| State | Filing Deadline |
| Alabama | October 15 |
| Alaska | Does not assess income tax |
| Arizona | April 15 |
| Arkansas | May 17 |
| California | May 17 |
| Colorado | May 17 |
| Connecticut | May 17 |
| Delaware | May 17 |
| District of Columbia | May 17 |
| Florida | Does not assess income tax |
| Georgia | May 17 |
| Hawaii | April 20 |
| Idaho | April 15 |
| Illinois | May 17 |
| Indiana | May 17 |
| Iowa | April 30 |
| Kansas | May 17 |
| Kentucky | May 17 |
| Louisiana | June 15 |
| Maine | May 17 |
| Maryland | July 15 |
| Massachusetts | May 17 |
| Michigan | May 17 |
| Minnesota | May 17 |
| Mississippi | May 17 |
| Missouri | May 17 |
| Montana | May 17 |
| Nebraska | May 17 |
| Nevada | Does not assess income tax |
| New Hampshire | April 15 |
| New Jersey | May 17 |
| New Mexico | May 17 |
| New York | May 17 |
| North Carolina | May 17 |
| North Dakota | May 17 |
| Ohio | May 17 |
| Oklahoma | June 15 |
| Oregon | May 17 |
| Pennsylvania | May 17 |
| Rhode Island | May 17 |
| South Carolina | May 17 |
| South Dakota | Does not assess income tax |
| Tennessee | May 17 |
| Texas | Does not assess income tax |
| Utah | May 17 |
| Vermont | May 17 |
| Virginia | May 17 |
| Washington | Does not assess income tax |
| West Virginia | May 17 |
| Wisconsin | May 17 |
| Wyoming | Does not assess income tax |