| Alabama | Alabama Department of Revenue |
| Alaska | Alaska Department of Revenue |
| Arizona | Arizona Department of Revenue |
| Arkansas | Arkansas Department of Finance and Administration |
| California | California State Board of Equalization |
| California | California Franchise Tax Board |
| Colorado | Colorado Department of Revenue |
| Connecticut | Connecticut Department of Revenue Services |
| Delaware | Delaware Division of Revenue |
| Florida | Florida Department of Revenue |
| Georgia | Georgia Department of Revenue |
| Hawaii | Hawaii Department of Taxation |
| Idaho | State Tax Commission |
| Illinois | Illinois Department of Revenue |
| Indiana | Indiana Department of Revenue |
| Iowa | Iowa Department of Revenue and Finance |
| Kansas | Kansas Department of Revenue |
| Kentucky | Kentucky Revenue Cabinet Taxpayer Service Center |
| Louisiana | Louisiana Department of Revenue |
| Maine | Maine Revenue Services |
| Maryland | Comptroller of Maryland |
| Massachusetts | Commonwealth of Massachusetts |
| Michigan | Michigan Department of Treasury |
| Minnesota | Minnesota Department of Revenue |
| Mississippi | Mississippi Tax Commission |
| Missouri | Missouri Department of Revenue |
| Montana | Department of Revenue |
| Nebraska | Nebraska Department of Revenue |
| Nevada | Nevada Department of Taxation |
| New Hampshire | New Hampshire Department of Revenue Administration |
| New Jersey | New Jersey Department of Treasury Division of Taxation |
| New Mexico | New Mexico Taxation and Revenue |
| New York | New York Department of Taxation & Finance |
| North Carolina | North Carolina Department of Revenue |
| North Dakota | North Dakota State Tax Department |
| Ohio | Ohio Department of Taxation |
| Oklahoma | Oklahoma Tax Commission |
| Oregon | Oregon Department of Revenue |
| Pennsylvania | Pennsylvania Department of Revenue |
| Rhode Island | Rhode Island Division of Taxation |
| South Carolina | South Carolina Department of Revenue |
| South Dakota | South Dakota Department of Revenue and Regulation |
| Tennessee | Tennessee Department of Revenue |
| Texas | Window on State Government–Texas Taxes |
| Utah | Utah State Tax Commission |
| Vermont | Vermont Department of Taxes |
| Virginia | Virginia Department of Taxation |
| Washington | Washington Department of Revenue |
| Washington D.C. | Washington D.C. Office of Tax and Revenue |
| West Virginia | West Virginia State Tax Department |
| Wisconsin | Wisconsin Department of Revenue |
| Wyoming | Wyoming Department of Revenue |