term rentals, without the strict conditions of a Host Guarantee.

Initio’s holiday home (with the additional short stay option) policy covers:

• The home itself for damage from things like flood, fire and storm (whether rented or not) 
• Accidental damage to the home by guests.
• Intentional damage by guests, up to $25,000 (e.g., if guests decide to damage walls deliberately) .
• Loss of rent for confirmed bookings cancelled due to the home becoming uninhabitable following insured damage, and also for loss of rent from unconfirmed bookings based on seasonal, area or your previous year’s use data) 
• Meth contamination from manufacturing, ie. contamination damage caused by an accidental incident in connection with the manufacture, distribution or storage (but only where the storage is in connection with supply or distribution) of methamphetamine at the home.
• Your legal liability to your guests for accidental damage and bodily injury.

These are the sort of protections you need when renting your home out to short-term guests.

Key takeaways

• Check your insurance: Ensure your policy covers holiday rentals before using platforms like Airbnb.
• Higher costs: Be prepared for higher premiums or excesses if your insurance covers guests.
• Host guarantee limits: Airbnb’s Host Guarantee has strict rules and limited coverage.
• Property Management impact: A property manager’s control might disqualify your home from holiday home insurance, check your agreement with the property manager and that you still comply with the NHC definition of a holiday home.
• Holiday Home rules: You must retain occupancy rights and keep belongings there to maintain holiday home status.
• Get the right insurance: Choose insurance designed for short-term rentals for better protection.
• Comprehensive coverage: Seek policies that cover guest damage, lost rent, meth contamination, and liability.

By managing your property with these factors in mind, you can better protect your holiday home and maintain your insurance coverage.

Holiday Home Insurance
Holiday Home vs Own Home

Related articles

• How to claim for intentional vandalism by tenants
• Should I get a property manager?
• Second dwelling on your property that you rent out?
• Help when your quote isn’t ‘straightforward’
• Should you rely on the Airbnb host guarantee?

A total loss in house insurance is when a home is damaged so badly that it needs to be fully rebuilt, or partial repairs will cost more than the sum insured. In most cases, this happens after a major insured event such as a serious fire, severe flood, or natural disaster. It is the kind of event where your sum insured matters most, because that amount may affect how much is available to rebuild your home.

If you are reviewing your house cover, this is one reason it is important to make sure your sum insured is accurate.

Key takeaways in this article

• A total loss means the home cannot reasonably be repaired
• It usually means full rebuild or full replacement
• Total loss can apply to your house, contents, or both
• Your sum insured matters most in a total loss
• The exact cover depends on your policy wording

What does total loss mean?

In insurance, a total loss generally means the insured property has been destroyed or damaged to the point where repairing it is no longer practical. In terms of property insurance (e.g house or landlord insurance), this usually means the house would need to be rebuilt from the ground up. For contents insurance, it usually means the belongings cannot be replaced within the sum insured and the policy amount is exhausted.

What is a total loss in house insurance?

A total loss in house insurance usually means the damage to the home is so severe that rebuilding is the only realistic option. This can happen when the house is:

• destroyed by fire
• badly damaged by flood
• affected by earthquake or another natural disaster
• left beyond practical repair after another insured event

Not every major claim is a total loss. Some homes can still be repaired, even after significant damage. The exact event is less important than the outcome. If the damage is severe enough that the property effectively needs full rebuild or replacement, it may be treated as a total loss.

Is a total loss the same as major damage?

No, not always. Major damage means the home has been seriously affected, but it may still be repairable. A total loss usually means the damage is so severe that full rebuild is needed instead.

This is an important difference, because not every large house insurance claim is treated as a total loss.

Why does sum insured matter in a total loss?

Your sum insured matters most in a total loss because it is the amount that may be available to rebuild your home, depending on the terms of your policy.

That is why your house sum insured should reflect what it would cost to rebuild your home to its current size and standard using today’s building costs.

If your sum insured is too low, it may not reflect the real rebuild cost of your home after a major loss. That is why it helps to calculate your sum insured carefully and review it over time.

Can total loss apply to contents insurance too?

Yes. A total loss can also apply to contents insurance if your belongings are damaged or destroyed to the point they need full replacement.

For example, after a major fire or flood, the claim may reach the full contents sum insured if everything inside the home is lost or badly damaged.

If you are reviewing that side of your cover too, we also have a separate calculator for contents cover.

