BelastZen - 2026 Pricing, Features, Reviews & Alternatives

BelastZen is an accounting and tax filing software platform designed for Dutch self-employed professionals, small and medium-sized enterprises and accounting firms in the Netherlands. It consolidates bookkeeping workflows and tax submission processes within a unified interface. The software aligns with Dutch regulatory standards by supporting standard business reporting routines and PKIoverheid certification requirements.

The solution offers full double-entry bookkeeping in compliance with the Dutch Referentie Grootboekschema standard. Real-time balance sheets and profit-and-loss statements are available within the system. Valid XBRL and iXBRL documents are generated automatically from recorded transactions for submission to the Belastingdienst. Tax filings are transmitted securely via Digipoort with PKIoverheid certificate and SOAP protocol. The invoicing component allows creation, distribution and tracking of invoices with automatic VAT calculation and posting. Relationship management tools maintain client and supplier records to support ongoing accounting activities. Live dashboards present insights into revenues, expenses, VAT balances and cash flow forecasts.

Compliance with privacy regulations is ensured through EU-based data storage, AES encryption and comprehensive audit logging. The system retains data on servers located within the European Union in accordance with GDPR and AVG requirements.

The platform supports transaction imports from bank statements and manual entry with built-in VAT computation and ledger posting. Direct connections to bank account details facilitate reconciliation of financial data. Payment workflows are managed through integration with common processing services including payment cards and local digital payment schemes. Government channels such as eHerkenning authentication and the Digipoort gateway are utilized for secure communication with tax authorities.