State Tax Agencies
- AK – Alaska Department of Revenue
- AL – Alabama Department of Revenue
- AR – Arkansas Department of Finance and Administration
- AZ – Arizona Department of Revenue
- CA – California Employment Development Department (EDD – withholding taxes)
- CA – California Franchise Tax Board (FTB – individual income and corporate taxes)
- CA – California State Board of Equalization (BOE – property, sales and excise tax)
- CO – Colorado Department of Revenue
- CT – Connecticut Department of Revenue Services
- DC – District of Columbia Office of the Chief Financial Officer
- DE – Delaware Division of Revenue
- FL – Florida Department of Revenue
- GA – Georgia Department of Revenue
- HI – Hawaii Department of Taxation
- IA – Iowa Department of Revenue
- ID – Idaho State Tax Commission
- IL – Illinois Department of Revenue
- IN – Indiana Department of Revenue
- KS – Kansas Department of Revenue
- KY – Kentucky Department of Revenue
- LA – Louisiana Department of Revenue
- MA – Massachusetts Department of Revenue
- MD – Comptroller of Maryland
- MI – Michigan Department of Treasury
- MN – Minnesota Department of Revenue
- MO – Missouri Department of Revenue
- MS – Mississippi Department of Revenue
- MT – Montana Department of Revenue
- NC – North Carolina Department of Revenue
- ND – North Dakota Office of State Tax Commissioner
- NE – Nebraska Department of Revenue
- NH – New Hampshire Department of Revenue Administration
- NJ – New Jersey Department of The Treasury, Division of Revenue
- NJ – New Jersey Department of The Treasury, Division of Taxation
- NM – New Mexico Taxation and Revenue Department
- NV – Department of Taxation
- NY – New York State Department of Taxation and Finance
- NYC – New York City Department of Finance
- OH – Ohio Department of Taxation
- OK – Oklahoma Tax Commission
- OR – Oregon Department of Revenue
- PA – Pennsylvania Department of Revenue
- PR – Puerto Rico Departamento de Hacienda
- RI – Rhode Island Department of Revenue, Division of Taxation
- SC – South Carolina Department of Revneue
- SD – South Dakota Department of Revenue and Regulation
- TN – Tennessee Department of Revenue
- TX – Texas Comptroller of Public Accounts
- UT – Utah State Tax Commission
- VA – Virginia Department of Taxation
- VT – Vermont Agency of Administration, Department of Taxation
- WA – Washington Department of Revenue
- WI – Wisconsin Department of Revenue
- WV – West Virginia Department of Revenue
- WY – Wyoming Department of Revenue