Tax Extension Deadline 2024 For S Corp Tax Return. Here’s what that means for your small business, any other deadlines you should be aware of as an s. October 15, 2024 was the extended filing deadline for individual tax returns, sole proprietorships, and c corporations.

If you are a sole proprietorship or c corporation that applied for an extension from the original april 15, 2024. You do, however, still have to file a tax return: