
Bookkeeping obligations: what must your business do?
Your bookkeeping obligations depend on the legal form and size of your business. Find out which books to keep, how annual accounts work, which tax filings apply and when.
Our guides explain the rules for running a business in Belgium. Companies, VAT, financial plans, cash flow: every article gets straight to the point. A few guides also cover France.

Your bookkeeping obligations depend on the legal form and size of your business. Find out which books to keep, how annual accounts work, which tax filings apply and when.

A correct corporate tax return starts well before you file it on Biztax. Here are the rates, the path from accounting result to taxable profit, the deadlines and the advance payments.

The periodic VAT return sums up your taxable transactions. Find out who files it, how often, by which date, how to complete it on Intervat and how to avoid fines.

NBB filing of your annual accounts follows a strict calendar. Find out who must file, which format applies, the deadlines, the fees, the late surcharges and the right habits.

A good Belgian accountant saves you time and secures your filings. Find out how to check credentials, compare offers, ask the right questions and spot warning signs.

Since 1 January 2026, structured electronic invoicing has applied between VAT-registered businesses in Belgium. Here are the timeline, how Peppol works, the exceptions and a practical action plan.
Each guide answers one precise question. Categories group related topics, and the blog topics page helps you explore a broad subject. Figures follow the rules in force in Belgium or France on the publication date. Always check your situation with a professional before a major decision. To put numbers on it, our free calculators work out a cost, a tax or a break-even point. Juristelo then assembles those calculations into a complete financial plan, ready for your bank or notary.