Short answer first: if you play casino games for fun in Austria, your winnings are generally not taxed. The gambling levy sits with the operator, and at 45% of gross gaming revenue for online casino, it’s a heavy one. That’s the headline every Austrian comparison site carries. The detail behind it is thinner than the confident tone suggests, though: the sources are mostly secondary, professional players are a grey zone, and winnings from an operator without an Austrian concession carry a legal wrinkle of their own. Here’s what the law says, what it means for your balance, and what we could not pin down.
- Private players: winnings generally not taxed, per Austrian secondary sources.
- Operators pay: 45% of annual gross gaming revenue for online casino, under § 57 (2) GSpG.
- Foreign casinos owe it too: the reform makes back taxes a licence condition.
- Grey zones: professional play, and winnings from a void contract.
The short answer for private players
Austrian comparison sites and poker guides agree: private players generally do not pay tax on casino winnings. The reasoning is structural. The GSpG taxes the game at the operator’s end, through a levy on stakes or on gross gaming revenue, rather than taxing the player’s win as income.
That holds for the land-based casinos run by Casinos Austria, for win2day, and in the sources we read, for offshore casinos too. A €500 win on a slot is simply €500 in your account. There is no withholding at the casino and no line to fill in for a one-off win.
Two caveats keep this from being the whole story. The sources are secondary: we read it on Austrian affiliate and poker sites, not on a Ministry of Finance or tax office page. And the same sources note that professional players may be assessed differently, which we come back to below.
Where the tax lands instead: operators
The operator side is set out in § 57 GSpG, and it’s precise:
- § 57 (1): the general rule is a levy of 17.5% of stakes.
- § 57 (2): for electronic lotteries played from Austria, which covers online casino, the levy is 45% of the annual gross gaming revenue. Gross gaming revenue means stakes minus winnings paid out.
The tax offices collect it. The consolidated text of the GSpG is on the federal legal information system, RIS.
🧮 What 45% of revenue means
An illustrative example, with round numbers that belong to no real casino. Say players in Austria stake €1,000,000 at an online casino in a year, and the casino pays out €960,000 in winnings, a 96% return. Gross gaming revenue is the difference:
- Stakes €1,000,000 minus winnings €960,000 = €40,000 gross gaming revenue
- 45% of €40,000 = €18,000 levy
The levy comes out of the house’s margin, not out of any player’s win. It also explains a pattern you see in cashiers and bonus terms: the house keeps a modest slice of everything staked, and a large share of that slice goes to tax. Your share of the maths sits on the other side. At a 96% return, every €100 you bet costs about €4 on average over time, and a bonus with 40x wagering on €100 means €4,000 in bets, or about €160 in expected cost. Run any offer through the wagering calculator before you treat a bonus as value.
Offshore casinos and back taxes
The levy is tied to games played from Austria, not to whether the operator holds an Austrian concession. Unlicensed operators owe it too. That matters because of the reform bill.
As drafted, a former unlicensed operator only qualifies for a licence under the new law if it has paid all non-time-barred Austrian gambling tax, paid every final Austrian court judgment won by players, and stopped its Austrian offer from 1 January 2027. The Ministry’s press release frames this as cleaning up the grey market before new licences start, at the earliest on 1 October 2027. Our Austrian online casino law guide covers the bill step by step.
For you as a player, nothing in that changes the position on your winnings. It does mean some foreign casinos are likely to leave Austria around the deadline, which is a reason to keep your verification up to date and not leave large balances sitting in an account.
Professional players: the exception
The one clear caveat in the sources is professional play. Austrian guides say professional players may be assessed differently from private players, which in practice means winnings could be treated as income if gambling is your trade.
We found no primary source that sets the line between a keen recreational player and a professional, and no Austrian guidance we could cite on how such income is calculated. If you play poker or casino games as a main source of income, this is a question for a tax adviser, not for a comparison site. Everyone else can read the general rule as written.
Winnings and the void-contract logic
Here is the wrinkle that is specific to Austria. Austrian courts treat a gambling contract with an operator that has no Austrian concession as void. That logic is what lets players reclaim losses, and it cuts both ways.
- The Supreme Court (OGH) ordered an unlicensed operator to repay a player’s net loss of €39,381.40, in a decision of 23 September 2025 reported by a law firm.
- The same court ordered an Austrian player to repay €7,152.71 in winnings to an unlicensed sports betting operator, on the same reasoning.
None of this is a tax issue as such. It belongs here because the question behind “is my win taxed?” is usually “is my win mine?”, and the honest answer for offshore play has that extra clause.
Keep your records anyway
No tax return line for a one-off win doesn’t mean no paperwork. Three habits help in every scenario, from a tax question to a dispute:
- Download cashier statements for deposits and withdrawals, with dates and methods. The OGH accepted a netted statement of transactions as evidence in the loss case above.
- Keep bonus terms as they stood when you claimed. Screenshots of the wagering, max bet and expiry save arguments later.
- Note big wins and large transfers to your bank. A bank may ask where a large payment came from, and a statement answers that in one step.
E-wallets and crypto add a step: keep the wallet history as well as the casino’s, since the casino only shows its own side. That goes double at the crypto casinos on our Austria list, where a payout lands in a wallet rather than at your bank.
What we could not confirm
We say plainly where the sources stop:
- Player tax position: from Austrian secondary sources only, not read on a tax authority page.
- Professional play: no primary source on where the line is drawn.
- Limitation periods for loss claims: one law firm describes three years from knowledge and an outer limit of up to 30 years, without citing a statute.
- The reform: not passed as of 3 November 2026, and the final text may change.
If any of these points decides something for you, ask a tax adviser or an Austrian lawyer.
For players in Austria
The practical picture: as a private player you generally keep what you win, the operator pays the levy, and the legal question mark over offshore play sits with the contract, not with tax. Compare offers on what they cost to clear, not on the headline: our Austria welcome bonus page and Austrian casino list show the numbers, and the 20Bet review and Slotrave review go deeper on two brands.
If gambling stops being fun, the Glücksspielsucht hotline of the Medical University of Vienna is free on 0800 20 5242, Spielsuchthilfe offers free counselling on 01 544 13 57, and the Ministry keeps a directory of help services by federal state. Our responsible gambling page has limits and self-exclusion tools.
FAQ
Do I pay tax on online casino winnings in Austria?
As a private player, generally no. Austrian sources describe winnings as generally not taxed for private players, because the GSpG puts the gambling levy on the operator. We found this in secondary sources only, not on a tax authority page, so treat it as general information, not tax advice.
Who pays the gambling tax in Austria?
The operator. Under § 57 GSpG the general rule is 17.5% of stakes, and electronic lotteries played from Austria, which covers online casino, carry 45% of the operator's annual gross gaming revenue: stakes minus winnings paid out.
Do foreign online casinos owe Austrian gambling tax?
Yes. The levy applies to games played from Austria whether or not the operator holds an Austrian concession. The reform bill makes paying all outstanding Austrian gambling tax a condition for a former unlicensed operator to get a licence later.
Are professional gamblers taxed differently in Austria?
They may be. Austrian sources say professional players may be assessed differently from private players. We found no primary source that sets out when play counts as professional, so anyone who gambles as a main activity should ask a tax adviser.
Can a casino take my winnings back?
It has happened. The Austrian Supreme Court ordered a player to repay €7,152.71 in winnings to an unlicensed sports betting operator, on the logic that a contract with an operator without an Austrian concession is void. It is the same logic players use to reclaim losses.
