Finance — entry 042 of 47
Tax Data
Tax Data validates VAT/tax-ID numbers across 38 countries and returns current tax-rate tables and price conversions for over 130 countries, including US state and Canadian provincial rates, alongside an IP-based rate lookup. Like sibling Bank Data, it runs on APILayer's shared marketplace infrastructure (same `apikey`-header auth, dashboard, and billing) with a persistent 100-requests/month free tier before paid plans kick in.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/tax-data/"><img src="https://greatapis.com/badge/tax-data.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.