Which states accept the federal tax extension in 2026?
The short answer
Filing federal Form 4868 extends your state return in 21 states. 9 states extend everyone automatically with no form at all. 5 states ignore the federal extension but grant their own if you pay by the original date, 4 accept it only in some cases, and 3 require their own form. In every state the payment is still due on the original date.
Yes: the federal extension is honored (21)
File Form 4868 and the state extends too. Most of these want a copy attached or a box checked on the state return; some need a state payment voucher if you owe.
| State | Return due | Extended to | State form | How to get it | Source |
|---|---|---|---|---|---|
| Arkansas | April 15, 2026 | November 15, 2026 | Form AR1055-IT | If you filed a federal extension you do not file AR1055-IT; check the extension box on the front of the Arkansas return when you file (AR1055-IT is for a state-only extension or extension payment).Interest and any applicable failure-to-pay penalty are charged from the original due date until the return is filed and paid. | dfa.arkansas.govread September 3, 2026 |
| Georgia | April 15, 2026 | October 15, 2026 | Form IT-303 | If you have a federal extension, attach a copy of Form 4868 or the IRS confirmation letter to the Georgia return; file Form IT-303 only if you did not get a federal extension.The extension does not extend the date for paying the tax; pay by the original due date to avoid late-payment penalty and interest. | dor.georgia.govread September 3, 2026 |
| Indiana | April 15, 2026 | November 16, 2026 | Form IT-9 | If you have a federal extension you automatically have an Indiana extension; otherwise request one online via INTIME or mail Form IT-9 by April 15.Interest is added to any amount owed after April 15, 2026; penalty is waived if at least 90% is paid by April 15 and the balance is paid by November 16, 2026. | in.govread September 3, 2026 |
| Kansas | April 15, 2026 | October 15, 2026 | None | File federal Form 4868 and enclose a copy with Form K-40 when filed; make any extension payment with Form K-40V (check the extension box) by April 15, 2026.Not an extension to pay; 90% of the tax must be paid by April 15, 2026 to avoid a penalty and any remaining balance accrues interest. | ksrevenue.govread September 3, 2026 |
| Kentucky | April 15, 2026 | October 15, 2026 | Form 740EXT | If you filed a federal extension, attach federal Form 4868 to the Kentucky return; file Form 740EXT (paper or electronic) only if you owe tax with the extension or want a Kentucky-only extension.Filing 740EXT does not extend the time to pay; interest and penalties apply to tax paid after April 15, 2026. | revenue.ky.govread September 3, 2026 |
| Maryland | April 15, 2026 | October 15, 2026 | Form PV | If no tax is due and you requested a federal extension, do nothing; if no tax is due and no federal extension, request the Maryland extension online; if tax is due, file Form PV with payment by April 15.The extension does not extend the time to pay; payment of the expected tax is required with Form PV by April 15. | services.marylandcomptroller.govread September 3, 2026 |
| Michigan | April 15, 2026 | October 15, 2026 | Form 4 | With a federal extension, Treasury extends to the federal due date; send any payment with a copy of federal Form 4868 by April 15 and include a copy of the federal extension with the MI-1040. File Form 4 with payment only if you have no federal extension.Only an extension to file; interest (prime plus 1%) runs from the original due date and a 10% or greater penalty may apply if the balance is not paid with the extension. | michigan.govread September 3, 2026 |
| Mississippi | April 15, 2026 | October 15, 2026 | None | File federal Form 4868 and attach a copy to the Mississippi return; if you owe, remit payment with Form 80-106 voucher by April 15.The extension is for filing only; tax due should be paid by April 15, 2026 to avoid penalty and interest. | dor.ms.govread September 3, 2026 |
| Missouri | April 15, 2026 | October 15, 2026 | Form MO-60 | If you have a federal extension and expect no additional tax (or a refund), enclose a copy of the federal extension with the Missouri return; file Form MO-60 with payment only if you owe or want a Missouri-only extension.An extension does not extend the time to pay; additions to tax of 5% plus interest apply to tax not paid by the original due date. | dor.mo.govread September 3, 2026 |
| Nebraska | April 15, 2026 | October 15, 2026 | Form 4868N | Attach a copy of federal Form 4868 (or a schedule with your federal confirmation number) to Form 1040N when filed; file Form 4868N by April 15 only if you are making a tentative payment or did not request a federal extension.An extension does not stop interest from accruing on unpaid tax from the original due date. | revenue.nebraska.govread September 3, 2026 |
