By MoneyBees
See every payment for your BTO flat from booking to key collection: the option fee, the downpayment, stamp duty and legal fees at the Agreement for Lease, and the balance at keys, split into cash and CPF, with the months between each stage.
The last two apply to flats still being built.
Include any CPF housing grant already credited.
Within 9 months of booking.
Your flat's Probable Completion Date.
Cash at signing
$0
plus $51,644 from CPF
Cash at key collection
$0
plus $68,376 from CPF
Booking to keys
44 months
9 to signing, 35 more to keys
You pay 10% of the price at signing, less the $2,000 option fee, and 15% at key collection, when your $337,500 loan pays the rest. HDB collects the balance at key collection, not in stages while the flat is built.
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| Stage | When | Total | CPF | Cash | Loan |
|---|---|---|---|---|---|
| Booking: option fee | Oct 2026 | $2,000.00 | $0.00 | $2,000.00 | $0.00 |
| Agreement for Lease | Jul 2027 | $51,643.91 | $51,643.91 | $0.00 | $0.00 |
| Key collection | Jun 2030 | $405,876.35 | $68,376.35 | $0.00 | $337,500.00 |
Signing includes stamp duty $8,100 and legal fees $543.91. Keys include $876.35 of survey, registration and Deed of Assignment fees.
Share of the flat price at each stage. The option fee counts towards the first payment.
| Financing | Signing | Cash at least | Keys |
|---|---|---|---|
| HDB housing loan (75%) | 10% | 0% | 15% |
| Bank loan at 75% | 20% | 5% | 5% |
| Bank loan at 55% | 20% | 10% | 25% |
| No loan | 10% | 0% | 90% (balance) |
| Flat type | Option fee |
|---|---|
| 2-room Flexi | $500 |
| 3-room | $1,000 |
| 4-room | $2,000 |
| 5-room | $2,000 |
| Executive | $2,000 |
HDB's example: a S$345,000 4-room with an HDB loan. At signing you owe 10%, or S$34,500, plus S$5,100 stamp duty and S$239.80 legal fee. After the S$2,000 option fee, that is S$37,839.80.
Enter S$345,000, 4-room and HDB loan above and the signing row shows the same figures, plus HDB's legal fee for acting in your mortgage.
Figures checked 3 Oct 2026.
S$2,000 for a 4-room or bigger flat, S$1,000 for a 3-room and S$500 for a 2-room Flexi. It counts towards your downpayment.
Within 9 months of booking an uncompleted flat. For a completed flat, you sign the Agreement for Lease and collect the keys within 9 months of booking.
10% of the price at signing and 15% at key collection, with the HDB loan covering 75%. You can pay it with cash, CPF OA savings or a CPF housing grant.
With a 75% bank loan, 20% at signing (at least 5% in cash) and 5% at key collection. With a 55% loan, 20% at signing (at least 10% in cash) and 25% at keys.
It splits the downpayment into two for a flat still being built. With an HDB loan you pay 5% at signing and 20% at key collection.
No. You pay the option fee at booking, the downpayment and fees at the Agreement for Lease, and the balance at key collection.
Yes. You can use your OA to pay stamp duty and legal fees in full. The option fee is paid in cash.
A survey fee by flat type, registration fees and, with an HDB loan, stamp duty on the Deed of Assignment at 0.4% of the loan, capped at S$500. Second-timers also pay any resale levy in cash at key collection, or from the old flat's sale proceeds if it is sold after they collect the new keys.
These calculators provide general estimates for educational purposes only and are not personalised financial advice. Results may rely on rates and rules that change over time, so verify against official sources (IRAS, CPF Board, HDB, MAS) or consult a licensed financial adviser before making decisions.
Junxiong-WFG Organisation is an authorised representative of AIA Financial Advisers Private Limited (Reg. No. 201715016G).