If you live in the home you are refinancing, the TDSR threshold does not apply to your refinancing. Investors can refinance above the threshold only by committing to a debt-reduction plan and passing the lender’s own credit assessment. Either way, the exemption is not an approval: banks still run independent checks and ask for documents before they lend.
TL;DR:
- Owner occupiers must prove they live in the property with an OTP, matching NRIC address, myTax property summary, written declaration, and credit report.
- Investors refinancing above TDSR must commit to repaying at least 3% of the outstanding balance within three years, but lenders retain independent credit approval.
- Exclusions can apply to bridging loans, mortgage equity withdrawal at an aggregated LTV of 50% or less, and sale undertakings supported by paperwork.
- After gathering documents, request in principle approval from one or two lenders, then submit the application and arrange valuation; processing timelines vary.
Table of Contents
- What does MAS say about owner-occupier refinancing?
- How does the debt-reduction plan work for investment properties?
- Which other loans are excluded from the TDSR calculation?
- How do banks calculate TDSR at refinancing?
- What is a realistic checklist and timeline for refinancing?
- What exactly is the TDSR in Singapore?
- Why do borrowers benefit from professional help with refinancing?
- How can we help you prepare to refinance?
- FAQ
- Sources
What does MAS say about owner-occupier refinancing?
MAS fine-tuned its refinancing rules in 2016 so owner-occupiers could refinance without being subject to the TDSR threshold, provided they remain in the property. The logic is simple: you should not be penalized for chasing a lower interest rate on a home you already live in and already service.
To verify that you really are an owner-occupier, lenders follow MAS guidance on documentary evidence. Expect requests for:
- A copy of your Option to Purchase (OTP) for the property
- A written declaration on property ownership and occupation
- A myTax Account summary listing the properties you own
- A copy of your NRIC showing an address that matches the property
- A credit bureau report showing your outstanding loans
The exemption removes the TDSR test, not the bank’s judgment. You still have to satisfy the financial institution’s (FI) own credit assessment, which looks at your income, existing commitments and repayment record.
How does the debt-reduction plan work for investment properties?
Investment properties follow a different rule. MAS guidance allows refinancing above the TDSR threshold if you commit to a debt-reduction plan and meet the FI’s credit assessment. The plan has two parts:
- Repay at least 3% of the outstanding loan balance
- Complete that repayment over a period of not more than 3 years
MAS says the requirement exists to make borrowers actively reduce leverage when they refinance above the threshold. Confirm the plan’s terms with your lender before submitting your application.
The plan does not replace the bank’s checks. A borrower with a strong plan but a weak credit profile can still be declined.
Pro Tip: Ask the bank to confirm in writing how it will track your repayments against the plan, so you and the lender share the same expectations from day one.
Which other loans are excluded from the TDSR calculation?
Some repayments can be left out of the TDSR computation altogether, depending on the circumstances and the evidence you provide. In practice, three situations come up most often:
- Bridging loans: Ask your lender whether repayments can be excluded in your circumstances and what evidence is required.
- Mortgage equity withdrawal: an exclusion can apply when your aggregated loan-to-value (LTV) ratio does not exceed 50% under MAS rules. Our guide to loan LTV in Singapore explains how LTV is measured.
- Sale undertakings for HDB or EC purchases: repayments on your existing loan can be excluded when you hold a signed Sale and Purchase agreement plus IRAS stamp-duty proof. MAS lists this and the discharged loan situation among its permitted exclusions.
Each exclusion rests on paperwork. Without the proof, the bank has to count the repayment.
How do banks calculate TDSR at refinancing?
TDSR is the share of your gross monthly income that goes to monthly debt obligations, including the loan you are applying for. MAS requires that ratio to be 55% or less. The technical formula sits in MAS Notice 645. A typical assessment runs like this:
- The bank totals your gross monthly income from verified sources.
- It adds up monthly debt obligations: the proposed mortgage, other property loans, car loans, personal loans and credit card commitments.