| New Mexico | April 15, 2026 | October 15, 2026 | Form RPD-41096 | If you obtained the federal automatic extension nothing is filed with New Mexico; submit Form RPD-41096 only for a state-only extension or more time than the federal extension allows, and pay any tax with the PIT-EXT payment voucher.An extension does not extend the time to pay; interest accrues from the original due date on any tax due. | tax.newmexico.govread September 3, 2026 |
| North Carolina | April 15, 2026 | October 15, 2026 | Form D-410 | If you received the automatic federal extension, fill in the Federal Extension circle on Form D-400 when you file; otherwise file Form D-410 (online or paper) by April 15, 2026.An extension does not extend the time to pay; interest and penalties apply to tax not paid by the original due date. | ncdor.govread September 3, 2026 |
| North Dakota | April 15, 2026 | October 15, 2026 | Form 101 | File federal Form 4868; do not notify the state or attach a copy, but check the extension box on Form ND-1 when you file. Form 101 is only for a state-only or additional extension.An extension is to file only; interest and possible penalty apply to tax not paid by April 15. | tax.nd.govread September 3, 2026 |
| Ohio | April 15, 2026 | October 15, 2026 | None | File federal Form 4868; when you file the Ohio IT 1040, check the federal-extension box and include a copy; pay any tax with the Ohio Universal Payment Coupon (OUPC) or online by April 15.Even with a filing extension, all tax payments are due by April 15, 2026. | tax.ohio.govread September 3, 2026 |
| Oregon | April 15, 2026 | October 15, 2026 | None | If you filed federal Form 4868, do not request an Oregon extension; mark the Extension filed box on your Oregon return. To pay, use Revenue Online or Form OR-40-V (see Publication OR-40-EXT).An extension to file is not an extension to pay; make any extension payment by April 15, 2026 to avoid interest and penalties. | oregon.govread September 3, 2026 |
| Pennsylvania | April 15, 2026 | October 15, 2026 | Form REV-276 | With a federal extension and no PA tax owed, do nothing; if you owe or lack a federal extension, pay and request the extension on myPATH or file Form REV-276 with payment by April 15.An extension does not extend the time for full payment and does not preclude penalty and interest for underpayment. | pa.govread September 3, 2026 |
| Rhode Island | April 15, 2026 | October 15, 2026 | Form RI-4868 | If no payment is required and you filed a proper federal extension covering the same period, skip RI-4868 and attach a copy of federal Form 4868 to the front of the Rhode Island return; otherwise file RI-4868 with payment (online portal or mail) by April 15.Tax due must be paid by April 15, 2026; the extension is to file, not to pay, and interest and penalty apply to late payment. | tax.ri.govread September 3, 2026 |
| South Carolina | April 15, 2026 | October 15, 2026 | Form SC4868 | With a federal extension and no tax due, simply mark the Extension box on the SC1040 (a copy of the federal extension is accepted); if you owe, pay on MyDORWAY (which auto-submits the request) or file SC4868 with payment by April 15.The extension allows more time to file but not to pay; penalty and interest are charged on tax not paid by April 15. | dor.sc.govread September 3, 2026 |
| Vermont | April 15, 2026 | October 15, 2026 | Form IN-151 | With a federal extension no separate Vermont request is needed unless you are making an extension payment, in which case file Form IN-151 with payment (or use myVTax) by April 15.The extension does not extend the time to pay; any tax due must be paid by the April deadline. | tax.vermont.govread September 3, 2026 |
| West Virginia | April 15, 2026 | October 15, 2026 | Schedule L (WV4868) | Enter the federal extension date on page 1 of IT-140 (or write Federal Extension Granted plus confirmation number) and enclose a copy of Form 4868; file WV Schedule L only for a state-only extension or to pay tax due.This is not an extension to pay; tax not paid by April 15 accrues interest and penalties. | tax.wv.govread September 3, 2026 |
| Wisconsin | April 15, 2026 | October 15, 2026 | None | Attach a copy of federal Form 4868 (or a statement electing the federal extension provision) to the Wisconsin return; no separate state form exists and you can use the federal provision even if you did not need a federal extension.You owe interest on any tax not paid by April 15, 2026 even with an extension to file. | revenue.wi.govread September 3, 2026 |
Not needed: the state extends everyone (9)
No form at all. The extension is automatic whether or not you filed federally, but the payment is still due on the original date.
