If you’re a Singaporean and thinking of buying a property, the amount you can borrow isn’t based on your salary alone. Banks also look at how much of your income goes toward loan repayments, using two rules known as the Mortgage Servicing Ratio (MSR) and Total Debt Servicing Ratio (TDSR).
Both can affect your buying power, particularly if you have existing debts or plan to buy another property. Here’s how each rule works, what banks consider, and where the limits differ.
What Is the Mortgage Servicing Ratio (MSR)?
The Mortgage Servicing Ratio (MSR) caps monthly housing loan repayments at 30% of your gross monthly income. It applies to HDB flats and Executive Condominiums (ECs) that are still within their minimum occupation period (MOP).
Say you and your spouse earn a combined S$8,000 a month before CPF deductions. Under MSR, your monthly housing loan instalment cannot exceed S$2,400.
| Gross monthly household income | Maximum monthly instalment |
|---|---|
| S$5,000 | S$1,500 |
| S$8,000 | S$2,400 |
| S$10,000 | S$3,000 |
However, qualifying under MSR doesn’t guarantee that a bank will lend you the full amount. Your loan tenure, existing debts and the interest rate used in the bank’s assessment can reduce how much you qualify for.
If the instalment exceeds your MSR limit, you may need to increase your downpayment or consider a lower-priced property.
Does MSR Apply to HDB Concessionary Loans?
Yes. HDB concessionary loans are subject to the 30% MSR limit. However, unlike bank loans, they are not subject to TDSR.
What Is the Total Debt Servicing Ratio (TDSR)?
The Total Debt Servicing Ratio (TDSR) caps your combined monthly debt repayments at 55% of your gross monthly income.
Unlike MSR, which focuses on a specific housing loan, TDSR considers your wider financial commitments. These include existing mortgages, car loans, personal loans and credit card obligations.
Consider someone earning S$10,000 a month with an existing S$1,000 monthly car loan instalment.
Example of a TDSR Calculation
| Item | Monthly amount |
|---|---|
| Gross monthly income | S$10,000 |
| Maximum debt repayments at 55% TDSR | S$5,500 |
| Existing car loan instalment | −S$1,000 |
| Remaining capacity for property loan and other counted debts | S$4,500 |
The S$4,500 is the remaining monthly repayment capacity under TDSR, provided there are no other counted debts. It isn’t the loan amount the bank will necessarily approve.
TDSR also covers more than residential purchases. Individuals financing commercial or industrial properties are generally subject to the same 55% threshold, although certain business borrowers and exempted loan arrangements are treated differently.
MSR vs TDSR: Key Differences at a Glance
| Feature | MSR | TDSR |
|---|---|---|
| Maximum limit | 30% | 55% |
| Property coverage | HDB flats and ECs within their MOP | Residential, commercial and industrial property loans |
| Debts considered | Housing loan instalment for the qualifying property | All counted monthly debt obligations |
| Applies to HDB concessionary loans? | Yes | No |
| Applies to bank loans for HDB flats? | Yes | Yes |
| Applies to private condominium purchases? | No | Yes |
Can MSR and TDSR Apply to the Same Property Purchase?
Yes. A buyer taking a bank loan for an HDB flat must satisfy both limits.
For example, someone may qualify under MSR but fail TDSR because of outstanding car or personal loans. The bank will assess both before deciding how much to lend.
A private condominium buyer, on the other hand, won’t face the 30% MSR cap. Their loan will still be assessed under TDSR, alongside the bank’s other lending requirements.
How Banks Assess Your Income and Interest Rates
Banks use prescribed assessment rates and income rules when calculating how much you can borrow. Your monthly repayment may look affordable at today’s interest rate, but the bank also tests whether you can manage a higher rate.
Why Do Banks Use a 4% Interest Rate?
For residential property loans subject to the relevant MAS rules, banks use an assessment interest rate of 4% per year, even when the offered mortgage rate is lower. This stress test gives borrowers a buffer against higher interest costs.
For example, a loan that appears affordable at a promotional rate may qualify for a smaller loan amount when the bank calculates repayments at 4%. The assessment rate affects your borrowing limit; it doesn’t mean your bank will charge you 4% on the loan.
How Do Banks Treat Bonuses, Freelance Pay and Rental Income?
Banks may not count every dollar of income at face value. Under the TDSR framework, financial institutions apply a haircut to certain variable income and rental income to account for changes or gaps in earnings.
A commonly applied haircut is 30%, although the bank will assess the income type and supporting documents under the applicable rules.
If a self-employed buyer earns S$8,000 a month in income that is subject to a 30% haircut, the bank may count only S$5,600 for the relevant assessment. That lower assessed income reduces the amount available for monthly debt repayments.
Rental income may also be considered, but the lender will need evidence that the income is genuine and sufficiently supported. The documents required and the way income is assessed can vary by lender, so check with the bank before relying on expected rent to qualify for a loan.
