Belgian fiduciaires and accounting firms have more software options than ever — but "best" depends entirely on which compliance requirements and infrastructure choices actually matter for your practice. Here's what to evaluate, and why full-stack compliance on dedicated infrastructure changes the calculation.
The compliance stack, in full
A genuinely complete Belgian accounting platform needs to handle three separate compliance systems correctly, not just one:
- Intervat — VAT declarations, schema-validated against the current official format before submission.
- DmfA — social security filings, correctly handling both PC 200 and PC 112 joint committees with proper contribution rates.
- Belcotax — annual tax fiche filings (281.10 / 281.20) in the required format.
Many platforms handle one or two of these well and treat the third as an afterthought or manual export. Ask specifically about all three before assuming a platform is "compliant."
Infrastructure: shared platform vs dedicated servers
Most accounting SaaS platforms run on shared, multi-tenant cloud infrastructure — cost-efficient for the vendor, but your firm's client data sits logically separated (not physically isolated) from every other customer on the platform. Dedicated infrastructure — separate servers per customer — is a meaningfully different security posture, particularly for firms handling sensitive financial and payroll data.
Questions worth asking any vendor
- Does it handle Intervat, DmfA, and Belcotax, or just one of the three?
- Is infrastructure shared/multi-tenant, or dedicated per customer?
- Where is data legally hosted, and under which country's jurisdiction?
- Does automation replace the accountant's final review, or support it?
See the platform
The Accounting Bundle handles the full Belgian compliance stack on dedicated, EU-hosted infrastructure — built for fiduciaires, not adapted from a generic template.
Explore the Accounting Bundle