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How to submit a nil client listing in Intervat as a franchisee?

If you are a franchisee in Belgium under the small business exemption scheme, here is how to submit a nil client listing in Intervat.

Written by Simon

If you are a franchisee in Belgium under the small business exemption scheme, you must now submit a nil annual client listing via Intervat, even if you have no B2B clients to declare.

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Until recently, companies benefiting from this regime did not always have to submit an annual client listing when it was nil, meaning they had no clients to declare.

🚨 Starting in 2026, this changes: even if your client listing is empty, you must now submit a “nil” listing via Intervat.

Companies under this regime must also communicate their total turnover realised in Belgium during the previous calendar year.

📅 For operations carried out in 2025, the filing deadline is 31 March 2026.

An annual client listing only concerns B2B clients with a Belgian VAT number to whom you invoiced more than €250 excluding VAT during the year.

⚠️ If you have no such clients, your listing is "nil". You must still submit it via Intervat and indicate your annual turnover (or €0 if you carried out no operations).

Please note that this article provides general guidance only. Tax rules may vary depending on your individual situation. When in doubt, ask your Tax Coach.

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This article walks you through each step: downloading the file from Accountable, logging in to Intervat, uploading and validating the file, and confirming your submission.


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Step 1: Download the Excel file from Accountable 📥

  • Open Accountable

  • Go to the Taxes section

  • Select the income year: for example, the annual client listing for income from 2025 must be submitted no later than 31 March 2026, but it will appear under the year 2025 in the Taxes screen.

  • Open the Client listing section

  • Select "Email your client listing" and download the Excel file

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Step 2: Log in to Intervat 🔐

  • Go to the Intervat website

  • Click Login

  • Sign in using Itsme, eID, or another Belgian authentication method

  • Enter the Intervat dashboard

  • Select your business profile if prompted

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Step 3: Upload the Excel file 📤

  • In Intervat, choose Submit a declaration via file upload

  • Import the file of your client listing

  • Click Continue


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Step 4: Validate the file ✅

  • Intervat automatically checks the file

  • Wait for the validation result

  • If there are errors, correct them and upload the file again

  • If the file is valid, proceed to the submission step


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Step 5: Confirm successful submission 🧾

  • Return to the Intervat dashboard

  • Check the status of the submission

  • Make sure the status shows Success

  • Download or save the acknowledgment receipt as proof of submission


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Key takeaways

  • Download the client listing Excel file from Accountable

  • Log in to Intervat

  • Upload the file

  • Validate the file

  • Sign and submit the declaration

  • Confirm the status shows Success

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Need help? Chat with us or email support@accountable.eu, we're happy to help.

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