IRS Tax Deadlines 2026 & 2027
All key IRS deadlines for 2026 and 2027 — annual return filing (April 15), quarterly estimated tax payments (April 15 / June 15 / September 15 / January 15), the October 15 extension deadline, plus IRA, HSA, and 401(k) contribution deadlines, plus year-end RMDs.
Next deadline
401(k) Contribution Deadline
December 31, 2026 — 54 days away
Then
Q4 2026 Estimated Tax Payment Due
January 15, 2027 — 69 days away
What do you need to do?
Go straight from the calendar to the calculation that matches your deadline.
Q4 2025 Estimated Tax Payment Due
Fourth quarter estimated tax payment for the 2025 tax year is due.
Calculate this payment →W-2 and 1099 Forms Due to Employees/Contractors
Employers must send W-2 forms and businesses must send 1099-NEC forms by this date (January 31 falls on a Saturday, so the deadline bumps to the next business day).
Find the right tax form →2025 Tax Return Filing Deadline
Deadline to file your 2025 federal income tax return or request a six-month automatic extension. Any taxes owed are still due by April 15.
Plan filing or an extension →Q1 2026 Estimated Tax Payment Due
First quarter estimated tax payment for the 2026 tax year is due.
Calculate this payment →2025 IRA Contribution Deadline
Last day to make Traditional or Roth IRA contributions that count toward the 2025 tax year.
Compare IRA options →FBAR (FinCEN Form 114) Due
Deadline to file the FBAR for 2025 if the aggregate value of your foreign financial accounts exceeded $10,000 at any time during the year.
Check the FBAR threshold →Q2 2026 Estimated Tax Payment Due
Second quarter estimated tax payment for the 2026 tax year is due.
Calculate this payment →Tax Return Deadline for US Citizens Abroad
Automatic two-month extended filing deadline for US citizens and resident aliens living outside the US (2025 returns).
Check expat tax options →Q3 2026 Estimated Tax Payment Due
Third quarter estimated tax payment for the 2026 tax year is due.
Calculate this payment →Extended Tax Return Filing Deadline
Deadline for filing your 2025 federal tax return if you requested an extension by April 15, 2026.
Check late-filing costs →FBAR Automatic Extension Deadline
Final deadline to file the 2025 FBAR under the automatic extension past April 15 — no form is required to get this extension.
Check the FBAR threshold →401(k) Contribution Deadline
Last day to make 401(k) employee contributions for the 2026 tax year. The 2026 limit is $24,500 ($32,500 if age 50+).
Plan 401(k) contributions →Q4 2026 Estimated Tax Payment Due
Fourth quarter estimated tax payment for the 2026 tax year is due.
Calculate this payment →W-2 and 1099 Forms Due to Employees/Contractors
Employers must send W-2 forms and businesses must send 1099-NEC forms by this date (January 31 falls on a Sunday).
Find the right tax form →2026 Tax Return Filing Deadline
Deadline to file your 2026 federal income tax return or request a six-month automatic extension. Any taxes owed are still due by April 15.
Plan filing or an extension →Q1 2027 Estimated Tax Payment Due
First quarter estimated tax payment for the 2027 tax year is due.
Calculate this payment →2026 IRA Contribution Deadline
Last day to make Traditional or Roth IRA contributions that count toward the 2026 tax year.
Compare IRA options →2026 HSA Contribution Deadline
Last day to make HSA contributions that count toward the 2026 tax year — the deadline is the unextended tax return due date, not October 15 even if you file for an extension.
Plan HSA contributions →FBAR (FinCEN Form 114) Due
Deadline to file the FBAR for 2026 if the aggregate value of your foreign financial accounts exceeded $10,000 at any time during the year.
Check the FBAR threshold →Q2 2027 Estimated Tax Payment Due
Second quarter estimated tax payment for the 2027 tax year is due. Also the automatic extended filing deadline for US citizens abroad (2026 returns).
Calculate this payment →Q3 2027 Estimated Tax Payment Due
Third quarter estimated tax payment for the 2027 tax year is due.
Calculate this payment →Extended Tax Return Filing Deadline
Deadline for filing your 2026 federal tax return if you requested an extension by April 15, 2027.
Check late-filing costs →FBAR Automatic Extension Deadline
Final deadline to file the 2026 FBAR under the automatic extension past April 15 — no form is required to get this extension.
Check the FBAR threshold →401(k) Contribution Deadline
Last day to make 401(k) employee contributions for the 2027 tax year.
