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Being aware of how your casino winnings get taxed is part of playing responsibly. At Casoo Casino, we aim to provide you with clear, accurate tax information prior to placing a wager. We possess a recognised international licence and serve players in Portugal in full compliance with the applicable rules. This page covers the tax obligations that might come from your activity on our platform—be you a player or an affiliate. We’ll walk you through Portugal’s tax rules, your reporting duties, and how Casoo Casino supports your compliance. Our aim is simple: you experience the games, and you know exactly what your fiscal responsibilities are, with no unnecessary stress.
How Portugal Imposes Tax on 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), classifying 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 withhold any tax from your withdrawals or account balance. The obligation for calculating, declaring, and paying the tax is entirely yours. We suggest 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 you time and cuts down on mistakes when you file your annual return. The tax isn’t calculated per session or spin. Instead, the annual aggregation method nets 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.
Essential Guide for Completing Your Tax Return

When tax season begins in April, extract your full transaction history for the previous year. Verify that it covers all deposits, bonuses, wagers, and withdrawals. Compute your net gain using the annual method. In the IRS portal, go to Annex G and insert the net gain in the field for foreign gambling income; the system charges the 28% rate. If you have no gain, skip this section but maintain your records. Contact our support team right away if you detect any discrepancies, and we’ll provide corrected data.
For affiliate income, employ Annex B (individual) or Annex C (company). Record gross commissions and subtract eligible expenses. If you’re VAT-registered, send the periodic VAT return even if no VAT is due. Create 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 we give the data you need to finish returns accurately and on time.
Partnership Program: Regulatory and Fiscal Factors
Prior to joining our affiliate programme, make sure you understand the legal and tax implications. You will enter a contractual relationship regulated by our terms and conditions, and your promotional activities must follow Portuguese advertising laws—including responsible gambling messaging and the ban on targeting minors. We provide approved marketing materials, but you need to use them in a way that respects local regulations. On the tax side, all commission income must be declared to the Portuguese Tax Authority, and you may be required to register as a self-employed professional before you obtain your first payment.
The tax treatment is determined by whether you act as an individual or through a legal entity. For individuals, the income belongs to 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 allows you to deduct actual costs like hosting, advertising, and software. If your expenses are high, organised accounting could be more advantageous. We suggest running a projection with a tax advisor to see which regime cuts your overall tax burden. Register early and issue invoices as required to stay compliant.
Withholding Tax and Player Tax Reporting Requirements
A lot of players think the operator withholds tax for them. At Casoo Casino, we do not apply withholding tax to withdrawals. The Portuguese tax system assigns the responsibility directly on you to report gambling income. Each year, when you complete your annual IRS declaration, you are required to include your net casino winnings in the proper annex. The relevant annex for gambling income is Annex G, where you report capital gains and other investment income, but winnings from foreign operators are placed under a dedicated code. We suggest you to review the latest IRS instructions or consult a tax professional to make sure you use the correct field, because codes may change between tax years.
Neglecting to declare taxable gambling income can lead to penalties, interest on unpaid tax, and in serious cases, criminal proceedings for tax evasion. The Portuguese Tax Authority has expanded its data-sharing agreements with international financial institutions and payment processors, so large or frequent casino transactions are more visible than ever. Even if you play only now and then, we encourage you to keep accurate records and submit a truthful return. The 28% special rate governs the net gain. If your total stakes exceed your total prizes, you face no tax liability, but you must still to be able to show that if asked. Our platform offers a clear, itemised transaction history you can export anytime.
Transnational Considerations and Dual Taxation
Since Casoo Casino is licensed in Curaçao and you’re a Portuguese tax resident, dual taxation isn’t an issue. Portugal’s tax treaty with the Netherlands includes Curaçao, so gambling winnings are liable for tax only in Portugal. We do not deduct any Curaçao tax. Affiliate commissions are also taxed solely in Portugal. However, if you obtain commissions into a foreign bank account or e-wallet, you are required to report that account on your IRS return. Not disclosing it can result in severe penalties. This setup eradicates any risk of double taxation and simplifies your obligations.
Value Added Tax and Other Indirect Taxes on Gaming Services
Under EU VAT rules, gambling services are not subject, so you incur no VAT on stakes or account fees. The only tax on winnings is the particular 28% IRS tax. For affiliates, VAT may be applicable if you are registered and your turnover surpasses 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 allow you send invoices without VAT if you record the business-to-business supply. We offer our company details for compliant invoicing. Get professional advice to handle this correctly.
How to Calculate Your Assessable Casino Income
Determining your taxable income is straightforward. Gather all deposit records and total 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 positive, apply the 28% rate. If it’s negative, no tax is due, but hold onto your records anyway. Don’t compute per session; the annual aggregation offsets losing days against winning ones, which often works in your favour. Remember to include all converted bonuses as prizes, because the Tax Authority considers bonus money converted to cash as part of your winnings.
