Every VAT-registered business in Belgium must regularly file a VAT return with FPS Finance. The Intervat platform is the official tool for filing it online. This tutorial guides you through each step of filing your Intervat VAT return, from preparing your figures to confirming the submission.

Understanding VAT in Belgium: Essential Recap

VAT Rates Applicable in Belgium

Belgium applies several VAT rates:

Rate Name Examples of application
21% Standard rate Most goods and services (electronics, clothing, consultancy services, etc.)
12% Reduced rate Catering (food consumed on-site), social housing, margarine, agricultural tyres
6% Reduced rate Basic food, books, medicines, water, passenger transport, renovation of older homes (over 10 years)
0% Exemption with right to deduct Exports outside the EU, intra-Community supplies

Who Must File a VAT Return?

Any individual or legal entity carrying out an economic activity independently and on a regular basis is, in principle, VAT-registered. This includes:

  • Self-employed individuals (unless under the exemption scheme)
  • Companies (SRL, SA, SC, etc.)
  • Non-profit associations carrying out economic activities subject to VAT
  • Self-employed people in a secondary activity who exceed the exemption threshold

Important exception: businesses under the VAT exemption scheme (annual turnover below EUR 25,000 excluding VAT) do not need to file periodic VAT returns, but must file an annual client listing.

Frequency of VAT Returns

How often you must file depends on your annual turnover:

Annual turnover (excluding VAT) Frequency Returns per year
Below EUR 2,500,000 Quarterly 4 returns
EUR 2,500,000 or above Monthly 12 returns
Below EUR 2,500,000, by option Monthly (on request) 12 returns

Good to know: a quarterly filer can opt for monthly returns, for example to benefit from more frequent VAT refunds. This option is worthwhile if you regularly carry a VAT credit (more deductible VAT than VAT due).

Filing Deadlines

Frequency Filing deadline
Monthly return The 20th of the month following the period
Quarterly return The 25th of the month following the quarter

Concrete examples:

  • Monthly return for January 2026: to be filed by 20 February 2026 at the latest
  • Quarterly return for Q1 2026 (January–March): to be filed by 25 April 2026 at the latest

What Is Intervat?

Intervat is the Belgian FPS Finance's electronic platform for the online filing of VAT returns and related documents. Accessible at https://eservices.minfin.fgov.be/intervat/, it has been the mandatory channel for filing these documents since 2009.

Documents You Can File on Intervat

Intervat allows you to file the following documents:

  • Periodic VAT return (monthly or quarterly): form 625
  • Annual listing of VAT-registered clients: to be filed before 31 March of the following year
  • Intra-Community statement: for intra-Community supplies and services
  • Special VAT return: in certain specific cases

Technical Prerequisites

Before you can file your Intervat VAT return, make sure you meet the following requirements.

Authentication Method

To access Intervat, you need one of the following authentication methods:

  • Electronic identity card (eID) with a card reader and PIN code
  • itsme app on your smartphone
  • Class 3 digital certificate (Isabel, GlobalSign, etc.): often used by accountants and accounting firms

Computer Setup

  • Compatible browser: Chrome, Firefox, Edge or Safari (recent versions)
  • eID card reader: if you use the eID, the reader must be installed and the eID middleware activated (downloadable from eid.belgium.be)
  • Stable internet connection: the submission can fail if the connection is unstable

Although you can manually enter the amounts on Intervat, most entrepreneurs use accounting software that automatically generates the VAT return's XML file. The most widely used software in Belgium includes:

  • Exact Online: a cloud solution popular with SMEs and accountants
  • Horus: Belgian accounting software widely used by accounting firms
  • BOB Software (Sage BOB): an integrated management solution for SMEs
  • Yuki: a cloud solution with automatic invoice scanning
  • Winbooks: accounting software widely used in the accounting-firm sector
  • Octopus: a modern cloud solution for accountants

This software generates a file in XML format, which you can then upload to Intervat, avoiding any manual entry errors.

