VAT Engine helps ecommerce businesses, SaaS teams, and developers calculate EU VAT, track compliance exposure, and prepare reliable reporting data.

Instead of combining tax logic from multiple sources, teams can use one platform for VAT calculations, official rate data, OSS and IOSS monitoring, multi-store transaction reporting, filing preparation, and developer integrations.

What VAT Engine provides

• EU VAT calculation API
  Calculate VAT using destination, customer type, product classification, transaction date, and other relevant evidence.

• Official VAT rate data
  Access current and historical rates backed by the European Commission’s TEDB data.

• Merchant-friendly tax classes
  Map products such as books, food, medicine, accommodation, energy, transport, and repairs to practical tax categories.

• OSS and IOSS workflows
  Track threshold exposure, review cross-border transactions, manage registration context, and prepare reporting summaries.

• SME VAT thresholds
  Look up domestic SME thresholds for all 27 EU member states, including local-currency values.

• Multi-store reporting
  Organize Shopify stores, marketplaces, SaaS channels, and API integrations using managed source profiles.

• Filing preparation
  Review country exposure, VAT-rate mixes, transaction evidence, quarterly summaries, and accountant-oriented reports.

• Shopify integration
  Import and classify order data while preserving source attribution and review evidence.

• Audit and security controls
  Scoped API keys, two-factor authentication, activity logs, rate limiting, transaction evidence, and secure account management.

VAT Engine is currently available in early access while I continue improving onboarding, integrations, and reporting workflows.

I’m especially interested in feedback from ecommerce developers, SaaS founders, agencies, and finance teams:

What would you need to see before trusting VAT Engine for a real store or production integration?