2024 Tax Deadline Date Extension. What to know about oct. If you filed an extension by tax day, your new filing deadline is tuesday, oct.

You have 10 calendar days after the initial date when you transmit a form 1065 electronic return to receive approval on a rejected return. For most taxpayers, the deadline to file their personal federal tax return, pay any tax owed or request an extension to file is monday, april 15, 2024.