How is the monthly repayment calculated?

The calculator uses the standard amortizing loan formula. The annual interest rate is converted to a monthly rate, and the loan amount is divided into equal monthly repayments over the loan tenure so the balance reaches zero at the end of the term.

Does this apply to both HDB loans and bank loans?

Yes, the underlying repayment math is the same for an HDB concessionary loan and a private bank loan. The interest rate structure differs (HDB uses a rate pegged to the CPF Ordinary Account rate, banks use fixed, SORA-pegged, or board rates), so enter the rate that applies to your specific loan package.

What loan-to-value (LTV) limit should I use?

This tool does not enforce an LTV limit for you. Singapore LTV limits depend on factors set by MAS and HDB such as loan tenure, borrower age, and the number of outstanding home loans, and can range roughly from 55% to 75% for bank loans or up to 80% for an HDB loan. Enter your property price to see the resulting LTV ratio as a reference figure, then confirm the applicable limit with your bank or HDB.

Does Singapore have mortgage interest tax relief like the US?

No. Singapore does not offer a mortgage interest deduction (MID) for owner-occupied residential property, unlike the US. This calculator estimates loan repayments only and does not model any tax effect.

Does this include stamp duty, valuation fees, or legal fees?

No. This calculator covers principal and interest repayments only. It does not include Buyer's Stamp Duty, Additional Buyer's Stamp Duty, valuation fees, legal fees, or fire insurance, all of which add to the upfront or ongoing cost of a property purchase.

What loan tenure should I use?

HDB loans typically cap at 25 years, and bank loans typically cap at 30 years for HDB flats or 35 years for private property, subject to the borrower's age at loan maturity. Enter the tenure offered in your loan package or the remaining tenure for an existing loan.

Singapore Mortgage Calculator

Name: Singapore Mortgage Calculator
Availability: InStock
Author: Nham Vu

Enter your loan amount, interest rate, and loan tenure to get your Singapore mortgage repayment, principal and interest split, and a year-by-year amortization summary.

Loan Details

Loan Amount (SGD)

Interest Rate (% per year)

Loan Tenure (years)

Property Price (SGD) (optional, for LTV)

Enter your loan details to see the repayment breakdown.

Monthly Repayment

S$0.00

Total Interest

S$0.00

Total Repaid

S$0.00

Loan Amount	—
Interest Rate	—
Loan Tenure	—
Year 1 Principal / Interest Split	—

Amortization Summary by Year

Year	Principal Paid	Interest Paid	Ending Balance

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Summary

Enter your loan amount, interest rate, and loan tenure to get your Singapore mortgage repayment, principal and interest split, and a year-by-year amortization summary.

How it works

Enter the loan amount in Singapore dollars.
Enter the annual interest rate as a percentage.
Enter the loan tenure in years.
Optionally enter the property price to see the loan-to-value ratio.
Read the monthly repayment, total interest, and total repaid in the results panel.
Expand the amortization table to see the principal and interest split for each year of the loan.

Use cases

Estimating monthly repayments before applying for an HDB or bank home loan.
Comparing repayments across different interest rates before locking in a package.
Checking the loan-to-value ratio against a property price before submitting an offer.
Seeing how much of each payment goes to interest versus principal in the early years.
Working out total interest paid over a 25-year versus a 30-year tenure.
Reviewing a year-by-year amortization schedule for financial planning.

Frequently Asked Questions

Last updated: 2026-07-24 · Reviewed by Nham Vu