How to Learn Loan-to-Value Ratios Quickly and Correctly

The loan-to-value ratio, or LTV, tells you what share of a property’s relevant value is financed by a home loan. It is one of the simplest mortgage calculations, but it is often misunderstood because a maximum LTV percentage is not a promise that a lender will grant a particular amount. In Singapore, the applicable limit can depend on the number of outstanding housing loans, the property, its valuation, the loan tenure and the borrowers’ circumstances. This eduKateSG Quick Notes lesson teaches the formula with clear examples, then shows why a lower valuation or tighter LTV category can change the cash required.

Learn the equation: LTV = loan amount ÷ the applicable property value × 100%.
Know the standard illustration: a S$600,000 mortgage over S$800,000 equals 75% LTV.
Check the lower value: lenders often work from the lower of purchase price and valuation.
Check the category: existing housing loans, age and tenure can reduce regulatory borrowing limits.
Separate other tests: LTV does not replace TDSR, MSR or the lender’s affordability assessment.
Plan the cash: every amount not covered by the loan must have an eligible funding source.

Teaching paragraph 1 — get the formula right. Suppose you borrow S$600,000 against a property with an applicable value of S$800,000. Divide 600,000 by 800,000 to get 0.75, then multiply by 100 to obtain 75% LTV. The amount not financed is S$200,000, or 25% of that value, before other property costs. LTV tells you the financing proportion. It does not tell you your mortgage interest rate, your monthly instalment, your household savings or whether a lender will approve the borrowing. Keep the numerator and denominator clearly labelled.

Teaching paragraph 2 — learn why valuation can matter more than the agreed price. Imagine a resale flat purchased for S$850,000, while the bank or relevant authority uses S$800,000 as its value. A fictional 75% maximum is applied to the lower figure: 0.75 × S$800,000 = S$600,000. The buyer still owes the seller S$850,000, leaving S$250,000 beyond the loan. Within that S$250,000, S$50,000 is the difference between price and valuation—cash over valuation, generally funded with cash rather than CPF or mortgage financing. That is why the agreed price and the lending valuation must both appear in your budget.

Teaching paragraph 3 — learn that the cap is not the approved loan. An individual with no outstanding housing loan may qualify for a bank mortgage at an LTV limit as high as 75% under the ordinary qualifying conditions, but longer tenures or borrowing beyond age-related thresholds can reduce the applicable limit to 55%. Having other outstanding housing loans can reduce it further. A lender may also approve less than the regulatory ceiling because the borrower cannot afford the instalments, the property’s lease is short, or another underwriting concern arises. Learn the order: determine the regulatory ceiling → test affordability → obtain the actual approved amount.

Read the LTV Formula in One Line

LTV = loan amount ÷ applicable property value × 100%. The loan amount goes on top. The relevant property value goes underneath. If you borrow S$420,000 against a relevant value of S$700,000, LTV is 60%. If you borrow S$350,000 against the same value, LTV is 50%. A smaller ratio means a larger share of that value is financed without the loan.

Use this formula only after confirming which value the lender uses. For a flat’s purchase loan, HDB and banks may refer to the lower of price and valuation under their rules. The ratio does not turn a higher offer into a higher valuation.

Bank LTV Categories for Individual Residential Buyers in Singapore

These are the individual purchase-loan regulatory categories summarised by MoneySense. They are not a universal table for corporate borrowers, refinancing, every special scheme or any lender’s actual approval. Borrower groups and refinancing cases can have additional rules. Confirm the applicable category with the lender rather than deciding it from a blog headline.

For example, a person buying a second property while an earlier housing loan remains outstanding is not necessarily eligible for the same 75% maximum as an individual with no outstanding housing loan. It is the number of outstanding housing loans and the applicable conditions—not simply the number of properties that someone has ever owned—that determine the categories in this simplified table.

No outstanding housing loan: ordinarily up to 75% LTV, or 55% when relevant long-tenure or age conditions apply.
One outstanding housing loan: ordinarily up to 45%, or 25% when the lower-limit conditions apply.
Two or more outstanding housing loans: ordinarily up to 35%, or 15% when the lower-limit conditions apply.
Long-tenure or age condition: use the lower LTV category for loans exceeding 30 years (25 years for HDB flats), or when the loan period extends beyond the borrower’s age 65, under the relevant rules.

Worked Example: Why a 55% Limit Changes the Downpayment

Assume an illustrative property value and purchase price of S$800,000. At 75% LTV, the upper loan amount is S$600,000, leaving a price gap of S$200,000. At a 55% LTV, the upper loan amount is only S$440,000, leaving a price gap of S$360,000. That is S$160,000 more of purchase price the buyer must fund without this mortgage.

The minimum mandatory cash portion can also be different. MoneySense’s table identifies a 5% cash minimum where a qualifying 75% bank LTV applies and a 10% minimum where the relevant 55% LTV category applies. If the property value is S$800,000, 5% is S$40,000 and 10% is S$80,000. Cash-over-valuation and other transaction charges may add further cash needs.

