Upgrading
The Singapore Property Upgrade Guide: How To Think About Moving Up
7 min read
How Much HDB Equity Do I Actually Have?
The sale price is not your equity. Here is how to work out what will genuinely be available for your next property — and why the CPF accrued interest line surprises almost everyone.
Madison Heng
Singapore Real Estate Advisor
- Published
- Last updated
- Reading time
- 4 min read
Ask most flat owners what their property is worth and you will get a confident answer. Ask what they will have available for the next purchase and the number usually gets vaguer, because it involves a subtraction almost nobody does voluntarily.
The short answer
- Equity is the sale price minus the outstanding loan, minus the CPF refund including accrued interest, minus selling costs.
- The CPF refund goes back into CPF — usable for the next property, but not spendable as cash.
- Accrued interest compounds for as long as you own the flat, and is the line owners most often forget.
- Your property withdrawal statement on the CPF website gives you the exact figure in two minutes.
The calculation, plainly
Start with what the flat will realistically sell for. Then subtract, in order:
- The outstanding housing loan. Whatever remains on your HDB or bank loan, as at completion.
- Your CPF refund. Every dollar of CPF used for the purchase, stamp duty and monthly instalments — plus accrued interest on all of it.
- Selling costs. Agent commission, legal fees, and any spend on presenting the flat.
What remains is cash. What went back into CPF is still yours, still earning interest, and still usable for your next property — just not for anything that requires cash.
Fact
Accrued interest is calculated on the CPF you withdrew, at the prevailing CPF Ordinary Account interest rate, compounded. It grows every year you hold the property, whether or not you think about it.
Why this line surprises people
Because it grows quietly, and because it grows on a base that itself grew.
If you used CPF for the downpayment and have been servicing the monthly instalment from CPF for ten or fifteen years, the principal withdrawn keeps increasing month by month — and interest accrues on each addition from the month it was withdrawn.
Owners who bought a long time ago, and who have serviced everything through CPF, sometimes find that the refund is the largest single deduction from their sale price. That is not a bad outcome. It simply means their wealth is sitting in CPF rather than in their bank account, and the next purchase has to be planned accordingly.
An illustrative walkthrough
Illustrative only
Round numbers chosen to show the structure of the calculation. Not a valuation, not a market estimate, and not a projection for any actual flat.
Illustrative figures only, used to show proportions rather than to predict any real transaction.
- Outstanding loan repaid
- $160,000
- CPF principal refunded
- $240,000
- CPF accrued interest refunded
- $72,000
- Selling costs
- $16,000
- Cash in hand
- $262,000
Illustrative example. Your own figures will differ — check your CPF property withdrawal statement for the accurate amounts.
In this example the household ends up with $262,000 in cash and $312,000 back in CPF. Both are real. Only one of them can pay for renovation.
What to actually do
Three steps, in this order.
Pull your CPF property withdrawal statement. It is on the CPF website and it takes minutes. It gives you the principal and the accrued interest to date for each owner. Until you have this, every upgrade conversation you have is approximate.
Get your outstanding loan balance. From your latest statement, or by asking your bank or HDB.
Establish a realistic sale range. Look at recent transactions for comparable units in your block and in nearby blocks — same flat type, similar floor, similar condition. Published transaction data is the right input here. A number someone mentioned in passing is not.
My opinion
The households who handle upgrading best are almost always the ones who did this arithmetic a year before they intended to move, rather than a week after they fell for a unit. It is not a difficult calculation. It is just an unwelcome one, which is why it gets deferred.
What your equity does and does not tell you
It tells you your ceiling for the next purchase, once you add what you can borrow.
It does not tell you whether you should move. Plenty of households have healthy equity and still shouldn't upgrade this year — because the monthly commitment would be uncomfortable, because one income is about to change, or because the thing they actually want is not a bigger property.
Equity is an input. It is not a recommendation.
Last updated 30 August 2026Based on publicly available Singapore property data
Sources & where to verify
- CPF Board — Housing withdrawal statements and accrued interest
- HDB — Resale transaction prices and selling procedures
Rules, rates and published figures change. Check the current position on the official source before you act on anything here.
Frequently asked questions
Where can I find how much CPF I have used for my flat?
Log in to the CPF website and look for your property withdrawal statement. It shows the principal amount withdrawn for the property and the accrued interest to date. This is the most important single document in an upgrade conversation, and it takes about two minutes to retrieve.
Is accrued interest a penalty?
No. It is the interest your CPF savings would have earned had you not used them for the property. When you sell, that amount is returned to your CPF account, where it continues earning interest and can be used again for a subsequent property, subject to the rules. It is not lost — but it is not cash in hand either.
What if my sale proceeds are not enough to refund my CPF?
Where a flat is sold at market value and the proceeds are insufficient to fully refund the CPF principal and accrued interest, the shortfall is generally not required to be topped up in cash, subject to conditions. The practical consequence is that you have little or nothing available for the next purchase, which is a planning problem rather than a debt problem. Check your specific position with the CPF Board.
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