Singapore's Progressive Payment Scheme (PPS) spreads a new launch purchase across 10 construction milestones — from 5% booking fee to 15% at CSC — so your bank loan disburses in step with the build, minimising interest during construction and giving you years of cash-flow breathing room before full mortgage repayments begin (as of 2026-06).
Signing a Sale and Purchase Agreement before a building exists is one of the most consequential financial commitments a Singapore buyer makes. Unlike a resale purchase — where you hand over 25% on completion day and the bank wires the balance in one shot — a new launch under the Progressive Payment Scheme ties every dollar you owe to a specific construction milestone certified by the developer's architect. The result is a graduated cash-flow profile: modest outflows during the build years, a significant peak at Temporary Occupation Permit (TOP), and a final settlement at the Certificate of Statutory Completion (CSC). Understanding each stage — the exact percentage due, what triggers it, and how your bank loan interacts with it — is the difference between a smooth four-year journey and a series of expensive surprises. This guide covers the standard 2026 milestone table, a full worked cash-flow example on a S$1.2 million unit, the progressive-interest advantage over resale, and a practical planning checklist for every stage of the build.
The Legal Framework Behind PPS
The Progressive Payment Scheme is not a developer invention — it is mandated by the Housing Developers Rules (Cap. 130A, HDR) and the standard Sale and Purchase Agreement prescribed by the Controller of Housing under the Housing Developers (Control and Licensing) Act. Every private residential project in Singapore sold under a standard S&P Agreement follows the same milestone schedule. Developers cannot shorten the stages, combine milestones, or demand early payment; buyers have statutory protection on both the timing and the percentages. The Urban Redevelopment Authority (URA) publishes the prescribed S&P format, and all new launch transactions must be lodged with URA's REALIS system.
A parallel protection exists through the project account requirement. Under the Housing Developers Rules, developers must maintain a dedicated project account with an approved bank, into which all buyer payments are deposited. Withdrawals from this account are governed by the rules — a developer cannot raid the project account to fund other ventures. This is the mechanism that protects buyers if a developer encounters financial difficulty mid-construction: the funds are ring-fenced and available to complete the project or refund buyers in a controlled manner. Project account oversight is a key distinction between Singapore's BUC (Building Under Construction) market and many overseas new-launch markets where buyer deposits are less protected.
Standard PPS Milestone Table (as of 2026-06)
The ten-stage schedule below applies to all standard new launch private residential projects. Each instalment is payable within 14 days of the developer's architect issuing a certificate confirming that stage is complete. The percentages are of the purchase price (not market valuation), and they are non-negotiable under the standard S&P.
| Stage | Milestone | % of Purchase Price | Cumulative % |
|---|---|---|---|
| 1 | Booking fee — on exercise of Option to Purchase (OTP) | 5% | 5% |
| 2 | Signing of S&P Agreement (within 8 weeks of OTP exercise) | 15% | 20% |
| 3 | Foundation works complete | 10% | 30% |
| 4 | Reinforced concrete (RC) framework complete | 10% | 40% |
| 5 | Partition / brick walls complete | 5% | 45% |
| 6 | Roofing and ceiling complete | 5% | 50% |
| 7 | Doors, window frames, electrical wiring, and plumbing complete | 5% | 55% |
| 8 | Car park, roads, and drains complete | 5% | 60% |
| 9 | Temporary Occupation Permit (TOP) issued | 25% | 85% |
| 10 | Certificate of Statutory Completion (CSC) issued | 15% | 100% |
Three structural features of this table deserve close attention. First, the 5% booking fee at Stage 1 is cash-only — it cannot be sourced from CPF or the bank loan, and it is paid the moment you exercise the OTP, before any S&P is signed. Second, Stages 3 through 8 collectively represent only 40% of the price but are spread over the longest period — typically 24 to 36 months — providing the maximum cash-flow relief. Third, the 25% at TOP is the single largest post-booking payment and the point at which your loan is drawn to a level where full amortising repayments begin. The 15% at CSC, which follows 6–18 months after TOP, catches some buyers off guard if they assumed the mortgage was fully settled at TOP.