Step-by-Step Tutorial: Filing Your Intervat VAT Return

Step 1: Prepare the Return Data

Before accessing Intervat, gather the following information for the relevant period — this is the first step of filing your Intervat VAT return correctly:

Sales invoices (outgoing transactions):

  • Total sales subject to 21% (box 03)
  • Total sales subject to 12% (box 02)
  • Total sales subject to 6% (box 01)
  • Total intra-Community supplies (box 46)
  • Total exports outside the EU (box 47)
  • VAT due on sales (boxes 54, 55, 56)

Purchase invoices (incoming transactions):

  • Total purchases of goods and services (boxes 81, 82, 83)
  • Total intra-Community acquisitions (box 86)
  • Deductible VAT (box 59)

Adjustments:

  • Credit notes issued (box 49)
  • Credit notes received (box 64)
  • VAT on credit notes (boxes 63, 65)

Tip: if you use accounting software, these figures are calculated automatically. Still, check the amounts before filing.

Step 2: Log In to Intervat

  1. Open your browser and go to https://eservices.minfin.fgov.be/intervat/
  2. Click "Log in" or "Aanmelden" (the interface is available in French and Dutch)
  3. You are redirected to the CSAM authentication page
  4. Choose your login method:
    • eID: insert your identity card into the reader and enter your PIN code
    • itsme: open the app on your smartphone and confirm
    • Digital certificate: select your certificate from the list
  5. After authentication, you reach the Intervat dashboard

Step 3: Choose the Type of Document to File

On the Intervat dashboard, you will see several options:

  • File VAT return: to submit your periodic return
  • File client listing: for the annual listing of VAT-registered clients
  • File intra-Community statement: for intra-Community transactions
  • Consultation: to view your previous returns

Click "File VAT return".

Step 4: Filing Method – XML File or Manual Entry

Intervat offers two filing methods:

Option A: Filing via an XML File (Recommended)

This is the fastest and most reliable method:

  1. In your accounting software, generate the VAT return's XML file for the relevant period
  2. On Intervat, click "Upload a file"
  3. Click "Browse" and select the XML file generated by your software
  4. Intervat analyses the file and displays a summary of the amounts
  5. Check the amounts shown
  6. If everything is correct, click "Confirm submission"

Option B: Manual Entry (for Small Returns)

If you do not have accounting software:

  1. Click "Manual entry" or "Online entry"
  2. Select the return period (month or quarter)
  3. Fill in the boxes one by one:

Frame II – Outgoing transactions:

  • Box 01: taxable amount of transactions at 6%
  • Box 02: taxable amount of transactions at 12%
  • Box 03: taxable amount of transactions at 21%

Frame III – Incoming transactions:

  • Box 81: purchases of goods, raw materials and consumables
  • Box 82: purchases of services and miscellaneous goods
  • Box 83: purchases of capital goods

Frame IV – Tax due:

  • Box 54: VAT on the transactions in boxes 01, 02, 03
  • Box 55: VAT on the transactions in boxes 86 and 88
  • Box 56: VAT on the transactions in box 87 (co-contractor)

Frame V – Deductible tax:

  • Box 59: deductible VAT

Frame VI – Balance:

  • Box 71: VAT due to the State (if the balance is a debit)
  • Box 72: amounts owed by the State (if the balance is a credit)
  1. After filling in all the relevant boxes, click "Calculate" to check consistency
  2. Click "Confirm submission"

Step 5: Review and Confirmation

  1. Intervat displays a complete summary of your return with all the amounts per box
  2. Carefully check each amount
  3. If you spot an error, click "Edit" to correct it
  4. If everything is correct, click "Sign and submit"
  5. You must electronically sign the return (via eID or certificate)
  6. An acknowledgement of receipt is generated with a unique reference number

Important: keep the acknowledgement of receipt carefully. It is proof of your submission in the event of an audit.

Step 6: Paying the VAT Due

If your Intervat VAT return shows a balance to pay (box 71), you must make the payment within the same deadline as the filing:

Bank details for payment:

  • Account: BE22 6792 0022 2952 (for VAT due)
  • Structured reference: provided in the acknowledgement of receipt or generated via MyMinfin. The format is: +++ XXX/XXXX/XXXXX +++ (your enterprise number followed by the period)

Payment methods:

  • Standard bank transfer
  • Via MyMinfin (online payment)
  • Direct debit (to be set up in advance)

Warning: late payment incurs late-payment interest of 0.8% per month (rate in force, verifiable on the FPS Finance website). Be punctual.

