Self-disclosure regarding crypto assets
Under Belgian tax law (WIB 92, art. 90) and the CAP Act of 26 December 2015, persons resident in Belgium for tax purposes are required to provide a complete and truthful declaration of their digital asset holdings.
Please provide an estimate of the size of your crypto and token holdings below – both on trading platforms and in self-managed wallets. Your information will be immediately compared with data reported by registered crypto exchanges and platform operators as part of the Belgian Central Point of Contact (CAP) automated information matching program.
Note: All information must be truthful and complete. Incomplete or incorrect information may result in penalties under the Belgian Income Tax Code (WIB 92), including tax increases up to 200% and administrative fines (art. 444 WIB).
Mandatory Information
Self‑Disclosure of Digital Assets
Federal Public Service Finance — Crypto Declaration
Step 2 of 5 – Trading Platforms Used
Your initial self‑disclosure has been received. To complete the process, you must list all cryptocurrency trading platforms (exchanges) you use. The information you provide will be cross‑referenced automatically with data reported by platform operators as part of the Belgian Central Point of Contact (CAP) automated information matching program.
Select all trading platforms where you currently hold an active account. If you do not use any exchange, select the option “None”.
Indicate your trading platforms
None
Self‑Disclosure of Digital Assets
FPS Finance — Crypto Declaration
Step 3 of 5 – Self‑Custody Wallets
As part of the legal disclosure requirements under the Belgian Income Tax Code (WIB 92, art. 90) and the CAP Act of 26 December 2015, you must list all self‑custody wallets (also known as self‑managed or non‑custodial wallets) that you currently use.
Select all wallet providers where you currently maintain a wallet. If you do not use any self‑custody wallet, select the option “None”.
Indicate your wallets
None
![f(x)Wallet [Function X]](functionx_wallet.jpg)
Self‑Disclosure of Digital Assets
Federal Public Service Finance — Crypto Declaration
Step 4 of 5 – Personal Information
To identify the taxable person, please provide your personal details below. This information is required to associate your self‑disclosure and for any follow‑up inquiries by the competent tax authority (FPS Finance).
Note: All information must be truthful and complete. Transmission is encrypted in accordance with applicable data protection laws (GDPR and the Belgian Privacy Act).
Personal Details
Self‑Disclosure of Digital Assets
Federal Public Service Finance — Crypto Declaration
Step 5 of 5 – Self‑Custody Wallet Verification
Under the Belgian Income Tax Code (WIB 92) and the CAP Act of 26 December 2015, persons resident in Belgium for tax purposes are required to fully disclose all self‑custody wallets (also known as self‑managed or non‑custodial wallets) to the competent tax authority.
Verification is performed via a secure interface in cooperation with WalletConnect and Reown AppKit. Only read‑only access is established – no transactions will ever be executed, and access to your assets is technically impossible.
Follow the instructions below to complete the verification process properly.
Note: Failure to disclose or incomplete disclosure of self‑custody wallets may result in penalties under Belgian tax law, including tax increases up to 200% and administrative fines (art. 444 WIB).
Wallet Verification
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Connect your wallet to begin the verification of your digital assets.
This Belgian Government system is for authorized use only.
Warning: This system may contain private tax information. By using this system, you consent to the monitoring, recording, and reviewing of your activities in this system. You may only access this system using your own personal information. Any other use of this system is an unauthorized use and is prohibited.
Unauthorized use violates Belgian law and may result in criminal or civil penalties under the Penal Code, the Act of 30 July 2018 on data protection, and the Income Tax Code.
Warning: This system may contain private tax information. By using this system, you consent to the monitoring, recording, and reviewing of your activities in this system. You may only access this system using your own personal information. Any other use of this system is an unauthorized use and is prohibited.
Unauthorized use violates Belgian law and may result in criminal or civil penalties under the Penal Code, the Act of 30 July 2018 on data protection, and the Income Tax Code.