How the Long Service Leave Calculator Works (With a Worked Example)
Estimates long service leave accrued and its value. This guide walks through what each input means, the formula behind the answer and a worked example using typical Australian figures. You can follow along in the free Long Service Leave Calculator.
Why it matters
Australia taxes individuals on a progressive scale, so each extra dollar can be taxed at a different rate from the last. On top of income tax, most residents pay the 2% Medicare levy, and many carry HELP debts that are repaid through the tax system. Employers withhold tax from each pay under PAYG, and the annual tax return squares up the difference.
What you need to enter
The calculator asks for 3 inputs. The table shows each one with the example value used later in this guide.
| Input | Example value |
|---|---|
| Years of service | 10 |
| Weeks accrued per 10 years | 8.67 |
| Weekly pay ($) | 1600 |
The formula
Leave accrued = years ÷ 10 × weeks per 10 years. Rules differ by state: NSW gives 2 months (about 8.67 weeks) after 10 years; some states accrue faster.
Worked example
Entering the example values above gives these results:
| Result | Value |
|---|---|
| Value of leave (gross) | $13,872.00 |
| Leave accrued | 8.67 weeks |
The headline figure is $13,872.00 (value of leave (gross)). Change any input in the calculator and every result updates instantly, so you can test different scenarios side by side.
How the value of leave (gross) changes with years of service
The table below keeps every other input at the example value and moves only “Years of service” up and down by 10% and 20%. It shows how sensitive the value of leave (gross) is to that one figure.
| Years of service | Value of leave (gross) |
|---|---|
| 8 | $11,097.60 |
| 9 | $12,484.80 |
| 10 | $13,872.00 |
| 11 | $15,259.20 |
| 12 | $16,646.40 |
At 8 the result is $11,097.60; at 12 it is $16,646.40. If a small change in this input moves the answer a lot, it is worth double-checking that figure before you rely on the result.
A practical tip
Check your state’s long service leave act for when pro-rata leave is paid out if you resign early.
Keep going
Before relying on the number, read Getting the Most From a Long Service Leave Calculator: Tips and Common Errors. You might also find these guides useful:
- Annual Leave Calculator: Formula, Example and What the Result Means
- How the Income Tax Calculator Works (With a Worked Example)
- Pay Calculator (Take-Home Pay): Formula, Example and What the Result Means
Frequently asked questions
- Are these results exact?
- They are estimates based on standard resident rates. Your actual tax depends on your full circumstances, offsets and any private health insurance position. The ATO’s own tools or a registered tax agent give a definitive answer.
- Do the calculators work for non-residents?
- No. Non-residents have different rates, no tax-free threshold and no Medicare levy. These calculators assume you are an Australian resident for tax purposes.
- When do tax rates change?
- Rates usually change on 1 July, the start of the Australian financial year. Check the ATO website each July for the current figures.
Run your own numbers in the Long Service Leave Calculator.
Open the calculatorGeneral information only. Rates and thresholds change, usually on 1 July. Confirm current figures with the ATO or the relevant authority, and get personal advice for decisions about your situation.