TDSR in Singapore: when it affects your personal loan application (2026)

TDSR is mainly a property-loan affordability rule — but it can still affect your options when you apply for a personal loan, because your existing debts (including credit card repayments) can change your overall debt profile.

This guide explains what TDSR is, what it applies to, how it’s calculated for a residential property loan, and the practical ways to keep your numbers healthy before you apply for new credit facilities.

What is TDSR (in plain English)?

TDSR is an affordability guardrail used in property-loan assessments. It looks at how much of your gross monthly income would go toward all your monthly debt repayments (including the new property loan you’re applying for). If the ratio is too high, the property loan amount you can get is reduced.

A simple way to think about it: > More monthly debt repayments = less room for a property loan instalment.

Who does TDSR apply to – and when does it matter most?

TDSR is most relevant when you’re applying for a property loan (especially a residential property purchase or refinance).

It is not applied to unsecured credit facilities such as personal loans and credit cards as a formal regulatory requirement – but these still matter because they form part of your overall monthly obligations.

Does TDSR affect personal loans?

Not directly in the “regulatory calculation” sense.

• If you’re applying for a personal loan, banks typically assess affordability using their internal credit checks and your overall obligations (income stability, existing debts, credit profile).

• But if you’re applying for a property loan, your personal-loan instalments and credit card repayments are included under the “monthly debt obligations” side of the TDSR equation.

Bottom line:

• Personal loan application: TDSR isn’t the formal gate.

• Property loan application: your personal loan repayments can shrink the amount you can borrow for the home.

How is TDSR calculated? (simple formula and example)

A simplified formula looks like this:

TDSR (%) = (total monthly debt obligations ÷ gross monthly income) × 100

What counts in “monthly debt obligations” can include:
- existing property loan repayments (and the new one you’re applying for)
- car loans
- student loans
- renovation loans
- credit card repayments
- other regular loan repayments

Quick example

If gross monthly income is $8,000 and total monthly debt repayments are $3,200: TDSR = 3,200 ÷ 8,000 = 40%.

What counts as income (and why “variable income” gets discounted)

Banks typically use gross monthly income (pre-tax), excluding employer CPF contributions.

Important nuance:

• Variable income is subject to a 30% haircut (at least). This includes commissions, bonuses, and allowances.

• Rental income is also typically haircut and must be supported by a tenancy agreement (common industry practice).

Why it matters:

If your pay varies month to month, your “usable income” for property-loan affordability is often lower than your best month.

Eligible financial assets (what they are and how they’re treated)

Some eligible financial assets (e.g. certain liquid assets) may be considered as an “income stream” for TDSR purposes, but:
- they are subject to haircuts, and
- they may be spread over a schedule (commonly referenced as 48 months) before inclusion.

Translation: assets can help, but they’re not a magic bypass.

Practical ways to improve your numbers (without guesswork)

If you’re concerned about affordability (especially before a property loan), the highest-leverage moves are:

1) Reduce existing debts
- Clear revolving balances first (credit card interest compounds fast).
- Pay down high-interest balances that drive monthly obligations.

2) Avoid stacking new credit facilities
- Multiple new obligations reduce your “headroom” for larger borrowing later.

3) Stabilise income documentation
- For variable income, keep records consistent (banks often look at averages and apply haircuts).

4) Adjust the repayment structure
- Longer tenures can lower monthly repayments (but may increase total interest). Use this strategically, not emotionally.

What to do next (choose your path)

If you want to understand personal loans end-to-end (eligibility, documents, repayment schedule): Personal loans in Singapore: eligibility & repayments

If you want to compare personalised offers efficiently (fees, tenure, total payable): Compare personal loans

If your next step is a property loan decision: Mortgage

Quick troubleshooting note

If an official resource page doesn’t load (it happens), try accessing the page using a different device or browser, or clearing cache – then retry.

(references used for the key takeaways at the start of this blog post: DBS explainer + MAS clarification summary.)