Tax Center
Tax Due Dates
The federal tax calendar. Dates below are the official IRS deadlines for 2026 — if a date falls on a weekend or federal holiday, the deadline moves to the next business day. Florida has no state income tax, so these are what matters for most South Florida filers.
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Individual filers (Form 1040)
Regular filing deadline is April 15. A six-month extension filed by April 15 pushes the filing deadline to October 15 — but the extension does NOT delay payment of tax owed.
| Date | What's due |
|---|---|
| Jan 15, 2026 | Q4 2025 estimated tax payment |
| Apr 15, 2026 | 2025 Form 1040 + payment · 2025 IRA/HSA contributions · Q1 2026 estimated tax |
| Jun 16, 2026 | Q2 2026 estimated tax payment |
| Sep 15, 2026 | Q3 2026 estimated tax payment |
| Oct 15, 2026 | 2025 Form 1040 (extended filers) |
| Jan 15, 2027 | Q4 2026 estimated tax payment |
Partnerships & S-Corporations (Forms 1065 & 1120-S)
Partnerships and S-Corporations file earlier than individuals — March 15 for calendar-year entities. Extensions push filing to September 15.
| Date | What's due |
|---|---|
| Mar 16, 2026 | 2025 Form 1065 (partnerships) + K-1s · 2025 Form 1120-S (S-corps) + K-1s |
| Sep 15, 2026 | 2025 Form 1065 / 1120-S (extended filers) |
C-Corporations (Form 1120)
Calendar-year C-corps file by April 15 — same as individuals. Extensions push filing to October 15, but tax payment is still due April 15.
| Date | What's due |
|---|---|
| Apr 15, 2026 | 2025 Form 1120 + payment |
| Apr 15 / Jun 16 / Sep 15 / Dec 15 | Quarterly estimated tax (C-corps) |
| Oct 15, 2026 | 2025 Form 1120 (extended filers) |
Employer & payroll filings
Employers have separate calendar obligations for withholding, FUTA, and information returns.
| Date | What's due |
|---|---|
| Jan 31, 2026 | W-2s to employees · 1099-NEC to contractors · Q4 Form 941 · Annual Form 940 (FUTA) |
| Apr 30 / Jul 31 / Oct 31 | Quarterly Form 941 |
| Feb 28, 2026 | Paper 1099-MISC to IRS (e-file deadline March 31) |
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