Good to know.

Key dates

Federal tax-related deadlines relevant for most individuals and small businesses. State deadlines may differ.

General information, not tax advice. For the authoritative federal calendar, see the IRS tax calendar (Publication 509) ↗.

Sep 15, 2026Q3 estimated tax & extended S-corp & partnership returns
Oct 15, 2026Extended individual returns
Jan 15, 2027Q4 estimated tax (prior year)
Mar 15, 2027S-corp & partnership returns
Apr 15, 2027Individual returns & Q1 estimated tax
Jun 15, 2027Q2 estimated tax
Sep 15, 2027Q3 estimated tax & extended S-corp & partnership returns
Oct 15, 2027Extended individual returns
Jan 18, 2028Q4 estimated tax (prior year)
Mar 15, 2028S-corp & partnership returns
Apr 18, 2028Individual returns & Q1 estimated tax
Jun 15, 2028Q2 estimated tax
Sep 15, 2028Q3 estimated tax & extended S-corp & partnership returns
Oct 16, 2028Extended individual returns
Jan 16, 2029Q4 estimated tax (prior year)
Mar 15, 2029S-corp & partnership returns
Apr 17, 2029Individual returns & Q1 estimated tax
Jun 15, 2029Q2 estimated tax
Sep 17, 2029Q3 estimated tax & extended S-corp & partnership returns
Oct 15, 2029Extended individual returns
Jan 15, 2030Q4 estimated tax (prior year)
Mar 15, 2030S-corp & partnership returns
Apr 15, 2030Individual returns & Q1 estimated tax
Jun 17, 2030Q2 estimated tax
Sep 16, 2030Q3 estimated tax & extended S-corp & partnership returns
Oct 15, 2030Extended individual returns
Jan 15, 2031Q4 estimated tax (prior year)
Mar 17, 2031S-corp & partnership returns
Apr 15, 2031Individual returns & Q1 estimated tax
Jun 16, 2031Q2 estimated tax
Sep 15, 2031Q3 estimated tax & extended S-corp & partnership returns
Oct 15, 2031Extended individual returns

Helpful links

Official IRS tools for simple filing and quick checks.

File a simple return online ↗

For straightforward situations, IRS Free File lets you file federal taxes at no cost.

Where's my refund? ↗

Track the status of a federal refund directly with the IRS.

Make a payment ↗

Pay the IRS directly from your bank account with Direct Pay.

Forms & publications ↗

The IRS library of current forms, instructions, and publications.

Withholding estimator ↗

Check whether you're withholding the right amount from each paycheck.

Small Business Tax Center ↗

The IRS hub for small-business and self-employed tax topics.

Get a tax transcript ↗

Download a prior-year return, account, or wage transcript from the IRS.

Interactive Tax Assistant ↗

The IRS Q&A tool for quick answers to common tax-law questions.