Buying a new launch condominium in Singapore means signing before a single brick is laid. Instead of handing over the full purchase price at one go, you pay in stages as the building rises — a system known as the Progressive Payment Scheme (PPS). Every payment is tied to a specific construction milestone certified by the developer's architect, so your cash outflow is spread across three to five years from booking to Temporary Occupation Permit (TOP). Understanding exactly when each instalment falls due, how much it costs, and how your bank loan interacts with each stage is essential before you exercise the Option to Purchase.
This guide covers the standard 2026 PPS milestone schedule, a full worked example on a S$1.2 million new launch, how interest accumulates only on the portion of your loan that has been drawn down, a head-to-head comparison with the Deferred Payment Scheme, and practical tips for managing cash flow over the construction period. For the complete upfront cost picture — including stamp duties and legal fees — see our Complete Condo Purchase Cost Breakdown.
Overview: How the Progressive Payment Scheme Works
The Progressive Payment Scheme is the standard and default payment structure for all new launch private condominiums sold under a Sale and Purchase Agreement (S&P) in Singapore. It is governed by the Housing Developers Rules and the standard S&P Agreement prescribed by the Controller of Housing. Developers cannot unilaterally modify the milestone schedule — every buyer of a new launch unit in 2026 follows the same payment structure unless they specifically opt for a Deferred Payment Scheme at a price premium (discussed below).
Under PPS, payment is divided into a booking fee paid immediately, then a series of instalments linked to construction progress. Each instalment becomes payable within 14 days of the developer's architect certifying that the relevant stage of construction is complete. The certificate is issued to both the developer and the buyer's conveyancing lawyer; your lawyer will notify you when each payment falls due.
The key financial benefit of PPS is that your bank loan is also drawn down progressively — the bank disburses funds only as each milestone is certified. This means you are paying interest only on the amount actually disbursed, not on the full approved loan quantum. In the early stages of a project, when only the booking fee and one or two instalments have been paid, your monthly interest liability is a fraction of what it will be at TOP. This built-in cash flow relief is one of the most underappreciated advantages of buying new launch over resale.
Standard PPS Milestones and Payment Percentages
The milestone schedule prescribed under the Housing Developers Rules divides the purchase price into the following stages. The percentages below apply to the purchase price (not valuation), and each is payable within 14 days of the architect's certification:
| Stage | Milestone | % of Purchase Price | Cumulative % Paid |
|---|---|---|---|
| 1 | Booking fee (upon exercise of OTP) | 5% | 5% |
| 2 | Signing of S&P Agreement (within 8 weeks of booking) | 15% | 20% |
| 3 | Foundation works complete | 10% | 30% |
| 4 | Reinforced concrete framework complete | 10% | 40% |
| 5 | Partition walls complete | 5% | 45% |
| 6 | Roofing / ceiling complete | 5% | 50% |
| 7 | Doors, windows, electrical wiring, and plumbing complete | 5% | 55% |
| 8 | Car park, roads, and drains complete | 5% | 60% |
| 9 | Temporary Occupation Permit (TOP) issued | 25% | 85% |
| 10 | Certificate of Statutory Completion (CSC) issued | 15% | 100% |
A few points deserve emphasis. First, the 5% booking fee is paid in cash — it cannot come from CPF or the bank loan, and it is paid when you exercise the Option to Purchase, before any S&P Agreement is signed. Second, the Stage 2 payment of 15% (bringing the running total to 20%) is due at S&P signing and typically includes the IRAS BSD ratesBuyer's Stamp Duty (BSD), which your conveyancing lawyer will arrange from CPF OA or cash at this point. Third, Stages 3 through 8 (the six construction milestones) collectively account for only 40% of the price but are spread over the longest period — typically 2 to 3 years — giving buyers the most breathing room. The largest single payment after the booking sequence is the 25% at TOP, which is when the bulk of the bank loan is disbursed and your mortgage monthly repayments begin in earnest.