Does a total loss always mean the insurer pays the full amount?

Not necessarily. How a total loss is handled depends on your policy wording, your policy schedule, and the circumstances of the claim. The exact details can vary between policies and insurers.

That is why it is important to read your policy wording carefully and understand what applies to your cover.

Where can you check how total loss applies to your policy?

Your policy wording explains how your cover works, what limits apply, and how claims are assessed. Your policy schedule shows the details specific to your own policy.

Reading both together will give you the clearest picture of how total loss would be handled under your cover.

Why this matters when reviewing your insurance cover

Understanding total loss is important when reviewing any property insurance cover, whether that is house, landlord, holiday home or any other kind of property insurance. A total loss is the kind of event where your cover may be tested most heavily, so it is worth making sure the amount insured still reflects the real cost to rebuild or replace what is covered.

Final thoughts

A total loss in house insurance is when a home is damaged so badly that it needs to be fully rebuilt rather than repaired. It can also apply to contents when belongings need full replacement after a major insured event.

If you are reviewing your house insurance, it is a good time to check whether your sum insured still reflects the real cost to rebuild your home today.

Related articles

• Does your home have unusual features, renovations, or non-standard materials?
• How to read an insurance policy
• Are there limits to how much I can claim for my contents?
• Factors to consider when using a house insurance calculator

FAQ’s about total loss

What is a total loss in house insurance?

A total loss in house insurance usually means the home has been damaged so badly that it needs to be fully rebuilt rather than repaired.

What is a total loss in contents insurance?

A total loss in contents insurance usually means the belongings have been destroyed or damaged to the point they need full replacement.

Is a total loss the same as a write-off?

Often, yes in general conversation. Both usually refer to damage so severe that repair is no longer practical. Generally, “write-off” is the term used when talking about vehicles.

Why does sum insured matter in a total loss?

Because in a total loss, the cost to rebuild or replace may reach the maximum amount available under your policy.

Where can I check how my policy handles total loss?

You should check your policy wording and policy schedule for the details that apply to your cover.

Does my landlord insurance cover a total loss?

Initio’s Landlord Insurance is designed to cover serious damage to the rental itself, including a total loss, on a replacement basis up to the house sum insured you select for the property, rather than just minor or partial damage.

Written by Hannah Gabbie – Initio’s Head of Support

Hannah has been with initio since 2023 and brings more than a decade of experience in fire and general claims. She joined the business as Claims Team Lead and quickly moved into the role of Head of Claims, reflecting her strong expertise and leadership in the claims space. She is a Senior Associate CIP of ANZIIF and holds a Diploma of Loss Adjusting.

For many people, insurance is the ultimate grudge spend. Along with council rates it typically represents one of the most significant expenses associated with home ownership.

Because of the intangible nature of insurance, and its status as everyone’s most hated expense, the insurance industry often gets a bad reputation from the public. Currently, the insurance industry in New Zealand is facing all-time lowest levels of trust among the general public. Here at initio, we are challenging this and the traditional practice of insurance by making insurance easier and more accessible.

To help increase the trust we thought we would break-down the top house insurance myths we encounter:

1. “I have paid my premium, why do I have to pay an excess?”

A common grievance towards insurance companies arises from the customer’s responsibility to pay their excess come claim time. It may seem unreasonable to have to contribute the excess cost towards your claim when you have already paid for your premium. However; there are good reasons that insurance companies will charge an excess:

a) To avoid small claims

If there was no excess on insurance policies then people would rightfully be able to lodge small claims (think $80, $50 or even $10) that would make up a significant portion of total claims. Management, payment, and processing of claims is one of the largest operating costs of an insurance company.  For example, for most clunky insurance companies to process a $150 claim, is more than the value of the claim itself.  A high volume of such small claims would bloat the expenses for the insurance company, ultimately resulting in higher premiums for customers. Charging a minimum excess is the insurance company’s way of keeping premiums down while making sure they are covering the important stuff – not every broken toy or sock lost in the washer.

b) As a measure of self-insurance.

Insurers also give the option to customers of a higher excess above the minimum. This is a means of self-insurance where those that are more willing to cover additional costs towards a claim can get a reduction in premium via an increase in their excess.  Initio for example provides the option of a $2,000 house insurance excess – which was as a result of customer feedback.

