BTO Progressive Payment Calculator (2026)
Estimate payments at each BTO construction milestone and plan your CPF and cash usage.
What is a Progressive Payment Scheme?
The Progressive Payment Scheme (PPS) spreads the cost of a property under construction across construction milestones over 3 to 5 years instead of requiring full payment upfront. Payments are triggered as the developer (or HDB, for BTO) certifies that each construction stage is completed, from foundation work through to key collection. PPS applies to HDB BTO flats and to new private launches (condos, ECs) sold as Buildings Under Construction (BUC).
Enter the total BTO flat price. Payments are staggered across 11 construction stages from Option to Purchase through Key Collection.
Result updates as you type
Total Payments
$400,000.00
Across 11 construction stages
| Stage | % | Amount | Cumulative |
|---|---|---|---|
| Option to Purchase | 5% | $20,000.00 | $20,000.00(5%) |
| Agreement for Lease | 15% | $60,000.00 | $80,000.00(20%) |
| Foundation | 10% | $40,000.00 | $120,000.00(30%) |
| Reinforced Concrete | 10% | $40,000.00 | $160,000.00(40%) |
| Partition Walls | 5% | $20,000.00 | $180,000.00(45%) |
| Roofing | 5% | $20,000.00 | $200,000.00(50%) |
| Door/Window Frames | 5% | $20,000.00 | $220,000.00(55%) |
| Electrical Wiring | 5% | $20,000.00 | $240,000.00(60%) |
| Car Park/Roads | 5% | $20,000.00 | $260,000.00(65%) |
| Building/Drainage | 25% | $100,000.00 | $360,000.00(90%) |
| Key Collection | 10% | $40,000.00 | $400,000.00(100%) |
BTO progressive payments are spread across construction milestones. The first 20% (OTP + Agreement) is due before construction begins.
Disclaimer
This calculator provides estimates and should not be viewed as a prediction. Actual stamp duty, grant amounts, loan eligibility, and monthly payments may vary due to changing interest rates, policy changes, and individual eligibility. It is not intended to be your sole source of financial guidance.
Rates last verified: 4 Apr 2026.
Verify with HDB (https://www.hdb.gov.sg). Full disclaimer at smartcalculator.sg/disclaimer.
Quick Reference
- • Booking fee: $500 (2-room Flexi), $1,000 (3-room), $2,000 (4-room and above) — cash only
- • Option to Purchase 5% (booking fee credited) + Agreement for Lease 15% = 20% downpayment (CPF eligible)
- • Building completion stage: 25% — the single largest milestone payment
- • CPF OA can be used for all payments after the initial booking fee
- • Payments must be made within 14 days of HDB's milestone certification notice
- • For private property PPS: typically 10 milestone payments (foundation, RC structure, walls, roof, M&E, TOP, CSC) totalling 100%
- • TOP (Temporary Occupation Permit) milestone is typically ~85% cumulative for private property PPS; CSC is the final ~15%
How BTO Progressive Payments Work
When you purchase an HDB BTO flat, you don't pay the full amount upfront. Instead, payments are spread across construction milestonesover 3–5 years. This is known as the progressive payment scheme.
The journey begins with a booking fee ($500 for 2-room Flexi, $1,000 for 3-room, $2,000 for 4-room and above) paid in cash at flat selection — this counts toward the 5% Option to Purchase. When you sign the Agreement for Lease, you pay a further 15% downpayment. Together these form the 20% initial outlay. Subsequent payments are triggered as construction reaches specific milestones.
You can use your CPF Ordinary Account for most payments after the booking fee. Planning your CPF and cash usage early helps ensure you have sufficient funds at each stage. The largest single payment is typically at building completion (25%), so ensure your CPF OA has adequate funds by that point. If you take an HDB loan or bank loan, your mortgage will only be drawn down as milestones are certified — so monthly instalments start small and grow as construction progresses.
Payment Milestones
Booking Fee: $500–$2,000
Cash only, paid at flat selection
Agreement for Lease: 15%
Downpayment minus booking fee, CPF eligible
Construction Stages: 5–10% each
Foundation, framework, walls, roofing, etc.
