2025 Tax Season Start Date. Final deadline for those with approved extensions; The key deadlines are january 31st, 2024, for the 2022/23 tax year, and january 31st, 2025, for the 2023/24 tax year.

Note that if a person will owe taxes with the tax return, it is still that taxpayer’s obligation to pay those taxes by april 15, 2025, even if an extension to file has been requested. Tax season began on january 29, 2024 and ended on april 15, 2024.