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Transaction Tax

Complete Guide to the Belgian Tax on Stock Exchange Transactions (TOB)

Everything you need to know about the Taks op Beursverrichtingen — rates, exemptions, filing obligations, and recent changes.

Last updated: 10 January 2025

What is the Belgian Tax on Stock Exchange Transactions?

The Tax on Stock Exchange Transactions (Taks op Beursverrichtingen, or TOB) is a transaction-based tax that applies to certain securities trades executed through Belgian financial intermediaries or involving Belgian residents. Unlike capital gains taxes, the TOB is levied on the transaction itself, regardless of whether the trade results in a profit or loss.

This tax applies to a broad range of financial instruments, including shares, bonds, investment funds, and certain derivatives. The tax is typically withheld automatically by your broker or financial institution at the moment of the transaction.

How the TOB Works

When you buy or sell securities through a Belgian broker, the TOB is calculated as a percentage of the transaction value and deducted immediately. The rate and applicable cap depend on the type of instrument being traded. For example, transactions involving equity securities are subject to different rates than bond transactions.

The tax applies to both purchase and sale transactions, meaning you may be taxed twice over the lifecycle of an investment — once when you buy, and again when you sell. This distinguishes the TOB from other investment taxes that only apply upon realization of gains.

Who Must Pay the TOB?

The TOB primarily affects Belgian residents who trade securities, as well as non-residents trading through Belgian intermediaries. If you use a foreign broker, the TOB may still apply if you are a Belgian resident, though enforcement and collection mechanisms differ.

Financial institutions acting as intermediaries are responsible for withholding and remitting the tax to the Belgian tax authorities. Individual investors generally do not file separate TOB returns; the tax is handled automatically through their brokerage accounts.

Exemptions and Special Cases

Certain transactions are exempt from the TOB. These include primary market transactions (such as initial public offerings), transactions between professional market participants acting in their professional capacity, and certain intra-group reorganizations.

Additionally, some pension savings vehicles and long-term investment products may benefit from reduced rates or exemptions under specific conditions. The rules surrounding exemptions are complex and depend on the legal structure of the investment, the parties involved, and the nature of the transaction.

Recent Changes and Legislative Updates

Belgian tax authorities have periodically adjusted TOB rates and expanded the scope of covered instruments to address market developments and close loopholes. Recent years have seen increased scrutiny of transactions conducted through foreign platforms and stricter reporting requirements for financial intermediaries.

Investors should be aware that the regulatory landscape continues to evolve, particularly in response to digitalization of financial markets and the rise of cross-border trading platforms.

Common Questions About the TOB

Does the TOB apply to cryptocurrency transactions? The application of the TOB to crypto assets depends on whether the instrument qualifies as a security under Belgian law. Traditional cryptocurrencies like Bitcoin generally fall outside the scope, but tokenized securities or crypto derivatives may be subject to the tax.

Can I deduct the TOB from my taxable income? The TOB is not deductible as an expense for personal income tax purposes. It is treated as a transaction cost, which may be factored into the acquisition cost or disposal proceeds for capital gains calculations, where applicable.

What happens if my broker doesn’t withhold the TOB? Belgian residents using foreign brokers may be required to self-report and pay the TOB directly to the tax authorities, though enforcement mechanisms and practical compliance procedures are still developing.

How Auryth Helps

Navigating the TOB and its interaction with other investment taxes can be challenging. Auryth provides real-time access to authoritative guidance, rate schedules, exemption criteria, and compliance procedures. Our platform helps investors, tax advisors, and financial professionals stay current with the latest legislative changes and administrative rulings.

Whether you’re managing a personal portfolio or advising clients on cross-border investments, Auryth ensures you have the clarity and precision you need to make informed decisions.


This guide is for informational purposes only and does not constitute legal or tax advice. Always consult a qualified tax advisor for matters specific to your situation.