Lottery tax calculator: your take-home depends on two places
Tax on a lottery prize depends on where you live and where the game is run. For Australian residents, lottery prizes are tax-free, though interest the money earns later is taxed as usual.
Why does lottery tax change from one prize to the next?
Because two sets of rules can apply at once: the country you live in, and the country or state that runs the game.
In Australia the answer is short. Lottery prizes are tax-free for Australian residents, and the Australian Taxation Office at ato.gov.au is the primary source for that rule.
What changes is everything the money does next. Interest earned on a prize is income, and it is taxed as usual, the same as interest on any other savings.
Outside Australia, the rules differ by country, and a prize can be affected by the rules where the game is run as well as where you live. We do not restate other countries' rates on this page. Rates change, and a copy goes stale. Our country-by-country rules pages carry each country's position with its source.
That is why a bare number is not enough. A take-home figure is only as good as the two places it assumes, so our after-tax prize calculator works from both before it does any arithmetic.
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Five free tools for the money side of a prize
Each one shows its working, so you can check the arithmetic instead of taking it on trust. None needs an account.
After-tax prize calculator
Works out the take-home amount on a prize from where you live and where the game is run. Start here if you only want the number.
See After-tax prize calculator
Lump sum vs annuity calculator
Compares taking a prize as one payment now against payments over time, so you can see what each choice assumes.
See Lump sum vs annuity calculator
Expected value calculator
Works out the average return per ticket for any jackpot, including tax and the chance of sharing the jackpot with other winners.
Syndicate split calculator
Works out each member's share of a syndicate's cost and any prize, before anyone argues about the decimals.
See Syndicate split calculator
The If you win guide
Sets out the steps to take after a large prize, in the order they matter, with the sources linked so you can check each one.
How to use a lottery tax calculator in five steps
A take-home figure needs the right inputs. Work through them in this order and the arithmetic becomes the easy part.
Name where the game is run
Find the operator and the country or state it runs from. That sets the rules the prize is paid under, before your own country's rules apply.
Name where you live
Your tax residence decides how your own country treats the prize. For Australian residents, lottery prizes are tax-free.
Check how the prize is paid
Some games pay one lump sum, some pay over time, and some let you choose. The game's rules say which, so check them before comparing.
Run the after-tax prize calculator
Enter the prize, where you live and where the game is run. The calculator shows the take-home figure with the working behind it.
Plan for what the money earns next
A tax-free prize can still produce taxable income. In Australia, interest and other earnings on the money are taxed as usual.
Every claim is backed by a calculation shown on the page or a linked primary source; anything that cannot be sourced stays off the site.
Lottery tax questions, answered with the source
Frequently Asked Questions
- Are lottery prizes taxed in Australia?
- Not for Australian residents. Lottery prizes are tax-free, and the Australian Taxation Office at ato.gov.au is the source for that rule. Income you later earn from the money, such as interest, is taxed as usual.
- I live in Australia but won on an overseas game. What applies?
- Two sets of rules can apply: those where the game is run, and those where you live. We do not restate other countries' rates here because they change. Our country-by-country rules pages give each position with its source, and the after-tax prize calculator works from both places.
- Is a lump sum or an annuity better?
- Neither is better in every case, and we do not pick one for you. It depends on what the game offers, how tax treats each payment where you live, and what you would do with the money. The lump sum vs annuity calculator lays both out from your figures.
- Does tax change whether a ticket is worth buying?
- Expected value is the average return per ticket, and it is almost always below the ticket price. A large jackpot can raise it, but tax where it applies and the chance of sharing the jackpot pull it back down. Our expected value calculator includes both.
- Is the calculator's figure tax advice?
- No. It is arithmetic from the rules and figures you give it, with the working shown. For a real win, the tax authority where you live and a licensed adviser have the final word, and our If you win guide is a sensible first read.
- Are the tools free?
- Yes. All 25 tools are free, run in your browser and need no account. There is no paid plan.
- How current is this page?
- We last checked this page in October 2026. Every tax rule we state points to its primary source. If you find one that has changed, tell us and we will check it against the source and fix the page.
Spotted a tax rule that has changed? Tell us.
We check every correction against its primary source and fix the page. Questions about the tools are welcome too.