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One-click VAT submission: how your client gives you access to Intervat

Written by: Sophia Merzbach

Updated on: October 31, 2026

Reading time: 2 minutes

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You can submit your client's VAT return to Intervat directly from Accountable, in one click. Before that, your client must give you permission once. Only your client can do this.

💡 Tip: send this article to your client. Part 1 is written for them.

✅ Before you start

Your client must:

  • be based in Belgium and subject to VAT;

  • have a Taxes or Max plan, or a seat you assigned to them;

  • have already given you access to their Accountable account.

Only one accountant office can hold this permission at a time.

👤 Part 1 · For the client: give your accountant access

Your accountant must already appear under Accountants in Settings > Data access. If not, invite them first via Give someone access.

Option 1: from the Taxes page (web)

  1. Go to Taxes.

  2. In the banner "Your VAT deadline is approaching", click Give your accountant access.

📸 [Screenshot: banner on the Taxes page]

Option 2: from Data access (web or mobile app)

  1. Go to Settings > Data access.

  2. Under Accountants, click ⋮ next to your accountant.

  3. Click Give access to FPS Finance.

📸 [Screenshot: Data access menu, web and mobile]

Then, for both options

  1. Select your accountant (if you have several).

  2. Not logged in to FPS Finance yet? You are sent to the FPS Finance login page (for example with itsme). Tick the Intervat box. Already logged in? You see a green label "Already logged in to FPS Finance".

  3. Click Give permission.

📸 [Screenshot: permission pop-up, web and mobile]

✅ Done. Your accountant can now submit your VAT return in one click. The permission is valid for one year. You can revoke it at any time in Settings > Data access.

🧾 Part 2 · For the accountant: submit the VAT return

  1. In your client list, use the Intervat filter to see which clients have given you access.

  2. Open the client and go to the Taxes tab. A banner confirms that the client has logged in to Intervat for you.

  3. Click the VAT quarter (or Start tax review in the banner). Review the detected issues and the VAT boxes.

  4. Click Submit to Intervat.

After submission:

  • Your client receives an email that takes them straight to the payment screen.

  • You do not receive a confirmation email. The receipt is in Intervat, under My dashboard.

Step-by-step screenshots of the submission: Exporting filings and submitting VAT returns via Intervat.

💡 Good to know

  • No permission? You can still send the XML file to yourself via the ⋮ menu of the VAT return and upload it to Intervat manually.

  • Sent to the FPS Finance login page when you click submit? Your client's permission is missing or has expired. Ask your client to give permission again (Part 1).

  • The permission stops when your client revokes it, removes your access, or no longer has a Taxes or Max plan or a seat.

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Sophia Author

Author - Sophia Merzbach

Sophia has been a key member of the Accountable team for many years, bringing a unique blend of journalistic precision and in-depth tax expertise to her work.

Who is Sophia ?

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