Guide
Tax extension deadlines
How extensions work, which form to file, and what they do not extend.
A tax extension gives you additional time to file your business tax return with the IRS. However, an extension to file is NOT an extension to pay any taxes owed.
Form 4868 (Individual Extension)
Individuals can request an automatic 6-month extension to file their income tax return (Form 1040) by filing Form 4868.
Due date for extension request: April 15 (same as the original return due date)
Extended return deadline: October 15
Form 7004 (Business Extension)
Partnerships, S-Corporations, and C-Corporations can request a 6-month extension using Form 7004.
Important Notes
- An extension to file does NOT give you more time to pay taxes owed
- Any taxes owed are still due on the original date (usually April 15)
- Interest and penalties apply to unpaid taxes, even with an extension
- Extensions require filing a request form; the extension is not automatic
Common questions
Does an extension give me more time to pay?
No. An extension moves the filing deadline only. Tax owed is still due on the original due date, and interest and penalties accrue on unpaid amounts from that date.
Which extension form do I file?
Individuals file Form 4868. Partnerships, S-corporations, and C-corporations file Form 7004.