Supply the transaction facts
Start with the relevant country, amount, price-inclusion basis, product tax context, and supply date; an API cannot infer those facts safely.
EU VAT developer platform
EU VAT API
VAT Engine gives ecommerce and finance teams a single API surface for VAT calculation, rate lookup, tax-class context, dated requests, and account-owned calculation records.
What this helps you do
Build tax-aware checkout, ERP, marketplace, or reporting workflows without treating a generic percentage table as a compliance system.
- Integer minor-unit calculations for gross, net, and VAT amounts.
- Recorded-window rate lookup by member state, curated tax class, and date.
- Account-scoped transaction and source-profile records for downstream reporting.
- Alpha product: validate results against your business facts and professional advice.
How to use it well
Use one calculation contract
Reuse the same request shape across checkout, imports, and reporting so results retain comparable context.
Store the result with its inputs
Keep the returned rate and date context beside your business record so a later review does not depend on today’s rate.
From a checkout request to a reviewable record
A checkout needs a VAT amount, while finance needs to understand which inputs produced it. Start with a representative transaction before connecting a live checkout.
- Choose the jurisdiction and tax class from your reviewed business facts, then send integer minor units, currency, amount basis, and the supply date.
- Read the returned amounts together with rate_provenance and calculation_provenance. Legacy or unavailable evidence needs its own review; a numeric answer is not a compliance approval.
- Retain the calculation_id beside your business record. Use a stable, non-sensitive source tag if you need channel-level reporting.
A calculation record supports API audit and export. It does not itself commit a sale to OSS monitoring or filing preparation; those workflows use committed supply events.
Build the calculation requestChoose your VAT workflow
VAT Rates API
Resolve official-source rate data by date and tax class.
VAT Calculation API
Calculate gross, net, and VAT amounts in minor units.
Historical Rates API
Inspect the recorded rate row selected for a transaction date.
VAT Tax Classes
Make product-tax assumptions explicit and reviewable.
OSS & IOSS Reporting
Prepare reviewable reporting workflows without filing advice.
Shopify VAT Compliance
Explore the VAT data and review workflow for Shopify.
VAT Calculator
Try the free gross, net, and VAT calculator.
EU VAT Rates
Browse country rate snapshots and observed date context.
Data Methodology
Understand sources, validation, and dated data handling.
Security & Privacy
Review the public safeguards and alpha boundary.
Corrections Policy
Report a public documentation or data issue.