To submit a nihil client listing on Intervat, you can either upload an Excel file generated from Accountable, or enter the declaration manually on screen. Both methods are explained below.
Client listing vs nil client listing
A client listing is a report submitted to the tax authorities, listing the Belgian VAT numbers of B2B clients who received goods or services exceeding €250 (excluding VAT) in the previous year.
A nil client listing is submitted when no reportable transactions occurred with VAT-taxable B2B clients exceeding a total of €250 during the calendar year.
Starting in 2026, businesses under the franchise VAT regime must also submit a client listing, even if it’s empty.
How to submit a nihil client listing via file upload
Follow these five steps to download the file from Accountable and upload it to Intervat.
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 March 31, 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
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
Step 3: Upload the Excel file 📤
In Intervat, choose Submit a declaration via file upload
Import the file of your client listing
Click Continue
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
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
Alternative: how to submit a nil client listing manually (by screen)
1. Log in to Intervat with itsme (or another available method)
2. Select the profile with your company number
3. In your dashboard, go to "Declaration by screen"
4. Under "Type of declaration", select "Client listing"
5. Tick the box "I want to make a nihil return"
6. Click "Continue"
7. Enter the year (e.g. "2025")
8. Click "Continue"
9. Enter your turnover (the total of your self-employed income for the year)
10. Click "Continue" to finalise the submission
Confirm the successful submission by returning to the Intervat dashboard, checking the status for "Success", and downloading or saving the acknowledgment receipt as proof.
Key takeaways
Submit a nil client listing when you had no reportable B2B transactions exceeding €250 in the calendar year.
You can download the ready-to-upload Excel file directly from the Taxes section in Accountable.
Upload the file to Intervat and wait for the validation result before confirming the submission.
If you prefer not to use a file, you can submit the nil declaration manually via "Declaration by screen" on Intervat.
Always download the acknowledgment receipt as proof of successful submission.
Want to learn more? Join our upcoming webinar 'From start to success: making the most out of Accountable', hosted live by one of our tax coaches to answer your questions.
Need help? Chat with us or email support@accountable.eu, we're happy to help.