Building Completion: 25%
Largest single milestone payment
Key Collection: Remaining Balance
Includes stamp duty and legal fees
Private Property PPS: Milestones and Mortgage Drawdown
For new private launches (condos, ECs) sold under construction, the Progressive Payment Scheme follows broadly similar milestone-based logic to HDB BTO, but the percentages and milestones are governed by the Housing Developers Rules and the Sale and Purchase Agreement (S&P).
| Milestone (Typical) | % of Price (Typical) | Notes |
|---|---|---|
| Booking fee / OTP exercise | ~5% | Cash; partly refundable until S&P |
| Sign S&P + stamp duties | ~15% | CPF + cash; BSD/ABSD due here |
| Foundation complete | ~10% | First mortgage drawdown typical |
| RC framework complete | ~10% | Mortgage drawdown |
| Partition walls complete | ~5% | Mortgage drawdown |
| Roofing / ceiling complete | ~5% | Mortgage drawdown |
| Door/window frames complete | ~5% | Mortgage drawdown |
| Electrical, plumbing complete | ~5% | Mortgage drawdown |
| Carpark, roads, drains complete | ~5% | Mortgage drawdown |
| TOP (Temporary Occupation Permit) | ~25% | Largest single milestone; keys collected |
| CSC (Certificate of Statutory Completion) | ~15% | Final balance; ~12 months after TOP |
Exact percentages and milestone definitions are set in your individual Sale & Purchase Agreement and may vary slightly between developers. Treat the figures above as indicative of the typical PPS structure. Cumulative at TOP is typically ~85%, with the final ~15% due at CSC.
Who This Calculator Is For
HDB BTO Buyers
First-time buyers awaiting key collection on a new HDB BTO flat.
- Booking fee: $500–$2,000 cash at selection
- Initial outlay: 20% (5% OTP + 15% AfL)
- CPF usage: Allowed after booking fee
- Timeline: 3–5 years to key collection
EC / Private Condo Buyers (BUC)
Buyers of Executive Condos or private condos sold as Buildings Under Construction.
- PPS milestones: ~10 milestones plus TOP and CSC
- Mortgage: Drawn down progressively as milestones certified
- Stamp duty: BSD/ABSD due near signing of S&P
- EC additional rules: CPF Housing Grant, MOP applies
Mortgage Brokers and Bankers
Professionals structuring loan drawdowns and instalment schedules for clients.
- Drawdown logic: Mortgage tranche per certified milestone
- Instalment progression: Interest-only stepping up as drawdowns increase
- TDSR/MSR: Tested at full loan amount, not progressive drawdown
- Refinance: Typically locked until TOP/CSC
CPF / Cash Flow Planners
Buyers planning ahead so each milestone is covered without scrambling.
- Reserve target: Have 25% liquid by building-completion milestone
- CPF projection: Forecast OA balance growth over construction period
- Cash buffer: Hold stamp duty + legal fees in cash from Day 1
- Contingency: Plan for delayed construction shifting milestones
Progressive Payment vs Deferred Payment vs Completed Property
Three different payment structures for buying property in Singapore. PPS dominates today for new-build purchases; DPS was discontinued in 2007; resale/completed purchases use the standard upfront-at-completion structure.
| Feature | Progressive Payment (PPS) | Deferred Payment (DPS) | Completed Property |
|---|---|---|---|
| Applies to | HDB BTO + private BUC | Discontinued (pre-2007 private launches) | Resale HDB, completed condos, landed |
| Status today | Active — default for new builds | No longer offered (URA, Oct 2007) | Active — resale market |
| When you pay | In stages as milestones certified | ~20% upfront, balance at TOP | Full price at completion of sale |
| Mortgage drawdown | Progressive, milestone-based | Mostly at TOP | Single drawdown at completion |
| Buyer's cash flow | Spread over 3–5 years | Light during construction | Full liquidity needed at purchase |
| Mortgage starts | From first drawdown (small) | At TOP (full) | At completion (full) |
| Typical buyer profile | First-time / new-build buyer | N/A (legacy scheme) | Resale buyer, upgrader, investor |
The Deferred Payment Scheme was withdrawn by URA in October 2007 to cool speculation on uncompleted properties. Today, most uncompleted property purchases default to PPS.
