The world of crypto coins<\/a> has experienced explosive growth in Belgium and Flanders in recent years. According to recent figures from the European Central Bank<\/a> about 12% of the Belgian population now owns crypto currencies such as Bitcoin, Ethereum or other altcoins. This digital revolution not only brings new investment opportunities, but also raises important tax questions for Belgian taxpayers.<\/p>\n\n\n\n As a law firm specializing in crypto, we have noticed that clients increasingly have questions about the tax implications of their crypto investments. Below, we provide a comprehensive overview of the current tax framework for private investors in cryptocurrencies, including the impact of the new capital gains tax that has been in effect since January 1, 2026.<\/p>\n\n\n\n Crypto currencies are digital currencies that use blockchain technology to enable secure and direct transactions between users, without the involvement of traditional financial institutions. Bitcoin, launched in 2009, was the first crypto currency, but thousands of different digital currencies now exist, each with its own features and applications.<\/p>\n\n\n\n The decentralized nature of cryptocurrencies makes them attractive to investors looking to diversify their portfolios. At the same time, this new asset class poses particular tax challenges, especially since Belgium did not have specific legislation for the taxation of cryptocurrencies for a long time.<\/p>\n\n\n\n Since January 1, 2026, the landscape has changed significantly with the introduction of the general capital gains tax. However, the nature of your activities remains decisive for the tax classification. The Belgian tax authorities and the FPS Finance assess each situation individually, taking various factors into account.<\/p>\n\n\n\n Income from crypto currencies can be qualified in different ways under the Belgian tax system:<\/p>\n\n\n\n The tax authorities use different criteria to determine how profits from crypto currencies are taxed:<\/p>\n\n\n\n Please note: risk of \u2018contamination\u2019 of your portfolio.<\/strong> Recent decisions by the Office for Advance Tax Rulings<\/a> take a strict stance. If you employ a mixed strategy (for example, one currency \u2018buy-and-hold\u2019 and other currencies for active trading), you run the risk that the tax authorities will consider your entire portfolio to be speculative. In a 2024 ruling, the Office for Advance Tax Rulings ruled that the investment strategy is assessed on the entire portfolio and not per coin. As a result, a safe \u2018prudent investor\u2019 investment can suddenly be \u2018contaminated\u2019 by your other activities and taxed at 33% instead of 10%. The Minister of Finance confirmed this strict view in a parliamentary response in the fall of 2025.<\/p>\n\n\n\n The Office for Advance Tax Rulings uses a specific questionnaire with 17 questions to determine how capital gains on cryptocurrencies should be treated for tax purposes. This questionnaire is available on thir website via this direct link: Cryptocurrency Questionnaire<\/a>. The questions cover issues such as the origin of the crypto coins, the size of the investment in relation to your total assets, your trading pattern (active or passive), and your investment term. This questionnaire is an essential guide in assessing your own situation.<\/p>\n\n\n\n A fundamental change in taxation is the general capital gains tax that came into effect on January 1, 2026. A general capital gains tax of 10% now applies to financial assets in Belgium, including cryptocurrencies such as Bitcoin and Ethereum.<\/p>\n\n\n\n This new tax applies to all crypto gains in Flanders, Wallonia, and Brussels, unless they fall under a professional status or speculative management (in which case they are taxed more heavily). This tax reform has put an end to the situation in which capital gains on crypto coins remained untaxed under the principle of \u201cnormal management of private assets\u201d.<\/p>\n\n\n\n In addition to the capital gains tax, there will be stricter controls on crypto transactions:<\/p>\n\n\n\n Mining<\/strong> is the process of creating new crypto currencies by performing complex mathematical calculations. The tax authorities usually consider income from mining as professional income, except in exceptional situations (for example, a student doing mining on a small scale).<\/p>\n\n\n\n Staking<\/strong> is a process by which crypto owners \"stake\" their coins to support the network and receive rewards for doing so. Staking rewards are often compared to interest, although this is theoretically debatable. In practice, it is recommended that this income be declared as interest (movable income) in personal income tax returns.<\/p>\n\n\n\n Airdrops<\/strong> (free distribution of new tokens) and forks<\/strong> (splitting a blockchain where holders automatically receive new tokens) are complex situations from a tax perspective. The tax treatment of these is not yet defined by regulation or case law, but these \"free\" tokens could potentially be considered taxable income.<\/p>\n\n\n\n A key question is whether a crypto account (for example, with platforms such as Binance<\/a>, Squatting<\/a> or Coinbase<\/a>) must be declared as a foreign account. The current interpretation is that crypto wallets and accounts at foreign platforms must be declared:<\/p>\n\n\n\n Failure to comply with this reporting requirement can result in fines and increased investigation deadlines by the tax authorities.<\/p>\n\n\n\nWhat are crypto currencies?<\/h2>\n\n\n\n
The current tax framework in Belgium<\/h2>\n\n\n\n
Tax qualification of crypto income<\/h3>\n\n\n\n
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This was previously the \u2018exempt\u2019 category (0%), but this has changed since January 1, 2026. When the possession and sale of cryptocurrencies is considered part of the normal management of private assets as a \u2018prudent manager\u2019, the realized capital gains are subject to a flat tax of 10% (albeit with an exemption of \u20ac10,000). This marks the end of the era of complete tax exemption.<\/li>\n\n\n\n
When cryptocurrency transactions fall outside the normal management of private wealth and are considered speculative, capital gains are taxed as miscellaneous income at a rate of 33%, plus municipal tax. This often applies to frequent traders in Bitcoin or altcoins. <\/li>\n\n\n\n
If your cryptocurrency activities are considered a professional occupation, income is taxed at the progressive personal income tax rates (up to 50%), plus social security contributions. This is often the case with day trading or professional mining activities.<\/li>\n\n\n\n
Certain income from crypto activities, such as staking or lending, can be considered as moveable income and is then taxed at 30% withholding tax. This is similar to the tax on traditional interest or dividends.<\/li>\n<\/ol>\n\n\n\nCriteria for tax assessment<\/h3>\n\n\n\n
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The capital gains tax since January 1, 2026<\/h2>\n\n\n\n
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Specific tax treatment of crypto activities<\/h2>\n\n\n\n
Mining and Strike<\/h3>\n\n\n\n
Airdrops and Forks<\/h3>\n\n\n\n
Reporting obligations and international data sharing<\/h2>\n\n\n\n
Reporting requirement for foreign accounts<\/h3>\n\n\n\n
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DAC8: European data exchange for crypto assets<\/h3>\n\n\n\n