How to correct Belgian nil VAT returns and rebuild company accounts in 2026

A Belgian company that filed nil VAT returns despite taxable sales should reconcile its invoices, confirm the appropriate correction procedure and address unpaid VAT alongside its bookkeeping. The treatment of penalties, deductions and director withdrawals depends on the individual circumstances.

The figures below are illustrative. The discussion concerns VAT periods in 2025–2026 and, where stated, accounts closing on 31 December 2025 and assessment year 2026.

Start by identifying what was actually filed

Consider a small Belgian BV/SRL whose sales invoices show VAT, while submitted returns show no activity. Its accounts also need to be reconstructed.

The starting point is a reconciliation of sales, purchases, bank movements and the returns actually received by the administration. Check:

• The company's VAT identification start date.

• Which periodic returns were submitted, and when.

• Whether invoices were issued before VAT identification took effect.

• The VAT collected, deductible purchase VAT and payments already made.

A timely nil return containing incorrect figures is different from a return that was never filed. The distinction matters when determining the procedure and possible penalties. VAT shown on an invoice cannot simply be ignored because identification or bookkeeping was incomplete.

Where invoices predate VAT identification, the accountant should confirm the regularisation route with the competent VAT office.

Correcting a return after its deadline

Since 1 January 2025, a corrective periodic VAT return cannot replace an earlier return after its statutory filing deadline. Material errors discovered afterwards are corrected in the next return to be submitted.

This should not be read as permission to put every historical problem into one adjustment without checking it. Missing returns, invoicing errors and an incorrect identification start date need separate examination.

For a quarterly filer correcting eligible errors through the fourth-quarter 2026 return, the filing and payment deadline is 25 January 2027. The accountant should identify the appropriate entries and retain a schedule linking each correction to the underlying invoice and period.

Calculate the VAT from invoices, not from the bank balance

Suppose omitted Belgian sales amount to €200,000 excluding VAT, all subject to 21% VAT. Output VAT is:

€200,000 × 21% = €42,000.

If qualifying business purchases amount to €2,420 including 21% VAT, and that VAT is fully deductible, the input VAT is:

€2,420 × 21 / 121 = €420.

The illustrative net VAT is therefore €42,000 − €420 = €41,580, before interest, penalties, prior payments or other adjustments.

If a purchase amount is quoted excluding VAT, the calculation changes: multiply the taxable amount by the applicable rate. Deductibility must also be checked invoice by invoice. A bank payment alone does not establish a right to deduct VAT.

Interest and penalties require separate calculations

For 2026, Belgian VAT late-payment interest is 8% per year, calculated monthly, with a fraction of the relevant monthly period counted as a full month.

On an illustrative unpaid amount of €42,000, one month at that rate represents €280. This is not a calculation of the total interest on several missed quarters: each liability has its own due date, and payments affect the balance.

An inaccurate return and late payment can raise different penalty issues. A generic percentage should not be presented as the maximum exposure for every case.

Voluntary disclosure, documented good faith and a reasoned request for remission may be relevant. They do not guarantee that a penalty will be cancelled, even where an accountant caused the error.

Keeping money in the company's bank account is not the same as paying the Treasury. The accountant should promptly confirm the payment arrangements and how payments will be allocated rather than simply waiting for the next filing deadline.

Rebuild the accounts alongside the VAT corrections

A BV/SRL must keep double-entry accounts. Reconstructing them requires a consistent record of:

• Sales invoices and credit notes.

• Purchase invoices and supporting documents.

• Company bank statements from the start of activity.

• Initial contributions and formation documents.

• Transfers to directors and their supporting explanations.

The sales ledger, VAT reconciliation and annual accounts must agree. The corporate income tax return should then be prepared from those reconstructed accounts.

For accounts closing on 31 December 2025, approval should take place within six months, by 30 June 2026. Filing with the National Bank is due within 30 days of approval, and no later than 31 July 2026. Earlier approval can therefore produce an earlier filing deadline.

Late annual accounts and a late corporate income tax return are separate compliance issues. Filing one does not automatically regularise the other. The relevant corporate tax filing deadline for assessment year 2026 should be checked against the company's actual financial year and filing circumstances.

Classify director withdrawals separately

Money transferred from the company to its director needs a defensible accounting and tax treatment.

Director remuneration can involve personal income tax, social contributions, withholding tax and reporting on form 281.20.

A debit current account represents money owed back to the company. A benefit in kind may arise where the financing is interest-free or below the relevant reference rate. It is not a permanent tax-free withdrawal.

A dividend requires the relevant company-law conditions and decisions. Transfers should not simply be relabelled as dividends to eliminate a debit balance.

The correct classification depends on the facts and supporting records. Reference rates for one income year should not automatically be reused for another.

A practical order of work

First, secure the records and verify the submitted returns and registration details. Next, quantify the VAT and discuss correction and payment with the accountant and, where needed, the VAT office.

Rebuild the accounts at the same time, classify director transfers, and identify overdue annual accounts and tax returns. Check that the company's UBO information and the relevant social-insurance affiliations are in order.

Finally, establish a reliable recurring process for invoices, bookkeeping, remuneration and filing deadlines. Correcting the past should also prevent another inaccurate return.

FAQ

Does a nil VAT return mean there is no VAT debt?

No. If taxable sales were omitted, VAT can still be due. The underlying transactions determine the liability.

Can an old VAT return simply be replaced?

Not after its statutory filing deadline under the correction rules applying from 2025. Material errors are addressed in the next return, while missing returns and other irregularities require their own assessment.

Can purchase VAT reduce the correction?

Potentially, where the deduction conditions and time limits are met. Valid purchase invoices and the nature of the expenditure must be checked.

Will voluntary correction remove the fines?

Not automatically. It may support a request for remission, but the outcome depends on the infringement, evidence and administrative decision.

Are director withdrawals automatically salary?

No. Their treatment depends on their legal and factual basis. Leaving a transfer on a current account also means recognising a debt to the company.

This article explains a general framework and does not constitute personalised tax advice. Rules change from year to year, and the treatment depends on the exact situation.

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