Receiving a Notice of Assessment (NOA) from the Inland Revenue Authority of Singapore (IRAS) does not always mean you agree with the tax computed. If you believe there is an error, you have the legal right to object to a tax assessment. This comprehensive guide explains the process, deadlines, and tips to make your objection successful in 2025.
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📄 1. Understand Your Tax Assessment
The Notice of Assessment (NOA) shows your taxable income, tax reliefs granted, and tax payable or refundable. Before objecting, review every section carefully:
- Check if all your declared income is accurate
- Ensure eligible tax reliefs and deductions have been applied
- Verify property, rental, or self-employment income reporting
⏳ 2. File Your Objection Within the Deadline
For YA 2025, you must file your objection within 30 days from the date of your NOA. Missing the deadline can make it difficult to have your case reviewed unless exceptional circumstances apply.
💻 3. How to Object via myTax Portal
- Go to IRAS myTax Portal
- Log in using Singpass
- Select Individuals → Object to Assessment
- Choose the correct Year of Assessment (YA)
- Provide reasons for your objection and upload supporting documents
📂 4. Supporting Documents You Should Prepare
- Employment income correction letters from your employer
- Receipts for course fees, donations, or medical expenses
- Proof of CPF top-ups or voluntary contributions
- Rental agreements and expense breakdowns for property income
⚖️ 5. What Happens After You Object
IRAS will review your objection and may:
- Request further clarification or documents
- Adjust your assessment and issue a Revised NOA
- Maintain the original assessment with an explanation
If you still disagree, you may appeal to the Income Tax Board of Review.
💡 6. Tips for a Successful Objection
- Submit your objection early to avoid missing deadlines
- Be concise and factual in explaining your case
- Always include complete supporting evidence
- Keep a copy of all correspondence with IRAS
📊 7. Common Reasons for Tax Objections in Singapore
| Reason | Description |
|---|---|
| Unreported Reliefs | Forgetting to claim deductions like CPF cash top-ups, NSman relief, or parent relief. |
| Incorrect Income Reporting | Employer reporting errors or duplicated income entries. |
| Rental Income Discrepancies | Expenses not deducted or rental periods misreported. |
✅ Final Reminder
Objecting to a tax assessment in Singapore is a straightforward process if you act quickly and provide solid documentation. With proper preparation, you can correct errors and ensure you only pay the tax you truly owe.