2. “Insurers will screw you over with the fine-print”

Whether it’s from a bad claims experience, or a general distrust for insurance companies – people often hold a grudge against insurers. Customers often think insurers are looking for a way out of paying  claims and that they will use the fine-print to do it. This may reign true, however will usually reference back to conditions included in the policy wording – and hence the insurance agreement.

The problem isn’t the fine print, the policy wording didn’t change from when the cover was started.  The argument is more around the interpretation of the policy and we are the first to agree that this isn’t always straightforward.  Policy wordings need to get rid of the jargon and be written in plain english.

At initio, we are taking the Reserve Bank’s (New Zealand’s Financial Regulator) recommendation for clearer, more understandable insurance very seriously. We have prioritised easy to understand policy wordings, compiled to clearly show details of our customers cover, and published real life examples of claims we have paid and scenarios that are not claimable.

Whilst we don’t expect everyone to read each policy wording back to front, there are parts of our policy that are very important to be known to the customer. Therefore it is important for people to take time to get familiar with the useful policy information we provide so that they are not left surprised with unexpected conditions in the event of a claim.

To read our full Home and Contents policy wordings please visit the following links:

Home Insurance

Contents Insurance 

For a useful comparison between our policy wording and other covers across popular insurers in New Zealand, visit https://initio.co.nz/#comparison

3. “Insurance companies are just there to make profit not friends”

Perhaps the most truthful stereotype we hear is that people believe insurance companies are there to make money. While this is true; companies have an obligation to shareholders to return a profit, they also have an obligation to pay claims. If insurers were forced to pay out the same amount that they received in premiums and were essentially not there to make money, no insurance companies would exist. Like any business there are various operating costs for an insurance company that include managing claims, administration costs, reinsurance (insurance for insurance companies) and many more.

An insurance company will aim to adjust their price and policy so that the amount paid out for claims is less than that received in premiums. The proportion of this is called the insurer’s ‘loss ratio’. Historically, a domestic house insurer might set up their strategy and pricing to aim for a loss ratio of 60%. Then once the costs of operating the company (including significant re-insurance costs for widespread earthquake losses) are deducted, an approximate profit margin of 3-8% on the original premiums received might be earned by the insurance company – although this varies based on good and bad years.

When you purchase insurance you are buying a product that gives you peace of mind that you are covered when disaster strikes. Like any other product you buy, the seller needs to make a profit to survive.  Effectively with insurance you are pooling your premiums with other customers to receive protection should something go wrong.  The insurance company is the administrator of these funds and takes the risk (and the margin) of doing so.

4. “You’re better off not bothering with insurance and having your own emergency fund”

Perhaps a myth popular with those who most distrust insurance companies is that you are better off forgetting about insurance completely and putting away the money you save on premiums each year into your own ’emergency fund’. This is the most extreme case of self-insurance. This could certainly be a practical solution for the most disciplined people with a comprehensive approach to reducing their risk. However, there are some obvious pitfalls and major challenges to this approach.

You are likely to experience several years where you are effectively un-insured while you build up your fund. After a number of years have passed you might have saved enough to adequately cover minor losses. However, it will take many many years; if not your whole life, to accumulate enough for a worst case scenario loss.  If you put aside $1,500 a year for 50 years at current interest rates you would save $127,000, which seems reasonable, but when you adjust for inflation, that $127,000 only represents $47,000 of todays money.   Would that be enough to replace your home and contents in a total loss fire? And could you trust yourself not to ‘borrow’ from the fund? The decision to take out insurance can have a life changing effect on you in the event of a disaster – for the better or the worse.

Remember that when you purchase insurance, not only are you buying cover when things go wrong – but you are obtaining piece of mind to enjoy a less stressful life.

Useful articles

• Top five mistakes to avoid when insuring property
• Five fundamentals of house insurance

There’s a lot to juggle when you’re buying your first place – deposits, lawyers, moving trucks, the lot. Sorting out home insurance when buying your first house is another step, but it doesn’t have to be confusing.

That’s why we created the First Home Buyer Insurance Guide. It explains what house and contents insurance is all about, answers the questions first-home buyers ask most, and helps you avoid common mistakes.

You’ve got enough to think about. We’ll make insurance the easy part.

When do you need insurance?

One of the biggest surprises for first-home buyers is when insurance is actually required. Most banks won’t release your loan until they’ve seen confirmation of cover. You can’t leave it until after settlement.