This example does not mean choosing a 55% loan automatically makes you financially worse off. Borrowing less reduces loan debt, but it requires greater upfront funding. The right decision must consider household liquidity and the actual loan offer.

HDB Loan LTV: What Is the Difference?

Eligible HDB flat purchasers can apply for an HDB housing loan, with a general LTV of up to 75% under rules introduced in August 2024. The HDB housing-loan guidance explains that for a resale flat the relevant amount is the lower of purchase price and value, and that the allowed loan can be reduced if the remaining lease cannot cover the youngest applicant up to age 95.

An HDB Flat Eligibility letter and HDB credit assessment are important because a permitted LTV ratio is not a guaranteed borrowing quantum. HDB also considers income, existing debt, age, household status and loan tenure. A buyer might have an LTV ceiling of 75% but qualify for a smaller loan. The missing funding must then be covered through eligible CPF OA and/or cash.

Note that a bank loan used to purchase an HDB flat is still a bank loan with the relevant financial-institution LTV, cash payment and loan-tenure rules. Do not assume all loans on an HDB flat have identical terms merely because the property is public housing.

Loan-to-Value and Cash-Over-Valuation Are Not the Same

Loan-to-value expresses a ratio of debt to accepted value. Cash-over-valuation is an amount by which the agreed price exceeds the relevant valuation. An S$850,000 property bought at a value of S$800,000 has S$50,000 COV whether the buyer’s eventual mortgage is S$600,000 or S$450,000. The mortgage amount changes the total downpayment, but it does not change that S$50,000 price-versus-value difference.

Singapore’s CPF Board explains that the part of the price above valuation must be funded with cash, while CPF OA use is subject to separate limits. This is why buyers should calculate COV and LTV in two independent rows before adding up their cash needs.

Loan-to-Value Is Not TDSR or MSR

A household can be below a 75% LTV and still fail an affordability test if its monthly income cannot support the repayment. Another household may pass debt-service tests but lack the necessary upfront cash or CPF funding. All relevant constraints can matter at once. The smallest permissible loan amount across the applicable tests, not the most generous headline, determines the feasible financing.

LTV: How much of the property value is financed by debt?
TDSR: What proportion of the borrower’s assessed monthly income is committed to all counted monthly debt payments?
MSR: What proportion of gross monthly income is committed to the mortgage on specified HDB and EC purchases?
Lender credit assessment: Is this particular household and property acceptable under the bank’s policies?

How Existing Debt and Loan Tenure Change the Decision

A longer mortgage tenure can lower modelled monthly instalments but increase the total interest over the full repayment period. Singapore’s loan-to-value framework also imposes tighter limits when certain tenure or borrower-age thresholds are exceeded. Borrowers sometimes focus on the lower instalment and forget that a longer loan could demand more upfront funding because the LTV falls.

Existing housing loans can likewise tighten LTV. Personal loans, vehicle repayments and credit-card debt may also affect a lender’s affordability assessment, even though their presence does not automatically count as an outstanding housing loan for the LTV table. Keep both concepts separate.

For authoritative rules and exceptions, see MAS Macroprudential Policies and MoneySense’s LTV examples.

Ten-Minute Loan-to-Value Lesson

Minutes 1–2: learn the LTV equation and label numerator and denominator.
Minutes 3–4: calculate S$600,000 ÷ S$800,000.
Minutes 5–6: calculate a 55% loan limit on S$800,000.
Minutes 7–8: compare the S$850,000 sale price with S$800,000 valuation.
Minute 9: name two reasons the actual approved loan could be below the nominal ceiling.
Minute 10: explain why LTV, TDSR and MSR ask different questions.

Check Your Understanding

Question 1: A S$450,000 loan over a relevant S$600,000 value gives what LTV? Answer: 75%.

Question 2: What is 55% of S$800,000? Answer: S$440,000.

Question 3: A resale flat costs S$850,000 and is valued at S$800,000. What is COV? Answer: S$50,000.

Question 4: Does a bank’s 75% regulatory maximum guarantee it will approve that full amount? Answer: No.

Question 5: Is a personal car loan automatically an additional housing loan for the LTV table? Answer: No, although it can affect TDSR.

Common Mistakes to Fix

Dividing property value by loan amount instead of loan amount by value.
Using the purchase price even when the relevant valuation is lower.
Confusing a regulatory ceiling with a bank’s confirmed loan offer.
Ignoring tighter LTV rules for additional housing loans or longer tenures.
Assuming a lower interest-rate offer eliminates cash-downpayment requirements.
Counting COV as if CPF can automatically pay it.
Thinking LTV alone decides mortgage affordability.

Primary Sources and Final Rule

Official references: MoneySense: Buying a Property—How Much Can You Afford?, MAS Macroprudential Policies in Singapore, HDB: Housing Loan from HDB and CPF Board: Downpayment with CPF OA. Figures here are fictional teaching examples; use the lender’s current decision and loan documents for real transactions. Final rule: calculate against the correct property value, check the right LTV category, then ask what the lender will actually approve.