Are Winnings From Offshore Casinos Taxable in Australia?

The ATO's General Position on Gambling Winnings

The Australian Taxation Office (ATO) takes the position that gambling winnings are generally not taxable income for recreational players. The ATO's published guidance states that if gambling is a hobby or recreational activity, any winnings are not assessable income and any losses are not deductible. This applies whether the gambling takes place at a local venue, a licensed Australian wagering operator, or an offshore online casino.

The ATO's reasoning is that a recreational gambler does not carry on a business. Winnings are treated as a windfall rather than the product of a systematic, income-producing activity. This position is consistent with long-standing Australian tax law and has been confirmed in ATO guidance documents.

Importantly, the ATO does not draw a formal distinction between winnings from a domestic casino and winnings from an offshore casino when applying this general rule. The source of the winnings — whether a local poker machine or an offshore online platform — does not by itself change the recreational-versus-business analysis.

Does the ATO Treat Offshore Casino Winnings Differently?

Based on ATO guidance verified in October 2026, the ATO does not apply a separate tax category specifically for offshore casino winnings. The same recreational-versus-business test applies regardless of where the casino is located.

However, there are two practical differences that arise when winnings come from an offshore platform.

First, foreign currency. If an offshore casino holds your balance in US dollars, euros, or another currency, and you convert that balance to Australian dollars, the ATO may treat any gain from the currency conversion as a taxable foreign currency gain under the foreign currency rules in the Income Tax Assessment Act 1997. This is separate from the gambling winnings question. A gain arises if the AUD value of the foreign currency at the time you convert it is higher than the AUD value when you first acquired it. The ATO's foreign currency guidance explains when these rules apply to individuals.

Second, record keeping. Because offshore operators are not subject to Australian reporting obligations, the ATO has no automatic visibility of your account activity. If you are ever asked to substantiate your tax position, you would need to produce your own records. This is a practical consideration, not a separate tax rule.

When Could Gambling Be Treated as a Business?

The ATO acknowledges that in some circumstances a person's gambling activity can constitute carrying on a business, in which case winnings are assessable income and losses may be deductible. The ATO lists several indicators it considers when making this determination. No single indicator is decisive; the ATO looks at the overall picture.

Indicators the ATO considers include: whether the activity is carried on in a businesslike and organised manner; whether there is a reasonable expectation of profit; whether the activity is repeated and regular; whether it is of a significant commercial size; and whether the person relies on the activity as their main source of income.

A person who plays casino games occasionally, even at high stakes, is unlikely to meet these indicators. A person who plays poker professionally, maintains detailed records, studies strategy systematically, and derives their primary income from winnings is more likely to be assessed as carrying on a business — though the ATO evaluates each case on its facts.

The ATO has published a decision tool and guidance specifically on this question. If you believe your gambling activity might meet the business indicators, consulting a registered tax agent before lodging your return is strongly advisable, because the consequences of misclassification run in both directions: you may be paying tax you do not owe, or omitting income you do.

Foreign Currency and Offshore Casino Accounts: A Practical Example

The following is a hypothetical example to illustrate the foreign currency point. It is not a tax ruling or a guarantee of how the ATO would treat any specific situation.

Hypothetical example: Suppose you deposit A$500 into an offshore casino that holds balances in US dollars. At the time of deposit, A$500 converts to approximately US$320. You win, and your balance grows to US$600. You then withdraw US$600 back to AUD. At the time of withdrawal, US$600 converts to A$950.

Under the ATO's general approach, the gambling winnings component (the growth from US$320 to US$600) would not be assessable income if you are a recreational player. However, the ATO's foreign currency rules could potentially apply to any gain that arises purely from the movement in the AUD/USD exchange rate between the time you acquired the foreign currency and the time you disposed of it. In practice, the ATO provides a de minimis rule: individuals are not required to account for foreign currency gains or losses if the total foreign currency gains and losses for the income year are A$200 or less. Above that threshold, the rules may apply.

This is a genuinely complex area where the interaction between gambling tax treatment and foreign currency rules is not always straightforward. A registered tax agent can assess your specific circumstances.

Record Keeping for Offshore Casino Activity

Even if your winnings are not taxable, keeping records of your offshore casino activity is a sensible precaution. The ATO can ask you to substantiate your tax position, and if you cannot produce records, it may make its own assessment.

Useful records to keep include: screenshots or exports of your transaction history from the casino's cashier; records of deposits and withdrawals in both the foreign currency and the AUD equivalent at the time of each transaction; any correspondence with the casino about your account; and records of any currency conversion rates used.

Offshore casinos are not required to report to the ATO or to issue payment summaries. This means the burden of documentation falls entirely on you. Some offshore platforms allow you to export a full transaction history from your account settings; it is worth doing this periodically rather than waiting until you need it, because access to your account history may be lost if the operator closes or blocks your account.

If you use cryptocurrency to fund an offshore casino account, additional record-keeping obligations apply. The ATO treats cryptocurrency as a capital gains tax asset, and each conversion — from AUD to crypto, from crypto to a casino balance, and back — may be a taxable event. This is a separate and more complex area; the ATO's cryptocurrency guidance is the starting point.

1. Export your full transaction history from the casino's cashier section regularly, not just when you plan to withdraw.
2. Record the AUD equivalent of each deposit and withdrawal at the time it occurred, using a reliable exchange rate source such as the Reserve Bank of Australia's published rates.
3. Keep records of any currency conversion fees charged by your bank, payment provider or the casino.
4. If you use cryptocurrency, record the AUD value of each crypto transaction at the time it occurred.
5. Store records for at least five years from the date you lodge the relevant tax return, consistent with the ATO's general record-keeping guidance.

Disclaimer and When to Consult a Tax Agent

This page is an editorial guide based on publicly available ATO materials. It is not legal or tax advice, and it does not constitute a ruling or opinion from the ATO. Tax outcomes depend on individual circumstances, and the ATO's published guidance does not cover every possible situation.

You should consult a registered tax agent or tax lawyer if: you gamble regularly and derive a significant portion of your income from gambling; you hold large balances in foreign currencies through offshore casino accounts; you use cryptocurrency to fund gambling activity; you have received a query or audit notice from the ATO relating to gambling income; or you are simply unsure whether your activity crosses the line from recreational gambling to a business.

A registered tax agent is bound by the Tax Practitioners Board's code of professional conduct and can provide advice that is specific to your situation. The Tax Practitioners Board's register of registered agents is publicly searchable at tpb.gov.au.

This page was prepared using ATO materials verified in October 2026. ATO guidance can change; check the ATO website directly for the most current position.