Here’s how timing works:

• Auction: Check in advance that the property is insurable before bidding.
• Conditional offer: Your finance clause usually requires proof (Letter of Intent or Certificate of Insurance).
• Settlement day: Even with an unconditional offer, you’ll want cover active from the moment you take ownership. Learn more about when your cover needs to begin.

Sorting your insurance early gives you peace of mind and avoids last-minute stress.

Proof of cover: two simple options

Letter of Intent

Best when you’re still finalising the purchase or need something fast. Get a quote online, customise your cover, and download the Letter of Intent instantly to show your lender the property can be insured.

Certificate of Insurance

Once you’ve bought the home, complete your sign-up, pay your premium, and receive the Certificate of Insurance by email. This confirms your cover is active from settlement day. All you need is your new address – no phone calls, no delays.

What to look for in your policy

Insurance isn’t one-size-fits-all. Before you buy, think about:

• Sum insured: The rebuild cost of your home (not the market value). Include demolition, site clearance, and GST. Use our calculator to help you estimate the rebuild cost.
• Excess: What you’ll pay if you make a claim. Higher excess lowers premiums but increases out-of-pocket costs.
• What’s covered: Fire, flood, storm, burglary, accidental damage, and natural disasters.
• What’s not: Wear and tear, gradual damage, or maintenance issues.

And don’t forget contents cover – your furniture, electronics, and valuables add up quickly.

Mistakes first-home buyers often make

It’s easy to treat insurance like a box to tick, but the wrong choice can leave you out of pocket. Common mistakes include:

• Underinsuring: Cutting corners on your sum insured lowers premiums but leaves you short if disaster strikes.
• Guessing rebuild costs: Use a calculator or valuation instead of rough estimates. Learn more about calculating rebuild costs.
• Chasing the cheapest price: Low-cost policies often have gaps in cover or poor claims support. Use our online comparison tool to compare cover options between leading NZ insurance providers.
• Picking the wrong excess: Balance affordability with what you could realistically pay. Learn more about insurance excess
• Forgetting contents and car cover: Protecting your house is step one, but your belongings and car matter too. Access our contents calculator tool to work out the value of your belongings.

Why initio works for first-home buyers

You don’t just need cheap insurance – you need cover that works when it matters. That’s where initio comes in:

• Instant quotes and proof of cover online
• Thousands of verified 5-star reviews
• Transparent, fast claims process you can manage online
• Backed by IAG, New Zealand’s largest general insurer
• Policies designed for Kiwi homeowners and landlords

We built initio to take the hassle out of insurance. No hold music. No confusing forms. Smart cover made simple.

Ready to get started?

Read the full First Home Buyer Insurance Guide for step-by-step instructions, examples, and practical tips to help you get it right from the start.

Make insurance one less thing to stress about – so you can focus on enjoying your new home.

Ready to begin your journey with initio? Start with a quote

Related articles

• • Moving house? Things you need to know about your insurance.
  • Five fundamentals of house insurance
  • Help when your quote isn’t straightforward
  • How to switch from your current insurance provider to initio

Want to dive deeper?

Watch our video where Guy, our Head of Partnerships, explains what insurance actually does, why banks care about confirmation of cover, and how to avoid common traps as a first-home buyer.

As a homeowner in New Zealand, you may have noticed fluctuations in your house insurance premiums over the years. While factors such as the rebuild cost of your home and the frequency of local weather events play significant roles, there’s another crucial element influencing your home insurance pricing: the global pool of insurance funds.

To put this into context, consider your personal insurance excess, which might be $650 for your house. In comparison, IAG has a $500 million excess for covering multiple homes in New Zealand in the event of a disaster. Similarly, while your house might be insured up to $1 million, IAG’s reinsurance limit is $10 billion. Although this is a simplification, it helps explain how reinsurance works.

The key takeaway here is that initio and IAG ensure you are well-covered. For more details, you can read the official article from IAG here.

New Zealand: A high-risk country with a small pool

New Zealand is one of the highest earthquake-risk countries in the world, situated within the volatile “Ring of Fire.” This inherent risk, combined with our relatively small population, means we draw from a comparatively smaller pool of insurance funds than larger nations. Consequently, our home insurance market heavily relies on global reinsurance companies to provide additional coverage and spread the risk.

