Quick Start
Create an account, generate an API key, send your first VAT calculation request, and find the next VAT Engine docs to explore in about five minutes.
1. Create an Account
Sign up at VAT Engine to access the dashboard.
2. Generate an API Key
Navigate to Dashboard → API Keys and create a new key. Copy the plaintext value immediately — it is shown only once.
Choose the scope that fits your use case:
| Scope | Access |
|---|---|
full | VAT calculation, rates, transactions, compliance, and source profile management |
calculate-only | POST /v1/vat/calculate only |
read-only | Rates, transactions, compliance reads, and source profile reads |
3. Make Your First Request
curl -X POST https://api.vat-engine.app/v1/vat/calculate \-H "X-API-Key: YOUR_API_KEY" \-H "Content-Type: application/json" \-d '{ "country": "DE", "currency": "EUR", "gross_amount_minor": 11900, "price_includes_vat": true, "tax_class_id": "standard"}'You should receive a 200 OK response with the calculated VAT breakdown:
{
"country": "DE",
"currency": "EUR",
"vat_rate_bps": 1900,
"gross_amount_minor": 11900,
"net_amount_minor": 10000,
"vat_amount_minor": 1900
}4. Explore Further
- Integrations — Connector concepts, shared integration model, and platform-specific setup guides.
- Authentication — Learn about API key management, scopes, and rotation.
- Calculate VAT — Full reference for the calculation endpoint.
- VAT Rates — Look up rates by country and tax class.
- Sources — Manage multi-store source profiles and review unregistered source tags.
Introduction
VAT Engine documentation for EU VAT calculation, rates, tax classes, source profiles, integrations, and OSS/IOSS compliance reporting workflows.
Authentication
Authenticate to VAT Engine with scoped API keys, rotation guidance, rate-limit behavior, and the headers required for every protected endpoint.