Cash Flow Timeline: What You Actually Pay Each Year
The progressive structure means your cash outflow is heavily front-loaded in the first few months (booking + S&P), then relatively modest during construction, before spiking at TOP and again at CSC. A typical cash flow timeline across a 4-year project looks like this:
| Approximate Period | Milestone(s) | Cumulative % Due | Cash Flow Character |
|---|---|---|---|
| Month 0 – 2 | Booking + S&P signing | 20% | High — initial downpayment phase |
| Year 1 – 2 | Foundation + RC framework | 40% | Moderate — two 10% tranches, months apart |
| Year 2 – 3 | Partitions + roofing + doors/windows + car park | 60% | Lower — four 5% tranches spread over ~12 months |
| Year 3 – 4 | TOP | 85% | High — largest single tranche, loan draw peaks |
| Year 4 – 5 | CSC | 100% | Moderate — final settlement, loan fully drawn |
The gap between Stages 3–8 milestones is typically 4–8 months each. This spacing gives buyers substantial time between payments to accumulate savings, allow CPF OA to rebuild from monthly contributions, or redeploy funds from other investments. By contrast, a resale purchase requires the full 25% downpayment in a single lump sum on completion day — with no comparable breathing room.
Progressive Payment Scheme vs Deferred Payment Scheme
Some developers — typically for high-end or slower-selling projects — offer a Deferred Payment Scheme (DPS) as an alternative. Under DPS, the buyer pays a larger upfront sum (typically 20% at signing) and then defers the remaining 80% to TOP, when the full loan is drawn in one disbursement. DPS was banned during the 2008–2012 period and re-emerged on a selective basis. In 2026 it remains available on select projects but is far less common than PPS.
| Feature | Progressive Payment Scheme (PPS) | Deferred Payment Scheme (DPS) |
|---|---|---|
| Upfront payment | 5% booking + 15% at S&P = 20% total | Typically 20% at S&P signing |
| Payment during construction | 40% in staged tranches | None — entire balance deferred |
| Balance due at TOP | 25% (plus 15% at CSC) | 80% in one payment |
| Loan drawn progressively | Yes — interest on disbursed amount only | No — full loan drawn at TOP |
| Interest during construction | Low and rising — only on disbursed tranches | Zero until TOP |
| Typical price premium | None — standard scheme | 2% to 3% above standard price |
| Cash flow advantage | Staged outflows; loan interest low early on | Zero cash outflow during construction |
| Risk | Interest creep as more tranches are drawn | Large lump sum required at TOP; full loan from day one |
| Best suited for | Most buyers; CPF users; income-earning buyers | Cash-rich buyers; those with large illiquid holdings to monetise before TOP |
The 2–3% DPS price premium is the critical consideration. On a S$1.2 million unit, a 2.5% premium is S$30,000 — a significant amount that you are effectively paying to delay cash outflows during construction. For most salaried buyers in Singapore, PPS is the superior choice: monthly CPF contributions build up the OA balance steadily during construction, effectively pre-funding each milestone payment. Only buyers who have identified that they will have a large liquidity event (property sale, business exit, significant inheritance) before TOP should seriously evaluate DPS at a premium.
Worked Example: S$1.2M New Launch, First-Time SC Buyer
Meet Jing Wei, a 31-year-old Singapore Citizen buying her first private condominium — a new launch unit at S$1,200,000. She has S$180,000 in her CPF OA and S$80,000 in cash savings. She earns S$9,000/month gross, contributing approximately S$1,702/month to her OA from payroll (at the OW ceiling). The bank has approved a 75% LTV loan of S$900,000. Stamp duties: BSD on S$1.2M = S$32,600 (first SC purchase; 0% ABSD). She opts for the standard PPS.
| Stage | Milestone | % Due | S$ Amount | Source | Running CPF Used | Running Loan Drawn |
|---|---|---|---|---|---|---|
| 1 | Booking fee | 5% | S$60,000 | Cash (mandatory) | — | — |
| 2 | S&P signing + BSD | 15% + BSD | S$180,000 + S$32,600 | CPF OA: S$180,000; Cash (BSD): S$32,600 | S$180,000 | — |
| 3 | Foundation complete (~12 months) | 10% | S$120,000 | Loan drawdown | S$180,000 | S$120,000 |
| 4 | RC framework complete (~20 months) | 10% | S$120,000 | Loan drawdown | S$180,000 | S$240,000 |
| 5 | Partition walls (~26 months) | 5% | S$60,000 | Loan drawdown | S$180,000 | S$300,000 |
| 6 | Roofing / ceiling (~30 months) | 5% | S$60,000 | Loan drawdown | S$180,000 | S$360,000 |
| 7 | Doors, windows, electrical (~34 months) | 5% | S$60,000 | Loan drawdown | S$180,000 | S$420,000 |
| 8 | Car park, roads, drains (~38 months) | 5% | S$60,000 | Loan drawdown | S$180,000 | S$480,000 |
| 9 | TOP (~42 months) | 25% | S$300,000 | Loan drawdown: S$300,000 | S$180,000 | S$780,000 |
| 10 | CSC (~54 months) | 15% | S$180,000 | Loan drawdown: S$120,000; CPF OA: S$60,000* | S$240,000 | S$900,000 |
*By CSC (month 54), Jing Wei's OA has been rebuilt through payroll contributions: 54 months × S$1,702 = approximately S$91,900 of new contributions, minus any partial mortgage top-ups she made from CPF during construction. She applies S$60,000 of her rebuilt OA to the CSC payment. The remaining S$120,000 of the CSC instalment is covered by the final loan drawdown, bringing the total loan to the approved S$900,000.
