Corporate Tax Return Extension Deadline 2024 Tax Return. If you are a sole proprietorship or c corporation that applied for an extension from the original april 15, 2024. 15 tax deadline for states hit by hurricanes, severe weather.

This means you file your business taxes at the same time you file your personal income taxes. October 15, 2024 is the extended filing deadline for individual tax returns, sole proprietorships, and c corporations.