If you’re not ready to file your federal taxes by the deadline, this guide will help you file an extension to give you extra time to file your return without penalties.
A tax extension grants you an additional six months to file your business tax return. This can be useful if you need more time to organize your financial records, complete your bookkeeping for the year, or find an accountant you want to work with. However, keep in mind that an extension to file is not an extension to pay— any taxes owed are still due by the original deadline to avoid interest and penalties.
Your business structure determines what form to use and how to submit it. The table below includes:
| Business Type | Form to File | What it covers | Original deadline | Extended deadline | How to File |
|---|---|---|---|---|---|
| Sole proprietors / Single-Member LLCs | Form 4868 | Personal Return (1040 + Schedule C) | April 15, 2025 | October 15, 2025 | IRS Free File |
| Partnership / Multi-Member LLC | Form 7004 | Business Return | March 17, 2025 | September 15, 2025 | Tax Act |
| S Corporation | Form 7004 | Business Return | March 17, 2025 | September 15, 2025 | Tax Act |
| C corporations | Form 7004 | Business Return | April 15, 2025 | October 15, 2025 | Tax Act |
| All business owners fling personal return | Form 4868 | Personal Return (1040) | April 15, 2025 | October 15, 2025 | IRS Free File |
Special Consideration: Fiscal Year Businesses If your business operates on a fiscal year that differs from the standard calendar year, your tax filing deadline is the 15th day of the fourth month after your fiscal year ends. If you request an extension, the new deadline will be six months after that date.