Playground
Try the API
Real requests against the live API with your own key. Your key goes straight from your browser to the API — it never touches this website's server.
Request
curl "https://tax-api.itensiahr.com/v1/rates/lookup?work_state=CA&pay_date=2026-10-17&include=federal%2Cstate" \
-H "Authorization: Bearer <your key>"Response
Send a request to see the live response here.