Frequently Asked Questions
What are the BTO progressive payment stages?expand_more
BTO progressive payments follow HDB construction milestones: (1) Option to Purchase — 5% (booking fee $500–$2,000 counts toward this, balance paid at OTP exercise), (2) Agreement for Lease — 15% downpayment, (3) Foundation stage — 10%, (4) Reinforced concrete framework — 10%, (5) Partition walls — 5%, (6) Roofing — 5%, (7) Door and window frames — 5%, (8) Electrical wiring — 5%, (9) Car park, roads, drains — 5%, (10) Building/drainage completion — 25%, (11) Key collection — remaining 10% plus stamp duty and fees. Totals to 100%. The largest milestone is the 25% at building completion, typically drawn from the mortgage.
Can I use CPF for BTO progressive payments?expand_more
Yes, you can use your CPF Ordinary Account (OA) savings for most BTO progressive payments, including the downpayment (after the initial booking fee which must be in cash). CPF can be used to pay for the purchase price, stamp duty, and legal fees. The amount you can withdraw is subject to CPF's Valuation Limit and withdrawal limits based on your OA balance.
When is each progressive payment due?expand_more
Each progressive payment is triggered when HDB certifies that a construction milestone has been reached. You will receive a notice from HDB to make payment within 14 days of the milestone certification. The entire process from booking to key collection typically takes 3-5 years for BTO flats, depending on the project timeline.
What happens if I cannot make a progressive payment on time?expand_more
If you fail to make a progressive payment within 14 days of HDB's notice, HDB may charge interest on the overdue amount. Persistent non-payment could result in forfeiture of the flat and the payments already made. If you face genuine financial difficulties, you should contact HDB early to discuss possible arrangements such as using more CPF savings or restructuring the payment schedule.
What happens if the developer or HDB delays construction?expand_more
For HDB BTO flats, payments are tied to milestone certification — if construction is delayed, the next milestone payment is simply delayed too, which gives buyers more time to accumulate CPF/cash. HDB has historically completed flats within the stated estimated completion date (or with notification of delay). For private property under the Progressive Payment Scheme (PPS), delays in construction also push back milestone drawdowns, but the Sales & Purchase Agreement specifies the latest completion date and Liquidated Damages payable by the developer if it is exceeded (typically based on the Housing Developers Rules).
Can I switch from progressive payments to deferred payment mid-construction?expand_more
For HDB BTO flats, no — the payment scheme is fixed by HDB and cannot be switched mid-project. For private property buyers, the Deferred Payment Scheme (DPS) was discontinued by URA in late 2007 and replaced by the Normal Payment Scheme (NPS) / standard PPS. Older projects under DPS retained that scheme, but new launches today are on PPS only. You cannot retroactively switch from PPS to a DPS-style structure unless the developer specifically offers such a scheme (rare and regulated).
Why do mortgage payments increase as construction progresses?expand_more
Under the Progressive Payment Scheme, your bank only disburses (drawdowns) the mortgage portion of each milestone as the milestone is certified. Your monthly mortgage instalment is calculated only on the amount drawn down so far — not on the full loan amount. So early in construction (when little has been drawn), your monthly mortgage is small. As more milestones are certified and more is drawn down, your monthly instalment grows. Once the property is completed and the full loan is drawn, you pay the full monthly instalment on the full principal. Plan your cash flow expecting payments to step up over the construction period.
Does the progressive payment scheme apply to resale HDB flats or completed condos?expand_more
No. Progressive Payment Scheme (PPS) applies only to Buildings Under Construction (BUC) — primarily HDB BTO flats and new private launches (condos, ECs) sold before TOP. For resale HDB flats and completed (Certificate of Statutory Completion or TOP) private properties, you pay the full purchase price upfront (using a combination of cash, CPF, and a mortgage that is fully disbursed at completion of the sale). Use the HDB Affordability Calculator or Mortgage Calculator for those cases.
Sources
- • HDB — BTO progressive payment schedule and milestones (hdb.gov.sg)
- • CPF Board — CPF OA usage for BTO and private property progressive payments (cpf.gov.sg)
- • URA — Withdrawal of Deferred Payment Scheme (October 2007) and Progressive Payment milestones for private property
- • Housing Developers Rules — Schedule of Progressive Payments for sale of uncompleted private residential property