Why Home Insurance Is Becoming Unaffordable in Australia (and What You Can Do About It)

📈 How much have premiums actually gone up?🔗

The national average combined home and contents premium rose roughly 51% over the five years to October 2025, from around $1,940 to $2,938, according to analysis from actuarial firm Finity. That's more than double the pace of the decade-long average rate of increase. Canstar's separate research, based on around 25,000 new customer quotes, found the most recent year alone saw a 14% jump, up $343 from $2,452 to $2,795.

Every state has felt it, but not equally. Several states have seen double-digit annual increases, while Western Australia's statewide average rose more slowly, partly because premiums in its northern regions were already sitting at very high base levels. The Northern Territory recorded the largest dollar increase of any jurisdiction in the most recent year, its average policy rose around $700.

🎯 The essential: The averages only tell part of the story. Some capital cities are now genuinely expensive to insure, Darwin's average sits around $4,015 a year and Sydney's around $3,964, and that's before you factor in the regional gap covered further down.

What this looks like for real households is the part that matters most. The Actuaries Institute found that in the year to March 2024, roughly 1.61 million Australian households, 15% of the total, were in extreme home insurance affordability stress, up sharply from 12% in 2023 and 10% in 2022. Affordability-stressed households spend an average of 9.6 weeks of their gross annual income on home insurance, around seven times more than households not under stress. Around 5% of Australian households with a mortgage are affected, representing $57 billion of loan balances. This isn't a fringe problem affecting a small unlucky group. It's reaching well into mainstream Australia, and the ACCC's own consumer research has found that roughly half of surveyed households now rate their home insurance as unaffordable or barely affordable.

🔍 Why are premiums rising so fast?🔗

Three forces are hitting Australian homeowners at the same time, and understanding them makes the increases feel less arbitrary, even if they don't feel any less painful.

Natural disasters are getting more expensive. This is the single biggest driver. Insurance Council of Australia data shows extreme weather events cost insurers roughly $3.5 billion in insured losses in 2025 alone, from around 264,000 claims, and insurers have paid out an average of about $2.1 billion a year in extreme weather claims over the past 30 years. Looking ahead, the ICA projects those annual costs will more than double, from around $4 billion a year today to $8.7 billion or more a year by 2050, and that's described as a conservative estimate. Here's an uncomfortable truth worth sitting with: APRA data shows Australian insurers have actually posted underwriting losses on home insurance in several recent quarters, including a loss of roughly $1.08 billion in the December 2025 quarter alone. Premiums are rising partly because insurers have genuinely been losing money on this class of cover, not purely because of profiteering.

Reinsurance costs get passed straight through. Reinsurance is, in effect, insurance for insurance companies, and as global extreme weather worsens, global reinsurance has become more expensive. In northern Australia specifically, reinsurance makes up a substantial share of the average home policy cost, and those costs flow directly into what you pay. There's a genuine bright spot here: the Cyclone Reinsurance Pool has measurably reduced reinsurance costs in northern Australia, which is exactly why premiums there have fallen relative to where they'd otherwise be. In the rest of the country, where the pool doesn't apply, reinsurance costs have simply kept climbing.

Rebuilding costs have surged. Home insurance covers what it costs to rebuild your home, not what it's worth on the market. ABS data shows house construction output prices rose more than 40% between September 2020 and June 2024 alone, with some industry analysis putting the total increase since before the pandemic at close to 47%. Growth has slowed since, but costs are still climbing, not falling. When it costs more to rebuild a home, insurers have to charge more to cover that risk, and if your sum insured hasn't kept pace with construction cost inflation, you may be significantly underinsured without realising it, more on that below.

🗺️ Which areas and properties are hit hardest?🔗

Not every Australian is feeling this equally, and the geographic divide is stark. ACCC data for 2024-25 shows North Western Australia facing the highest average premiums by far, followed by the Northern Territory, then North Queensland, all well above the rest of the country's average.

Within those high-risk regions, individual properties can pay far more again. Some North Western Australia homeowners face premiums of $20,000 to $28,000 a year. In flood-prone postcodes, quotes for flood cover alone can reach $10,000 to $60,000 a year, and some insurers have stopped offering flood cover entirely in the highest-risk postcodes.

If you live in a region exposed to cyclones, flooding, or both, you're carrying a disproportionate share of Australia's climate risk through your premium, and it's worth saying plainly: that's not a personal failing or a sign you've done anything wrong. It's where you live, and it's a genuinely difficult position to be in.

⚠️ The hidden danger: underinsurance🔗

Rising premiums are pushing some Australians to reduce their cover or drop it altogether, and that's creating a second, quieter crisis sitting right alongside the affordability one.

Analysis by quantity surveying firm MCG suggests Australian residential property is underinsured by an average of around 18%, driven by fast-rising construction costs, inconsistent automated insurance calculators, and homeowners who simply haven't updated their sum insured in years. Separate 2025 polling from The Australia Institute found around 19% of homeowners believe their home is under or uninsured, which on Australia's roughly 7.5 million owner-occupied dwellings works out to well over a million homes, and 29% say the same about their contents. APRA estimates around one in seven Australian houses is effectively uninsured today, and its climate stress testing suggests that could rise to one in four by 2050 if nothing changes, an extra one million homes without adequate cover.

Why this matters so much: for most Australian households, the home represents the large majority of their net wealth. Losing it in a disaster without adequate insurance isn't just a financial setback, it can be genuinely catastrophic, potentially leaving a family in serious debt or worse. The cruel part of underinsurance is that you usually don't find out until after a disaster, submitting a claim expecting full cover and discovering the policy only pays a fraction of what it would actually cost to rebuild, and being left to cover the gap yourself at the worst possible moment.

