Upcoming Deadlines for April 15, 2026
- 1st Quarter 2026 Estimated Tax Payment Due
- C corporation Extensions Form Due for Tax Year 2025 for taxpayers with a calendar-year end
- C corporations Tax Return Due for Tax Year 2025 for taxpayers with a calendar-year end
- Individual Tax Return Extensions Form Due for Tax Year 2025
- Individual Tax Returns Due for Tax Year 2025
- Last day to make a 2025 IRA Contribution
- Trust & Estate Extensions Form Due for Tax Year 2025 for entities with a calendar-year end
- Trust & Estate Tax Return Due for Tax Year 2025 for entities with a calendar-year end
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