For example, imagine you deposit €5,000, wager €12,000, and receive €14,000 in prizes. Your net gain is €2,000, and the tax due is €560. Make sure to include all bonuses that have been converted into withdrawable cash, because the Tax Authority treats them as prizes. Our bonus history displays exactly how much was awarded and converted, which aids you put together complete figures. Employ that data to verify your calculations are precise and you declare the correct net gain on your return.
Authorisation and Compliance Framework at Casoo Casino
Casoo Casino operates under a remote gambling permit from the Government of Curaçao, a territory known for strong regulatory standards. Curaçao doesn’t happen to be an EU member, but the licence lets us to accommodate players in Portugal under the free movement of services within the European digital single market, as long as we adhere to 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 protection of player funds. We also implement strict know-your-customer and anti-money laundering protocols that align with Portuguese legal requirements for financial transparency.
Since our authorisation is not from the Portuguese gambling regulator (SRIJ), the tax handling of your winnings follows the rules for foreign-licensed operators. The Portuguese tax code specifically covers winnings from EU and EEA-licensed operators, and the Curaçao authorisation qualifies under international agreements Portugal recognises. Every player can retrieve 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 keep them safely. They’re your primary proof of gambling activity for tax purposes.
Taxation on Affiliate Earnings from Casoo Casino
If you join the Casoo Casino affiliate programme, the earnings you generate from recommending players qualifies as commercial or self-employed income under Portuguese tax law. Based on how you structure your activity, you could need to enrol as a independent worker with the Portuguese Tax Authority and issue electronic invoices for the commissions you collect. The tax rate on affiliate earnings follows the progressive IRS brackets if you are an individual, or the corporate income tax rate if you work through a company. You may also be obliged to charge VAT on your services if your annual turnover goes above the exemption threshold, currently €14,500 for 2024 (subject to annual updates).
We remit affiliate commissions monthly in euros through several protected methods, and we never withhold any Portuguese tax from your payments. You’ll get a dedicated dashboard to track referred players, earnings, and payment history. We advise talking to a qualified accountant or tax advisor in Portugal to determine the most effective legal structure. Many partners go with the simplified regime, where only a percentage of gross income is taxable. Others set up a limited company to take advantage of lower corporate rates and broader expense deductions. Your own circumstances will influence the best route, so professional advice is invaluable.
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 saving the files in a dedicated folder on your computer or cloud storage. The export features date, time, transaction type, amount, and resulting balance, so you have a complete audit trail. In addition to the casino records, keep copies of your bank statements or e-wallet statements indicating deposits to and withdrawals from your casino account. These external records support the casino data and give you an further layer of proof that your reported figures are correct. If you use multiple payment methods, gather all statements in one place so nothing gets ignored.
We also recommend creating a basic spreadsheet that summarizes your annual activity. Include columns for total deposits, total wagers, total prizes, and the calculated net gain. Update it monthly so you’re not struggling 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 ensures you tax-compliant and aids you analyse your playing patterns and affiliate performance, resulting to smarter decisions and better bankroll management. Our support team is always ready to help you find specific transactions if you run into trouble with the export function.
Casoo Casino’s Pledge to Safe and Lawful Play
We offer tools to support your fiscal responsibility: deposit restrictions, loss limits, and session reminders. These assist you manage spending and make tax calculations simpler. We clarify bonus terms clearly so you prevent reporting errors. Our customer support team is prepared to answer your questions without fostering risky behaviour. We run a rigorous anti-money laundering programme that includes identity verification and transaction oversight, aligned with FATF standards and Portuguese law. External auditors review our operations regularly, checking money protection and fair gaming.
Frequent Errors to Prevent When Filing Casino Income
Numerous gamblers make preventable mistakes when declaring online casino income. The most frequent ones are:
- Failing to report small net gains, thinking only large amounts count.
- Listing gross withdrawals as income without removing total wagers.
- Viewing deposits as taxable income (they aren’t).
- Failing to include converted bonuses as part of your prizes.
- Combining personal and gambling transactions in the same account without a clear separation.

Employing a dedicated e-wallet or a separate bank account for all casino transactions provides you with a clean paper trail and reduces audit stress. If you’re ever unsure about a specific transaction, talk to a Portuguese tax professional who is familiar with the gambling sector. The cost of professional advice is tiny compared to the potential penalties for filing incorrectly.
Updates to Portuguese Tax Law and Its Impact
Tax legislation modifications, and the Portuguese government has discussed adjusting how online gambling is taxed as the market grows https://casoo.pt/legal-and-affiliates/. At the time of writing, no definitive changes have been enacted, but we track legislative developments closely and will update this page if new rules come into force. We recommend 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.