Why MSR and TDSR Can Limit Property Portfolio Growth
MSR and TDSR can make it harder to buy another property because each new loan must fit within the relevant borrowing limits. Even if your first property has risen in value, that doesn’t automatically increase the monthly income banks use to assess your next loan.
Consider an HDB owner who earns S$8,000 a month and already has a housing loan. If the existing instalment uses most of the household’s available borrowing capacity, the owner may struggle to qualify for another residential loan. A car loan, personal loan or income that the bank discounts can narrow that capacity further.
The challenge is that property equity and borrowing capacity are two different things. Equity is the value of your property after deducting the outstanding loan. MSR and TDSR, by contrast, assess income and debt repayments. Having substantial equity doesn’t guarantee approval for another loan.
This is where property planning needs to go beyond asking how much a bank will lend. Before committing to a second purchase, buyers should work out the expected monthly repayments, the cash needed upfront, and how much room remains if rental income falls or expenses rise.
Proptiply™’s Residential Acceleration Program (RAP) focuses on residential property investment strategies and helps participants assess how to progress their portfolios safely. Through board game simulations built into the bootcamp, you’ll work through different investment scenarios, make decisions and see how different choices play out in a safe learning environment before applying what you’ve learned.
Buyers considering another property should still check their individual borrowing capacity with a lender before making a purchase decision.
Expand Your Portfolio: How Commercial and Industrial Property Fit Into an Investment Plan
If you’re looking to expand your portfolio, commercial and industrial properties can give you another option when residential borrowing limits restrict their plans.
However, buying a commercial or industrial property does not automatically exempt an individual from TDSR.
MAS applies TDSR to individuals taking loans to buy or borrow against both residential and non-residential properties. Companies are assessed under a different framework, although individuals who set up a company solely to buy property remain subject to TDSR rules.
The main difference is that MSR does not apply to commercial and industrial properties, which removes the additional 30% housing-loan cap that applies to qualifying HDB and EC purchases. But, the buyer must still meet the lender’s financing requirements and, where applicable, TDSR.
There may also be differences in the taxes payable. Singapore’s Additional Buyer’s Stamp Duty (ABSD) applies to residential property purchases, while commercial and industrial property purchases generally do not attract ABSD. Buyers still pay Buyer’s Stamp Duty, and other costs and restrictions may apply depending on the property.
The Commercial & Industrial Program (CAIP) by Proptiply™ teaches beginner and seasoned investors about commercial and industrial property investment, including opportunities such as B1 industrial spaces.
Can Co-Living Rental Income Help With Your Debt Ratios?
Co-living is one way property owners earn rental income by renting out individual rooms. This model can produce more gross rental income in some properties, compared to conventional rental.
Rental income can support a property loan application, but banks may not count the full amount when assessing your borrowing capacity. They apply the relevant income assessment rules and may require tenancy agreements or other documents to verify the rent. The exact treatment depends on the lender and the loan application.
Proptiply™’s Coliving Bootcamp teaches participants how to set up and run a co-living business, including rent-to-rent and master lease strategies.
Frequently Asked Questions
Can I use rental income to help pass my TDSR?
Yes. Banks may include eligible rental income when assessing your borrowing capacity, but they may apply a haircut to account for rental income uncertainty. MoneySense’s guide to property affordability explains how lenders assess income and existing debt commitments. Check with your bank about the documents required and how much rental income it will recognise.
Do high credit card limits hurt my home loan chances even if I pay my bills in full?
They can affect your borrowing capacity, depending on how the lender assesses your credit facilities and monthly debt obligations. MoneySense notes that lenders consider existing loans and credit facilities when assessing housing loan eligibility. Ask your bank how it calculates your credit card commitments before applying.
Does MSR apply when buying a resale private condo?
No. MSR does not apply to private condominium purchases. However, TDSR still applies to an individual’s property loan, subject to the relevant rules and exemptions. According to MoneySense’s property affordability guide, TDSR limits total monthly debt commitments to 55% of gross monthly income.
How Much Can a Car Loan Reduce My Home Loan Limit?
A car loan reduces the monthly repayment capacity available under TDSR. MAS’s TDSR calculation rules require banks to count existing debt obligations, including car loans, when assessing a property loan. A S$1,000 monthly car repayment leaves S$1,000 less per month for other counted debts, although the reduction in your approved property loan depends on the loan tenure and assessment rate.
Can Freelancers and Self-Employed Buyers Qualify for a Home Loan?
Yes. Freelancers and self-employed buyers can qualify, but lenders need to assess how stable and consistent their income is. Under MAS’s TDSR income assessment rules, banks must apply at least a 30% haircut to variable income, such as commissions and bonuses, and use the average variable income earned over the preceding 12 months. Ask your bank which income records it requires before setting your property budget.
