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Tools and tracking for tax season.
Helpful references for anyone navigating tax season — and key dates to keep on your calendar.
Tax calendar — key 2026 deadlines
- Jan 15Q4 2025 estimated tax payments due
- Jan 31W-2s & 1099s issued to recipients
- Mar 17S-Corp (1120-S) & Partnership (1065) returns due
- Apr 15Individual (1040) & C-Corp (1120) returns due
- May 15Non-profit Form 990 due (calendar-year orgs)
- Jun 16Q2 estimated tax payments due
- Sep 15Extended S-Corp & Partnership returns due
- Oct 15Extended individual returns due
Deadlines reflect federal due dates and shift to the next business day when falling on weekends or holidays.