Plan 401(k) contributions →Required Minimum Distribution (RMD) Deadline
Deadline for most retirees already taking RMDs to withdraw their 2027 required minimum distribution — the special extended first-year deadline (April 1 of the following year) applies only to your very first RMD.
Calculate your RMD →Q4 2027 Estimated Tax Payment Due
Fourth quarter estimated tax payment for the 2027 tax year is due (January 15 falls on a Saturday, followed by the MLK Day holiday).
Calculate this payment →Get a reminder before federal tax deadlines. One email before each quarterly estimated tax payment (Tax Day included), plus one when the IRS publishes next year's numbers. About five a year; you confirm once and can unsubscribe anytime.
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Add these deadlines to your calendar. Subscribe once and next year's dates appear on their own.
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Disaster relief: could your deadline be postponed?
For individual filers in an area with an IRS disaster postponement. Checks the notices verified on November 6, 2026 only, and says when a notice may apply, never that it does.
The standard dates above apply to everyone else. In a federally declared disaster area the IRS can postpone individual filing and payment deadlines, but only for the places, dates and deadlines each notice names. These are the notices with a postponed date still ahead when we last checked them on Nov. 6, 2026. Payroll, business, FBAR and state deadlines are not covered here; the full list is on the IRS disaster relief page.
| Where | Disaster | Deadlines from | Postponed to | Notice |
|---|---|---|---|---|
| AL: Autauga County, Baldwin County, Barbour County, Bibb County, Bullock County, Butler County, Chambers County, Chilton County, Clarke County, Choctaw County, Coffee County, Conecuh County, Coosa County, Covington County, Crenshaw County, Dale County, Dallas County, Elmore County, Escambia County, Geneva County, Greene County, Hale County, Henry County, Houston County, Lee County, Lowndes County, Macon County, Marengo County, Mobile County, Monroe County, Montgomery County, Perry County, Pickens County, Pike County, Russell County, Sumter County, Tallapoosa County, Tuscaloosa County, Washington County, Wilcox County | Hurricane Isaias | Oct. 7, 2026 | Feb. 4, 2027 | AL-0017-DR |
| FL: Baker County, Bay County, Calhoun County, Citrus County, Columbia County, Dixie County, Escambia County, Franklin County, Gadsden County, Gilchrist County, Gulf County, Hamilton County, Holmes County, Jackson County, Jefferson County, Lafayette County, Leon County, Levy County, Liberty County, Madison County, Okaloosa County, Santa Rosa County, Suwannee County, Taylor County, Wakulla County, Walton County, Washington County | Hurricane Isaias | Oct. 9, 2026 | Feb. 8, 2027 | 3655-EM |
| GU: Guam | Super Typhoon Bavi | July 4, 2026 | Feb. 4, 2027 | 4946-DR |
| HI: Hawaii County | Earthquake | May 22, 2026 | Feb. 1, 2027 | 4936-DR |
| IN: Carroll County, Cass County, Dearborn County, Decatur County, Delaware County, Fayette County, Fountain County, Franklin County, Grant County, Hamilton County, Hancock County, Henry County, Lake County, LaPorte County, Madison County, Marion County, Morgan County, Parke County, Pike County, Porter County, Pulaski County, Putnam County, Randolph County, Rush County, Starke County, Tipton County, Union County, Vermillion County, Warren County, Wayne County | Severe storms, tornadoes and flooding | Aug. 11, 2026 | Feb. 1, 2027 | 4933-DR |
| MP: Rota, Saipan, Tinian | Super Typhoon Bavi | July 4, 2026 | Feb. 1, 2027 | 4931-DR |
| MS: Covington County, George County, Greene County, Hancock County, Harrison County, Pearl River County, Stone County, Wayne County | Tropical Storm Arthur | June 18, 2026 | Feb. 1, 2027 | 4930-DR |
| NE: Morrill County, Garden County, Arthur County, Keith County, Grant County, Lincoln County, Dawson County, Frontier County, Saunders County, Red Willow County | March wildfires | March 12, 2026 | Feb. 1, 2027 | SD-0010-DR |
| NE: Custer County | April wildfires | April 22, 2026 | Feb. 1, 2027 | SD-0011-DR |