Cash Outflow Summary
| Item | Amount | Source |
|---|---|---|
| Booking fee (Stage 1) | S$60,000 | Cash |
| BSD (at S&P signing) | S$32,600 | Cash (or CPF OA — Jing Wei pays cash to preserve OA) |
| S&P downpayment (Stage 2 — 15%) | S$180,000 | CPF OA |
| Stages 3–8 (construction milestones) | S$360,000 | Bank loan drawdowns |
| TOP (Stage 9 — 25%) | S$300,000 | Bank loan drawdown |
| CSC (Stage 10 — 15%) | S$180,000 | S$120,000 loan + S$60,000 CPF OA (rebuilt) |
| Legal / conveyancing fees (est.) | S$3,500 | Cash |
| Total cash out-of-pocket | ~S$96,100 | Cash |
| Total CPF used | S$240,000 | CPF OA |
| Total bank loan drawn at CSC | S$900,000 | Bank |
Jing Wei's total cash outlay over the 4.5-year construction period is approximately S$96,100 — a modest sum relative to the S$1.2 million purchase price, spread across multiple years. The progressive structure allowed her initial S$80,000 cash savings to cover the booking fee and BSD comfortably, while CPF OA handled the S&P downpayment and eventually contributed to the CSC balance.
Interest During Construction: How Progressive Drawdown Saves You Money
For resale properties, the bank disburses the full approved loan on completion day. From that day forward, you pay interest on the entire loan balance. For a new launch under PPS, the bank disburses progressively — and you pay interest only on the amount actually drawn. This distinction is financially significant.
Continuing Jing Wei's example, assuming a 3.5% p.a. interest rate:
| Period | Loan Drawn (Cumulative) | Approx. Monthly Interest | Notes |
|---|---|---|---|
| Months 1–12 (foundation) | S$0 | S$0 | No loan drawn yet |
| Month 12–20 (after foundation cert) | S$120,000 | ~S$350/month | Only S$120K drawn |
| Month 20–26 (after RC framework) | S$240,000 | ~S$700/month | Two tranches drawn |
| Month 26–38 (partitions, roof, doors/windows) | S$300,000–S$420,000 | ~S$875–S$1,225/month | Progressive increase |
| Month 38–42 (car park to TOP) | S$480,000 | ~S$1,400/month | Pre-TOP phase |
| Post-TOP (full mortgage begins) | S$780,000–S$900,000 | ~S$2,275–S$2,625/month | Full repayment schedule starts |
Across the 42 months before TOP, Jing Wei pays cumulative interest of approximately S$25,000–S$30,000 — well below the S$105,000 she would have paid if the full S$900,000 had been drawn on day one at the same rate. This pre-TOP interest is typically paid monthly in cash (not from CPF), and is a cost that buyers should explicitly budget for. Banks may also offer a "capitalisation" option for pre-TOP interest on some products — where interest accrues and is added to the loan balance rather than being paid monthly — but this increases the total loan quantum and is generally discouraged for buyers with the cash flow to service interest payments directly.
Tips for Managing PPS Cash Flow
1. Reserve Cash Separately for Each Construction Milestone
After the booking and S&P payments, Stages 3–8 are funded by bank loan drawdowns — you typically do not need to write a personal cheque. However, the bank's disbursement goes directly to the developer; your lawyer manages the paperwork. Ensure you are not inadvertently counting on funds that are already earmarked for other purposes when a milestone certificate arrives.
