Accrued interest is the interest your Central Provident Fund Ordinary Account savings would have earned at the Ordinary Account floor rate of 2.5% per annum had you never withdrawn them for property. When you sell or transfer a home bought with CPF, you must refund the principal withdrawn plus this accrued interest before any cash proceeds reach you. Voluntary refunds made earlier can reduce what you owe later.
TL;DR:
- The Ordinary Account floor rate is 2.5% per year; interest is calculated monthly, credited annually, and compounds after each yearly credit.
- Your refund includes CPF used for instalments, duties, legal fees, and grants, with interest traced from each withdrawal’s date, not just the down payment.
- Once the mortgage is settled, CPF receives its refund before cash is released; members 55 and older may need to top up a Retirement Account.
- If sale proceeds at market value cannot cover the full refund, you do not have to pay the shortfall in cash.
- A voluntary refund lowers future accrued interest, and refunded money starts earning Ordinary Account interest again; check the Home Ownership Dashboard before acting.
Table of Contents
- What accrued interest is and why CPF requires it
- How accrued interest is calculated, with a worked example
- What must be refunded when you sell or transfer your property
- Voluntary housing refunds: reducing what you owe later
- How to check your accrued interest and refund amount
- A worked illustration of accrued interest over time
- What this means for your next property move
- Model your refund and net proceeds before you sell
- FAQ
- Sources
What accrued interest is and why CPF requires it
Accrued interest is not a penalty charged for using your CPF savings to buy a home. It is the opportunity cost of removing money from your Ordinary Account, where it would otherwise have compounded over the years. The Ordinary Account floor rate has held at 2.5% per annum consistently through 2026, and this is the benchmark rate used to compute accrued interest on every dollar withdrawn for housing.
The policy rationale is straightforward: CPF exists primarily to fund retirement, and housing withdrawals are a permitted exception rather than the primary purpose of the scheme. Requiring a full refund, principal plus accrued interest, on sale or transfer restores the Ordinary Account to roughly the position it would have held had the withdrawal never happened. This protects the member's long-term retirement adequacy even after a property transaction concludes.
A few points follow directly from this design:
- Accrued interest accumulates on every CPF dollar withdrawn, not only on the original down payment.
- The rate applied tracks the Ordinary Account floor rate, which has stayed at 2.5% per annum.
- The obligation applies whether you sell at a profit, at a loss, or transfer ownership without a sale.
How accrued interest is calculated, with a worked example
CPF interest is computed monthly and compounded, but credited to accounts only once a year. This distinction matters: interest earned in January does not itself start earning interest until it is credited at year end, so the compounding effect builds steadily across the calendar year rather than month by month.
In practice, accrued interest reflects the amount withdrawn and the time it was used for housing. CPF interest is computed monthly and credited annually.
A simplified illustration shows the shape of the effect over time:
- Suppose $100,000 is withdrawn from the Ordinary Account for a flat purchase.
- At the 2.5% per annum floor rate, the first year accrues roughly $2,500 in interest, computed monthly and credited at year end.
- In year two, interest is calculated on $102,500, producing a slightly larger amount than year one.
- Over a decade with no further withdrawals and no voluntary refunds, the compounding effect means the total refundable amount grows well beyond the simple sum of $100,000 plus ten flat interest payments.
The Ordinary Account floor rate has remained at 2.5% per annum consistently through 2026, so this is the figure to use when projecting your own accrued interest liability over any holding period.
What must be refunded when you sell or transfer your property
The mandatory refund on sale or transfer is broader than most owners expect. It covers every CPF dollar that went towards the property, not just the original withdrawal for the purchase price.
- The principal withdrawn for the down payment and any subsequent monthly instalments paid from CPF.
- Stamp duties and legal fees, where these were settled using CPF savings.
- Any CPF housing grants received, which are fully refundable to your own CPF account.
- Accrued interest calculated from each withdrawal's own date, not from a single blended start date.
On completion of a sale, the outstanding home loan is settled first, then the CPF refund of principal plus accrued interest follows, with any remainder paid out in cash. Members aged 55 and above face an additional rule: part of the proceeds may need to top up their Retirement Account towards the Full Retirement Sum before cash is released. Where sale proceeds at market value fall short of covering the full refund, members are not required to make up the difference in cash.
Voluntary housing refunds: reducing what you owe later
A voluntary housing refund, commonly abbreviated VHR, lets a member repay some or all of the principal and accrued interest owed on a property before any sale or transfer takes place. CPF guidance confirms that refunded amounts resume earning CPF interest once they are back in the Ordinary Account, rather than sitting as an outstanding liability that keeps accumulating interest against you.
