Filing your Singapore income tax return online is now easier than ever with IRAS’s e-Filing system. This guide walks you through each step, covering essential documents, submission deadlines, common mistakes to avoid, and tips to maximise tax reliefs for 2025.
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📅 1. Know Your Filing Period
For the Year of Assessment (YA) 2025, you must file your Singapore income tax return between 1 March 2025 and 18 April 2025 (for e-Filing). Paper filing deadlines are earlier — typically 15 April 2025.
🗂 2. Gather Your Required Documents
Before you log in to myTax Portal, ensure you have:
- Your Singpass login credentials
- Income statements (e.g., IR8A, commission statements, rental income records)
- Supporting documents for deductions (CPF contributions, course fees, donations)
- Details of tax relief claims (parent relief, NSman relief, spouse relief)
💻 3. Log in to myTax Portal
- Visit www.iras.gov.sg
- Click on Login to myTax Portal
- Select Individual and log in using Singpass
- Navigate to File Income Tax Return
IRAS pre-fills much of your income data from employers and CPF records. You should:
- Check your employment income and bonuses
- Ensure rental income is correctly reported
- Update any other taxable income not shown in the pre-fill
💡 5. Claim Eligible Tax Reliefs
Common reliefs for YA 2025 include:
- Earned Income Relief
- NSman (Self/Wife/Parent) Relief
- Parent/Grandparent Relief
- CPF Cash Top-Up Relief
- Course Fees Relief
Remember: From YA 2025, the personal income tax relief cap remains at S$80,000.
📤 6. Submit and Save a Copy
Once satisfied, click Submit. You’ll receive an acknowledgement page with a reference number. Save or print it for your records.
⚠️ 7. Common e-Filing Mistakes to Avoid
- Forgetting to declare foreign-sourced income that is taxable
- Claiming deductions without supporting documents
- Overstating donations or relief claims
- Missing the deadline — late filing penalties start from S$200
📊 8. Benefits of Filing Online vs Paper
| Feature | e-Filing | Paper Filing |
|---|---|---|
| Processing Speed | Faster (2 weeks) | Slower (up to 8 weeks) |
| Pre-Filled Data | Yes | No |
| Error Reduction | System prompts | Manual checks |
✅ Final Tips
- File early to avoid last-minute errors
- Use IRAS’s tax calculator to estimate your tax before filing
- Keep digital copies of all receipts and proof of claims for at least 5 years
