VATlayer vs Vatstack

VATlayer is a REST-based JSON API for checking EU VAT numbers, finding VAT rates, and calculating VAT-compliant prices. Its validation endpoint can return company information for a VAT number. The rate endpoint identifies a country from a two-letter code, a supplied IP address, or the client IP address. Price calculations can also work backward from an amount that already includes VAT. VAT information covers 28 EU member states and draws on multiple data sources, including European Commission databases. Results are provided in real time, with an average response time around 0.50 seconds. The API reports uptime around 99.9%, though public uptime statistics are not offered. The Free plan allows 100 requests per month for non-commercial use with limited functionality. Paid plans start at $9.99/mo and include commercial use. Usage notices arrive by email and dashboard at 75%, 90%, and 100% of the monthly allowance; overage fees apply after it is reached. Paid customers can access the API using 256-bit HTTPS encryption.

Vatstack is a VAT API for businesses selling telecommunications, broadcasting and electronic services to customers around the world. It provides rates for domestic and cross-border sales, updating them when government changes take effect. The API can calculate VAT-inclusive or VAT-exclusive prices, determine customer location from an IP address or billing address, verify VAT numbers for exemption, and adjust rates for some digital products such as ebooks. Real-time VAT and GST checks cover the 27 EU member states, Australia, Norway, Singapore, Switzerland and the United Kingdom. EU and UK checks include a consultation number, and validation records are stored in the cloud and replicated between EU data centers on AWS. Users can import a CSV for bulk checks. Vatstack compiles VAT OSS and EC Sales List reports using European Central Bank exchange rates, and integrates with Stripe to sync invoices, location evidence and tax IDs and to adjust reports after refunds. A free plan is available; paid plans start at $15/mo.