2. Track Your CPF OA Rebuild Rate
From the moment of the S&P downpayment drawdown, your OA balance starts rebuilding from monthly payroll contributions. Know your monthly OA inflow (approximately 23% of wages up to the OW ceiling of S$7,400). Over 3–4 years of construction, a salaried buyer at the ceiling will accumulate S$60,000–S$80,000 in fresh OA contributions — material for the CSC payment or for commencing mortgage servicing from CPF post-TOP.
3. Budget for Pre-TOP Interest as a Cash Expense
Many first-time buyers are caught off guard by the monthly bank interest that begins when the first construction milestone loan drawdown is made. Budget S$350–S$1,500/month for pre-TOP interest depending on the project's construction pace, and treat it as a fixed cash cost alongside rental (if you are renting during construction).
4. Avoid Over-Committing CPF at S&P Signing
The S&P downpayment (15% at Stage 2) plus BSD is the largest single CPF withdrawal you will make during the construction period. Resist the temptation to also draw CPF for legal fees or other ancillary costs at this point — preserving OA balance keeps the accrued interest base lower and ensures you have a buffer for unexpected needs. Every dollar left in CPF earns a guaranteed 2.5% p.a.
5. Synchronise Your Housing Plans With the TOP Timeline
If you are currently renting, your rental lease expiry should ideally align with the expected TOP date. A 3-month buffer between TOP and lease end gives you time to complete the defect inspection process, renovate, and move in without double-paying rent and mortgage. Build the estimated TOP window into your tenancy renewal decisions from booking onwards. See our guide on Defect Liability Period Rights for what to do in the weeks after TOP.
6. Model DPS Against PPS Before Committing
If a developer offers DPS at a 2–3% premium, run the numbers. For a S$1.2M unit, 2.5% = S$30,000. That is the cost of deferring the construction-phase payments. Compare it to the pre-TOP interest you would otherwise pay under PPS (approximately S$25,000–S$30,000 in Jing Wei's example). The premium often exceeds the interest saving, particularly for buyers who have CPF and income to service pre-TOP interest comfortably. DPS only outperforms for buyers who genuinely cannot fund the construction-phase drawdowns from existing cash and CPF.
Frequently Asked Questions
What happens if a construction milestone is delayed?
If the developer fails to obtain the architect's certification for a milestone within the contractual timeframe, they are in breach of the S&P Agreement and liable to pay you late completion interest at 10% per annum on the amounts you have paid, for each day of delay. This is an important buyer protection baked into the standard S&P Agreement. Track the contractual milestone deadlines — they are listed explicitly in the agreement — and engage your lawyer immediately if a deadline is missed. Delays of several months are not uncommon on large projects; significant delays of over a year can warrant considering an outright rescission of the agreement under specific clauses.
Can I pay more than the required amount at any milestone to reduce my loan?
Yes. You can make partial prepayments toward your loan at any time, subject to your bank's lock-in period terms. Some fixed-rate packages impose prepayment penalties (typically 1.5% of the prepaid amount) during the lock-in period, which is usually 2 to 3 years. For floating-rate packages, prepayment is generally penalty-free after the lock-in. However, because the bank only disburses funds to the developer according to the certified milestone schedule, "paying ahead" of a milestone is not possible with the developer — it simply means reducing your loan balance at a milestone payment date. Check with your banker before making any prepayment decision.
When does the full mortgage repayment schedule begin?
Full principal-and-interest repayment begins after TOP, when the largest tranche of the loan (25% at TOP) is drawn. Before TOP, you are paying interest-only on the progressively disbursed tranches — there is no principal reduction during the construction phase. Once TOP is issued and the 25% instalment is disbursed, your bank converts the loan to a full amortising repayment schedule. Monthly instalments thereafter cover both principal and interest over the remaining loan tenure. The 15% at CSC is a further drawdown that increases the outstanding loan balance and slightly adjusts the monthly instalment amount.
Is the 5% booking fee refundable if I change my mind?
If you exercise the Option to Purchase and then choose not to sign the S&P Agreement within the option period (typically 3 weeks), the developer is entitled to forfeit 25% of the booking fee — meaning you lose 1.25% of the purchase price. If you sign the S&P Agreement and subsequently default or rescind, the forfeiture provisions are more significant (typically 20% of the purchase price). The 5% booking fee is not freely refundable after OTP exercise; treat it as a committed deposit. Only the abortive legal costs scenario prior to OTP exercise gives you full protection — once you sign the OTP, you are financially committed.
