Knowing how your casino winnings are taxed is part of playing responsibly https://casoo.pt/legal-and-affiliates/. At Casoo Casino, we wish to offer you clear, accurate tax information before you make a bet. We hold a recognised international licence and serve players in Portugal in full compliance with the applicable rules. This page addresses the tax obligations that might come from your activity on our platform—for both players and affiliates. We’ll walk you through Portugal’s tax rules, your reporting duties, and how Casoo Casino assists you in remaining compliant. Our aim is simple: you enjoy the games, and you are fully aware of what your fiscal responsibilities are, with no unnecessary stress.
Useful Tips for Filing Your Tax Return
When tax season opens in April, download your full transaction history for the previous year. Ensure that it contains all deposits, bonuses, wagers, and withdrawals. Compute your net gain using the annual method. In the IRS portal, go to Annex G and enter the net gain in the field for foreign gambling income; the system charges the 28% rate. If you have no gain, bypass this section but retain your records. Notify our support team right away if you spot any discrepancies, and we’ll furnish corrected data.
For affiliate income, utilize Annex B (individual) or Annex C (company). Declare gross commissions and subtract eligible expenses. If you’re VAT-registered, submit the periodic VAT return even if no VAT is due. Set calendar reminders for deadlines (monthly VAT and the annual IRS deadline at the end of June) to prevent fines. We can’t file for you, but bfmtv.com we give the data you need to fill out returns accurately and on time.

Transnational Considerations and Taxation in Two Countries
Since Casoo Casino is licensed in Curaçao and you’re a Portuguese tax resident, double taxation isn’t an issue. Portugal’s tax treaty with the Netherlands includes Curaçao, so gambling winnings are taxable only in Portugal. We do not deduct any Curaçao tax. Affiliate commissions are also taxed exclusively in Portugal. However, if you obtain commissions into a foreign bank account or e-wallet, you need to report that account on your IRS return. Not disclosing it can cause severe penalties. This setup eradicates any risk of double taxation and eases your obligations.
How to Calculate Your Assessable Casino Income
Determining your taxable income is simple. Compile all deposit records and overall wagers for the tax year (1 January to 31 December). Total all prizes you withdrew or that remain as a withdrawable balance. Net gain = prizes minus wagers. If the result is above zero, apply the 28% rate. If it’s below zero, no tax is owed, but keep your records anyway. Don’t compute per session; the annual aggregation offsets losing days against winning ones, which often operates in your favour. Remember to incorporate all converted bonuses as prizes, because the Tax Authority considers bonus money converted to cash as part of your winnings.
For example, assume you deposit €5,000, wager €12,000, and collect €14,000 in prizes. Your net gain is €2,000, and the tax due is €560. Be sure to incorporate all bonuses that have been converted into withdrawable cash, because the Tax Authority considers them as prizes. Our bonus history displays exactly how much was awarded and converted, which aids you assemble complete figures. Utilize that data to verify your calculations are precise and you report the correct net gain on your return.

Documentation Best Practices for Portuguese Players
Monthly Data Export and Review
We suggest downloading your Casoo Casino transaction history at the end of each month and keeping the files in a separate folder on your computer or cloud storage. The export contains date, time, transaction type, amount, and resulting balance, so you have a full audit trail. In addition to the casino records, keep copies of your bank statements or e-wallet statements showing deposits to and withdrawals from your casino account. These external records back up the casino data and give you an extra layer of proof that your reported figures are accurate. If you use multiple payment methods, gather all statements in one place so nothing gets ignored.
We also suggest creating a simple spreadsheet that outlines your annual activity. Include columns for total deposits, total wagers, total prizes, and the calculated net gain. Update it monthly so you’re not rushing to reconstruct a full year of data at the last minute. If you’re in our affiliate programme, keep a individual ledger for commission income—date each payment was received, gross amount, and any expenses you plan to deduct. Good record-keeping keeps you tax-compliant and helps you evaluate your playing patterns and affiliate performance, contributing to smarter decisions and better bankroll management. Our support team is always available to help you find specific transactions if you run into trouble with the export function.
