Pro Rata Salary Calculator
Use this pro rata salary calculator to turn an advertised full-time salary into what you are paid for your hours. A full-time week is 38 hours under the National Employment Standards, so three 7.6-hour days are 60% of the salary. The calculator then takes out 2026-27 tax, Medicare and HELP.
| 2026-27 | Gross | Tax and Medicare | Take-home |
|---|---|---|---|
| Year | $48,000 | $5,600 | $42,400 |
| Month | $4,000 | $467 | $3,533 |
| Fortnight | $1,846 | $215 | $1,631 |
| Week | $923 | $108 | $815 |
Part-time salary calculator: days or hours
Enter the days you work and the hours in each. Here is an $80,000 full-time salary worked over one to five standard 7.6-hour days.
| Days a week | Share of full time | Pro rata salary | Take-home a fortnight |
|---|---|---|---|
| 1 | 20% | $16,000 | $615 |
| 2 | 40% | $32,000 | $1,163 |
| 3 | 60% | $48,000 | $1,631 |
| 4 | 80% | $64,000 | $2,040 |
| 5 | 100% | $80,000 | $2,457 |
How to calculate pro rata salary
Full-time salary x your weekly hours / full-time weekly hours = pro rata salary.
Use your own workplace's full-time hours. A $90,000 role in a 37.5-hour workplace, worked for 30 hours, pays $72,000. To go from an hourly rate instead, use the hourly to salary calculator.
Pro rata for part of the year
Starting or leaving mid-year scales the salary again by the days you are employed. The calculator uses calendar days out of 365: a $100,000 salary for 146 days is $40,000. Some employers and agreements count working days instead, so check your payslip if the figures differ by a little.
Why part-time pay carries a lower average tax rate
Tax is progressive, so a smaller salary keeps more of each dollar. Full time on $80,000, tax and Medicare take 20.2%. Three days on $48,000 takes 11.7%. Check any salary in the PAYG calculator, or see the full breakdown in the take-home pay calculator.
Frequently asked questions
How do you calculate a pro rata salary?
Is a full-time week always 38 hours?
Does super go down on a part-time salary?
Can I claim the tax-free threshold on a part-time job?
Sources
Each source below was retrieved on 6 October 2026 and returned a live page.
- Fair Work Ombudsman: Maximum weekly hours fact sheet (content updated 16 January 2026). The 38-hour full-time week and the award or agreement exception.
- ATO: Tax rates: Australian residents. The 2026-27 resident scale used for take-home pay.
- ATO: Super guarantee (QC18123, last updated 17 April 2026). The 12% rate on qualifying earnings.