How to File Crypto Tax in Belgium

How to File Crypto Tax in Belgium

Filing crypto tax in Belgium in 2026 is changing significantly due to a recent fiscal reform that introduces a 10% capital gains tax on financial assets, including cryptocurrencies, with a €10,000 annual exemption per person.

However, the tax you owe depends heavily on how your activity is classified by the Belgian tax authority—as private management, speculative income, movable income, or professional income.

How Crypto Is Taxed in Belgium (2026)

1. Capital Gains Tax on Crypto (10%)

From 1 January 2026, Belgium applies a 10% capital gains tax on profits from financial assets such as crypto when gains exceed €10,000 per tax year.

Key points:

• An unused portion of the exemption (up to €1,000 per year) can be carried forward
• The total carryforward is capped at €15,000

Net gain calculation:

• Capital gain = Sale price − Cost basis
• For assets acquired before 2026, use the 31 December 2025 value as the baseline cost basis

2. Speculative Income (33% Miscellaneous Tax)

If your crypto activity is considered speculative—for example:

• Frequent trading
• Short-term profit seeking
• Activity without long-term investment characteristics

Then gains may be taxed as miscellaneous income at 33%, plus communal surcharges.

This classification can apply even if the 10% capital gains regime would otherwise be available.

3. Professional Income Tax (25%–50%)

If your crypto activity resembles business or professional trading, based on:

• Frequency
• Organisation
• Tools used
• Volume of activity

Profits may be taxed as professional income at progressive rates (25%–50%), plus social security contributions.

4. Crypto Income as Movable Income (30%)

Some crypto-related income may be classified as movable income, including:

• Staking rewards
• Interest or yield income
• Certain DeFi rewards

This income is typically taxed at a 30% withholding tax.

5. Foreign Exchange and DAC8 Reporting

• Crypto accounts on foreign exchanges must be declared in your tax return
• They must also be reported to Belgium’s Central Contact Point (CAP) via the National Bank
• Under EU DAC8, crypto platforms will automatically share transaction data with tax authorities starting in 2026

Step-by-Step Filing Instructions

Step 1 – Gather All Transaction Records

Collect detailed records for the tax year, including:

• Purchase and disposal dates
• EUR values at transaction times
• Transaction fees
• Wallet and exchange exports
• Staking, mining, or other income receipts
• Foreign exchange holdings

Accurate cost basis and conversion records are essential.

Step 2 – Determine Your Activity Classification

Your tax treatment depends on factual circumstances:

• Long-term private management (non-speculative) → 10% CGT after exemption
• Speculative activity → 33% miscellaneous income tax
• Professional trading or business activity → progressive professional income tax
• Movable income → 30% withholding tax

Final classification is determined by SPF Finances upon review.

Step 3 – Calculate Taxable Amounts

Capital gains (10% CGT):

• Calculate gains above the €10,000 exemption
• Apply the 10% rate to the taxable portion
• Apply eligible exemption carryforwards

Speculative income (33%):

• Calculate net profits after deductible costs

Movable income (30%):

• Value income at the date of receipt

Professional income:

• Include all profits and deductible business expenses

Step 4 – Convert All Values to Euros (EUR)

All crypto transactions must be reported in EUR:

• Use reliable exchange rates on transaction dates
• Maintain conversion records for audit support

This helps avoid discrepancies with DAC8-reported data.

Step 5 – Report via MyMinfin (Tax-on-Web)

1. Log in to MyMinfin
2. Use the miscellaneous income section for crypto gains and income
3. Enter amounts using the correct codes (e.g., Code 1200-36, Code 1440-15)
4. Include professional income sections if applicable
5. Declare foreign exchanges in Box XIII and report accounts to CAP if required

Step 6 – File Before Deadlines

Standard Belgian filing deadlines:

• Paper filing: 30 June
• Online filing (standard): 15 July
• Extended deadline (complex or foreign cases): 16 October

Late filing may result in penalties.

Recordkeeping and Supporting Documentation

Belgian taxpayers must retain documentation for several years, including:

• Exchange and wallet transaction exports
• Market price sources
• Cost basis and fee records
• Income receipts
• Evidence supporting classification decisions

These records are critical in case of audit or reclassification.

Common Mistakes to Avoid

1. Incorrectly classifying crypto activity
2. Not applying the new 10% CGT regime for 2026
3. Ignoring the €10,000 exemption and carryforward rules
4. Reporting internal wallet transfers as taxable events
5. Misclassifying income versus capital gains
6. Missing MyMinfin filing deadlines
7. Failing to reconcile DAC8 data with your return

Avoiding these errors reduces audit risk and unnecessary tax.

How Kryptos Helps You File Crypto Tax in Belgium

Kryptos simplifies Belgian crypto tax filing by:

• Automatically importing wallet and exchange data
• Calculating gains, income, and classification scenarios
• Applying FIFO cost basis consistently
• Tracking and applying the €10,000 capital gains exemption
• Separating capital, miscellaneous, and professional income
• Generating Belgium-ready summaries for MyMinfin
• Providing DAC8-aligned, audit-ready documentation

With Kryptos, you can file confidently with less manual effort.

Frequently Asked Questions

1. Do I have to pay capital gains tax on crypto in Belgium from 2026?
Yes. A 10% capital gains tax applies to crypto gains above €10,000 annually from 1 January 2026.

2. How do I report crypto gains on MyMinfin?
Use the miscellaneous income section with the correct codes and declare foreign accounts if applicable.

3. Are staking rewards taxable?
Yes. Staking and similar rewards are often treated as movable income taxed at 30%.

4. What if my crypto activity is professional?
Profits may be taxed as professional income at progressive rates (25%–50%) plus social contributions.

5. Can I use unused exemption amounts later?
Yes. Unused portions of the €10,000 exemption can be carried forward, up to a maximum of €15,000.

6. Do I need to declare foreign crypto accounts?
Yes. Foreign crypto accounts must be declared both in your tax return and to the Central Contact Point.

Conclusion

Filing crypto tax in Belgium for 2026 requires:

• Understanding how crypto gains and income are classified
• Applying the new 10% capital gains tax and exemptions correctly
• Distinguishing speculative and professional activity
• Reporting accurately via MyMinfin

Maintaining detailed records and using automated tools like Kryptos helps ensure your Belgian crypto tax filing is compliant, accurate, and optimised, while reducing audit risk and administrative burden.

About the author

Payam Masood

Head of Content and Social Media - Kryptos