How does BSD fit into the PPS schedule?
BSD is due within 14 days of signing the S&P Agreement — effectively at Stage 2 of the PPS. For a S$1.2M new launch, BSD is S$32,600. It is paid to IRAS (not the developer), and can be sourced from your CPF OA or cash. Most buyers co-ordinate BSD payment through their conveyancing lawyer at the same time as the Stage 2 downpayment. If you have the cash, paying BSD in cash rather than CPF keeps your OA balance higher for later milestones and reduces your total CPF accrued interest liability. For the full BSD calculation, use our Stamp Duty Calculator.
What is the difference between TOP and CSC, and why does it matter for payments?
The Temporary Occupation Permit (TOP) is issued by the Building and Construction Authority (BCA) once the building has been inspected and found structurally safe for occupation. TOP allows you to take possession of and move into your unit. The Certificate of Statutory Completion (CSC) follows later — typically 6 to 18 months after TOP — once all outstanding works, landscaping, amenities, and administrative requirements are finalised and inspected. Under PPS, 25% of the purchase price is due at TOP and 15% at CSC. This means even after you move in at TOP, you still owe 15% of the purchase price — an important cash-flow consideration. The CSC payment does not affect your right to occupy the unit, but it must be settled in full to complete the legal title transfer.
How Progressive Loan Disbursement Reduces Your Interest Bill
For a resale condo, your bank disburses the approved loan quantum in full on the day you complete the purchase. From that day you pay interest on the entire balance — typically S$700,000 to S$900,000 for a mid-range unit. Under PPS, the bank disburses only as each milestone is architect-certified. This means during the first 12 months of construction, your loan balance might be zero. After the foundation is certified, it rises to 10% of the loan. After the RC framework, 20%. The pattern produces a steeply rising but manageable interest curve rather than a cliff on day one.
To quantify the advantage: on a S$900,000 loan at 3.5% p.a., a resale buyer pays approximately S$2,625/month in interest from the first month. Under PPS, a buyer whose loan has been drawn to S$120,000 (after the foundation milestone at month 12) pays approximately S$350/month — a saving of S$2,275 per month. Across the 30 months before TOP in a typical project, the cumulative pre-TOP interest for a PPS buyer is roughly S$25,000–S$35,000, compared with over S$130,000 for a notional resale buyer on the same loan size. The cash flow freed up by this differential can be invested, kept as a buffer, or used to service the rental accommodation many PPS buyers occupy during construction.
The Monetary Authority of Singapore (MAS) TDSR framework applies to new launch mortgages in the same way as resale: your total monthly debt obligations (including the projected full mortgage instalment at TOP) cannot exceed 55% of gross monthly income. Banks stress-test your TDSR at the fully drawn loan quantum from day one — so even though your actual monthly outlay is low during construction, you must qualify based on what the instalment will be at TOP. Use our Under-Construction calculator to model both the pre-TOP interest curve and the post-TOP full instalment side by side.
Worked Cash-Flow Example: S$1.2M New Launch
Consider Hui Lin, a 33-year-old Singapore Citizen purchasing a new launch two-bedroom unit at S$1,200,000. She has S$190,000 in her CPF OA and S$85,000 in liquid savings. Monthly payroll contributes approximately S$1,702 to her OA (at the OW ceiling). The bank approves a 75% LTV loan of S$900,000. BSD on S$1.2M for a first-time SC buyer is S$32,600; no ABSD applies.
