Tax Day 2024 Deadline For Estimated Taxes. The third estimated tax payment is due on sept. This is when most individual income tax filers must file taxes or have filed an extension.

The deadline for filing a federal tax return was 11:59 p.m. The taxpayer is entitled to interest at a rate of 0.5% per month, or part of a month, calculated from april 1, 2024, until the date of the refund, if.