HDB Loan Calculator Singapore 2026 | CPF OA, MSR & TDSR

The HDB concessionary loan rate is 2.6% per annum as of 2026, reviewed quarterly. It is pegged at 0.1% above the CPF Ordinary Account interest rate. Bank loans may offer lower promotional rates (from ~2.0% for fixed-rate packages) but require 25% minimum downpayment (5% in cash). HDB loans are cheaper overall for buyers with limited cash savings because of the lower 10% downpayment requirement.

With SGD 5,000 monthly income and no other debts, your maximum monthly housing instalment under MSR (30%) is SGD 1,500. Under TDSR (55%), your maximum total debt burden is SGD 2,750. With zero existing debt, the MSR limit binds first. At 2.6% over 25 years, you could borrow approximately SGD 325,000. With a 10% downpayment, you could afford a flat costing around SGD 361,000. Adding SGD 500/month in car loan payments reduces your maximum affordable flat price to approximately SGD 286,000.

For an HDB concessionary loan, the minimum downpayment is 10% of the purchase price. This can be paid entirely from your CPF Ordinary Account savings — no cash is required if your CPF OA balance is sufficient. Compare this to bank loans which require 25% minimum downpayment (at least 5% in cash, 20% from CPF/cash). For a SGD 500,000 flat, HDB loan requires SGD 50,000 downpayment (all via CPF OA if available) versus SGD 125,000 for a bank loan (SGD 25,000 minimum cash).

Three caps apply simultaneously and the strictest one wins: (1) HDB maximum tenure of 25 years. (2) Age cap — your age plus loan tenure cannot exceed 65. If you're 45, maximum tenure is 20 years. (3) Lease cap — remaining lease minus loan tenure must be at least 20 years. For a 99-year lease flat with 50 years remaining, maximum tenure is 30 years, but capped further to 25 years by HDB rules. If you're 50 and the flat has 40 years remaining: age cap = 15 years (65-50), lease cap = 20 years (40-20), HDB cap = 25 years. Result: 15-year maximum tenure.

MSR (Mortgage Servicing Ratio) caps your monthly HDB loan repayment at 30% of gross monthly income. TDSR (Total Debt Servicing Ratio) caps all your debt obligations (housing + car loans, personal loans, credit cards, study loans) at 55% of income. Both must be satisfied. Example: Income SGD 8,000, car loan SGD 500/month. MSR allows up to SGD 2,400 for housing. TDSR allows up to SGD 4,400 total debt (SGD 3,900 for housing after car loan). MSR binds at SGD 2,400. With 2.6% over 25 years, max loan = SGD 520,000. For a SGD 500,000 flat with 10% downpayment (loan SGD 450,000), monthly instalment would be SGD 2,040, well within the SGD 2,400 MSR limit.

Yes. Your monthly CPF OA contribution (23% of your salary, of which up to 23% goes to OA depending on age) can be used to pay your HDB instalments. Example: Earning SGD 5,000/month, your OA contribution is approximately SGD 1,150/month. If your HDB monthly instalment is SGD 1,200, CPF OA covers SGD 1,150, and you pay SGD 50 in cash. If the instalment is SGD 800, CPF OA covers it fully and the remaining SGD 350 stays in your OA earning 3.5% interest. Note that using CPF OA for housing reduces your retirement savings, so many financial advisors recommend limiting CPF housing usage.

HDB loans are generally better if: (1) You have limited cash savings (10% vs 25% downpayment), (2) You want flexibility (partial prepayment without penalty, can reduce tenure), (3) You're buying a BTO flat (CPF housing grants available). Bank loans are better if: (1) You can secure a significantly lower rate (e.g., 2.0% fixed vs 2.6% HDB), (2) You want a longer lock-in period certainty, (3) You have sufficient cash for the 25% downpayment. Rule of thumb: if you can't comfortably afford the 25% downpayment in cash+CPF, an HDB loan is the safer choice.

Several CPF housing grants are available for eligible buyers: Enhanced CPF Housing Grant (up to SGD 80,000 for families, SGD 40,000 for singles) based on income; Family Grant (up to SGD 50,000 for resale flats near parents); Proximity Housing Grant (up to SGD 30,000 for living near parents); Singles Grant (up to SGD 25,000 for eligible singles buying resale). These grants are credited to your CPF OA and can reduce your loan amount. Our calculator does not auto-apply these — use them to reduce the property price input.

Singles (aged 35+) can buy a 3-room or smaller BTO flat or any size resale flat with an HDB loan. The MSR/TDSR limits are the same. Singles receive lower CPF housing grants (about half of family grants). Permanent Residents (PRs) can buy resale HDB flats but not BTO. PRs must meet a 3-year residency requirement. The loan rules (MSR 30%, TDSR 55%, 2.6% rate) apply the same regardless of residency status, though PRs may face slightly stricter income assessment.

HDB requires that the remaining lease at the end of your loan tenure is at least 20 years. For a flat with 40 years remaining lease, and you're 35 years old, the maximum possible tenure is 20 years (40-20), not 25. This is often more restrictive than the age cap (65-35=30) or HDB's 25-year maximum. Resale flats with shorter leases are cheaper but harder to finance. For flats with fewer than 30 years remaining, HDB may not offer a loan at all. Always check the remaining lease before making an offer.