Tax deadlines by state for 2026
Every deadline that falls in calendar 2026: the 2025 state return (filed in 2026), the extended deadline, whether the state accepts the federal extension, and the 2026 estimated payment dates. Need a different year? See 2025 →
Federal deadlines in 2026
| 2025 Form 1040 | April 15, 2026 · extension October 15, 2026 |
|---|---|
| 2025 S-corp (1120-S) & partnership (1065) | March 16, 2026 |
| 2025 C-corp (Form 1120) | April 15, 2026 · extension September 15, 2026 |
| 2026 estimated payments (1040-ES) | April 15, 2026 · June 15, 2026 · September 15, 2026 · January 15, 2027 |
Source: IRS Publication 509 and Form 1040-ES, irs.gov.
All 51 jurisdictions' installment dates, vouchers and safe harbors in one table: state estimated tax payment dates for 2026.
Deadlines by state
- AlabamaApril 15, 2026
- Alaska
- ArizonaApril 15, 2026
- ArkansasApril 15, 2026
- CaliforniaApril 15, 2026
- ColoradoApril 15, 2026
- ConnecticutApril 15, 2026
- DelawareApril 30, 2026
- District of ColumbiaApril 15, 2026
- Florida
- GeorgiaApril 15, 2026
- HawaiiApril 20, 2026
- IdahoApril 15, 2026
- IllinoisApril 15, 2026
- IndianaApril 15, 2026
- IowaApril 30, 2026
- KansasApril 15, 2026
- KentuckyApril 15, 2026
- LouisianaMay 15, 2026
- MaineApril 15, 2026
- MarylandApril 15, 2026
- MassachusettsApril 15, 2026
- MichiganApril 15, 2026
- MinnesotaApril 15, 2026
- MississippiApril 15, 2026
- MissouriApril 15, 2026
- MontanaApril 15, 2026
- NebraskaApril 15, 2026
- Nevada
- New Hampshire
- New JerseyApril 15, 2026
- New MexicoApril 15, 2026
- New YorkApril 15, 2026
- North CarolinaApril 15, 2026
- North DakotaApril 15, 2026
- OhioApril 15, 2026
- OklahomaApril 15, 2026
- OregonApril 15, 2026
- PennsylvaniaApril 15, 2026
- Rhode IslandApril 15, 2026
- South CarolinaApril 15, 2026
- South Dakota
- Tennessee
- Texas
- UtahApril 15, 2026
- VermontApril 15, 2026
- VirginiaMay 1, 2026
- Washington
- West VirginiaApril 15, 2026
- WisconsinApril 15, 2026
- Wyoming
Which states accept the federal extension?
Full detail for every state, with forms and sources: which states accept the federal extension in 2026.
The extension is to file, not to pay, in every state: pay what you expect to owe by the original date. The rule column comes from each state's revenue department; the state page carries the source link and the form.
| State | Return due | Extended to | Federal extension accepted? | First 2026 estimate |
|---|---|---|---|---|
| Alabama | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Arizona | April 15, 2026 | October 15, 2026 | Only in some cases | April 15, 2026 |
| Arkansas | April 15, 2026 | November 15, 2026 | Yes | April 15, 2026 |
| California | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Colorado | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Connecticut | April 15, 2026 | October 15, 2026 | Only in some cases | April 15, 2026 |
| Delaware | April 30, 2026 | October 15, 2026 | No | April 30, 2026 |
| District of Columbia | April 15, 2026 | October 15, 2026 | No | April 15, 2026 |
| Georgia | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Hawaii | April 20, 2026 | October 20, 2026 | Not the federal one | April 20, 2026 |
| Idaho | April 15, 2026 | October 15, 2026 | Not the federal one | Not required |
| Illinois | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Indiana | April 15, 2026 | November 16, 2026 | Yes | April 15, 2026 |
| Iowa | April 30, 2026 | October 31, 2026 | Not the federal one | April 30, 2026 |
| Kansas | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Kentucky | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Louisiana | May 15, 2026 | November 15, 2026 | Not needed | April 15, 2026 |
| Maine | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Maryland | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Massachusetts | April 15, 2026 | October 15, 2026 | Not the federal one | April 15, 2026 |
| Michigan | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Minnesota | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Mississippi | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Missouri | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Montana | April 15, 2026 | October 15, 2026 | Not needed | April 15, 2026 |
| Nebraska | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| New Jersey | April 15, 2026 | October 15, 2026 | Only in some cases | April 15, 2026 |
| New Mexico | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| New York | April 15, 2026 | October 15, 2026 | No | April 15, 2026 |
| North Carolina | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| North Dakota | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Ohio | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Oklahoma | April 15, 2026 | October 15, 2026 | Only in some cases | April 15, 2026 |
| Oregon | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Pennsylvania | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Rhode Island | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| South Carolina | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Utah | April 15, 2026 | October 15, 2026 | Not the federal one | Not required |
| Vermont | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Virginia | May 1, 2026 | November 1, 2026 | Not needed | May 1, 2026 |
| West Virginia | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
| Wisconsin | April 15, 2026 | October 15, 2026 | Yes | April 15, 2026 |
Frequently asked questions
When are state taxes due in 2026?
Most states file the 2025 individual return on the federal date, April 15, 2026. Delaware (April 30), Hawaii (April 20), Iowa (April 30), Louisiana (May 15), Virginia (May 1) set their own dates. Nine states have no individual income tax. A deadline that lands on a weekend or holiday moves to the next business day.
Which states accept the federal extension automatically?
Most do, either by honoring Form 4868 or by granting everyone an automatic extension, but a handful require their own form. The extension table below lists each state's rule with a link to the state source. In every state the extension is to file, not to pay.
When are state estimated tax payments due in 2026?
Most states follow the federal 2026 schedule of April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027. Virginia's first installment is May 1, Hawaii and Iowa use different days, and some states do not require estimates at all. See the estimated payments table for every state.
Do all states have an income tax deadline?
No. Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire don't levy a broad individual income tax, so there's no state individual return to file, though federal deadlines still apply.
Dates are the statutory deadlines that fall in 2026 and move to the next business day when they land on a weekend or holiday. Always confirm current dates with your state's Department of Revenue or the IRS. This is general information, not tax advice.