New Zealand’s high exposure to natural disasters like earthquakes, floods, and cyclones makes it one of the riskiest countries for insurers. This, coupled with our small population and insurance market, underscores the importance of attracting global reinsurers to provide essential coverage.

For reinsurers to support the New Zealand market, it must be a worthwhile proposition. They carefully assess the risk-reward balance, considering factors such as the frequency and severity of past events, the potential for future catastrophes, and the insurance penetration rates in the country. If the risks outweigh the potential returns, reinsurers may limit their exposure or demand higher premiums, ultimately impacting the cost of home and contents insurance for New Zealanders.

What is a reinsurer?

A reinsurer is essentially an insurance company for insurance providers. When an insurance provider issues policies to customers, it takes on the financial risk associated with potential claims. To manage and mitigate this risk, the insurance provider may seek additional coverage from a reinsurer.

Here’s how it works:

1. Risk transfer: The insurance provider transfers part of its risk to the reinsurer. This process is known as “reinsurance.” By doing this, the insurer reduces its exposure to large or unexpected claims.
2. Premium payment: In exchange for taking on this risk, the reinsurer charges the insurance provider a premium. This premium is typically lower than the total premiums collected from policyholders, allowing the insurer to maintain profitability while securing additional risk protection.
3. Financial stability: Reinsurers help insurance providers maintain financial stability, especially in the face of large-scale disasters. For example, if a major earthquake occurs, the financial burden of the claims is shared between the insurer and the reinsurer, ensuring that the insurer can meet its obligations to policyholders.
4. Global risk distribution: Reinsurers operate globally, spreading risk across different regions and types of insurance. This global reach allows them to balance their portfolios and better manage the financial impact of claims from catastrophic events.

The importance of reinsurers

Reinsurers play a crucial role in the insurance industry by providing a safety net for insurance providers. This enables insurers to offer coverage to high-risk areas, such as New Zealand, which is prone to natural disasters like earthquakes, floods, and cyclones. Without reinsurance, insurers might be unable to cover such risks or would need to charge prohibitively high premiums.

Reinsurers enhance the capacity and resilience of the insurance market, ensuring that policyholders receive the protection they need, even in the event of significant and unexpected claims.

Global events and local insurance impacts

While major weather events or natural disasters overseas may not directly impact New Zealand, they can still influence home and contents insurance pricing locally. For example, when hurricanes, earthquakes, or wildfires strike other regions, reinsurers must divert funds to cover those losses. This depletion of the global insurance pool can lead to higher reinsurance rates, which local insurers must then pass on to their customers through increased home insurance premiums.

During hurricane seasons in the United States, insurance companies often raise their premiums due to the increased risk. This increase is subsequently passed on to reinsurers, making the US market more attractive to them compared to New Zealand. Reinsurers get a better return on their investment in the US market due to higher premiums and a larger risk pool. It’s also important to note that the IAG program covers both Australia and New Zealand, which makes it relatively smaller compared to the US market.

It’s not just the overseas events that can impact your house insurance pricing. Local factors can also have significant consequences. The devastating floods and cyclones of 2023 led to substantial claims and higher reinsurance costs for local home insurance providers.

The impact of regulation on pricing

New Zealand’s prudential regulation, particularly since the 2020 review by the Reserve Bank, has significantly impacted the cost of house insurance for homeowners. Most insurers globally have to hold sufficient reinsurance or capital reserves to cover the risk of a 1-in-200 year catastrophe event. However, New Zealand insurers must hold sufficient reinsurance or capital reserves for a 1-in-1000 year catastrophe event. This stringent requirement drives up the cost of reinsurance, which, in turn, increases the cost of insurance for homeowners.

Balancing risk and affordability

Insurers and reinsurers are constantly reassessing their risk appetites, pricing, and capacity in response to global and local events. While this process aims to ensure the sustainability of the home insurance industry, it can result in higher premiums for homeowners. However, it’s a necessary measure to maintain the availability of home insurance coverage and spread the risk equitably across the global pool.

Enhancing New Zealand’s reinsurance market

To make our market attractive to global reinsurers, it’s essential to maintain a robust and well-regulated insurance industry with adequate pricing and risk management practices. Initiatives like the new disaster response model between insurers and the Earthquake Commission (EQC) aim to improve efficiency and customer experience, potentially enhancing New Zealand’s reputation in the global reinsurance market.

