Singapore Mortgage Calculator
Calculate monthly instalments for HDB and private property loans in Singapore. Supports fixed and floating rate comparisons.
Loan Details
Results
Monthly Payment
S$3,794
Principal
S$800,000
Total Interest
S$338,107
Total Paid
S$1,138,107
Singapore home loan basics
Singapore has two distinct mortgage lanes: HDB Concessionary Loan (2.6% = CPF OA rate + 0.1%, fixed by policy, 25-year max, minimum 20% down via CPF) and bank mortgages (floating SORA-based or fixed-rate packages, typically 2.5%–4.0%, 30-year max, 25% down with at least 5% cash).
TDSR and MSR — the hard caps
Total Debt Servicing Ratio caps all your monthly debt payments at 55% of gross income. Mortgage Servicing Ratio (for HDB/EC only) caps the mortgage portion at 30%. Both are computed at a stress rate of ~4% for private, ~3% for HDB — much higher than the actual package rate. This is what forces most Singapore buyers to right-size.
Stamp duty on purchase
Buyer Stamp Duty (BSD): 1% up to S$180k, 2% up to S$360k, 3% up to S$1M, 4% up to S$1.5M, 5% up to S$3M, 6% above. Additional Buyer Stamp Duty (ABSD) on additional properties — Citizens 20% (2nd), 30% (3rd+); PRs 30% (2nd+); Foreigners 60% since 2023.
Fixed vs floating
Fixed packages (1–3 year lock): typically 0.2–0.5% higher than floating. SORA-pegged floating resets quarterly. Most locals take 2–3 year fixed then review. Watch for the 1.5% break cost during lock-in if you refinance early.
Frequently Asked Questions
Everything you need to know, in one place.
HDB loan vs bank loan — which is better?
HDB loan: 2.6% (CPF+0.1%), 25-year max, 20% down via CPF OA. Bank loan: 2.5%-4.0%, 30-year max, 25% down (min 5% cash). HDB wins on certainty; bank wins when rates fall below 2.5%.
What is TDSR and MSR?
Total Debt Servicing Ratio: all monthly debt payments cannot exceed 55% of gross income. Mortgage Servicing Ratio (HDB/EC only): mortgage cannot exceed 30%. Both capped by MAS; applies to every new property loan.
Fixed vs floating rate?
Fixed (1-3 year lock): certainty but 0.2-0.5% premium. Floating (SORA + spread): typically cheaper but resets quarterly. Most Singaporeans take 3-year fixed then review. Break costs of 1.5% apply on early refinance.
What is the stamp duty on property purchase?
Buyer Stamp Duty (BSD): 1%-6% tiered on purchase price. Additional Buyer Stamp Duty (ABSD) for second homes: 20% Citizens, 30% PRs, 60% foreigners (2023 update).
What is the Loan-to-Value (LTV) limit?
First private property: 75% LTV from bank loan (25% down, min 5% cash). Second property: 45% LTV. Third and subsequent: 35% LTV. HDB concessionary loan: 80% LTV (20% down can be fully from CPF). Shorter loan tenures may allow higher LTV. These limits are MAS-enforced cooling measures. Lowering LTV is often combined with higher ABSD during market overheats — always check the latest MAS and URA guidance before signing the Option to Purchase.
Can I refinance my Singapore home loan?
Yes — popular every 3 years when fixed-rate lock-in ends. Savings of 0.3%-0.5% justify refinancing if loan balance is above S$500k. Typical costs: legal fees S$2,500-S$3,500, valuation S$300-S$500, some banks offer subsidies of S$2,000 to offset. Watch for existing bank's clawback on cash rebates given at origination if you refinance within 3 years. Compare total cost including spread-over-SORA floating and fresh fixed packages before committing.
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