Second Job Tax Calculator

Estimate the tax withheld from a second job on the 2026-27 no tax-free threshold scale, and see why a second job is not taxed at a special higher rate.

Jump to:Second Job Tax CalculatorWhy One Job OnlyWith vs Without the ThresholdThe Higher Rate MythWhich Job Claims ItFAQRelated Resources
Second Job Pay
Results update automatically as you type
$
Gross pay before tax. Enter the amount and how often you receive it
Claim the tax-free thresholdUntick for a second job so the first $18,200 is taxed
HELP / HECS debtAdds compulsory study-loan repayment above $69,528
Salary includes superannuationTick if your package is quoted including the 12% super guarantee
Medicare levy exemptionFor eligible foreign residents and exemption category holders
Interesting facts
  • The tax-free threshold belongs with one employer at a time, normally the one that pays you the most. Every other payer should withhold from the first dollar.
  • Claiming the threshold with two employers leaves the first $18,200 untaxed twice during the year. The ATO still assesses your combined income, so the shortfall lands as a bill.
Your Results
Your take-home pay
$18,380
per year · $707 per fortnight · $353 per week
Tax withheld
$2,420
Effective rate
11.6%
Employer super
$2,496
WeeklyFortnightlyAnnually
Gross pay$400$800$20,800
Income tax−$47−$93−$2,420
Take-home pay$353$707$18,380
Swipe right →

Tax bracket breakdown

BracketRateTaxableTax
$0 – $45,00015%$20,800$3,120
Low income tax offset−$700
Income tax$2,420

Tax by bracket

15%$3k

Where your gross goes

  • Take-home pay88%
  • Income tax12%
Annual take-home
$18,380
Per fortnight
$707
Disclaimer: This tool provides general estimates only and does not constitute tax or financial advice. Results are based on ATO rates and formulas for 2026-27 but may not capture your complete personal circumstances. Verify your figures with the ATO or a registered tax agent before making decisions.

The calculator opens with the threshold toggle off, the correct setting for a second job. The rest of our pay tools sit on the all calculators page.

Why the tax-free threshold applies to one job only

The first $18,200 you earn each year is tax free, but it is $18,200 across all your income, not $18,200 per employer. You claim the tax-free threshold on the TFN declaration you give one payer, and every other payer withholds from the first dollar on the no-threshold scale.

The system works this way because each employer only sees its own payroll. If both jobs left the first $18,200 untaxed, the year would end with two thresholds claimed against one entitlement, and the ATO would collect the difference after you lodge. Ticking no threshold on the smaller job is what keeps the end-of-year surprise small.

Weekly withholding with and without the threshold

Same weekly wage, two settings. The no-threshold column is what a second employer withholds under the 2026-27 scales; the difference is not extra tax, just earlier collection. These figures follow the same maths as the weekly tax table.

Weekly wageThreshold claimedNo thresholdExtra withheld / week
$300$0$32$32
$400$0$47$47
$600$30$83$52
$800$74$126$53
Swipe right →

Resident rates, annualised liability divided across 52 weeks, no HELP debt. At $300 and $400 a week the threshold column is zero because the annualised income sits inside the tax-free amount.

The second job tax rate myth

There is no special rate for second jobs in Australia. The ATO assesses one annual income against one set of 2026-27 tax brackets, however many employers paid it. Take a main job on $60,000 and a second job paying $400 a week, $20,800 a year. Tax on the main job alone is $9,620. Tax on the combined $80,800 is $16,376. The extra $6,756 equals 32.5% of the second income: the 30% bracket plus the 2% Medicare levy and the tapering low income tax offset. Earn the same total in one job and the tax is identical to the dollar.

Withholding is where the trap sits, and it points the other way. The no-threshold scale takes only $2,420 from that second job across the year, well short of the $6,756 it really adds, because the scale cannot see that your main job has already used up the lower brackets. Check the full-year position on your combined income with the PAYG calculator.

Which job should claim the threshold

Claim it with the job that pays you the most. The bigger income uses the whole $18,200, and the smaller job then withholds on the no-threshold scale from dollar one. If the jobs swap size mid-year, hand a new withholding declaration to each employer rather than letting the old settings ride.

Once both pay packets are set correctly, look at the combined result rather than each payslip alone. Run the total of both jobs through the take-home pay calculator to see the real weekly, fortnightly and monthly net position.

Frequently asked questions

How much tax do I pay on a second job earning $400 a week?
$47 a week is withheld under the no-threshold scale for 2026-27, $2,420 across the year. Your final tax depends on combined income from both jobs, so treat withholding as a deposit, not the bill.
Is tax higher on a second job?
No. Annual tax is set by your combined income against the standard brackets. A second job only looks harsher because withholding starts from the first dollar without the tax-free threshold.
Which employer should I claim the tax-free threshold with?
The one that pays you the most. That puts the $18,200 tax-free amount against the income that uses it fully and keeps withholding on the smaller job on the correct scale.
Can I claim the tax-free threshold on both jobs?
If your combined income for the year will stay under $18,200, no tax is due either way and anything withheld comes back at your return. Above that, claiming it twice under-withholds and the shortfall becomes a bill at assessment.
Why did I get a tax bill after taking a second job?
The withholding scales cannot see across employers. In the $60,000 plus $20,800 example above, total withholding runs about $12,040 while the real 2026-27 liability is $16,376. The $4,336 gap arrives with your notice of assessment.
What about HELP debts with two jobs?
HELP repayments are assessed on combined income. On $80,800 the 2026-27 repayment is $1,691, but an employer only withholds the loan component from the pay it can see, so two mid-sized jobs often withhold nothing for it. Budget separately.
Can I just have extra tax taken out?
Yes. Ask either payroll to withhold an extra fixed amount each pay, or lodge an upwards withholding variation with the ATO. In the example above, an extra $83 a week closes the gap.
Narelle Hartigan
Narelle Hartigan, CPA Verified Expert
Tax Accountant & PAYG Specialist

Narelle Hartigan is a CPA-qualified tax accountant with over a decade of experience in Australian personal taxation and payroll. She founded PAYG Calculator Australia to make tax withholding easy for every Australian worker to understand.

CPABCom (Accounting)
Published: 16 June 2026 · Updated: 3 July 2026