Here’s a reassuring fact for anyone worried that selling their HDB will drain their savings: the CPF you refund when you sell doesn’t vanish — it lands back in your Ordinary Account, ready to fund your next home. For most upgraders, that refunded OA balance is the engine of the condo downpayment.
But there’s a timing trap that catches the unprepared, and a slice of the downpayment that CPF can never cover. Let me walk through exactly how CPF flows into your condo purchase, and why the order of your transactions decides whether the money is there when you need it.
The calculator splits your downpayment into the mandatory cash portion and what your CPF can fund.
The downpayment, split into cash and CPF
On a private condo with a 75% loan, your 25% downpayment is not a single blob — it’s split by source:
| Component | % of price | Can it be paid by CPF? |
|---|---|---|
| Minimum cash downpayment | 5% | No — cash only |
| Remaining downpayment | 20% | Yes — cash or CPF OA |
So on a $1.5M condo, the $75,000 (5%) must be cash, no exceptions. The other $300,000 (20%) can come from your CPF OA, your cash, or any mix. Your Buyer’s Stamp Duty can also be paid from CPF OA (for a resale/completed property, paid directly; for some purchases, on a reimbursement basis).
Where the CPF comes from: your refund
When your HDB sale completes, the CPF principal you used plus all its accrued interest is refunded to your OA — often $200,000–$300,000 for a long-held flat. That balance is then available to fund the CPF-eligible 20% of your condo downpayment and your stamp duties. The mechanics of that refund (and why it’s bigger than people expect) are in How Much CPF Do You Get Back? and CPF Accrued Interest Explained.
This is the elegant part of a well-sequenced upgrade: the CPF that leaves one home flows into the next, restored and ready.
The sequence trap
Now the warning. CPF refunded from your HDB sale only appears in your OA after the sale completes. That creates a problem if you buy first:
- Sell first, then buy: Your HDB sale completes, the refunded CPF is sitting in your OA, and you draw on it for the condo downpayment. Clean and fully funded.
- Buy first, then sell: At the point you exercise the condo Option, your HDB hasn’t sold yet — so the refund isn’t in your OA. You must fund the entire downpayment (and ABSD, and BSD) from your current CPF balance and cash, before the refund arrives.
For buy-first upgraders, this is often the real constraint — not the loan, but having enough CPF and cash on hand before the sale unlocks the rest. It’s one more reason the buy-first path demands strong reserves, as I explain in Can You Buy a Condo Before Selling Your HDB?.
Limits on using CPF for private property
Two CPF rules shape how much OA you can ultimately pour into the condo:
- Valuation Limit (VL): You can use CPF up to the property’s value (or purchase price, whichever is lower) for the property itself.
- Withdrawal Limit (WL): Beyond the VL, further CPF use is capped at 120% of the VL — and only if you’ve set aside your Basic Retirement Sum in CPF (OA + Special Account). Older upgraders close to retirement should check this carefully, as it can restrict how much OA you may deploy.
For most working-age upgraders, the VL/WL ceilings sit comfortably above what they actually need, but it’s worth confirming your position with CPF before assuming the full OA balance is available.
A quick funding picture ($1.5M condo, sell first)
| Need | Amount | Funded by |
|---|---|---|
| 5% cash downpayment | $75,000 | Cash only |
| 20% downpayment | $300,000 | CPF OA (from refund) + cash |
| BSD | $44,600 | CPF OA or cash |
| Total at purchase | $419,600 | Cash + refunded CPF |
If the HDB refund put ~$240,000 back into the OA, that comfortably covers the 20% portion and BSD via CPF, leaving the couple to find the $75,000 cash floor (plus a buffer) from savings.
The bottom line
Yes — CPF OA refunded from your HDB sale can and usually does fund the bulk of your condo downpayment, plus your BSD. But 5% of the price must always be cash, and the refunded CPF is only available after your sale completes. Sell first and the money is there when you need it; buy first and you must front everything from your existing balances. Plan the sequence around your CPF, not just your loan.
Net cash from your HDB sale, ABSD exposure, and the condo budget you can actually afford — worked out in about 2 minutes.
General information for Singapore HDB upgraders, not financial advice. CPF usage rules (VL, WL, BRS) are set by the CPF Board and can change. Confirm your available OA and limits at cpf.gov.sg before committing.