Tax Filing Deadlines for 2025 (Tax Year 2024)
Missing a tax deadline is almost always the most expensive mistake on a return — penalties dwarf interest. Here's every date that matters for the 2024 tax year.
The big one: April 15, 2025
Federal individual returns (Form 1040) due. Also: Q1 2025 estimated payments due. IRA and HSA contributions for 2024 also due by this date. If you can't file, request an extension to October 15 — but pay your estimated balance by April 15.
Business filing deadlines
| Form | Entity | Due |
|---|---|---|
| 1065 | Partnership / multi-member LLC | March 17, 2025 |
| 1120-S | S-Corp | March 17, 2025 |
| 1120 | C-Corp (calendar year) | April 15, 2025 |
| 990 | Nonprofit (calendar year) | May 15, 2025 |
Quarterly estimated payments (2025)
- Q1: April 15, 2025
- Q2: June 16, 2025
- Q3: September 15, 2025
- Q4: January 15, 2026
Information returns (issued to recipients)
- W-2: January 31, 2025
- 1099-NEC: January 31, 2025
- 1099-MISC, 1099-INT, 1099-DIV: January 31 (recipient), February 28/March 31 (IRS)
- 1099-B (brokers): February 18, 2025
Retirement plan deadlines
- IRA / Roth IRA contributions for 2024: April 15, 2025
- SEP-IRA / Solo 401(k): tax-filing deadline including extensions
- Last day to take 2024 RMD: December 31, 2024 (April 1, 2025 if first RMD)
FBAR (FinCEN 114)
For US persons with foreign accounts totaling over $10,000 at any point in 2024. Due April 15, 2025, with an automatic extension to October 15. Filed separately on the FinCEN portal — not with your tax return.
Late penalties at a glance
- Failure to file: 5% per month, max 25%
- Failure to pay: 0.5% per month, max 25%
- Combined max: 47.5% in extreme cases
- Interest: federal short-term rate + 3%, compounded daily
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