Partnership Program: Regulatory and Tax Considerations
Before you join our affiliate programme, ensure you comprehend the legal and tax implications. You will enter a contractual relationship regulated by our terms and conditions, and your promotional activities must adhere to Portuguese advertising laws—including responsible gambling messaging and the ban on targeting minors. We offer approved marketing materials, but you need to use them in a way that adheres to local regulations. On the tax side, all commission income must be declared to the Portuguese Tax Authority, and you might need to register as a self-employed professional before you get your first payment.
The tax treatment is determined by whether you act as an individual or through a legal entity. For individuals, the income falls under Category B of the IRS. You may choose between the simplified regime (where only 75% of gross commissions are taxable, with the rest treated as presumed expenses) and the organised accounting regime, which lets you deduct actual costs like hosting, advertising, and software. If your expenses are high, organised accounting may work out better. We recommend running a projection with a tax advisor to see which regime lowers your overall tax burden. Register early and issue invoices as required to stay compliant.
Withholding Tax and Player Reporting Duties
A lot of players think the operator deducts automatically tax for them. At Casoo Casino, we don’t apply withholding tax to withdrawals. The Portuguese tax system assigns the responsibility firmly on you to report gambling income. Every year, when you complete your annual IRS declaration, you need to include your net casino winnings in the proper annex. The relevant annex for gambling income is Annex G, where you declare capital gains and other investment income, but winnings from foreign operators go under a dedicated code. We recommend you to review the latest IRS instructions or engage a tax professional to make sure you use the correct field, because codes change between tax years.
Failing to declare taxable gambling income can result in penalties, interest on unpaid tax, and in serious cases, criminal proceedings for tax evasion. The Portuguese Tax Authority has broadened its data-sharing agreements with international financial institutions and payment processors, so large or frequent casino transactions are increasingly visible than ever. If you play only now and then, we encourage you to keep accurate records and provide a truthful return. The 28% special rate is applied to the net gain. If your total stakes exceed your total prizes, you have no tax liability, but you still need to be able to show that if asked. Our platform provides a clear, itemised transaction history you can export anytime.
Authorisation and Supervisory Framework at Casoo Casino
Casoo Casino operates under a remote gambling licence from the Government of Curaçao, a territory known for strong regulatory standards. Curaçao doesn’t happen to be an EU member, but the licence allows us to serve players in Portugal under the free movement of services within the European digital single market, as long as we comply with local consumer protection and anti-money laundering rules. Independent testing agencies review our operations regularly to check game fairness, random number generator integrity, and the security of player funds. We also implement strict know-your-customer and anti-money laundering protocols that correspond to Portuguese legal requirements for financial transparency.
Since our licence is not from the Portuguese gambling regulator (SRIJ), the tax handling of your winnings adheres to the rules for foreign-licensed operators. The Portuguese tax code clearly covers winnings from EU and EEA-licensed operators, and the Curaçao licence fits under international agreements Portugal respects. Every player can access a full transaction history (deposits, bonuses, wagers, and withdrawals) right from their account dashboard. That data is vital for filling in the required annexes on your IRS declaration. We urge you to download your statements regularly and store them safely. They’re your primary proof of gambling activity for tax purposes.
Levy on Associate Commissions from Casoo Casino
If you sign up for the Casoo Casino affiliate programme, the income you generate from recommending players is classified as professional or occupational income under Portuguese tax law. Depending on how you structure your activity, you could be required to register as a self-employed worker with the Portuguese Tax Authority and send out electronic invoices for the commissions you get. The tax rate on affiliate earnings adheres to the progressive IRS brackets if you are an individual, or the corporate income tax rate if you operate through a company. You may also have to charge VAT on your services if your annual turnover surpasses the exemption threshold, right now €14,500 for 2024 (subject to annual updates).
