Property Calculator Singapore

What Is a Property Calculator Singapore?

A Property Calculator Singapore estimates the possible housing loan, monthly instalment and part of the purchase price not financed by the loan.

Enter the property price, financing type, annual interest rate and loan tenure. The calculator uses the selected loan percentage and a monthly-rest repayment formula to produce the estimate.

The result is for early financial planning. It does not confirm loan eligibility, available CPF usage or the amount a bank or HDB will approve.

How to Use the Property Calculator

Enter the property purchase price in Singapore dollars.

Select the expected financing type:

• first bank housing loan;
• HDB housing loan; or
• custom loan percentage.

For the bank and HDB options, the calculator uses a planning LTV of up to 75%.

Choose the custom option if you want to test a different loan percentage. The Loan-to-Value Ratio Calculator Singapore can help you understand the relationship between property value and loan amount before entering a custom percentage.

Enter the annual interest rate and loan tenure, then select Calculate Property Costs.

Use Reset before testing another property or loan scenario.

What the Calculator Shows

The result includes:

• estimated monthly instalment;
• estimated housing-loan amount;
• purchase price not financed by the loan;
• loan percentage used;
• estimated total interest; and
• financing assumptions.

The purchase price not financed by the loan is not always the same as the minimum cash down payment.

Depending on the financing type, part of the amount may be payable using eligible CPF Ordinary Account savings. Cash-over-valuation and certain required payments may still need to be paid in cash.

Property Loan Formula

The estimated loan amount is calculated as:

Loan amount = Property price × Loan percentage

The part not financed by the loan is:

Non-financed amount = Property price − Loan amount

For the monthly instalment, the calculator uses a standard monthly-rest amortisation formula:

Monthly instalment = P × r(1 + r)ⁿ ÷ [(1 + r)ⁿ − 1]

Where:

• P is the estimated loan amount;
• r is the monthly interest rate; and
• n is the total number of monthly payments.

The Mortgage Calculator Singapore can be used separately when you want to focus more closely on mortgage repayment scenarios.

Property Calculation Example

Suppose a buyer enters:

• property purchase price: S$1,000,000;
• financing type: first bank housing loan;
• loan percentage: 75%;
• annual interest rate: 3%; and
• loan tenure: 25 years.

The estimated loan amount is:

S$1,000,000 × 75% = S$750,000

The purchase price not financed by the loan is:

S$1,000,000 − S$750,000 = S$250,000

Using the monthly-rest formula, the estimated monthly instalment is approximately:

S$3,556.58

The estimated total interest over 25 years is approximately:

S$316,974

This assumes that the interest rate remains at 3% for the complete tenure. A floating rate can change, which would affect future instalments and total interest.

Bank Housing Loan LTV

For an individual with no outstanding housing loan, the maximum bank-loan LTV can be up to 75%.

A lower limit may apply when:

• the borrower has an outstanding housing loan;
• the loan tenure exceeds the applicable limit;
• the loan extends beyond the specified borrower-age threshold;
• the property has a shorter remaining lease;
• the lender values the property below its purchase price; or
• the lender’s credit assessment supports a lower amount.

The lender is not required to approve the maximum permitted LTV.

HDB Housing Loan Limit

For eligible HDB flat buyers, the HDB housing-loan LTV limit is up to 75% of the lower of the purchase price or property value.

This limit has applied to relevant HDB applications since 20 August 2024.

Eligibility and the final loan amount can depend on:

• the buyer’s age;
• household income;
• financial position;
• remaining lease;
• credit assessment; and
• information shown in the HDB Flat Eligibility letter.

The calculator’s existing HDB button provides the page’s single external reference.

Understanding the Non-Financed Amount

A 75% loan on a S$1,000,000 property leaves S$250,000 outside the housing loan.

However, this figure should not automatically be described as the cash down payment.

The amount may involve an allowed combination of cash and CPF savings, depending on the financing arrangement and applicable rules.

For a first bank housing loan using 75% LTV, a minimum cash component may apply. Any amount paid above the property valuation may also require cash.

Confirm the payment breakdown before exercising an option to purchase.

Stamp Duty Is Not Included

The calculator does not add Buyer’s Stamp Duty or Additional Buyer’s Stamp Duty.

