Hello Sales checks resale and exemption certificates against each state's rules. Upload a PDF or a phone photo and get a verdict in seconds: required fields, the state ID's format, expiry, and whether the form matches the state, each with the rule behind it. Texas and Pennsylvania numbers are also checked against state-published registry data. The single-certificate check is free with no account; the full rule-by-rule answer and a dated PDF record come with a work email. Built for companies that sell wholesale and collect certificates from many buyers.