We remit affiliate commissions monthly in euros through several protected methods, and we don’t withhold any Portuguese tax from your payments. You’ll get a dedicated dashboard to track referred players, earnings, and payment history. We suggest consulting a qualified accountant or tax advisor in Portugal to find the most efficient legal structure. Many partners opt for the simplified regime, where only a percentage of gross income is taxable. Others create a limited company to capitalize on lower corporate rates and broader expense deductions. Your own circumstances will dictate the best route, so professional advice is essential.
How Portugal Levies Gambling Winnings
Portugal imposes tax on online casino winnings from operators licensed in the EU or EEA under the Personal Income Tax Code (Código do IRS), treating them as “jogos de fortuna ou azar”. The rate is a flat 28% on your net annual gain—total prizes collected minus total amounts wagered during the tax year. Casoo Casino does not deduct any tax from your withdrawals or account balance. The duty for calculating, declaring, and paying the tax is entirely yours. We advise you keep a detailed log of all deposits, wagers, and withdrawals throughout the year. The Portuguese Tax Authority may ask for supporting documents if you’re ever audited.
Getting organised early saves time and reduces mistakes when you file your annual return. The tax isn’t calculated per session or spin. Instead, the annual aggregation method offsets losing days against winning ones, which often works in your favour. This tax only applies to net gains, so if your total stakes exceed your total prizes, you are not liable for that year. Still, keep all records so you can show your position if asked. Our platform gives you a clear, itemised transaction history you can export anytime—exactly the documentation you need to back up your declaration.
Casoo Casino’s Pledge to Safe and Compliant Play
We provide tools to support your money management: deposit limits, loss caps, and session notifications. These assist you control spending and make tax filings simpler. We detail bonus terms clearly so you steer clear of reporting errors. Our customer support team is equipped to answer your questions without fostering risky behaviour. We run a rigorous anti-money laundering programme that includes identity checks and transaction monitoring, aligned with FATF standards and Portuguese law. External auditors evaluate our operations regularly, checking money protection and fair gambling.
Common Mistakes to Avoid When Filing Casino Income
Many players make preventable mistakes when filing online casino income. The most typical ones are:
- Not reporting small net gains, assuming only large amounts count.
- Reporting gross withdrawals as income without removing total wagers.
- Considering deposits as taxable income (they aren’t).
- Forgetting to include converted bonuses as part of your prizes.
- Mixing personal and gambling transactions in the same account without a clear separation.
Using a dedicated e-wallet or a separate bank account for all casino transactions gives you a clean paper trail and cuts down audit stress. If you’re ever in doubt about a specific transaction, consult a Portuguese tax professional who knows the gambling sector. The cost of professional advice is tiny compared to the potential penalties for filing incorrectly.
Indirect Tax and Further Taxes on Services on Gambling Services
Under EU VAT rules, gambling services are exempt, so you pay no VAT on stakes or account fees. The only tax on winnings is the particular 28% IRS tax. For affiliates, VAT may apply if you are registered and your turnover exceeds the €14,500 threshold. In that case, you are required to charge 23% VAT on commission invoices. Because Casoo Casino is outside the EU, the reverse charge mechanism may enable you issue invoices without VAT if you record the business-to-business supply. We provide our company details for compliant invoicing. Get professional advice to handle this correctly.
Amendments to Portuguese Tax Law and Their Impact
Tax legislation changes, and the Portuguese government has debated adjusting how online gambling is taxed as the market grows. At the time of writing, no definitive changes have been enacted, but we monitor legislative developments closely and will update this page if new rules come into force. We encourage you to check the Portuguese Tax Authority’s official website or subscribe to our newsletter for announcements. One area under discussion is a potential centralised reporting system that would require foreign operators to share player data directly with the authorities. If that happens, accurate self-reporting would become even more critical. Casoo Casino is ready to comply with any lawful data-sharing obligations and will tell you in advance about any changes to our reporting practices. Your diligence in meeting tax obligations supports the integrity of the online gaming industry and helps keep a positive regulatory environment for everyone involved.