By demonstrating our commitment to responsible risk management and ensuring a fair return for reinsurers, we can continue to secure the necessary backing to protect New Zealand homeowners against the risks we face in our hazard-prone environment.

Making informed decisions 

As a homeowner in New Zealand, understanding the interconnected nature of the global insurance market can provide valuable insights into the factors influencing your home and contents insurance costs. By staying informed and working closely with your home insurance provider, you can make well-informed decisions to ensure you have adequate protection against the risks we face in our beautiful but hazard-prone country.

When choosing house insurance in New Zealand, it’s essential to know that initio is backed by industry giant IAG. This partnership ensures our financial stability and capability to pay claims, providing you with peace of mind. We understand that the most important aspect for our customers is knowing that we have the financial strength to support them in times of need.

By partnering with a financially robust provider like initio, you can rest assured that your most valuable asset is protected, even in the face of unexpected events.

Useful links

• Why has my premium changed?
• How are house insurance premiums calculated?
• Am I covered for natural disasters?
• IAG confirms reinsurance protection

If you have insurance on your house, you most likely have cover for fires. Unlike some countries, New Zealand house insurance policies automatically cover fires.

However, just to be sure you should check your policy wording to see if fire damage is not excluded. All of the initio house insurance policies automatically cover fires up to the replacement sum insured you select for your house.

Why is fire cover important?

Having fire cover for your home is essential. Fire damage makes up a large amount of house insurance payouts. Even a small fire that does not burn the entire house can mean it is a total loss. Smoke contamination and water damage (from the fire brigade) often means homes can’t be lived in and are a total loss.

The general risk of fires means it’s generally standard for cover to be included in insurance policies.

Kiwis are good at getting insurance

New Zealand has one of the best rates of insurance coverage in the world.  We are 4th in the global rankings of insurance penetration. This means that, as homeowners, we see the value in insurance and compared to other countries we choose to insure our houses (and other assets) more often.

Following the Christchurch earthquakes, almost every insurer changed from insuring houses for full replacement based on size (e.g. 150 square meters) to insuring the house for a specified replacement sum insured.  This put the onus on the homeowner to choose a sum insured that reflected the replacement value of their home – and this in itself is a complex exercise.  This resulted in the homeowner having a house insurance policy in place for less than it would actually cost to rebuild the house.

So, what is the rebuild value of a house?

Many homeowners confuse the rebuild value of their home or rental property with its market value.  These are two very different things and are completely unrelated.   The market value is what a property would sell for in the current market, whereas a rebuild value is a cost to replace the house and its site improvements.

Given that fire generally results in a total loss to the house, getting the rebuild value correct, and aligning this with your insurance is essential.  It is also important to factor in the cost of demolishing the home and preparing the site, the clean-up costs after a fire cost at least $40,000 (even more if there is asbestos).  Learn more about calculating your replacement value here.

Causes of house fires

The most common causes of a house fire are:

1.  Electrical fault
2.  Electronic equipment
3.  Cooking fires
4.  Fireplaces

Many fires can be prevented, or at least brought under control early if a fire extinguisher was available.  Unfortunately, unlike fire alarms, extinguishers are not mandatory.

What about older homes, do they burn down more often?

The earliest wiring in New Zealand was cloth-wrapped rubber insulated in metal conduit. It was designed for a very small number of power outlets. In the 1930’s rubber wrapped wiring (with an earth wire) was used without conduit. This wiring deteriorated as the rubber insulation perished and became brittle.   Many homes would have been rewired in the 1950’s and 1960’s with PVC or early versions of TPS wiring. This is also known to deteriorate over time, and wasn’t designed to be covered by insulation.  This is why older homes have a higher incidence of fire than new houses.

Homes today have more lights, electronics, gadgets, and appliances (including some that are permanently on standby) than anyone from the 1900’s could ever have imagined. The original wiring was not designed to handle this load and was not built to last.

Fire levies, how does that work?

The New Zealand Fire and Emergency Service is funded almost entirely by the levies included as part of asset insurance.  This money funds the fire stations, the employees, and the fire appliances that respond to house fires.  House insurance includes a levy of $146 inc gst per living unit.   Your insurer will collect this levy as part of your insurance cost and will then pass this on to Fire and Emergency Services on your behalf.  It is important to note that the fire service does not discriminate between payers and non-payers (insured and uninsured)  – meaning that if your house is on fire and you are not insured the fire service will still turn up and get your house fire under control.

