HDB resale · Singapore
HDB affordability calculator
Before you commit to an HDB resale flat, see the full picture: the largest loan you qualify for, your monthly repayment, how much CPF and cash you'll need up front, and a purchase-readiness score — all checked the way a bank actually assesses it.
What affordability really means for an HDB flat
Affordability isn't just the monthly repayment. With a bank loan you can borrow up to 75% of the lower of price or valuation, so you fund the other 25% yourself: at least 5% in cash, and up to 20% from CPF OA or cash.
On top of the downpayment you'll need Buyer's Stamp Duty, legal and valuation fees, the agent fee, and any cash-over-valuation (COV) — the amount the price exceeds the valuation, which must be paid in cash.
The eligibility checks: MSR and TDSR
MSR caps your monthly home-loan repayment at 30% of gross monthly income — this applies to HDB flats. TDSR caps all your monthly debts combined at 55% of income.
Both are stress-tested at a 4% interest-rate floor (not your package rate), and variable income is recognised at 70%. That's why the bank's figure is often lower than buyers expect.
PR buyers and ABSD
Permanent Residents can buy HDB resale (not BTO) and must use a bank loan. A PR's first residential property attracts 5% ABSD; Singapore Citizens pay 0% on their first home. The calculator includes ABSD so the cash figure is realistic.
Frequently asked
How much do I need to buy an HDB resale flat?
With a bank loan at 75% LTV you need a 25% downpayment (min 5% cash, up to 20% CPF/cash), plus Buyer's Stamp Duty, legal and valuation fees, the agent fee, and any cash-over-valuation. The calculator totals the cash and CPF for your price.
Can I use CPF for the HDB downpayment?
Yes — CPF Ordinary Account can cover up to 20% of the downpayment plus the stamp duty and legal fees. But at least 5% of the value must be paid in cash, and CPF can't cover the COV or agent fee.
Is the HDB concessionary (HDB) loan included?
This tool models a bank loan (75% LTV). The HDB concessionary loan has different terms (80% LTV, a fixed rate); it isn't modelled here, but the affordability checks (MSR/TDSR) are the same idea.
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Start your HDB assessment →Estimates only — not financial advice. Final figures depend on the bank’s assessment. Rules current as of 2026-06-10.