Free tool
Find your U.S. tax deadlines
Choose your business type and see every upcoming federal deadline, how many days you have left, and the extension date. Add any deadline to your calendar in one click.
Tax deadline finder
About extensions
An extension moves the filing, not the payment
Form 4868 (individuals) and Form 7004 (businesses) give you six more months to file. Any tax you owe is still due on the original date, and interest and penalties can apply to late payments.
We file extensions on time for our clients and estimate what is owed before the original deadline.
- March 15: partnerships (1065) and S corporations (1120-S).
- April 15: individuals (1040), C corporations (1120) and Form 5472.
- June 15: non-residents without U.S. wages (1040-NR).
- September 15: extended 1065 and 1120-S.
- October 15: extended 1040, 1120 and Form 5472.
FAQ
Deadline questions
What happens if a tax deadline falls on a weekend?
The deadline moves to the next business day. The finder applies this automatically, along with federal holidays that affect a deadline, such as Emancipation Day in April.
My business uses a fiscal year. Do these dates apply?
No. These dates are for calendar-year filers. Fiscal-year businesses have deadlines based on the month their year ends. Contact us and we will set up your calendar.
Does the finder include state deadlines?
No. It shows federal deadlines only. Most states follow similar dates, but some differ. We track state deadlines for our clients.
What if I already missed a deadline?
File as soon as possible. Penalties and interest usually grow the longer a return is late. We prepare late and prior-year returns and tell you the cleanest way to get current.
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