Living tax calendar
Every date that matters, in order.
Past dates drop off on their own, so the next thing due is always at the top.
IRS deadline · in 17 days
Extended 2025 individual returns due
Last day to file a 2025 Form 1040 that was put on extension. Extended calendar-year C-corporation returns are due the same day.
Planning · in 94 days
Last day for 2026 tax moves
Retirement contributions through payroll, charitable gifts and business purchases generally have to happen by December 31 to count for 2026.
IRS deadline · in 109 days
Fourth-quarter 2026 estimated tax due
Final 2026 estimated payment for self-employed people and anyone without enough withholding.
IRS deadline · in 126 days
W-2s and 1099-NEC due
Employers send W-2s and file them with the SSA. Businesses send and file 1099-NEC for contractors. January 31 falls on a Sunday in 2027.
IRS deadline · in 168 days
Partnership and S-corporation returns due
Forms 1065 and 1120-S for calendar-year businesses, or the extension request.
IRS deadline · in 199 days
2026 individual returns due
Form 1040 or an extension request, the first-quarter 2027 estimated payment, and the last day for 2026 IRA and HSA contributions. Calendar-year C-corporation returns are also due.
IRS deadline · in 260 days
Second-quarter 2027 estimated tax due
Second 2027 estimated payment.
IRS deadline · in 352 days
Third-quarter estimates and extended business returns due
Third 2027 estimated payment, plus extended partnership and S-corporation returns.
IRS deadline · in 382 days
Extended 2026 individual returns due
Last day to file a 2026 Form 1040 that was put on extension.
Federal deadlines for calendar-year filers. State deadlines and fiscal-year filers differ; ask us about yours. Dates that fall on a weekend or holiday have already been moved to the next business day.