Singapore’s income tax season for the Year of Assessment (YA) 2026 has officially commenced, with residents required to submit their returns between 1 March and 18 April 2026. The filing exercise covers income earned in the calendar year 2025.
The Inland Revenue Authority of Singapore (IRAS) is urging taxpayers to complete their submissions electronically via the myTax Portal using Singpass. E-filing remains the default and most efficient method, with physical paper submissions largely phased out in line with Singapore’s Smart Nation initiatives.
Tax bills will be issued progressively from late April 2026 onwards. Taxpayers are advised to ensure that all information is accurate and updated to avoid processing delays or compliance issues.
Auto-Inclusion Scheme Simplifies Filing for Employees
For many employees, the filing process has been streamlined under the Auto-Inclusion Scheme (AIS). Employers participating in AIS submit employment income details directly to IRAS, meaning most salaried workers do not need to manually key in their income figures.
When logging into the myTax Portal, taxpayers will typically find their income information pre-filled. However, individuals remain responsible for verifying the accuracy of the details before submission. Those with additional income sources — such as rental income, freelance earnings, dividends or investment returns — must declare these accordingly.
Foreigners working in Singapore should also take note. Individuals who receive a filing notification from IRAS are required to submit their returns even if they worked in Singapore for fewer than 183 days in 2025. Tax residency status may affect the applicable tax rates, but the filing obligation still applies if notified.
Penalties for Late or Non-Filing
The deadline for YA 2026 filing is 18 April 2026. IRAS has reiterated that late filing or failure to file may result in penalties. These can include fines, enforcement actions, or estimated assessments based on available information.
Singapore operates a progressive personal income tax system. For YA 2024 and subsequent years, the top marginal tax rate stands at 24 per cent for chargeable income exceeding S$1 million. Lower income bands are taxed at correspondingly lower rates, ensuring that higher earners contribute a larger proportion.
Taxpayers are encouraged to file early to avoid last-minute congestion on the system. Those requiring assistance can access step-by-step guides and digital support through IRAS’ official channels.
With the tax filing window now open, residents are reminded to review their financial records promptly and meet the 18 April deadline to remain compliant and avoid unnecessary penalties.