Last Day To File Taxes 2024. December 31, 2024, is the last day of the tax year and is also the last day to make contributions to your 401 (k) plan or to incur expenses you expect to deduct when you file your 2024 taxes. Monday was the last day for most taxpayers to file a 2023 return.
It is important to remember income tax related deadlines in a year to avoid paying penalties, penal interest, to file income tax return (itr) in time etc. When is the last day to file taxes in 2024?