Why your fire insurance deductible can affect mortgage approval
Most Australian home loans do not require a policy specifically called “fire insurance”. Lenders usually require residential building insurance covering fire and other insured perils before settlement. Australian policies generally call the borrower’s contribution to a claim the “excess”, although “deductible” is also understood. The chosen amount can affect mortgage approval through the available cover, the affordability of the premium and the borrower’s ability to absorb a loss.
A $2,000 excess may cost less than a $10,000 excess, but it does not automatically make a home loan stronger or weaker. The property’s location, construction and exposure to bushfire or storm usually matter more than a voluntary deductible. The core differences are straightforward:
| Choice | Premium effect | Claim exposure | Mortgage relevance |
|---|---|---|---|
| Lower excess | Usually higher | Smaller contribution after a claim | May improve cash-flow resilience after a loss |
| Higher excess | Usually lower | Larger contribution after a claim | May reduce initial costs but weaken emergency reserves |
| Property-specific excess | Set according to risk and location | Can be substantial for bushfire, storm or flood | Availability and affordability may affect approval or settlement |
How lenders assess insurance risk
At application, a lender normally focuses on the purchase price, deposit, income, debts, credit history and ability to service the loan. Building insurance is commonly required as a condition of settlement, with the amount insured broadly aligned to the property’s rebuild cost. The selected excess is rarely a standard approval criterion, and lenders generally leave that choice to the borrower.
Under the National Consumer Credit Protection Act 2009, responsible-lending assessment for owner-occupied loans considers whether repayments are more likely than not to meet the required obligation. Lenders may include insurance premiums in essential outgoings. A high excess can reduce that expense, but a borrower unable to fund the eventual claim may have a weaker financial position. Rejection solely because of an excess is uncommon; difficulty obtaining acceptable cover or a premium that makes repayments unaffordable is more likely.
What deductible means in Australian policies
Most policies separate building insurance from contents insurance. The building section covers the physical home and often prescribed fixtures, while contents cover possessions such as furniture and electronics. An excess may apply per event or per insured person, and it can be a fixed dollar amount or a percentage of the insured value.
Lower excesses generally produce higher premiums because the insurer assumes more of each claim. Higher excesses reduce that exposure, although the saving varies by insurer, property and selected cover. Quote comparisons are therefore more reliable than assuming a particular excess will always save a set amount.
The policy definitions and product disclosure statement are crucial. Buyers should check whether storm, flood, fire, smoke damage and temporary accommodation are included, limited or separately insured. A fire claim may also affect several policies, so understanding how excesses accumulate prevents a surprise after an insured loss.
When bushfire and fire risk change cover
Insurers assess the address, construction, roof, surrounding vegetation and distance from bushland. Some impose a standard excess, while others apply a higher or unlisted-peril excess where the fire risk is greater. If cover is declined, restricted or unusually expensive, obtaining a policy acceptable to the mortgage lender can delay or prevent settlement.
This matters around Melbourne’s eastern fringes, Sydney’s western edge, the Adelaide Hills and regional areas of New South Wales and Victoria. During peak bushfire seasons, NSW and Victoria can impose total fire bans to reduce the chance of ignitions. Those restrictions support risk management, yet they do not replace suitable insurance or guarantee that every property will receive cover.
Construction features such as bushfire-rated shutters, defensible-space maintenance and ember-resistant materials can affect both premiums and excesses. Buyers should obtain an address-specific quote and check whether any mitigation requirements apply to the policy they are being offered.
How the excess affects affordability
A higher excess may appear attractive because it frees monthly cash for the deposit, mortgage repayments or another financial goal. It also leaves the borrower responsible for a larger part of a claim. A household with limited savings should compare the annual premium saving with the amount it could realistically absorb without selling the home or withdrawing emergency funds.
If the lower premium competes with saving a deposit or an emergency fund, put the figures into a broader personal finance checklist before applying. The lender may assess the premium and reserves, while the borrower still needs a workable plan for the excess.
Apartment buyers face a different arrangement. The owners corporation usually maintains building cover under state strata legislation, including the NSW Strata Act 1974 and Victoria’s Owners Corporations Act 2006. Individual contents, additional living-expense cover and gaps between the body corporate policy and a mortgage policy still need checking with the lender.
Where claims meet mortgage security
The lender’s interest is normally noted on the building policy. If the policy is cancelled, lapses or is replaced without suitable continuity, the borrower may breach the mortgage contract. Changes to occupancy, renovations or insurer arrangements should therefore be discussed with the lender or mortgage broker.
The excess and the amount insured solve different problems. The excess determines the borrower’s contribution, while underinsurance can leave a rebuild shortfall even when a claim is accepted. At renewal, a new valuation may reveal that the sum insured is no longer adequate, and the resulting higher premium or restricted terms can affect ongoing affordability.
Following a major fire, the insurer normally settles the rebuild claim subject to the policy terms and excess. Temporary accommodation is not always included. Insurance claims generally do not appear on a consumer credit report, but an insurer’s claims history can influence future premiums and underwriting.
Why lender and insurer decisions differ
The insurer decides whether to accept the property, what cover is available and on what terms. The lender then decides whether that policy satisfies its security requirements. Some lenders work from a panel of approved insurers, so a policy bought elsewhere might be valid yet fail to meet the lender’s administration or coverage conditions.
There is no universal deductible threshold that guarantees approval or rejection. The appropriate balance depends on the insured property, the premium charged, the borrower’s reserves and the lender involved. Written confirmation from the lender or broker before settlement is more valuable than assuming a standard excess will be accepted.
Preparing a mortgage-ready insurance position
A sound application accounts for both the cost of protection and the amount that must remain available after a claim. Borrowers should establish the property-specific terms before treating insurance as merely another settlement expense.
- Request several quotes for the exact address using different excess levels, including relevant storm or flood options.
- Read the definitions for per-event excesses, percentage excesses, building cover and contents cover.
- Confirm the lender’s insurer and coverage requirements in writing before paying for a policy.
- Compare the premium saving with the cash reserve needed to meet the selected excess.
- For an apartment, obtain the owners corporation’s insurance details and identify any individual cover gaps.
- Review the policy after renovations, occupancy changes or material changes in the surrounding bushfire risk.
The strongest mortgage application treats the deductible as part of a broader risk-management decision. An affordable premium matters, but so does reliable cover and enough liquidity to meet the excess when a claim occurs.