Resource
Tax Due Dates
Individual, business, payroll, and non profit key dates.
Track every filing and payment deadline across entities and quarters. Individuals owe Q1 estimates on April 15, Q2 on June 15, Q3 on September 15, and Q4 on January 15 of the following year. Partnerships and S Corps file by March 15. C Corps and individuals file by April 15. Calendar year non profits file Form 990 by May 15. Payroll Form 941 is due the last day of the month following each quarter, and Form 940 for federal unemployment is due January 31.
| Date | What's due |
|---|---|
| Jan 1 | First day of the calendar year. |
| Jan 15 | Q4 estimated tax payment due for individuals. |
| Jan 29 | IRS begins accepting individual tax returns. |
| Jan 31 | Q4 940/941 filings; W-2 and 1099-NEC issuance to recipients and the SSA/IRS. |
| Mar 17 | Partnership (1065) and S Corp (1120-S) filing deadline; extension requests due same day. |
| Apr 15 | Individual (1040) and C Corp (1120) filing deadline; Q1 estimated payments due; IRA and HSA contribution deadline for prior year. |
| Apr 30 | Q1 941 payroll tax filing deadline. |
| May 15 | Calendar year non profit 990 filing deadline. |
| Jun 17 | Q2 estimated tax payment due for individuals. |
| Jul 31 | Q2 941 payroll tax filing deadline. |
| Sep 16 | Q3 estimated tax payment due; extended partnership and S Corp returns due. |
| Oct 15 | Extended individual and C Corp return deadline. |
| Oct 31 | Q3 941 payroll tax filing deadline. |
| Nov 15 | Extended non profit 990 filing deadline. |
| Dec 31 | Last day to execute most calendar year tax strategies, including retirement contributions and charitable gifts. |
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