| NE: Buffalo County, Fillmore County, Gage County, Jefferson County, Nemaha County, Richardson County, Thayer County, Thurston County, Howard County | Severe storms | May 15, 2026 | Feb. 1, 2027 | SD-0012-DR |
| NE: Dawes County | May wildfires | May 16, 2026 | Feb. 1, 2027 | SD-0013-DR |
| NE: Sioux County | June wildfires | June 9, 2026 | Feb. 1, 2027 | SD-0014-DR |
| NE: Knox County | Severe storm | Sept. 9, 2026 | Jan. 7, 2027 | SD-0016-DR |
| NM: Pueblo of Zuni | Severe storms and flooding | July 16, 2026 | Feb. 4, 2027 | 4954-DR |
| OH: Clermont County, Franklin County, Hamilton County, Licking County, Morgan County, Muskingum County, Perry County | Severe storms, straight-line winds, tornadoes, flooding and landslides | Aug. 10, 2026 | Feb. 1, 2027 | 4945-DR |
| SD: Oglala Sioux Tribe | Severe storms, straight-line winds and flooding | June 2, 2026 | Feb. 1, 2027 | 4941-DR |
| TX: Atascosa County, Austin County, Bandera County, Bastrop County, Bexar County, Blanco County, Brazoria County, Brewster County, Burnet County, Caldwell County, Colorado County, Comal County, Crockett County, DeWitt County, Dimmit County, Edwards County, Fayette County, Fort Bend County, Frio County, Galveston County, Gillespie County, Goliad County, Gonzales County, Grimes County, Guadalupe County, Harris County, Hays County, Jackson County, Karnes County, Kendall County, Kerr County, Kimble County, Kinney County, La Salle County, Lavaca County, Lee County, Live Oak County, Llano County, Mason County, Matagorda County, Maverick County, McMullen County, Medina County, Menard County, Mitchell County, Pecos County, Real County, Schleicher County, Sutton County, Terrell County, Travis County, Uvalde County, Val Verde County, Victoria County, Waller County, Washington County, Webb County, Wharton County, Williamson County, Wilson County, Zapata County, Zavala County | July storms | July 14, 2026 | Feb. 1, 2027 | SD-0018-DR |
| WA: Douglas County | Wildfires | July 31, 2026 | Feb. 1, 2027 | SD-0015-DR |
| WA: Chelan County, Ferry County, Okanogan County, Spokane County, Stevens County, Yakima County | Wildfires | July 31, 2026 | Feb. 1, 2027 | 3650-EM |
| WI: Forest County, Outagamie County, Vilas County, Winnebago County | Severe storms and tornadoes | July 27, 2026 | Feb. 1, 2027 | 4949-DR |
| WV: Barbour County, Doddridge County, Lewis County, Pendleton County, Pleasants County, Randolph County, Ritchie County, Tucker County, Tyler County, Upshur County, Wetzel County | Severe storms, flooding and landslides | July 21, 2026 | Feb. 1, 2027 | 4932-DR |
| WV: Fayette County, Harrison County, Kanawha County | Severe storms and flooding | Aug. 14, 2026 | Feb. 4, 2027 | 4953-DR |
For example, in Hawaii County a 2025 return on a valid extension (due Oct. 15, 2026) may now be filed by Feb. 1, 2027, but tax that was due on April 15, 2026 is not postponed by that notice. In the named Wisconsin counties the notice covers returns and payments that were due on April 15, 2026 (to Nov. 2, 2026); a Wisconsin county the notice does not name is not covered by it.
Frequently asked questions
When is the tax filing deadline for 2025 returns?
When are estimated tax payments due in 2026?
What is the deadline for IRA contributions?
What if I miss the September 15 estimated tax deadline?
What happens if I miss October 15?
Sources
Related Calculators
2027 Estimated Tax Due Dates
Form 1040-ES Q1 through Q4 payment dates computed from IRC §6654 and §7503, covered income periods, and quarter-specific planning guides
Quarterly Estimated Tax
Four installments (4/15, 6/15, 9/15, 1/15), safe harbor 90%/100%
Estimated Tax Penalty
Form 2210 safe harbor, 90%/100% prior-year test, 7% rate
Tax Refund Estimator
Estimate federal refund, withholding vs liability, adjustments
401(k) Calculator
Contribution limits, employer match, tax-deferred growth
Federal Holidays 2026
The 11 federal holidays in 2026 with weekdays, observed dates for weekend holidays, and what closes
Federal Holidays 2027
The 11 federal holidays in 2027 with weekdays, observed dates for weekend holidays, and what closes