The Replacement (Corrective) Return

If you discover an error after filing, you can submit a replacement return:

  1. Log in to Intervat
  2. Select "File VAT return"
  3. Select the same period as the return you need to correct
  4. Intervat detects that a return already exists and offers to file a replacement return
  5. Enter the correct amounts (the replacement return fully replaces the previous one)
  6. Confirm and sign

Tip: it is better to correct an error quickly via a replacement return than to wait for an FPS Finance audit. This demonstrates your good faith.

Special Cases

The Exemption Scheme (Small Businesses)

If your annual turnover is below EUR 25,000 (excluding VAT), you can benefit from the VAT exemption scheme. In this case:

  • You do not charge VAT to your clients
  • You cannot deduct VAT on your business purchases
  • You do not file periodic VAT returns
  • You must file an annual client listing (even if empty) before 31 March

The Co-Contractor Scheme (Reverse Charge)

For certain transactions (property works between VAT-registered businesses, construction subcontracting), the co-contractor mechanism applies. The buyer declares and pays the VAT instead of the seller. The invoice must state "Reverse charge – Article 20 of Royal Decree No. 1". The amounts must be reported in boxes 56 and 87 of your Intervat VAT return.

Intra-Community Transactions

If you buy or sell goods or services to businesses in other EU countries:

  • Intra-Community acquisitions (purchases): to be declared in boxes 86 (goods) and 88 (services), with VAT due in box 55 and deductible VAT in box 59
  • Intra-Community supplies (sales): to be declared in box 46 (goods) or 44 (services), exempt from Belgian VAT
  • An intra-Community statement must be filed in addition to the VAT return

The Annual Client Listing

Before 31 March each year, you must file on Intervat the list of your VAT-registered clients in Belgium to whom you invoiced more than EUR 250 (excluding VAT) during the previous year.

The listing includes, for each client:

  • The VAT number
  • Total turnover (excluding VAT)
  • The total amount of VAT charged

Penalties for Late or Missing Returns

Missing the deadline for your Intervat VAT return carries real financial consequences.

Infringement Penalty
Late filing Fine of EUR 100 per return and per month of delay (with a minimum of EUR 50)
No filing Ex officio assessment by FPS Finance + fines
Errors in the return Proportional fine ranging from 10% to 200% of the VAT evaded
Late payment Late-payment interest of 0.8% per month of delay

Practical Tips to Avoid Errors

  1. Use accounting software: manual entry is a common source of errors when filing your Intervat VAT return. Good accounting software automatically generates the XML file and performs consistency checks.
  2. Reconcile your returns with your accounts: check that the total of the boxes matches your general ledger.
  3. Meet the deadlines: set reminders in your calendar. The 20th or 25th of the month comes around quickly.
  4. File your invoices methodically: number your invoices sequentially and keep them for 7 years (a legal requirement in Belgium).
  5. Check the VAT numbers of your clients/suppliers: use the VIES system (https://ec.europa.eu/taxation_customs/vies/) to verify the validity of intra-Community VAT numbers.
  6. Keep track of acknowledgements of receipt: create a dedicated folder to archive your Intervat acknowledgements of receipt.
  7. Delegate the filing to your accountant: if your accounts are kept by an accountant, they can file the returns directly via Intervat using their electronic mandate.

Useful Resources

The links below will help you prepare and file your Intervat VAT return with confidence.

Conclusion

Filing your VAT return on Intervat is a recurring obligation, but a perfectly manageable one. With good preparation, suitable accounting software and adherence to deadlines, this formality takes only a few minutes. The key to success lies in the rigour of your day-to-day bookkeeping: well-organised invoices, up-to-date entries and regular monitoring of your VAT boxes will let you file your Intervat VAT return with confidence.

If you are just starting out and VAT feels complex, do not hesitate to call on an accountant. Their fees are tax-deductible and represent a worthwhile investment to avoid costly errors and fines.

This article was written by the Espero-Soft team for the blog dedicated to entrepreneurs in Belgium. For personalised advice, do not hesitate to consult an accountant or accredited tax adviser.