Important Tax Dates
Key federal and Pennsylvania tax deadlines and filing dates.
◆ Individual Tax Filing Deadlines
Federal and Pennsylvania filing/extension deadlines
April 15, 2026 — Filing Deadline
Deadline to file 2025 federal and Pennsylvania individual income tax returns and pay any tax due.
April 15, 2026 — Extension Request Deadline
Deadline to request an automatic extension of time to file your federal individual income tax return. Pennsylvania generally recognizes the federal extension when applicable.
October 15, 2026 — Extended Filing Deadline
Deadline to file a 2025 individual income tax return for taxpayers who received a valid six-month extension.
◆ Estimated Tax Payment Deadlines
Federal and Pennsylvania estimated tax payment dates
April 15, 2026 — First Estimated Payment
First estimated tax payment for tax year 2026 due.
June 15, 2026 — Second Estimated Payment
Second estimated tax payment for tax year 2026 due.
September 15, 2026 — Third Estimated Payment
Third estimated tax payment for tax year 2026 due.
January 15, 2027 — Fourth Estimated Payment
Fourth estimated tax payment for tax year 2026 due.
Estimated tax payments may apply to taxpayers who receive
income that is not subject to sufficient withholding.
◆ Important Tax Reminders
A few things to keep in mind
An Extension Gives You More Time to File — Not More Time to Pay
An extension provides additional time to file your tax return, but it generally does not extend the time to pay any tax due. Taxes owed are generally due by the original filing deadline.
Tax Deadlines Can Change
Deadlines may be affected by weekends, holidays, disaster relief, or other IRS and Pennsylvania announcements.
Stay Up to Date
Tax dates on this page are reviewed and updated annually. Check back for upcoming filing-season deadlines and important dates.