Income Tax Filing Deadline 2025 Singapore. For the year of assessment 2025 (ya2024), you will be taxed based on your income earned in the previous year between jan 1, 2023, and dec 31, 2023. 30 deadline to file 2025 corporate income tax (cit) returns.

To make changes, you need to file your 2025 tax return via mytax portal from 1 mar to 18 apr. Singapore tax agency extends 2025 individual income tax return filing deadline.