How to prove non-taxable income for a mortgage application

Non-taxable income can still strengthen your borrowing position, but a lender will usually want clear evidence that the payments are genuine, regular and likely to continue. Examples may include certain government benefits, child support, compensation payments, pensions and investment income that is treated favourably for tax purposes.

Australian lenders do not all assess these payments in the same way. A bank may accept the full amount, use only part of it, or exclude it altogether when calculating serviceability. Understanding the policy before lodging an application can save time and prevent an avoidable credit enquiry.

Income type	Common evidence	How a lender may assess it
Child support	Court order, Services Australia statement, bank statements	Often accepted if payments are consistent
Age Pension or disability pension	Centrelink statement, bank statements	May be accepted if ongoing and within policy
Family Tax Benefit	Centrelink statement, bank statements	Frequently shaded or accepted only in part
Workers compensation	Settlement or payment documents	Depends on duration and certainty
Certain investment income	Statements and tax records	May be adjusted for reliability and expenses

What lenders mean by non-taxable income

Non-taxable income is money you receive that is not included in your assessable income for income tax purposes, or is treated as exempt under Australian tax rules. “Tax-free” does not automatically mean “accepted by the bank”. The lender is primarily concerned with whether the income can reliably support repayments.

For example, an Age Pension may be considered regular income, while a one-off compensation payment is unlikely to help much with borrowing capacity. Family Tax Benefit may be accepted by some lenders, particularly when a dependent child is part of the application, but the amount can be reduced in the servicing calculator.

Your lender may also apply a shading factor. This means it counts only 80 or 90 per cent of the documented amount to allow for possible changes. The remaining income is then tested against the proposed mortgage repayment, household spending and existing debts.

Sources that may count

Child support is commonly considered when there is a formal agreement, court order or dependable payment history. A lender will generally prefer to see the money arriving in your bank account over several months rather than relying only on a verbal arrangement. Arrears or irregular transfers can make the income harder to use.

Some Centrelink payments may be included, such as the Age Pension or certain disability-related payments. Other benefits, including JobSeeker, may be excluded or accepted only when the applicant meets a lender’s specific conditions. Payments connected to caring responsibilities, rent assistance or supplements can also be treated differently.

Regular pension income from superannuation may be assessed separately from government support. If you receive an account-based pension, the lender may request evidence of the balance, withdrawal schedule and expected duration. Income from a boarder or family member is another area where policies vary considerably, even when deposits appear regularly.

Documents that make the income credible

Start with an official statement showing the payer, payment type, amount and payment frequency. For Centrelink income, a recent income statement or payment summary downloaded through myGov may be useful, although a lender can request a specific Services Australia document. Keep the document current because older statements may not reflect a recent change.

Bank statements should support the story shown in the official paperwork. Highlighting regular credits can make the assessment easier, but avoid editing or cropping statements. Lenders may use transaction histories from the last three to six months to check that child support or other benefits are actually being received.

You may also need a court order, parenting agreement, pension entitlement letter, workers compensation schedule or settlement document. If the payment has an end date, provide details of what happens afterwards. A lender will want to know whether the household can still afford the loan when that income stops.

Showing that payments will continue

Continuity is often as important as the amount. A payment that has been received for years is generally easier to assess than one that began last month. Include a clear record of the start date and any evidence that the entitlement is expected to continue.

For child support, explain whether the amount is fixed, indexed or subject to review. If payments are made through Services Australia, records may be especially helpful because they show an established collection arrangement. Private transfers can still be considered, but the lender may ask for extra bank evidence.

Workers compensation and settlement income require careful handling. A temporary weekly payment may cease when you return to work or reach a medical milestone. If the income is due to finish, the lender may assess your application using your ordinary employment income instead, rather than treating the payment as permanent.

How lenders adjust borrowing calculations

A lender assesses your income against a stressed interest rate, not merely the advertised rate. It also includes council rates, utilities, insurance, dependants, credit card limits and other commitments. This is why an income stream that looks substantial in your bank account may add less to borrowing power than expected.

Some lenders “gross up” eligible non-taxable income. In practical terms, they may increase the assessed value because no tax is payable on it. The calculation is policy-specific and does not mean you receive extra cash. The bank is simply estimating the equivalent pre-tax income for its serviceability test.

A mortgage broker can compare policies, including options for home finance options when a major bank’s calculator is restrictive. This does not guarantee approval, and the broker still needs to verify the income and comply with responsible lending requirements.

Mistakes that can weaken an application

A common error is describing every government payment as permanent income. Benefits can change after a child reaches a particular age, household circumstances shift or Services Australia reassesses eligibility. Give the lender accurate information instead of assuming the most favourable treatment.

Another problem is applying before checking existing liabilities. Buy now, pay later accounts, personal loans and unused credit card limits can reduce serviceability. In Sydney or Melbourne, where property prices and loan sizes can be high, a modest reduction in assessed income may materially change the available budget.

Do not rely on cash payments that cannot be documented. Similarly, avoid transferring money between accounts simply to make deposits look larger. Lenders can ask for statements from several accounts and may investigate unexplained credits, gifts or large transfers.

Building a cleaner application

Prepare a simple income schedule listing each payment, its amount, frequency, payer and expected end date. Match every line to supporting evidence. This helps your broker or lending manager understand the household position quickly and reduces back-and-forth requests.

Keep employment income and benefit income clearly separated where possible. If you work casually, include payslips, an employment letter and recent bank statements alongside your non-taxable income documents. A stable job combined with a well-documented pension or support payment may present a stronger profile than either source alone.

Before making an offer on a property in Brisbane, Perth or elsewhere, obtain a realistic borrowing assessment rather than relying on an online estimate. Ask how the lender treats each payment, whether it shades the amount and what happens when the benefit or agreement reaches its review date. This approach gives you a clearer view of repayments and helps avoid committing to a loan that depends on income the bank will not fully recognise.