How To File Tax Extension 2025. Taxpayers have until april 15 to request an extension by submitting form 4868. October 15, 2025 was the extended filing deadline for individual tax returns, sole proprietorships, and c corporations.

Irs form 4868, also known as an “application for automatic extension of time to file,” is a document taxpayers can submit to the irs if they need more time to file their individual federal. If you are a sole proprietorship or c corporation that applied for an extension from the original april 15, 2024.