Introduction
The world of crypto coins has experienced explosive growth in Belgium and Flanders in recent years. According to recent figures from the European Central Bank 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.
As a specialized law firm in tax law, we 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 crypto currencies, including recent developments such as the announced "solidarity contribution" on financial assets.
What are crypto currencies?
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.
The decentralized nature of crypto-currencies makes them attractive to investors looking to diversify their portfolios. At the same time, this new asset class poses particular tax challenges, especially since there is no specific legislation yet in Belgium for the taxation of crypto-currencies.
The current tax framework in Belgium
Unlike some other countries, Belgium has not yet developed specific legislation for the tax treatment of crypto currencies. As a result, income from crypto investments must be fitted into the existing tax system. The Belgian tax authorities and FPS Finance assess each situation individually, taking several factors into account.
Tax qualification of crypto income
Income from crypto currencies can be qualified in different ways under the Belgian tax system:
- Normal management of private assets (0% tax)
This is the most favorable tax classification, with no personal income tax due. When the ownership and sale of crypto currencies is considered part of the normal management of private wealth as a "good family man," any capital gains on crypto investments remain tax-free. - Miscellaneous revenue (33% tax + municipal tax)
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. - Professional income (progressive rates up to 50%)
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. - Movable income (30% withholding tax).
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.
Criteria for tax assessment
The tax authorities use different criteria to determine how profits from crypto currencies are taxed:
- Investment Strategy: A "buy and hold" strategy is more indicative of normal management of private wealth, while frequent trading is more indicative of speculation or professional activity.
- Frequency of transactions: A limited number of trades indicates passive management, while frequent trades may indicate speculative behavior.
- Professional background: If your profession is not related to crypto currencies, this is an indication of normal management.
- Use of own resources: Investments with own funds (without loans) support the argument of normal management.
- Proportion of power: If only a limited percentage of your assets are invested in crypto currencies, this is considered an indication of normal management.
The Office for Advance Tax Rulings (DVB or "Ruling") uses a specific questionnaire with 17 questions to determine how capital gains on crypto currencies should be treated for tax purposes. This questionnaire is available on the DVB's website at this direct link: Cryptocurrency Questionnaire. 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.
Major new development: capital gains tax starting in 2026
An important development in the taxation of crypto currencies is the capital gains tax announced in the federal coalition agreement 2025-2029. From Jan. 1, 2026, a general capital gains tax of 10% will be introduced on financial assets in Belgium, including crypto currencies such as Bitcoin and Ethereum.
This new tax will apply to all crypto profits in Flanders, Wallonia and Brussels, unless they fall under a professional status (where they are taxed as professional income). This tax reform will end the situation where many capital gains on crypto currencies remain untaxed under the principle of "normal management of private wealth."
In addition to the capital gains tax, there will be stricter controls on crypto transactions:
- Crypto accounts should be reported to the Central Contact Point (CAP) of the National Bank of Belgium
- Belgian tax authorities gain more insight into crypto transactions to combat fraud
- Exchange of data between European tax administrations intensified
It is important to note that the exact details of this capital gains tax on crypto-currencies are currently not yet in place. The final modalities and entry into force have yet to be legislated by the Belgian parliament.
Specific tax treatment of crypto activities
Mining and Strike
Mining 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).
Staking 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.
Airdrops and Forks
Airdrops (free distribution of new tokens) and forks (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.
Reporting obligations and international data sharing
Reporting requirement for foreign accounts
A key question is whether a crypto account (for example, with platforms such as Binance, Squatting or Coinbase) must be declared as a foreign account. The current interpretation is that crypto wallets and accounts at foreign platforms must be declared:
- In the annual tax return
- At the Central Contact Point (CAP) of the National Bank of Belgium
Failure to comply with this reporting requirement can result in fines and increased investigation deadlines by the tax authorities.
DAC8: European data exchange for crypto assets
The European Union has now adopted the DAC8 directive which mandates the automated exchange of information on crypto transactions between EU Member States. Starting in 2026, crypto platforms will have to collect and transmit information about their customers and their transactions.
This development will significantly increase the transparency of the crypto market and make it more difficult for taxpayers not to declare crypto income.
Practical tips for crypto investors
Keeping documentation
It is essential to keep accurate records of all your crypto transactions, including:
- Purchase receipts (date, price, platform)
- Sales receipts
- Account statements
- Proof of transaction costs
This documentation is crucial in the event of any questions from the tax authorities and helps in completing your tax return correctly.
Advance tax (ruling) applications
In case of doubt about the tax treatment of your particular situation, you can request an advance tax decision (ruling) from the Office of Advance Tax Rulings. This provides legal certainty about the tax treatment of your crypto investments.
What to do with undeclared crypto income from the past?
Although the previous tax regularization procedure through the Contact Point for Regularizations in Belgium ended on Dec. 31, 2023, there is good news for taxpayers with undeclared crypto income. The coalition agreement of the De Wever I government, presented in February 2025, includes the possibility of a new (fifth) round of tax regularization.
This means that in the near future, taxpayers may again be given the option to declare undeclared income or assets, including crypto currencies, against payment of the tax due plus a penalty rate. The exact modalities and timing of this new regularization procedure have yet to be worked out in legislation.
Pending the concrete implementation of this new regularization option, it is advisable to seek professional tax advice to evaluate your specific situation and determine the best possible approach. A tax lawyer can help you prepare for the upcoming regularization procedure.
Keep in mind that through international data exchange, especially under the DAC8 directive starting in 2026, the tax administration will gain increasing insight into crypto transactions. Acting proactively is therefore often wiser than waiting.
Wealth planning with crypto currencies
Donation of crypto coins
Crypto coins can be the subject of a donation. A notarized donation is taxed at 3% (in direct line or between partners) or 7% (in other cases) in the Flemish Region.
A hand gift or bank gift of crypto coins can be made without gift tax under certain conditions. However, the donor must live for five years after the gift to avoid inheritance tax.
Inheritance and crypto currencies
Inheritance of crypto currencies presents special challenges due to the decentralized and secure nature of the technology. It is essential to take measures so that heirs can access your crypto assets, for example, by:
- Securely storing access data (private keys).
- Documenting your crypto assets
- Including specific instructions in your will
Frequently asked questions (FAQ) about crypto currencies and taxes in Belgium
Do I have to pay taxes on my profits from crypto coins in Belgium?
Yes, profits from crypto currencies may be taxable in Belgium. Depending on your situation, these gains can be taxed as normal management of private wealth (0% tax), miscellaneous income (33% + municipal tax), professional income (progressive rates up to 50%) or movable income (30%). Moreover, from 2026, a general capital gains tax of 10% will apply to crypto profits.
How does the Belgian tax authorities determine whether my crypto profits are taxable?
The FPS Finance assesses each situation individually based on various criteria such as your investment strategy, frequency of transactions, professional background, funds used (own funds or loans) and the proportion of your assets invested in crypto.
Should I report my crypto account as a foreign account?
Yes, crypto accounts with platforms such as Binance, Kraken or Coinbase must be reported as a foreign account in Belgium, both in your annual tax return and at the Central Contact Point (CAP) of the National Bank of Belgium.
What is the announced capital gains tax for crypto currencies?
The federal coalition agreement 2025-2029 announced a general capital gains tax of 10% on financial assets, including crypto currencies. This tax will apply to all crypto profits in Flanders, Wallonia and Brussels, unless they are taxed as professional income.
How are mining and staking income taxed in Belgium?
Mining income is usually taxed as professional income at progressive rates (up to 50%), plus social security contributions. Staking benefits are often considered movable income and taxed at 30% withholding tax.
What should I do if I have not declared crypto gains in the past?
Although the previous tax regularization procedure expired on December 31, 2023, the De Wever I coalition agreement (February 2025) offers good news: there will be a new (fifth) round of tax regularization. This means that in the near future you will still be able to declare undeclared crypto profits against payment of the tax due plus a penalty rate. The exact terms have yet to be legislated.
What data on my crypto transactions does the Belgian tax authorities get?
The European DAC8 Directive will require crypto platforms to transmit information about their customers and their transactions to tax authorities starting in 2026. In addition, crypto accounts will be reported to the CAP and there is increasing international exchange of financial data.
Can I request a ruling on the tax treatment of my crypto coins?
Yes, if in doubt about the tax treatment of your specific situation, you can request an advance ruling (ruling) from the Office of Advance Tax Rulings. This provides legal certainty about the tax treatment of your crypto investments.
Conclusion and contact information
The tax treatment of crypto currencies in Belgium is currently still evolving. In the absence of specific legislation, each situation is assessed individually based on different criteria. With the new capital gains tax of 10% and stricter controls, the tax landscape for crypto investors in Flanders, Wallonia and the Brussels Capital Region will change significantly from 2026.
As a specialized law firm, we closely monitor these developments. We advise crypto investors to carefully document their transactions, comply with their reporting obligations and seek professional advice when in doubt.
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