Guide · 2026
How to appeal your IRAS property tax assessment
By Winfred Quek · 9-minute read · Last reviewed May 2026
Facts verified: May 2026 · Sources linked below
Key Takeaways
- • You appeal the Annual Value, not the tax rate. Lowering the AV is what lowers the tax.
- • The objection window is 30 days from the date of the Valuation Notice. Miss it and you generally wait for the next cycle.
- • Comparable rental evidence for similar units is the evidence IRAS actually weighs.
- • You must keep paying property tax on the current assessment during the review; a successful objection triggers a refund.
- • An objection is worth it only when the AV is genuinely out of line, not merely higher than you would like.
Most property owners never look closely at their Valuation Notice. They see the property tax bill, grumble, and pay it. But the Annual Value behind that bill is a number, and like any number, it can occasionally be wrong, or simply out of step with what the property would actually rent for.
The objection process exists precisely for that. It is not a complaints channel and it is not a negotiation, it is a structured review of whether the Annual Value is correct. Used properly, on the right facts, it can permanently lower your annual tax. Used carelessly, it wastes everyone's time. Here is how it works and how to judge whether yours is a case worth running.
What exactly are you appealing?
The first thing to be clear about: you are not appealing the property tax rate. The rates, 0% to 32% for owner-occupied property across the Annual Value bands, and 12% to 36% for non-owner-occupied, are set by law and are not negotiable.
What you can object to is the Annual Value (AV) itself. According to IRAS, the Annual Value of a property is the estimated gross annual rent the property could fetch if it were let, excluding furniture, furnishings, and maintenance fees. Property tax is then the rate applied to that AV. So if the AV is too high, the tax is too high, and the only way to fix the tax is to fix the AV.
IRAS reviews and may revise Annual Values periodically to keep them in line with prevailing market rents. When your AV changes, IRAS issues a Valuation Notice. That notice is what starts your objection clock.
What is the deadline to object?
This is the part people get wrong. According to IRAS, an objection to the Annual Value must be made within 30 days from the date of the Valuation Notice. The 30-day window is firm. If you let it lapse, you generally cannot reopen the assessment for that period and must wait for the next review cycle.
So the practical discipline is simple: when a Valuation Notice arrives, do not file it unread. Look at the AV, decide quickly whether it is out of line, and if it is, act inside the 30 days. An objection that is right on the merits but late on the calendar fails on the calendar.
How do you file the objection?
The objection is filed through the IRAS digital service for property owners. The submission needs three things:
- Your proposed Annual Value. Not "lower", a specific figure you believe is correct.
- Your grounds. A clear explanation of why the current AV overstates the property's rental potential.
- Supporting evidence. The material that backs your proposed figure, primarily comparable rental data.
What evidence actually works?
An objection lives or dies on its evidence. Opinion does not move an Annual Value; comparable data does.
The evidence IRAS genuinely weighs:
- Recent rental transactions for comparable units. Actual leases signed for units of a similar size, layout, floor level, and condition in the same development, or a closely comparable one. This is the core of any serious objection.
- Evidence the property is not comparable to the units IRAS benchmarked against. If your unit is materially smaller, lower-floor, or in poorer condition than the units that set the AV, that is relevant.
- A documented vacancy or rental difficulty can be relevant context, though the AV reflects rental potential, not your actual rental outcome.
What does not work: "my neighbour pays less", general statements that the market has softened without transaction data, or simply that the bill is unwelcome. The AV is an estimate of market rent, so you rebut it with market rent evidence, nothing else.
When is an appeal actually worth it?
This is where I give clients a straight answer. An objection costs you time, and possibly the cost of pulling proper comparable data. It is worth running only when the case is real.
| Situation | Worth an objection? |
|---|---|
| AV clearly above what comparable units actually rent for, with data to prove it | Yes, this is exactly what the process is for |
| Your unit is materially inferior to the units IRAS benchmarked | Yes, if you can document the difference |
| AV is higher than last year but in line with current market rents | No, a higher AV that reflects the market is correct |
| You simply think property tax is too expensive | No, that is the rate, not the AV, and the rate is fixed by law |
A useful test: if you cannot point to comparable rental transactions that support a lower figure, you probably do not have an objection, you have a preference.
Winfred's Take
My honest position: most property tax bills are not worth appealing, because most Annual Values are reasonably set. IRAS revises AVs to track market rents, and a higher AV in a year when rents rose is not an error, it is the system working. The objections worth filing are the genuine outliers, a unit benchmarked against better-positioned stacks, or an AV that simply has not caught a real softening in that specific development's rents. If you have the comparable data and the AV is clearly off, file inside the 30 days and file with evidence. If all you have is irritation at the bill, save your energy, the rate is not appealable and the AV is probably fine.
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Winfred Quek · CEA R073319H · Crestbrick
Frequently asked questions
How long do I have to object to my property tax assessment?
According to IRAS, an objection to the Annual Value must be filed within 30 days of the date of the Valuation Notice. The window is firm; a late objection generally cannot be entertained for that period.
Do I have to pay property tax while my objection is being reviewed?
Yes. IRAS requires you to continue paying the tax based on the current assessment during the review. If the objection succeeds, the tax is recomputed on the revised Annual Value and any overpayment is refunded.
What is the best evidence for a property tax objection?
Recent rental transactions for genuinely comparable units, similar size, layout, floor, and condition, in the same or a closely similar development. Comparable rental data is what IRAS weighs; general opinion is not.
Can I object to the property tax rate?
No. The property tax rates are set by law and are not appealable. You can only object to the Annual Value. Lowering the Annual Value is the only route to a lower bill.
What happens if I miss the 30-day window?
If you miss the objection window, the assessment generally stands for that period, and you would need to wait for the next valuation review. This is why a Valuation Notice should be read and acted on promptly.
Sources & References
Winfred Quek is an Associate Marketing Consultant at Crestbrick Pte Ltd (CEA Licence L31010886H), advising Singapore upgraders, investors, and family offices. CEA R073319H. The information on this page is general and does not constitute financial, investment, tax, or legal advice.