How long does it take to rebuild a fire damaged house?

Do not underestimate the amount of time it takes to rebuild after a fire.  You will be waiting for at least 3 months for fire investigators, assessors, engineers, builders and environmental consultants to complete their reporting. and cost estimation.  If your house is suspected to have Asbestos then the process will take even longer while professionals confirm that the property is safe.

The next step is compliance which means delays on consents with council – adding further time to the process.  It could take as long as 6 months before re-construction starts, and depending on the complexity of the build at least 4 months of construction through to completion.

If you are a landlord it is important that your landlord insurance policy has loss of rents cover – which will compensate you for the fact that the tenant has left the property and is no longer paying rent – this could be important if you have a mortgage on the property.

If it is your own home that has been fire damaged and cannot be lived in (which is almost a certainty after a fire) then you will be wanting your home insurance policy to have an alternative accommodation clause; meaning the insurer will pay the costs of your renting another property while your home is being rebuilt.

Tips for making sure you will survive a fire loss to your house:

• Do not under-estimate the cost of fire damage
• Work out the re-build value of your home and update your insurance policy.   There are tools to help you calculate this value
• Fire damaged houses take a long time to rebuild – make sure your house insurance policy allows for this.

Learn more about the different types of house insurance:

Landlord insurance – all in one house and landlord insurance, including loss of rents, malicious damage & more.
Multi unit insurance – for serious landlords with multiple units under the same roof.
Holiday home insurance – for the bach and for holiday homes that are also rented out (eg Bookabach, AirBnB)
House insurance – for your own home, and contents.

If you’re doing alterations or renovations to your house you might be wondering if you’re covered by your initio house insurance policy.

Depending on the works involved you may need to arrange a Contract Works policy, also known as ‘construction insurance’ or ‘ builders all risks’ cover. Initio does not currently offer this type of cover, but you can obtain it through a contract works insurance provider, such as Builtin Insurance.

Who arranges the cover?

If you’re doing an alteration, renovation or work to your existing house, it’s generally your responsibility to arrange construction cover.

For a new build, full contract works cover is required, and is usually arranged by your builder.

Works that don’t require Contract Works cover

Cosmetic Renovations

If you are doing cosmetic renovations to your house (with no structural alterations) you don’t need a contract works policy.  Generally your house insurance policy (including the initio house insurance policies) will cover damage that occurs during the works.

What is considered ‘Cosmetic Renovations’

Cosmetic renovations are work that doesn’t involve structural alterations or changes to the house. Cosmetic renovations that are covered by a standard house insurance policy include:

• Painting
• Installing new carpet
• Replacing a toilet
• Removing non-load bearing walls

If you spill paint on your carpet while renovating, there’s cover to fix the stain. This is not considered structural construction related damage, so your standard house cover will respond.

Works that require Contract Works cover

Structural Alterations

If your work involves any structural alterations to your house, you will need a separate contract works policy to have cover for construction related losses to the existing house, and for the new work itself.

Your existing house insurance policy will stay in place to cover non-construction losses (e.g. an earthquake), and your new contract works policy will provide cover for damage to the:

a) New work (e.g. the new garage being built, or the new roof), and

b) Existing house for construction related risks (e.g. storm damage while roof repair is half complete) – please be sure to include this section on any contract works cover taken

A standard house insurance policy will not cover these risks.

People are often confused about when contract works is required, and what it covers.

What is considered ‘Structural Alterations’

Some examples of structural changes include:

• Re-roofing
• Building a new extension to the house
• Removing a load-bearing wall
• Re-cladding

It’s works that involve changes to the supporting parts of the house (e.g. bearing walls, beams or floor construction), or the weather tightness of the house (e.g. cladding and roofing). These require construction cover and a house insurance policy can’t be relied on to assist.

If you need contract works insurance, we’ve partnered with Builtin to offer you a suitable solution. Like initio, BuiltIn are underwritten by IAG so this means that you will have the same ultimate underwriter for the house and contract works risk, which is important.

Still unsure if your works are structural? Contact us and we will let you know, or contact your insurance company.

What if I do structural work but don’t get Contract Works cover?

Essentially you’re taking the risk of damage to the new works, and any construction related losses to your existing house not having cover.