| Stage | Milestone (approx. month) | Amount Due | Source | Loan Drawn (Cumulative) |
|---|---|---|---|---|
| 1 | Booking fee (Month 0) | S$60,000 | Cash (mandatory) | — |
| 2 | S&P signing + BSD (Month 2) | S$180,000 + S$32,600 | CPF OA (S$180K) + cash (S$32,600 BSD) | — |
| 3 | Foundation complete (Month 12) | S$120,000 | Bank loan disbursement | S$120,000 |
| 4 | RC framework complete (Month 20) | S$120,000 | Bank loan disbursement | S$240,000 |
| 5 | Partition walls (Month 26) | S$60,000 | Bank loan disbursement | S$300,000 |
| 6 | Roofing / ceiling (Month 30) | S$60,000 | Bank loan disbursement | S$360,000 |
| 7 | Doors, windows, electrical (Month 34) | S$60,000 | Bank loan disbursement | S$420,000 |
| 8 | Car park, roads, drains (Month 38) | S$60,000 | Bank loan disbursement | S$480,000 |
| 9 | TOP (Month 42) | S$300,000 | Bank loan disbursement | S$780,000 |
| 10 | CSC (Month 54) | S$180,000 | S$120,000 loan + S$60,000 CPF OA (rebuilt) | S$900,000 |
Hui Lin's total cash out-of-pocket across 54 months is approximately S$92,600 (S$60,000 booking + S$32,600 BSD). Her CPF OA absorbed S$180,000 at S&P and a further S$60,000 at CSC from rebuilt contributions. The bank loan — progressively drawn to S$900,000 — covered the six construction milestones, the TOP tranche, and most of the CSC payment. Pre-TOP interest across the 42-month construction phase totals approximately S$28,000, payable monthly in cash. By contrast, if she had bought a resale unit on the same day with the same loan, she would have owed S$2,625/month in interest from month one — a cumulative S$110,000+ over the same 42-month period.
The CPF rebuild dynamic is critical: the S$1,702/month OA inflow from payroll means Hui Lin accumulates roughly S$91,900 in fresh OA contributions over 54 months. This provides the S$60,000 needed at CSC and restores her OA buffer for post-TOP mortgage servicing, without requiring any additional cash savings beyond what she held on booking day. The CPF Board's home-ownership page details which payments from CPF are eligible and the accrued interest rules that apply when CPF is used for property.
Step by step
- Calculate your 20% downpayment split before viewing showflats. The 5% booking fee is cash-only and non-negotiable. Confirm your liquid savings cover it plus S$5,000–S$10,000 for legal fees and incidentals before committing to an OTP. Use the Total Cost calculator to model the full upfront cash requirement including BSD.
- Get your loan In-Principle Approval (IPA) before booking. The bank stress-tests your TDSR at the fully drawn loan instalment — not the low pre-TOP interest amount. Secure written IPA from your preferred bank to confirm you qualify for the required loan quantum, and lock in your interest rate package before exercising the OTP.
- Check your CPF OA balance against Stage 2 (15% + BSD). At S&P signing you will draw your largest single CPF tranche. Confirm your OA balance is sufficient and that the property's purchase price does not exceed the CPF Withdrawal Limit (150% of the Valuation Limit for most residential properties). Paying BSD from cash rather than CPF at this stage preserves OA for later milestones.
- Budget for pre-TOP interest as a separate monthly cash expense. Once the bank disburses the first construction milestone (typically the foundation at month 12), monthly interest payments begin. Budget S$350–S$1,500/month depending on your loan size and the speed of construction milestones, and treat it as a fixed cash commitment alongside any rent you are paying during construction. Model this using our Under-Construction calculator.
- Track each architect's certificate and the 14-day payment window. Your conveyancing lawyer will receive each milestone certificate and must notify you promptly. Maintain a live spreadsheet with the contractual deadline for each milestone (listed in your S&P Agreement), the anticipated timeline, and the amount due. Build in a 30-day cash buffer before each expected milestone in case the certificate arrives early.
- Monitor your OA rebuild rate quarterly during construction. Your CPF OA is rebuilding through payroll contributions throughout the construction period. Log in to your CPF member portal quarterly to confirm inflows are as expected. If you change jobs, take extended leave, or become self-employed, contributions may drop — adjust your cash savings plan accordingly to cover the CSC payment gap.
- Plan your housing transition around the TOP window. Most projects communicate a TOP target date on a rolling 12-month basis. Once you are within 18 months of estimated TOP, synchronise your rental lease renewals with the anticipated move-in date. Aim for a 3-month buffer between TOP and lease expiry to allow for defect inspection, rectification, and renovation before moving in.
- Review your mortgage rate before TOP. If you locked in a fixed-rate package more than two years before TOP, reassess whether to refinance at or shortly after TOP when the loan is substantially drawn. Rates may have changed materially since booking. Use our Mortgage calculator to compare the post-TOP instalment under different rate scenarios and evaluate whether refinancing makes sense given any applicable lock-in periods.