| State | Return due | Extended to | State form | How to get it | Source |
|---|---|---|---|---|---|
| Alabama | April 15, 2026 | October 15, 2026 | None | Nothing to file; the six-month extension is granted automatically, and any payment is made with Form 40V or through My Alabama Taxes.There is no extension for payments; pay any tax due with Form 40V by April 15 or interest and applicable penalties accrue. | revenue.alabama.govread September 3, 2026 |
| California | April 15, 2026 | October 15, 2026 | None | Nothing to file; if you owe, pay electronically or mail Payment for Automatic Extension for Individuals (FTB 3519) by April 15, 2026.An extension to file is not an extension to pay; pay by April 15, 2026 to avoid penalties and interest. | ftb.ca.govread September 3, 2026 |
| Colorado | April 15, 2026 | October 15, 2026 | None | Nothing to file; pay any balance through Revenue Online or with Extension Payment Form DR 0158-I by April 15.90% of the tax liability must be paid by April 15 to avoid penalties; any remaining balance is subject to interest only. | tax.colorado.govread September 3, 2026 |
| Illinois | April 15, 2026 | October 15, 2026 | None | Nothing to file; pay any tentative tax with Form IL-505-I or through MyTax Illinois by April 15, 2026.Extensions do not extend the time to pay; use Form IL-505-I to pay tax owed by April 15, 2026 to avoid penalty and interest. | tax.illinois.govread September 3, 2026 |
| Louisiana | May 15, 2026 | November 15, 2026 | None | Nothing to file; the extension is automatic under Act 410 of 2022, and any payment can be made through LaTAP or the online extension-payment page.The automatic extension applies only to filing; payments made after May 15 are subject to penalties and interest. | revenue.louisiana.govread September 3, 2026 |
| Maine | April 15, 2026 | October 15, 2026 | None | Nothing to file; pay any estimated tax via the Maine Tax Portal or the extension payment voucher by April 15.To avoid late-payment penalties you must pay at least 90 percent of the tax owed by the original due date; interest accrues on unpaid tax. | maine.govread September 3, 2026 |
| Minnesota | April 15, 2026 | October 15, 2026 | None | Nothing to file; pay any tax owed by April 15 (e-Services or payment voucher).Tax owed must be paid by the regular April 15 due date to avoid penalties and interest, even with an extension to file. | revenue.state.mn.usread September 3, 2026 |
| Montana | April 15, 2026 | October 15, 2026 | None | Nothing to file; make any extension payment through the TransAction Portal (TAP) or with the Montana Individual Income Tax Payment Voucher (Form IT).Extensions are for filing only; tax must be paid by the due date to avoid penalties and interest. | mtrevenue.govread September 3, 2026 |
| Virginia | May 1, 2026 | November 1, 2026 | None | Nothing to file; if you owe, make an extension payment by May 1 electronically (eForms or Individual Online Services) or with Form 760IP.You must pay any tentative tax due by May 1; if additional tax is due when you file, penalty and interest may be owed. | tax.virginia.govread September 3, 2026 |
Not the federal one: automatic if you pay (5)
These states do not accept Form 4868. Their own extension is automatic when you have paid the required share of the tax by the original date.
| State | Return due | Extended to | State form | How to get it | Source |
|---|---|---|---|---|---|
| Hawaii | April 20, 2026 | October 20, 2026 | None | Nothing to file; pay any properly estimated tax by April 20, 2026 (Form N-200V payment voucher or Hawaii Tax Online).The automatic extension applies only if you are due a refund or you pay the properly estimated tax by April 20, 2026; the extension does not give more time to pay. | tax.hawaii.govread September 3, 2026 |
| Idaho | April 15, 2026 | October 15, 2026 | None | Nothing to file; the extension is valid if prepayments equal 80% of the current-year tax or 100% of last year's tax by April 15 (use Form 51 worksheet/voucher to pay any shortfall).A valid extension avoids the late-filing penalty only; interest is owed on any tax not paid by April 15 and penalties apply if prepayments fall short. | tax.idaho.govread September 3, 2026 |
| Iowa | April 30, 2026 | October 31, 2026 | None | Nothing to file; pay at least 90% of the tax by April 30 (Iowa Individual Income Tax Payment Voucher 96-048 or online) and you automatically have until October 31 to file.If 90% of the correct tax is not paid by the due date, penalty and interest apply; interest accrues on any tax unpaid after the original due date. | revenue.iowa.govread September 3, 2026 |
| Massachusetts | April 15, 2026 | October 15, 2026 | Form M-4868 | No form is needed if at least 80% of the tax (or no tax) is paid by April 15; if a payment is needed to reach 80%, pay through MassTaxConnect (mandatory for $5,000 or more) or with Form M-4868.The extension is void unless at least 80% of the tax is paid by April 15, 2026; late-payment and late-return penalties are 1% per month up to 25%, plus interest. | mass.govread September 3, 2026 |
| Utah | April 15, 2026 | October 15, 2026 | None | Nothing to file; prepay any required amount by April 15 via Taxpayer Access Point (TAP) or Form TC-546 coupon.Penalties are assessed unless you prepay by April 15 the lesser of 90% of 2025 tax or 100% of 2024 tax; interest accrues on unpaid tax. | incometax.utah.govread September 3, 2026 |
Only in some cases (4)
The federal extension counts only when a condition is met, usually that no additional state tax is due or a percentage has been paid.
