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Tax Deadline Tracker 2026

Select your filing type to see every deadline that matters to you. Download them to your calendar to keep them in front of you.

Select Your Filing Type

Choose one or more entity types to see relevant deadlines.

9

Total Deadlines

9 Deadlines for Individual

TodayJan 15

Q4 2025 Estimated Tax Payment Due

January 15, 2026

Fourth quarter 2025 estimated tax payment due for self-employed individuals and those with investment or other non-withheld income.

More detail
Form: Form 1040-ES
Penalty: Underpayment penalty of ~8% annualized rate on shortfall.
TodayApr 15

Individual Tax Return Due

April 15, 2026

2025 individual income tax return due. File Form 4868 for an automatic 6-month extension to October 15. Extension to file is NOT an extension to pay.

More detail
Form: Form 1040
Penalty: Failure-to-file: 5% of unpaid tax per month (max 25%). Failure-to-pay: 0.5% per month.
TodayApr 15

Last Day for 2025 IRA & HSA Contributions

April 15, 2026

Final day to make IRA contributions ($7,000 limit, $8,000 if 50+) and HSA contributions for the 2025 tax year.

More detail
Form: Form 5498 (issued by custodian)
TodayApr 15

Q1 2026 Estimated Tax Payment Due

April 15, 2026

First quarter 2026 estimated tax payment for self-employed individuals and those with non-withheld income.

More detail
Form: Form 1040-ES / 1120-W
Penalty: Underpayment penalty of ~8% annualized rate on shortfall.
TodayJun 15

Q2 2026 Estimated Tax Payment Due

June 15, 2026

Second quarter 2026 estimated tax payment due. Also the automatic extension deadline for US citizens living abroad.

More detail
Form: Form 1040-ES / 1120-W
Penalty: Underpayment penalty of ~8% annualized rate on shortfall.
TodaySep 15

Q3 2026 Estimated Tax Payment Due

September 15, 2026

Third quarter 2026 estimated tax payment due for self-employed and those with non-withheld income.

More detail
Form: Form 1040-ES / 1120-W
Penalty: Underpayment penalty of ~8% annualized rate on shortfall.
TodayOct 15

Extended Individual & C-Corp Returns Due

October 15, 2026

Extended individual (Form 1040) and C-Corporation (Form 1120) returns due if extension was filed by April 15.

More detail
Form: Form 1040 / 1120
Penalty: Failure-to-file and failure-to-pay penalties continue to accrue.
TodayDec 31

Year-End Tax Planning Deadline

December 31, 2026

Last day for most year-end tax planning moves: charitable contributions, retirement contributions (employer plans), loss harvesting, business equipment purchases (Section 179).

More detail
TodayJan 15

Q4 2026 Estimated Tax Payment Due

January 15, 2027

Fourth quarter 2026 estimated tax payment due. Can be skipped if you file your 2026 return and pay full balance by January 31, 2027.

More detail
Form: Form 1040-ES / 1120-W
Penalty: Underpayment penalty of ~8% annualized rate on shortfall.

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