For the 2026 tax year, filed in 2027. Missing a deadline can mean penalties and interest. Bookmark this page and never miss a date.
Third quarter payment covering June–August income for self-employed, gig workers, and investors.
Last day for charitable contributions, Roth conversions, RMDs, capital loss harvesting, and business expense timing.
Fourth quarter payment covering September–December income for self-employed, gig workers, and investors.
Employers furnish W-2s to employees and 1099-NEC to contractors.
Federal returns for S-Corporations and Partnerships. File or extend by this date.
File Form 7004 for automatic 6-month extension. Extended due date: September 15.
Federal individual income tax return deadline.
Last day to make a prior-year IRA or HSA contribution — including Roth and backdoor Roth.
Automatic 6-month extension. Extended due date: October 15. Extension to FILE, not to PAY.
Final deadline for 1120-S and 1065 returns on extension.
Final deadline for 1040 on extension. No further extensions available.