Summer might be around the corner—but sales tax deadlines don’t take time off.
Below is a complete, state-by-state breakdown of May 2026 sales tax due dates, including adjustments for weekends and holidays (notably Memorial Day on May 25, 2026). If a statutory due date falls on a non-business day, it has been shifted according to each state’s rules.
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State-by-State Sales Tax Due Dates: May 2026
| State | Filing Frequency | Day Due | Notes |
|---|---|---|---|
| Alabama | Monthly | May 20 | |
| Alaska | Monthly | June 1 | No statewide sales tax; remote seller returns for local jurisdictions due the last day of the month or next business day |
| Arizona | Monthly | May 20 | |
| Arkansas | Monthly | May 20 | |
| California | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Colorado | Monthly | May 20 | State deadline; most home-rule cities also due on the 20th |
| Connecticut | Monthly | June 1 | Month-end deadline shifts due to weekend |
| District of Columbia | Monthly | May 20 | |
| Florida | Monthly | May 20 | |
| Georgia | Monthly | May 20 | |
| Hawaii (GET) | Monthly | May 20 | |
| Idaho | Monthly | May 20 | |
| Illinois | Monthly | May 20 | |
| Indiana | Early Monthly, Monthly | May 20; June 1 | Early monthly due May 20; standard monthly shifts from month-end due to weekend |
| Iowa | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Kansas | Monthly | May 26 | Since May 25th falls on Memorial Day, due date shifts to next business day |
| Kentucky | Monthly | May 20 | |
| Louisiana | Monthly | May 20 | Parish filings generally align with state deadline |
| Maine | Monthly | May 15 | |
| Maryland | Monthly | May 20 | |
| Massachusetts | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Michigan | Monthly | May 20 | |
| Minnesota | Monthly | May 20 | |
| Mississippi | Monthly | May 20 | |
| Missouri | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Nebraska | Monthly | May 20 | |
| Nevada | Monthly | May 20 | New standardized 20th deadline (effective 2026) |
| New Jersey | Monthly Prepayment | May 20 | Returns filed quarterly; most businesses remit monthly prepayments |
| New Mexico (GRT) | Monthly | May 26 | Since May 25th falls on Memorial Day, due date shifts to next business day |
| New York | Monthly | May 20 | |
| North Carolina | Monthly | May 20 | |
| North Dakota | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Ohio | Monthly + CAT | May 11; May 26 | Ohio CAT due May 11; Monthly return usually due the 23rd, shifted to the 26th due to weekend and Memorial Day |
| Oklahoma | Monthly | May 20 | |
| Pennsylvania | Monthly | May 20 | |
| Rhode Island | Monthly | May 20 | |
| South Carolina | Monthly | May 20 | |
| South Dakota | Monthly | May 20 | |
| Tennessee | Monthly | May 20 | |
| Texas | Franchise tax; Monthly | May 15; May 20 | Texas Franchise tax due May 15; monthly due May 20 |
| Utah | Monthly | June 1 | Month-end deadline shifts due to weekend |
| Vermont | Monthly | May 26 | Since May 25th falls on Memorial Day, due date shifts to next business day |
| Virginia | Monthly | May 20 | |
| Washington | Monthly | May 26 | Since May 25th falls on Memorial Day, due date shifts to next business day |
| West Virginia | Monthly | May 20 | |
| Wisconsin | Early Monthly, Monthly | May 20; June 1 | Early monthly due May 20; monthly due month-end but shifts due to weekend |
| Wyoming | Monthly | June 1 | Month-end deadline shifts due to weekend |
