Assumes no outstanding housing loan and a 75% maximum LTV; at least 5% is cash.
This scope assumes the loan also ends by the borrower’s age 65.
Construction-stage months are estimates; the developer’s certified notices control.
The final 15% has conditional 2% / 8% / 5% legal, CSC and final-payment timing.
Use your letter of offer. Interest-only servicing is not universal and may need cash.
Initial Payment
$224,600
20% at signing + BSD planning amount
Loan Amount
$750,000
75% of property price
Interest Before Final Modelled Draw
$19,042
Based on the selected bank repayment scheme
Monthly Payment After Final Draw
$2,896
Principal + interest at the entered rate
Estimated Loan Repayment Timeline
The teal line is the estimated monthly loan payment after each draw; the orange line is cumulative loan servicing only. Purchase-price instalments, BSD and legal costs are excluded. Your bank’s disbursement dates, rate changes and letter of offer control.
Progressive Payment Schedule
Percentages follow the statutory private-housing schedule. Months are planning estimates because certified construction notices trigger payment. The final 15% is grouped because its 2% / 8% / 5% timing depends on legal completion, CSC and the final payment date.
Booking feeInitial
Upon purchase
Paid for the Option to Purchase; part of the 20% due at signing.
$50,000
5% of price
Loan Drawn
$0
Cash Required
$50,000
Cumulative Loan
$0
Monthly Payment
$0
Interest for Stage
$0
Principal Paid
$0
Sale & Purchase balanceInitial
Upon purchase
Balance of the 20% due when the Sale & Purchase Agreement is signed.
$150,000
15% of price
Loan Drawn
$0
CPF OA / Cash Required
$150,000
Cumulative Loan
$0
Monthly Payment
$0
Interest for Stage
$0
Principal Paid
$0
Buyer's Stamp DutyInitial
Due on the dutiable document; shown here as an initial planning cost
$24,600
Not financed by the housing loan
Loan Drawn
$0
Cumulative Loan
$0
Monthly Payment
$0
Interest for Stage
$0
Foundation
Illustrative month 6
Foundation work, including pile caps, completed.
$100,000
10% of price
Loan Drawn
$50,000
CPF OA / Cash Required
$50,000
Cumulative Loan
$50,000
Monthly Payment
$185
Interest for Stage
$497
Principal Paid
$611
Reinforced concrete framework
Illustrative month 12
Reinforced concrete framework completed.
$100,000
10% of price
Loan Drawn
$100,000
CPF OA / Cash Required
$0
Cumulative Loan
$150,000
Monthly Payment
$559
Interest for Stage
$1,486
Principal Paid
$2,479
Partition walls
Illustrative month 18
Partition walls completed.
$50,000
5% of price
Loan Drawn
$50,000
CPF OA / Cash Required
$0
Cumulative Loan
$200,000
Monthly Payment
$748
Interest for Stage
$986
Principal Paid
$3,739
Roofing / ceiling
Illustrative month 21
Roofing or ceiling, including false ceiling, completed.
$50,000
5% of price
Loan Drawn
$50,000
CPF OA / Cash Required
$0
Cumulative Loan
$250,000
Monthly Payment
$939
Interest for Stage
$1,229
Principal Paid
$5,328
Frames, wiring, plastering & plumbing
Illustrative month 24
Door and window frames are in position; wiring, internal plastering and plumbing are completed.
$50,000
5% of price
Loan Drawn
$50,000
CPF OA / Cash Required
$0
Cumulative Loan
$300,000
Monthly Payment
$1,131
Interest for Stage
$1,470
Principal Paid
$7,251
Car park, roads & drains
Illustrative month 27
Car park, roads and drains serving the project completed.
$50,000
5% of price
Loan Drawn
$50,000
CPF OA / Cash Required
$0
Cumulative Loan
$350,000
Monthly Payment
$1,324
Interest for Stage
$1,710
Principal Paid
$9,514
TOP / qualifying CSC milestoneMilestone
Illustrative month 30
TOP or qualifying CSC documents received and the statutory completion conditions are met.
$250,000
25% of price
Loan Drawn
$250,000
CPF OA / Cash Required
$0
Cumulative Loan
$600,000
Monthly Payment
$2,297
Interest for Stage
$11,665
Principal Paid
$25,408
Completion, CSC & final paymentMilestone
Illustrative month 42
Planning aggregate only: the statutory balance is normally split 2% / 8% / 5%, with timing determined by legal completion, CSC and the final payment date.
$150,000
15% of price
Loan Drawn
$150,000
CPF OA / Cash Required
$0
Cumulative Loan
$750,000
Monthly Payment(continues for 324 months)
$2,896
Interest for Stage
$0
Principal Paid
$25,408
Total Interest Summary
Interest Before Final Modelled Draw
$19,042
Interest After Final Modelled Draw
$213,752
Modelled Total Interest
$232,794
Initial Payment Breakdown
The 5% booking fee is cash in this model. CPF OA may be used for the remaining purchase contribution and BSD after legal documentation, subject to CPF limits and approval.
Scope, Assumptions & Sources
This calculator covers an uncompleted private residential property bought from a licensed Singapore developer using the statutory progressive-payment schedule and a bank loan. It does not model BTO flats, EC-specific rules, resale or completed properties.
- No outstanding housing loan; loan tenure is at most 30 years and does not extend beyond age 65.
- The selected LTV is a planning ceiling, not an approval. TDSR, income, credit assessment and bank policy may reduce the available loan.
- Purchase price equals bank valuation and market value. A lower valuation can increase the cash contribution; BSD uses the higher of price or market value.
- Buyer funds are used before bank drawdown. The first 5% is cash; later buyer funds are CPF OA and/or cash, subject to CPF approval and limits.
- The entered interest rate stays constant. Actual floating rates, fees, daily-interest conventions and disbursement dates will change the result.
- Interest-only servicing and progressive principal-and-interest are different bank schemes. The letter of offer controls; some interest-only payments cannot be made with CPF.
- The final statutory 15% is displayed as one planning stage, but is normally dealt with in 2%, 8% and 5% portions under conditional completion, CSC and final-payment rules.
- Only residential BSD is estimated. ABSD, SSD, legal fees, mortgage duty, valuation fees and other transaction costs are excluded.
Verified against official guidance on 12 July 2026:
Planning estimate, not financial or legal advice. Check the developer’s Sale & Purchase Agreement, certified notices, your bank’s letter of offer, CPF approval and conveyancing lawyer’s completion statement before relying on any amount.