VATEstimator
Free VAT calculator & API for 67 countries
What is VATEstimator?
Free VAT & sales-tax calculator for 67 countries in 5 languages. Add, remove or reverse VAT, compare rates across countries, and calculate invoice margins — no ads, no signup. For devs: a free JSON rates API (no key) and an embeddable calculator widget you can drop into any site. Rates verified May 2026.
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