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Home loan know-how

How lenders assess irregular income for a home loan

Casual hours, overtime, commission, gig platforms and business income all get treated differently. Here's how lenders do the maths, and how to present yours.

  • Averaging explained
  • Shading on overtime and commission
  • Tips to maximise what counts

Updated November 2026 · Reviewed by our credit team · 4 min read

In short

Lenders assess irregular income by averaging it over a period, usually 6 to 24 months depending on the income type, and often 'shading' less reliable parts such as overtime, bonuses or commission by counting only a percentage. Self-employed and gig income is assessed on net figures from tax returns, BAS or bank statements. The longer and steadier your history, the more of your income a lender will count.

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Income types covered

  • Casual wages
  • Overtime and penalty rates
  • Commission
  • Bonuses
  • Gig platform income
  • Self-employed income
  • Seasonal income
  • Second jobs

Averaging

For casual and variable income, lenders usually take your year-to-date income and annualise it, or average your last one to two years from payslips and tax records. A short history or a big recent jump may mean the lender uses the lower of the two figures.

Shading

How variable income is often treated
Income typeCommonly countedHistory usually wanted
Regular overtimeAll or part, depending on lender and industry6 to 12 months
CommissionOften averaged, sometimes shaded12 to 24 months
Annual bonusOften averaged over two years, or partly counted2 years
Casual wagesAveraged3 to 12 months
Gig platform incomeNet, averaged6 to 12 months
Self-employedNet taxable income with add-backs, or alt doc figures1 to 2 years, or 6 to 12 months ABN for alt doc

Policies differ widely, which is why the same person can get very different borrowing power from different lenders.

Making your income count

  • Keep all income going into one account so statements tell a clear story.
  • Hold onto payslips with year-to-date figures and your payment summaries.
  • Lodge BAS and tax returns on time if you're on an ABN.
  • Download annual summaries from every gig platform.
  • Explain any gaps, such as parental leave or a short illness.

Related pages: casual and contractor home loans, Uber and gig worker home loans and self-employed home loans.

Living expenses: the other half of the equation

Borrowing power isn't just about income. Lenders also estimate your living expenses, using what you declare and a benchmark, whichever is higher. With irregular income, a lender may apply a bigger buffer. Keeping your declared expenses realistic and consistent with your bank statements avoids surprises.

A worked example

A real estate agent earns a modest base salary plus commission. Over the last two years commission has made up more than half her income, but one year was much stronger than the other. One lender averages both years and counts 80% of the commission; another uses the lower year only. The difference in borrowing power is significant, which is why matching lender to income type matters.

When a specialist lender helps

If your irregular income comes with other complications, such as a short history, an ABN under 12 months or a credit blemish, a specialist lender may be more flexible. See the non-conforming home loans hub.

What you’ll need

  • Payslips with year-to-date income
  • Payment summaries or tax returns
  • BAS
  • Platform summaries
  • Bank statements

Who it usually suits

  • Casuals, contractors, gig workers and the self-employed
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FAQs

How lenders assess irregular income: your questions answered

Do lenders count overtime?

Many do, in full or in part, if it's regular and has a track record. Some industries, such as nursing and mining, are treated more generously.

How long do I need commission income?

Often 12 to 24 months, so the lender can average it.

Why did one lender offer more than another?

Lenders differ in how they average and shade variable income, and in the living-cost assumptions they use.

Can I use income from a second job?

Usually, if it has some history, often six to twelve months. Lenders may count all or part of it.

General information only — it doesn’t take into account your personal circumstances. Credit is subject to lender approval, terms and fees.

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