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Module 2 of 8 · 8 min read

Income: what counts, and how much

Overtime, bonus, allowances and rent are rarely counted in full, and each lender cuts them differently.

The first line of the sum is where most of the arguments start. A payslip shows what the client earned; a lender counts what it believes the client will keep earning. Base salary from a permanent job is about as safe as income gets, so it counts in full almost everywhere. Everything else is trusted less, and lenders express that by counting only part of it. Brokers call this shading.

The usual suspects

IncomeTypical range countedWhat moves it
Base salary (permanent)100%Probation, a very new job
Overtime and shift penalties0% to 100%Whether it's regular, how long it's been earned, essential-worker status
Casual incomeAnnualised over 46 to 52 weeksTime in the job; how many weeks a year the lender assumes
Bonus0% to 100%Two years of history; latest year, average or lower of the two
CommissionOften 80% or averagedLength of history and how much it swings
Allowances0% to 100%Fixed or variable; whether it's paid for costs actually incurred
Rental incomeUsually 70% to 80%Property type, location, short-term letting
Government paymentsVaries widelyWhich payment, and for family payments, the children's ages
Foreign incomeOften heavily cut, or not at allCurrency and country

Two lenders can each be perfectly reasonable and still land a long way apart. One counts all of a client's overtime because it has been steady for three years; another counts 80% of it as a matter of policy. One averages two years of bonus; another takes only the lower year. Play with the shading below to see how quickly it adds up.

Try it

Same income, two lenders

$25,000
$12,000
$550
Lender A
Overtime counted
Bonus counted
Rent counted
Counts $59,880 of $65,600
Lender B
Overtime counted
Bonus counted
Rent counted
Counts $46,020 of $65,600
Difference in income counted
$13,860 a year
Roughly worth in borrowing
$98,000
in favour of Lender A

Assumes the extra income would be taxed at 32% (30% plus the 2% Medicare levy) and tested at 9% over 30 years. The percentages are typical of the market, not any one lender's policy.

Essential workers: the overtime exception

Many lenders count more of the overtime earned by nurses, paramedics, police, firefighters and similar roles, often all of it, on the reasoning that overtime is a built-in, reliable part of those jobs. Not every lender does, and the ones that do don't always define “essential” the same way.

Back to our nurse. Turn on the “what if” to run her again with the overtime treated like anyone else's.

Case study
The nurse, again
Base salary
$92,000
Overtime
$34,000 a year
The question
Is her overtime counted as an essential worker's?
Lowest
$608k
Middle lender
$660k
Highest
$757k
Gap
$149k
Maximum borrowing, 27 lenders This borrower
  1. Lender 1$608k
  2. Lender 9$612k
  3. Lender 22$625k
  4. Lender 14$644k
  5. Lender 3$649k
  6. Lender 6$649k
  7. Lender 24$649k
  8. Lender 13$650k
  9. Lender 4$652k
  10. Lender 12$652k
  11. Lender 2$655k
  12. Lender 21$657k
  13. Lender 25$657k
  14. Lender 20$660k
  15. Lender 23$661k
  16. Lender 7$663k
  17. Lender 27$663k
  18. Lender 8$666k
  19. Lender 5$666k
  20. Lender 18$676k
  21. Lender 26$677k
  22. Lender 19$699k
  23. Lender 17$700k
  24. Lender 10$700k
  25. Lender 15$703k
  26. Lender 11$745k
  27. Lender 16$757k
Figures from each lender's serviceability calculator as rebuilt in AutoCalc, run on 22 Oct 2026. Lenders are unnamed, and the numbers are reshuffled for every case study. Rates and policy change often, so treat these as an illustration, not a quote.

When her overtime stops being treated as essential-worker income, 17 lenders of the 27 lend less, by up to $65k. 10 lenders don't move at all: either they already counted all of it for everyone, or they never gave essential workers anything extra. That's exactly the kind of thing you want to know before you choose where to send the deal.

Takeaways

  • Base salary from a permanent job counts in full almost everywhere; everything else is shaded.
  • Overtime, bonus, commission, allowances and rent are where lenders differ most on PAYG clients.
  • Essential-worker overtime is a common, valuable exception, but not a universal one.
  • Lenders work out tax themselves on the income they count.

Check your understanding

0 of 3 answered
  1. 1. What does it mean when a lender 'shades' rental income at 75%?

  2. 2. A client's overtime is regular, but they're a retail manager, not an essential worker. What should you expect?

  3. 3. Why can an income difference between lenders be smaller than it first looks?