January
2025 Q4 estimated tax payment
Individuals · Form 1040-ES
Plan ahead
2026 tax calendar
Key federal filing, payment, extension, and planning dates for individuals and businesses.
12 monthsOne clear view of the year ahead
Stay on track
Know the dates that matter.
Use this calendar as a planning guide, then confirm the details that apply to your situation. If a deadline falls on a weekend or legal holiday, the IRS generally moves it to the next business day.
February
2025 individual return balance due
File Form 1040/1040-SR and pay any balance to avoid the January estimated-payment rule
March
Partnership and S corporation returns
Calendar-year Forms 1065 and 1120-S due; extension available
April
Individual tax returns & payment
Forms 1040/1040-SR due; Form 4868 extension deadline
2026 Q1 estimated tax payment
Individuals · Form 1040-ES
C corporation returns
Calendar-year Form 1120 due
May
Nonprofit information returns
Calendar-year Form 990 series generally due
June
2026 Q2 estimated tax payment
Individuals · Form 1040-ES
U.S. taxpayers abroad
Individual return and payment deadline for eligible filers
July
Payroll tax returns
Form 941 second-quarter return due
August
Extended nonprofit returns
Common calendar-year extended Form 990 deadline
September
2026 Q3 estimated tax payment
Individuals · Form 1040-ES
Extended business returns
Partnership and S corporation extensions generally due
October
Extended individual returns
Form 1040/1040-SR filed under a timely Form 4868 extension
November
Payroll tax returns
Form 941 third-quarter return due
December
Year-end tax planning
Review withholding, retirement contributions, and business purchases before year end
Source: IRS Publication 509 (2026), Tax Calendars and IRS estimated-tax guidance. This is general information, not tax advice.
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