We've gone deep on this exact problem in our full guide to underinsurance in Australia, including how the coinsurance (average) clause can shrink your payout on any claim, not just a total loss. And if you want the full breakdown of how home and contents policies actually work, our guide to home and contents insurance in Australia covers how to calculate your rebuild cost properly.

✅ What you can actually do about it🔗

The situation is genuinely difficult, especially if you're in a high-risk area, and no amount of shopping around fully fixes a structural problem. But there are real, practical steps worth taking.

Compare insurers every year, seriously. Don't auto-renew. This is the single most important habit here. Insurers don't always reward loyalty, and prices for the same property can vary significantly between them. Set a reminder a month before renewal, get at least three quotes, and make sure you're comparing like for like, the same sum insured, excess and cover inclusions.

Understand what's actually driving your premium. It's based on your property's risk profile, location, construction type, flood zone, cyclone exposure and bushfire risk. Ask your insurer what's driving your price, some will tell you. And check your sum insured carefully, make sure it reflects the actual rebuild cost at today's prices, not what you paid or what the property is worth on the market. A quantity surveyor can provide a proper rebuild cost estimate if you're not sure.

Rethink your excess. A higher excess means a lower premium. If you can genuinely afford to absorb a larger out-of-pocket cost if you ever need to claim, increasing your excess can meaningfully reduce what you pay each year. The trade-off is real, you'll pay more upfront if you do claim, so think honestly about what you could actually cover yourself.

It's the same logic as a household emergency fund, cash set aside specifically so an unexpected cost doesn't tip into a crisis.

Don't strip out essential cover just to save money. This is where many Australians make a costly mistake. When premiums rise, the temptation is to reduce cover, drop flood protection, or cut contents insurance altogether, and that can leave you dangerously exposed. Flood cover is worth keeping in flood-prone areas even when it's expensive, the cost of being uninsured after a major flood far exceeds any premium saving. If you genuinely need to reduce costs, raising your excess is almost always the safer lever than removing a type of cover entirely.

Look into mitigation discounts and grants. Some insurers offer discounts for homes strengthened against natural hazards. On the wind component of Cyclone Reinsurance Pool premiums, the standard mitigation discounts are meaningful, a new roof to current standards can bring around 30% off, a roof tie-down upgrade around 20%, window protection around 10% and roller door bracing around 8%. Very few eligible homeowners currently claim them, so it's worth asking your insurer directly whether your home qualifies.

Queensland Household Resilience Program. Open as of writing, and recently extended with a further $20 million in funding. If you own and occupy a home built before 1984 within roughly 50km of the coast between Bundaberg and Cape York, and west to the Northern Territory border, you may be eligible for a grant covering 80% of approved cyclone-resilience works, up to a maximum of $15,000. Funding is limited and allocated until capacity is reached, so it's worth applying sooner rather than later if you think you qualify.

NSW Resilient Homes Program. This one has closed to new applications, applications for resilient measures closed 31 March 2026. If you were affected by the 2022 Northern Rivers or Central West floods and already accepted into the program, support for home raising, retrofitting or buyback continues through to 2028. If you missed the window, it's worth contacting the NSW Reconstruction Authority directly in case a future round opens.

🏛️ What the government is doing (and its limits)🔗

The federal government has introduced several measures worth knowing about, though each comes with real limitations.

The Cyclone Reinsurance Pool is the most significant intervention so far, covering millions of buildings across northern Australia. It lets insurers reinsure cyclone risk at a lower cost than the private market, with savings intended to flow through to policyholders in high-risk areas. The ACCC's final monitoring report, released in June 2026, found real benefits: average home insurance premiums in medium-to-high cyclone risk areas fell around 11% in the first year after an insurer joined the pool, and around 14% after two years. But the ACCC has been direct that the pool alone is unlikely to deliver affordable premiums on its own. No new insurers have entered the northern Australian market since it launched, premiums in the rest of the country have kept rising regardless, and the pool only ever targeted the cyclone component of your premium, leaving flood, bushfire and other risks completely untouched.

The Disaster Ready Fund provides up to $200 million a year for disaster mitigation and resilience projects, with state and territory co-contributions required. It's a meaningful investment, but it's focused on community and infrastructure resilience, things like flood levees and evacuation planning, rather than direct premium relief for individual households.

Senate inquiry recommendations. A Senate Select Committee reported in November 2024 with eight recommendations, including expanding the Cyclone Reinsurance Pool to cover all natural disasters, not just cyclones, growing the Disaster Ready Fund, and reducing or removing state taxes on insurance policies, stamp duty alone is estimated to add roughly 9 to 11% to the cost of a typical premium. These are genuinely significant proposals, but they remain proposals. Implementation takes time, and several require the cooperation of state governments that don't always move at the same pace as the federal recommendations.

The honest assessment is that government action is moving in the right direction, but it hasn't kept pace with the scale of the problem. The underlying drivers, climate risk, reinsurance costs and building costs, aren't going away on their own.

🌏 The bigger picture🔗

Home insurance becoming unaffordable isn't just a personal finance issue, it's a signal of something larger. When insurance becomes unaffordable or unavailable in a region, it doesn't only hurt individual homeowners, it affects property values, mortgage availability, community resilience, and ultimately whether people can continue living in certain areas at all. Some flood-prone and cyclone-exposed communities may be heading toward a future where private insurance simply isn't viable at any price most residents can pay.

The decisions being made now, about land use planning, climate policy, government intervention in insurance markets, and investment in disaster mitigation, will shape whether insurance stays accessible for all Australians or becomes a luxury only some can afford.

For now, the most useful thing you can do is stay informed, review your cover carefully, take advantage of any mitigation grants or discounts you're eligible for, and support the systemic changes that actually address the causes. This isn't a problem individual households created, and it's not one they can solve alone.

❓ Frequently asked questions🔗