Frequently asked questions
What happens if the developer misses a construction milestone deadline?
Under the standard S&P Agreement prescribed by the Controller of Housing, the developer must obtain the architect's certification for each milestone within the contractual timeframe. If a deadline is missed, the developer is liable to pay late completion interest at 10% per annum on the amounts you have already paid, calculated daily from the due date to the actual certification date. This is a statutory buyer protection baked into the Housing Developers Rules — it is not discretionary. Your conveyancing lawyer should flag any impending contractual deadline and initiate a demand for late interest if it passes. For delays exceeding a specified period (typically 12–18 months beyond the contractual TOP date), the S&P Agreement contains rescission provisions that allow the buyer to cancel and recover payments plus accrued interest — an important last resort that distinguishes Singapore's BUC market from many unregulated overseas markets.
Can I pay down my loan faster than the PPS schedule during construction?
You cannot pay the developer ahead of the milestone schedule — disbursements to the developer are strictly triggered by architect certificates. However, you can make partial capital repayments directly to the bank at any time, subject to your mortgage package's lock-in terms. Most fixed-rate packages impose a prepayment penalty (typically 1.5% of the amount prepaid) during the lock-in period, which is usually two to three years. Floating-rate packages generally allow penalty-free prepayment after the lock-in. If you have surplus CPF OA funds or cash during construction and want to reduce your eventual loan balance, speak to your banker before making any prepayment to confirm the applicable fee. Early repayments directly reduce the loan principal that accrues interest, and even small reductions during the construction phase compound favourably over the remaining loan tenure.
Is the TOP payment truly the largest single tranche, and when do full repayments begin?
Yes — the 25% due at TOP is the largest single instalment after the initial booking phase. For a S$1.2M unit, that is S$300,000 disbursed from your bank loan in one shot. Before TOP, your bank collects interest-only payments on the progressively drawn amounts — there is no principal reduction during the construction phase, which is why your loan balance does not decrease until full amortising repayments begin. Full principal-and-interest repayment starts after the TOP disbursement, converting the accumulated drawn balance into a standard amortising schedule over your remaining loan tenure. The subsequent 15% CSC payment (typically 6–18 months later) is an additional drawdown that slightly increases the outstanding balance and adjusts monthly instalments upward by a small amount. Plan your monthly budget to absorb the full post-TOP instalment from the month of TOP issuance — the instalment does not ramp up gradually; it rises sharply from the pre-TOP interest-only amount to the full amortised repayment in a single step.
How does Buyer's Stamp Duty (BSD) fit into the PPS payment schedule?
BSD is payable to IRAS within 14 days of signing the S&P Agreement — which aligns with Stage 2 of the PPS timeline. It is paid to IRAS (not the developer) and can be sourced from CPF OA or cash. For a S$1.2M new launch in 2026, BSD is S$32,600 (3% on the first S$1M, 4% on the next S$200,000). ABSD applies additionally if you are not a first-time Singapore Citizen. Most buyers coordinate BSD payment through their conveyancing lawyer at the same time as the Stage 2 15% downpayment. Paying BSD from cash rather than CPF at this point preserves your OA balance for later milestones and keeps your CPF accrued interest liability lower. If you are subject to ABSD (Singapore Citizens buying a second property pay 20%; PRs pay 5% on first property, 30% on second; foreigners pay 60%), the ABSD quantum should factor prominently in your cash reserve planning before booking. Use the Total Cost calculator to model the full stamp duty liability alongside each PPS milestone.
What is the project account and how does it protect buyers during construction?
The project account is a mandatory dedicated bank account that every licensed housing developer must maintain under the Housing Developers Rules. All buyer payments received at each PPS milestone are deposited into this account. The rules prescribe precisely what percentage of funds can be withdrawn from the project account at each construction stage — the developer cannot withdraw more than the certified milestone amount for that stage. This means if a developer encounters financial difficulty mid-construction, the remaining buyer funds in the project account are ring-fenced and available to continue the project or to be returned in an orderly manner. The URA's residential property buying guidance covers licensing requirements and the project account framework. This protection is one reason Singapore's new launch market is considered structurally safer for buyers than most comparable markets in the region, where unsecured off-plan purchases carry far greater completion risk.