Business Tax Filing Extension Deadline 2024 Calendar. If happened to be running behind and you had to file an extension then your tax filing is. You can extend the due date for filing your personal income tax return by six months (e.g., to october 15, 2024, for 2023 tax year returns) by filing form 4868 or making an electronic tax payment before the april 15 (or april 17) deadline.

If a corporation needs additional time to file form 1120, they may request an extension by filing form 7004, application for automatic extension of time to file certain business. “in general, the last date for filing of an income tax.