HDB Affordability Calculator (MSR · TDSR · LTV)

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About this tool

Max loan and price ceiling under Singapore's servicing and LTV rules

How much HDB can you afford? Max loan under MSR 30% / TDSR 55% at the 4% floor, LTV limits (HDB 75%) and your price ceiling. Free, in-browser.

RT-FIN-267 · Finance & Money · Reviewed Jun 2026

How much home can you afford in Singapore? Compute your maximum loan under MSR 30% / TDSR 55% at the regulatory floor rates, the LTV-capped price ceiling, and the downpayment needed — for HDB or bank loans. Everything runs in your browser.

Fixed monthly income (household)

Variable income / month

Existing monthly debt payments

Downpayment funds (cash + CPF)

Loan type

Tenure (years)

Property

Existing home loans (bank)

📅 Research current as of 11 Jun 2026 · Sources: MAS MSR 30% / TDSR 55% at the 4% floor (3% HDB-loan eligible amount); LTV 75% HDB (Aug 2024) / 75-45-35 bank; variable income ×0.7. 6-month review + cooling-measure watch.

Rates, regulations, and lender practices change frequently — verify current figures with your provider or licensed advisor before acting.

Max property price

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Max loan

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Monthly instalment budget (—)

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Downpayment needed

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LTV limit

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Assessment rate

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⚠ Estimates only — not financial advice. Rules as at 2026-06-11 (MSR 30% / TDSR 55% / LTV 75%); cooling measures change them by surprise. HDB's HFE letter and your bank's IPA prevail.

How HDB affordability rules work

Enter household income and debts

Fixed monthly income counts in full; variable income (bonus, commission) counts at 70%. Existing loan instalments (car, study) eat into your debt-servicing limit.

Pick the loan type and tenure

An HDB loan runs at most 25 years and is assessed at the 3% floor; bank loans are assessed at the 4% medium-term floor. Your actual rate differs — the floor is only for eligibility sizing.

Add your downpayment funds

Cash plus available CPF Ordinary Account savings. An HDB-loan downpayment can be fully paid with CPF.

Read your affordability ceiling

Results show the maximum loan under the servicing ratios (the tighter of MSR 30% and TDSR 55%), the maximum price under the loan-to-value (LTV) limit, and the downpayment needed.

How HDB affordability rules work

Singapore sizes home loans with two servicing ratios. The Mortgage Servicing Ratio (MSR) caps the home-loan instalment at 30% of gross monthly income and applies to HDB flats and ECs bought from developers. The Total Debt Servicing Ratio (TDSR) caps all debt servicing at 55% and applies to every FI property loan. The tighter of the two wins.

Crucially, eligibility is not sized at your actual interest rate: financial institutions must assess at a 4% medium-term floor for residential loans, and the HDB-loan eligible amount is assessed at the higher of 3% and CPF OA + 0.1%. That is why this calculator's loan figure is lower than a naive computation at today's rates.

The loan-to-value (LTV) limit then caps the price: 75% for HDB loans (since August 2024) and 75/45/35% for bank loans by the number of outstanding home loans. Your maximum price is the lower of the LTV-implied ceiling and loan-plus-downpayment-funds.

Variable income — bonuses, commissions, rental — counts at only 70%. Existing instalments (car, education, personal loans) come straight off the TDSR budget.

Eligibility to buy at all is separate: HDB income ceilings ($14,000 BTO family, $7,000 single, $16,000 EC) and grants (up to $120,000 EHG; income-tiered) are noted here but not computed — HDB's HFE letter is the formal answer.

10 Facts About HDB Affordability

The Mortgage Servicing Ratio (MSR) caps home-loan instalments at 30% of gross monthly income — for HDB flats and ECs bought from developers.

The Total Debt Servicing Ratio (TDSR) caps ALL debt instalments at 55% of income — for every property loan from a financial institution.

Banks size loans at a 4% medium-term floor rate even when actual rates are lower — this shrinks the eligible amount.

The HDB-loan eligible amount is assessed at the higher of 3% and the CPF OA rate + 0.1%; the rate actually charged is 2.6%.

The HDB-loan LTV limit has been 75% since 20 August 2024 (previously 80%).

Bank-loan LTV: 75% (first), 45% (second), 35% (third+) — lower for long tenures or loans past age 65.

Variable income (bonus, commission, rental) takes a 30% haircut — only 70% counts in the assessment.

HDB income ceilings: $14,000 for BTO families, $21,000 extended families, $7,000 singles (2-room Flexi), $16,000 for ECs.

First-timers can stack grants up to $120,000 (Enhanced CPF Housing Grant, families) — and up to about $230,000 on resale flats, income-tiered.

This calculator estimates from income and ratios; HDB's actual approval comes via the HDB Flat Eligibility (HFE) letter.

Frequently Asked Questions

MSR counts only home-loan instalments (capped at 30% of income) and applies to HDB flats and developer ECs; TDSR counts ALL debt instalments (capped at 55%) on every FI property loan. When both apply, the tighter one governs — this calculator handles that automatically.
That is MAS's medium-term floor: whatever the bank quotes, eligibility is sized at 4% (residential) so you can still afford the loan if rates rise. The HDB-loan eligible amount is assessed at the 3% floor.
HDB loan: 75% LTV, 2.6% rate, max 25 years, downpayment fully payable with CPF, penalty-free early repayment. Bank loan: possibly lower but floating rates, 75% LTV on a first loan, longer tenures. This calculator estimates both.
At 70%. Example: $5,000 fixed salary plus $1,000 average monthly commission gives an assessed income of $5,700.
Yes. Every debt instalment counts toward the 55% TDSR cap: a $1,000 car instalment removes $1,000 from your home-loan servicing budget.
Buying an HDB flat is subject to household income ceilings: $14,000 (BTO families), $21,000 (extended families), $7,000 (singles), $16,000 (ECs). Above them, your options are resale flats (no grants) or private property.
Not computed automatically — grants are income-tiered (family EHG up to $120,000). Add the grants you qualify for to the downpayment-funds field, and confirm on HDB's site.
Banks also weigh age-weighted tenure, credit records and other commitments. This calculator estimates by the standard rules; the formal answer is a bank IPA or HDB's HFE letter.
Yes — cooling measures arrive by surprise: August 2024 cut the HDB-loan LTV from 80% to 75%. Watch the rules-as-at date on this page.
No. All calculations run in your browser — your income figures are never transmitted or stored.

Important — please read.

Estimates only — not financial, credit, or legal advice, and not a substitute for HDB's Flat Eligibility (HFE) letter or a bank's in-principle approval. Age-weighted tenure limits, credit assessment, grants, and income-ceiling eligibility are not computed.

No affiliation. RECATOOLS is not affiliated with, endorsed by, or representing HDB, MAS, CPF Board, or any government agency.

Rules as at 2026-06-11. MSR/TDSR/LTV and floor rates change by cooling measure — the HDB LTV moved to 75% overnight in August 2024. Verify at hdb.gov.sg and mas.gov.sg before acting.

Assessment vs reality: the 4%/3% floors are sizing rates, not what you pay; actual instalments at market rates will differ from the budget shown.

No warranty; limitation of liability. Provided "as is" without warranty of any kind. To the maximum extent permitted by law, RECATOOLS accepts no liability for any loss arising from use of this calculator.

Privacy. All calculations run locally in your browser; no income or personal data is transmitted or stored.

HDB Affordability Calculator (MSR · TDSR · LTV)