Question 1

How much do I lose going part-time in Australia?

Accepted Answer

It depends on your current salary and how many days you reduce to. Going from 5 days to 4 days typically costs around 17-20% of your take-home pay after tax, because your effective tax rate also drops when your income falls. This calculator shows you the exact dollar impact for your salary.

Question 2

What is the take-home pay for a 4-day week in Australia?

Accepted Answer

A 4-day week typically pays 80% of your full-time gross salary. However your take-home pay reduction is smaller than 20% because you also pay less income tax on the lower income. Use this calculator to see your exact take-home pay for a 4-day week based on your current salary.

Question 3

Does going part-time affect Family Tax Benefit?

Accepted Answer

Yes — reducing your working hours lowers your family income, which can increase your Family Tax Benefit Part A and Part B entitlements. This calculator estimates both your current and proposed FTB so you can see the full financial impact of going part-time.

Question 4

How much does going part-time save on childcare?

Accepted Answer

Working one fewer day per week typically means one fewer day of childcare, saving between $6,000 and $12,000 per year depending on your daily fee and Child Care Subsidy rate. This calculator lets you enter your childcare costs to see the real net cost of going part-time.

Question 5

What is a 9-day fortnight and how does it affect pay?

Accepted Answer

A 9-day fortnight means you work 9 days over two weeks instead of 10, taking every second Friday off. Your salary is typically 90% of full-time pay. This calculator includes a 9-day fortnight preset so you can instantly see your new take-home pay.

Question 6

Does this calculator work for US families going part-time?

Accepted Answer

Yes. Switch to United States at the top and select your state. The calculator applies 2026 federal income tax brackets, state income tax rates, Social Security and Medicare, and the Child Tax Credit. Results show the impact of any part-time schedule on your US take-home pay.