- It removes any repayments that qualify for an exclusion, such as those described above.
- It divides total obligations by gross income and compares the result with the 55% limit.
- It checks your account statements, myTax property list, credit bureau report and NRIC address proof against what you declared.
For refinancing cases where the exemption applies, the bank skips the TDSR test but still performs steps 1, 2 and 5 as part of its credit review.
What is a realistic checklist and timeline for refinancing?
Work through these steps in order:
- Gather your OTP or Sale and Purchase agreement, NRIC and latest bank statements.
- Print your myTax property summary.
- Pull your credit bureau report and check for errors.
- If you own an investment property, outline a debt-reduction plan: 3% or more of the balance, within 3 years at most.
- Request in-principle approval from one or two lenders.
- Submit the application and arrange the valuation.
The time needed for document collation, application, valuation and approval through drawdown varies. Ask your lender for an estimate. Our mortgage eligibility rules guide covers what banks weigh during credit assessment.
Pro Tip: Discuss the debt-reduction plan with the bank before you sign anything, so the repayment schedule it expects matches the one you can actually sustain.
What exactly is the TDSR in Singapore?
The Total Debt Servicing Ratio is MAS’s cap on how much of your income can go toward debt. It measures the portion of your gross monthly income used to repay all monthly debt obligations, including the property loan you are applying for. When you apply, your TDSR must be at or below 55%.
Any individual applying for a loan to purchase a property, or for a loan secured by a property, falls under the rules. Owner-occupier refinancing is exempted, and investors can refinance above the limit when they meet the debt-reduction plan conditions. Banks apply the rules under MAS Notices, with consolidated guidelines explaining what an FI must compute and the refinancing cases where it need not.
The rule can affect how much buyers can borrow and, in turn, how much they can bid. For a wider explanation, see our buyer’s guide to what TDSR means, and for the difference between the two caps, read TDSR vs MSR.
Why do borrowers benefit from professional help with refinancing?
Most refinancing delays I see come from paperwork, not policy. As part of my work, I help prepare the evidence a bank asks for and coordinate valuations, so nothing arrives late or mismatched. For investors, I help lay out a clear debt-reduction plan before it reaches the lender, which cuts the back-and-forth. The rules are public, but applying them to your own numbers is where a second pair of eyes pays off. Browse our resources, or set up a conversation if you want to talk it through.
— Aman
How can we help you prepare to refinance?
Refinancing goes more smoothly when the groundwork is done first. At Aesthetic Havens, we offer property valuation, so you know where your home stands before the bank’s valuer visits. Our real estate consultancy covers refinancing advisory and document preparation support, helping you assemble the OTP, myTax summary and supporting records lenders expect. We also brief you on what to raise with lenders, including how a debt-reduction plan should be framed for an investment property.
Our pages on why a property consultant helps and what property valuation involves are good places to start. When you are ready, contact us for a consultation or valuation and we will walk through your refinancing plan with you.
This article is general information, not a substitute for advice from a qualified financial advisor. Consult a qualified financial professional about your own circumstances before acting on anything here.
FAQ
What is the maximum loan tenure for mortgages in Singapore?
Tenure limits depend on the type of loan and the lender, and they are set under MAS rules for banks and the policies of the FI you choose. Check the current limit with your bank or on the MAS housing loan explainers, since it can change with policy.
What is the current TDSR?
MAS requires your TDSR to be 55% or less of your gross monthly income when you apply for a property loan. Owner-occupier refinancing is exempt from this threshold.
Does an exemption guarantee my refinancing is approved?
No. Even where TDSR does not apply, the lender still performs its own credit assessment and asks for documentary evidence. A strong income and clean repayment record help more than the exemption itself.
What is the age limit for a home loan?
MAS sets no single age cutoff in the sources we reviewed. Lenders typically weigh your age against the loan tenure and your income, so confirm with your bank before applying.
