03/07/2026
Need help with your 1120-S Extension Form 7004 for your S Corporation?
Form 7004 must be filed by midnight local time on the normal due date of the return. In the case of a 1120-S, this is by the 15th day of the 3rd month after the end of the tax year for the return. An accepted Form 7004 provides a 6-month extension of time to file the return.
Here are tax notes on some state specific S corporation extensions:
Arizona accepts a valid federal extension for S corporations (Form 7004) to extend the time for filing their state income tax return, but it is important to check the box 82F if return filed under extension on the 120S.
California automatically accepts federal extensions for S corporations, granting an automatic 6-month extension to file Form 100S without needing to submit a specific form.
Florida does not automatically accept a federal extension for S-corporations. To extend the filing deadline for Florida corporate income tax (Form F-1120), you must file a separate state extension request, Form F-7004 (Florida Tentative Income/Franchise Tax Return and Application for Extension of Time to File Return), by the original due date.
Illinois accepts the federal extension for S-Corporations (Form 7004) automatically, granting an additional 6 months to file, provided the federal extension is obtained.
Missouri accepts the federal extension for S-corporations (Form 7004). If you have an approved federal extension, you are not required to file a separate Missouri extension (Form MO-7004).
New Mexico accepts an approved federal extension (Form 7004) for S corporations, granting an automatic 6-month extension to file.
New York State does not accept a federal extension (IRS Form 7004) in place of a state application for S-corporations. To get a six-month extension, you must file Form CT-5.4 (Request for Six-Month Extension to File) on or before the original return due date, regardless of any federal extension.
Nevada does not impose a state income tax on S-corporations, so there is no state-level income tax return to extend, making a specific Nevada extension request unnecessary for income taxes. However, if your S-corp exceeds $4,000,000 in gross revenue, you must file a Nevada Commerce Tax return, which allows a separate 30-day extension, separate from the IRS extension.