| State | Return due | Extended to | State form | How to get it | Source |
|---|---|---|---|---|---|
| Arizona | April 15, 2026 | October 15, 2026 | Form 204 | File federal Form 4868 and pay at least 90% of your Arizona tax by April 15, 2026 (Form 204 or AZTaxes.gov for the payment); check the extension box on the Arizona return. File Form 204 for a state-only extension.The federal extension counts for Arizona only if at least 90% of the Arizona tax is paid by April 15, 2026; otherwise a penalty of one half of one percent per 30 days applies, up to 25%. | azleg.govread September 3, 2026 |
| Connecticut | April 15, 2026 | October 15, 2026 | Form CT-1040 EXT | If you expect no additional Connecticut tax and you requested a federal extension, do nothing; otherwise file Form CT-1040 EXT (electronically through myconneCT or on paper) with payment by April 15, 2026.You will be subject to interest and may be subject to a penalty on any tax not paid by the original due date. | portal.ct.govread September 3, 2026 |
| New Jersey | April 15, 2026 | October 15, 2026 | Form NJ-630 | No NJ-630 is needed if 80% of the tax is paid by April 15 and you applied for a federal extension (enclose a copy of the federal application with a paper return); otherwise file NJ-630 online at nj.gov/taxation or by mail with payment by April 15, 2026.At least 80% of the final tax must be paid by April 15, 2026 or the extension is retroactively denied and penalty and interest run from the original due date. | nj.govread September 3, 2026 |
| Oklahoma | April 15, 2026 | October 15, 2026 | Form 504-I | With a federal extension and no additional Oklahoma tax due, just provide a copy of the federal extension with the Oklahoma return; file Form 504-I with payment if you owe Oklahoma tax or have no federal extension.The extension is valid only if 90% of the tax liability is paid by the original due date; a 5% penalty may apply if less than 90% is paid. | oklahoma.govread September 3, 2026 |
No: file the state's own request (3)
A copy of Form 4868 is not accepted. File the state form or the online request by the original due date.
| State | Return due | Extended to | State form | How to get it | Source |
|---|---|---|---|---|---|
| Delaware | April 30, 2026 | October 15, 2026 | Form PIT-EXT | File Form PIT-EXT (online at tax.delaware.gov or by mail) with any balance due by April 30, 2026.There is no extension of time for payment; interest accrues at 1/2% per month on unpaid tax from the original due date. | revenuefiles.delaware.govread September 3, 2026 |
| District of Columbia | April 15, 2026 | October 15, 2026 | Form FR-127 | File Form FR-127 with payment on or before April 15 (certain filers can request the extension through MyTax.DC.gov).Any tax due must be paid in full with the extension request; penalty and interest accrue on tax unpaid after the original due date. | otr.cfo.dc.govread September 3, 2026 |
| New York | April 15, 2026 | October 15, 2026 | Form IT-370 | File Form IT-370 online (Tax Department website or tax software) or on paper by April 15, 2026, paying any tax due.If you owe tax you must make your extension payment by the original due date; interest and penalties apply to late payment. | tax.ny.govread September 3, 2026 |
States with no individual income tax
Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming have no state individual return to extend. Your federal deadline is April 15, 2026, extended to October 15, 2026 with Form 4868.
Frequently asked questions
Does a federal extension automatically extend my state return in 2026?
In 21 states, yes: the state honors Form 4868. 9 states extend everyone without any form. 5 states do not accept the federal extension but grant their own automatically if the required payment is made by the original date. 3 require their own form, and 4 accept the federal extension only in some cases. Every state is listed above with its source.
Does a state extension give me more time to pay?
No, in every state. An extension moves the filing deadline, not the payment. Most states charge interest from the original due date, and several add a penalty unless a percentage of the tax (usually 80 to 90 percent) was paid on time.
Which states do not accept the federal extension form?
Delaware, District of Columbia, New York, Hawaii, Idaho, Iowa, Massachusetts, Utah. Each has its own form or its own automatic rule; the table shows which.
Which states have a later extended deadline than October 15?
Arkansas (November 15, 2026), Hawaii (October 20, 2026), Indiana (November 16, 2026), Iowa (October 31, 2026), Louisiana (November 15, 2026), Virginia (November 1, 2026). The others match the federal October 15 date.
Rules are for individual income tax returns and move to the next business day when a date falls on a weekend or holiday. Each row links to the state source it was checked against. Confirm with the state before relying on a rule. This is general information, not tax advice.