This will only be covered by a contract works policy, and are excluded from your house insurance cover (see below).

Causes of loss not covered

You are not covered for loss to the home connected in any way with:

• Structural additions or structural alterations
• Water in any form (including hail and snow) entering the home because any roofing material, exterior cladding, window or door has been removed by: (a) you, or (b) any other person who is acting on your authority, or

Construction related losses that would require contract works cover (Examples)

1. 1. • Builder puts nail through water pipe, causing internal flooding.
      • Blowtorch catches fire on wiring and house extension is fire damaged throughout.
      • Builders were replacing roof, and strong storm winds ripped roofing off when it was half complete.
      • Roof trusses collapse when builders removed load bearing wall

Note that these all relate to the construction work, and cause damage to the contract site being the existing structure of the house.

Consider your Risks

It’s up to you to decide if you need contract works cover. While there’s always an element of risk with structural works, you might be happy not to have cover if you think the risk and severity of damage is low.

You should consider the price of contract works cover and the peace of mind provided. Premiums start at around $500 premium for a small project. The longer the works take, the more expensive the policy will be.

My builder has liability cover, why do I need contract works?

Most builders will have some form of their own liability insurance.  Don’t be fooled – this is not a form of contract works insurance.

What does a builder’s Public Liability cover?

It covers them for accidental damage to other people’s property they are held liable for. For example, the builder walks in the house with paint on his shoes and damages carpet.

Note that a builder cannot be held liable for something they didn’t cause (unless they are grossly negligent). If an earthquake or storm damages your work, your builder will not be to blame.

Most public liability policies also exclude property being worked on. In most cases your house is the product (so it’s unlikely there’s cover if the builder causes damage).

The upshot is you shouldn’t rely on your builders public liability policy as an alternative to contract works insurance.

Disclaimer: This support article is a guide only. It is not intended as specific advice for your situation. It is general guidance only.  Consult your insurer/provider if you have specific queries relevant to your specific situation.  

Related Articles:

• Take the house flip insurance quiz
• Are Renovations or Extensions to my home covered?
• House flip insurance
• What is covered by a house flip insurance policy?

Such as a bedroom or a self-contained unit/area? 

If you have a part of your property that you sometimes rent out short-term whilst you are not using it yourself, renting out part of your home means you need the right insurance to protect your entire property, rental income, and liability to any guests.

What counts as short-term renting, for insurance?

Short-term renting is lets of up to 90 days per guest stay. This could be via platforms like Airbnb or other short-term rental arrangements. When the space isn’t being rented, you or your friends and family use it. If a guest books in for a stay longer than 90 days, it is classed as long term and the property should then be insured under our Landlord Insurance product.

Does this match your situation?

• The area (unit/bedroom) is used for short-term lets between your own use.
• This could be an occasional Airbnb, but;
  • You must use the area yourself (or friends and family do) between paying guests

What insurance do you need?

For this setup, you’ll only need one insurance policy that covers your home and the short-term rental use. This is called an own home, partially rented policy, and it provides cover for both your personal use and rental activities.

Own Home, Partially Rented insurance

What does this policy cover?

Having the right policy means you’re covered for:

• Your home – Protection for your home including the area sometimes let.
• Short-term rental risks – Cover for things like accidental damage caused by guests, loss of rents and your liability to guests 
• Loss of rent – If a guest cancels or you’re unable to rent the space due to an insured event, you’ll be covered for lost income.

Get covered today

With initio, you can get a quick quote and buy insurance online in minutes, making it easy to ensure your property is fully protected. Getting a quote and buying insurance online with us is easy, but our cover is anything but basic. We offer comprehensive protection to ensure you’re fully covered.

Own Home, Partially Rented insurance

Why is this policy important?

Standard home insurance might not cover short-term renting, leaving you exposed to potential financial risks. A policy designed for partial rental use ensures you’re protected, whether you’re welcoming guests or enjoying the space yourself.

Need help? If you’re unsure about what policies are right for your situation, contact us to make sure you’re fully protected.

Get covered today with initio – Quick quotes, easy online cover.

Not quite what you’re looking for? Maybe some of these other scenarios suit you better:

• Do you have a second dwelling on your property that you rent out?
• Renting out a second dwelling solely for short-term stays
• Insurance for a non-rented second home on your property
• Second dwelling on your property that your family lives in
• Renting out two dwellings on your property