These charges depend on factors such as:

• purchase price or market value;
• buyer profile;
• citizenship or residency;
• number of residential properties owned; and
• applicable remission or exemption conditions.

Use the Stamp Duty Calculator Singapore separately before deciding how much cash you need at completion.

Legal fees, valuation charges and agent fees are also excluded.

TDSR and MSR Can Affect the Loan

The maximum LTV is not the only borrowing restriction.

The Total Debt Servicing Ratio considers monthly repayments for the housing loan and other debts. The general TDSR threshold is 55% of gross monthly income.

The Mortgage Servicing Ratio generally limits the monthly housing instalment to 30% of gross monthly income for applicable HDB flat and Executive Condominium purchases.

A buyer can therefore receive a smaller loan even when the property appears to qualify for 75% LTV.

The calculator does not ask for income or existing monthly debts, so it cannot perform a TDSR or MSR assessment.

Interest Rate and Loan Tenure

A longer loan tenure normally lowers the monthly instalment but increases total interest.

A shorter tenure normally increases the monthly instalment but reduces total interest, assuming the rate and loan amount remain unchanged.

HDB housing loans generally allow a tenure of up to 25 years. Bank-loan tenure can differ according to the property type and borrower circumstances.

Test more than one rate and tenure. This helps show whether the repayment remains manageable if interest rates increase.

Progressive Payments for New Properties

A property under construction may not require the full approved loan to be disbursed immediately.

Payments can be released in stages as construction milestones are completed. Interest may initially be charged only on the amount disbursed.

The Progressive Payment Calculator Singapore can help buyers examine a staged-payment scenario separately.

The standard property calculator assumes the full estimated loan when calculating the displayed monthly instalment.

Ongoing Property Costs

The purchase price and mortgage are not the complete cost of owning a property.

Owners may also need to budget for:

• property tax;
• home or fire insurance;
• mortgage insurance;
• maintenance or conservancy charges;
• repairs;
• utilities; and
• renovation.

The Property Tax Calculator Singapore can provide a separate estimate based on the relevant annual value and occupancy type.

Do not include recurring ownership expenses in the property purchase price field.

Buying a Property for Rental Income

An investment property should be assessed using more than its possible monthly loan repayment.

Consider rental income, vacancy periods, maintenance, agent fees, property tax, financing costs and changes in market value.

The Rental Yield Calculator Singapore can estimate gross or net rental yield using the relevant property and rental figures.

A higher estimated rental yield does not guarantee profit or future occupancy.

More Singapore property and finance tools are available through the Calculator Singapores homepage.

Common Property Calculation Mistakes

Avoid these common errors:

• treating the maximum LTV as guaranteed;
• using the purchase price when the lender uses a lower valuation;
• treating the full non-financed amount as cash-only;
• forgetting stamp duty and legal fees;
• ignoring TDSR or MSR;
• assuming an interest rate will never change;
• selecting an unsuitable loan tenure;
• excluding existing debt repayments; or
• treating the calculator result as loan approval.

Keep an emergency fund instead of using every available dollar for the property purchase.

Frequently Asked Questions

Q1: What does the Property Calculator Singapore calculate?

A: It estimates the housing-loan amount, monthly instalment, non-financed purchase-price portion and total interest from the entered figures.

Q2: Does the calculator include stamp duty?

A: No. Buyer’s Stamp Duty, Additional Buyer’s Stamp Duty and legal expenses must be calculated separately.

Q3: Is the non-financed amount the cash down payment?

A: Not necessarily. The permitted mix of cash and CPF depends on the financing type and applicable rules.

Q4: Can I automatically borrow 75% of the property price?

A: No. The approved amount depends on the lower applicable property value, LTV rules, debt limits, eligibility and lender or HDB assessment.

Q5: Does the calculator check TDSR and MSR?

A: No. It does not collect income or existing-debt information, so it cannot test these limits.

Q6: Can I use it for an HDB flat?

A: Yes. Select the HDB housing-loan option and enter a tenure of no more than 25 years. Final eligibility must still be confirmed by HDB.

Q7: Can I use a custom loan percentage?

A: Yes. Select the custom option and enter the percentage you want to test. This does not mean that percentage will be approved.

Q8: Is the estimated monthly instalment guaranteed?

A: No. The actual instalment depends on the approved loan, interest rate, tenure, disbursement and lender or HDB terms.