State Sales Tax Number Verification AL License Verification – Alabama AZ License Verification – Arizona CA Permit Verification – California CO License Verification – Colorado FL Seller Certificate Verification – Florida HI Tax Licenses Database – Hawaii ID Permit Validation – Idaho IL Tax Registration Inquiry – Illinois KS Exemption Certificate Verification – Kansas LA Resale Certificate Validation – Louisiana MD Verification of Tax Acct. Numbers – Maryland MN Tax ID Inquiry – Minnesota MS Sales Tax Acct No. Inquiry – Mississippi NC Registration Verification of Varying Types – North Carolina ND Sales & Use Tax Permit Inquiry – North Dakota OH Direct Pay Accounts (PDF) – Ohio OK Permit Lookup System – Oklahoma TX Taxpayer Info. Database – Texas WA Business Records Database – Washington MA Resale Certificate Verification – Massachusetts