The practical benefits are twofold. First, the earlier a refund is made, the less accrued interest builds up between now and any eventual sale. Second, a smaller mandatory refund at the point of sale generally means larger cash proceeds reach the seller's hand.
- A VHR reduces the outstanding balance on which future accrued interest is calculated.
- Refunded sums begin earning Ordinary Account interest again from the date of refund.
- The approach suits members with spare cash, those planning a sale within a few years, or anyone wanting to rebuild retirement savings sooner.
Pro Tip: Run the numbers before committing cash to a voluntary refund, since the benefit depends on how many years remain before you expect to sell.
How to check your accrued interest and refund amount
The Home Ownership Dashboard shows the running total of principal and accrued interest owed on a property, updated to reflect the latest crediting cycle. This is the first place to check before planning a sale, transfer, or voluntary refund.
- Log in to the Home Ownership Dashboard to view the current computed refund figure for your property.
- Use the voluntary housing refund e-form when ready to make a partial or full refund, having your property and CPF account details ready.
- Verify figures well ahead of any sale completion date, and contact CPF directly for unusual situations such as joint ownership splits or part transfers.
A worked illustration of accrued interest over time
CPF Board's own guidance frames the refund requirement as restoring the opportunity cost members would otherwise have lost by withdrawing Ordinary Account savings for housing rather than leaving them to compound. As an illustration only: a household that made a substantial withdrawal and no voluntary refunds could see accrued interest layered on top of that principal by the time of sale. Before assuming what your own proceeds might look like, modelling affordability and valuation together gives a clearer picture than estimating accrued interest alone.
What this means for your next property move
Most owners underestimate how much accrued interest compounds over a long holding period, partly because the annual crediting cycle masks the monthly build-up until the yearly statement arrives — a topic well covered in this CPF accrued interest, property checklist for Singapore sellers. The practical priority is twofold: keep a reasonable Ordinary Account buffer rather than withdrawing every available dollar for a purchase, and treat a voluntary refund as a planning tool rather than an afterthought once a sale is already in motion. Readers weighing mortgage affordability decisions should factor accrued interest into that calculation from the outset, not bolt it on at the point of sale.
— HAIO
Model your refund and net proceeds before you sell
Working out what you will actually pocket after a CPF refund takes more than knowing the accrued interest rate. Our Affordability tool lets you test different voluntary refund scenarios against your mortgage servicing capacity, so you can see how repaying CPF early today changes your position at the point of sale. Pair that with our Valuation Analysis to get a current estimate of what your property might fetch, and the two together give a realistic read on net cash proceeds after both the loan and the CPF refund are settled.
- Use Affordability to test how a voluntary refund now affects your monthly servicing capacity.
- Use Valuation Analysis to estimate current market value before projecting net proceeds.
- Combine both to model the gap between a sale today and a sale after further voluntary refunds.
If you are planning a sale within the next few years, start with a valuation check on your property type to see where current pricing sits relative to your outstanding CPF liability.
FAQ
Is accrued interest a penalty for using CPF on housing?
No. It restores the interest your Ordinary Account savings would have earned at the 2.5% per annum floor rate had you not withdrawn them, rather than punishing you for the withdrawal itself. CPF frames this as protecting retirement adequacy, not as a charge for borrowing from yourself.
Does accrued interest apply to HDB, EC and private property alike?
The accrued interest mechanism applies the same way to any residential property bought using CPF Ordinary Account savings, whether an HDB flat, an executive condominium or a private property. What differs is the amount withdrawn and the withdrawal limits tied to valuation and loan type, not the interest calculation method itself.
Can I avoid refunding accrued interest when I sell?
No, the refund of principal plus accrued interest is mandatory on sale or transfer of a property bought with CPF savings. Making voluntary refunds earlier reduces the amount owed at that point rather than removing the obligation.
What happens if sale proceeds cannot cover the full CPF refund?
Where proceeds at market value are insufficient to cover the full principal and accrued interest owed, members are not required to top up the shortfall in cash. The CPF refund rules on sale or transfer set out how this shortfall is treated, including special provisions for members aged 55 and above.
How do I check how much accrued interest I currently owe?
The Home Ownership Dashboard on the CPF member portal shows the current computed total of principal and accrued interest owed on your property, updated after each annual crediting cycle. You can also use the voluntary housing refund e-form if you wish to reduce that balance ahead of a planned sale.