Nexus Mortgage SG  ·  May 2026  ·  7-minute read  ·  Self-Employed

Self-Employed TDSR Singapore: How the 30% Haircut Really Works in 2026

By Dan Ler, Mortgage Advisor

Self-employed and applying for a Singapore home loan? MAS forces banks to chop 30% off every dollar of your declared income before TDSR is applied. Here is exactly how the haircut math works, what your IRAS NOA actually has to show, and the two ways (pledge funds and show funds) you can legally bring back the borrowing power you lost.

The Rule in One Sentence

Under the MAS Total Debt Servicing Ratio framework, banks must apply a minimum 30% haircut to any income that is not fixed monthly salary. That covers self-employed trade income, commission, bonus, director's fee, allowance and rental. Only 70% of those streams count toward the 55% TDSR ceiling.

If you are 100% self-employed, every dollar takes the cut. A freelancer declaring S$10,000 a month on her IRAS Notice of Assessment is assessed by the bank on S$7,000. The 55% cap then applies to that smaller number, not the gross.

How Banks Actually Compute Your Income

For a salaried applicant, the bank uses the latest payslip and CPF contribution history. For a self-employed applicant, it goes straight to your IRAS Notice of Assessment (NOA) filings.

The standard formula:

So a freelance designer with S$120,000 trade income on each of her last two NOAs is assessed as: (S$120,000 + S$120,000) / 2 / 12 × 70% = S$7,000/month recognised. The 55% TDSR cap then gives her S$3,850/month of total debt servicing room. That has to cover any new mortgage, car loan, credit-card factor and existing instalments.

The 30% haircut is not negotiable. It is written into MAS Notices 645, 1115, 831 and 128 as a minimum, so banks can apply more but never less. Variable income is treated the same way whether it shows up as commission, bonus, rental or self-employed trade.

The Documentation Banks Actually Want

Self-employed underwriting lives or dies on a paper trail that reconciles. What you declare to IRAS has to match what flows through your business bank account, what you put into Medisave, and what your accounting records say. When those numbers do not line up, that is the most common reason a borderline file gets rejected.

• Your latest 2 NOAs from IRAS, downloaded via myTax Portal
• Medisave contribution history from CPF Board, which shows the declared income is real
• Platform earnings summaries (Grab, Upwork, Lazada, Shopee) if you are a gig worker
• Your latest 2 years of tax computations if the income mix is complicated, for example multiple revenue streams or partnership shares

If you only have one year of NOA, most lenders will not assess trade income at all. The usual workaround is to apply while still salaried, if the transition is recent, or wait until the second NOA is issued.

Worked Example: Freelancer vs Salaried Equivalent

Take two applicants, both reporting S$120,000 a year. One is a salaried marketing manager on an employment letter. The other is an independent consultant filing trade income via NOA. Neither has existing debts, both are Singapore Citizens, and both are applying for a private condo:

Same headline income, S$345,000 less qualifying loan. That is what MAS charges you for variable income. And it gets worse if the two NOAs diverge sharply, because most banks then take the lower of the two rather than the average.

Pledge Funds and Show Funds: How to Recover the Lost Capacity

MAS guidelines let you use Eligible Financial Assets to top up your income for TDSR. There are two ways to do it, and they are not the same:

Pledge funds (locked, four-year minimum) recognise the full pledged amount divided by 48 months as monthly income. Show funds (unencumbered) recognise roughly 30% of value, also divided by 48 months. Both rules sit inside MAS TDSR guidelines and apply across all banks.

Pledge Fund Route: 100% Recognition

Cash placed on fixed deposit and pledged to the lending bank for at least 4 years (48 months) counts as income at the full pledged amount divided by 48. Pledge S$240,000 and the bank adds S$5,000/month to your recognised income for the whole assessment. The funds stay yours and earn FD interest. You just cannot touch them during the lock-up.

Show Fund Route: ~30% Recognition

If you would rather not lock up cash, you can show liquid assets the bank verifies but does not encumber. That covers fixed deposits, unit trusts, listed equities and structured deposits. Recognition is roughly 30% of asset value, divided by 48 months. Show S$240,000 and you add about S$1,500/month to recognised income. Less recognition, but the funds stay liquid.

For most self-employed applicants the pledge route wins on the math. Locking up S$120,000 for four years recovers S$2,500/month of recognised income, which is enough to add roughly S$525,000 of qualifying loan at the 4% stress rate. The one thing worth working out before you sign is what that locked cash could have earned elsewhere.

The Stress Test Still Applies

Even after the haircut, the qualifying instalment is sized at the MAS 4.00% p.a. medium-term floor, not your actual loan rate. With private home loan rates in Singapore at 1.40–1.85% in 2026, that gap is real money. The full mechanics are in our companion piece on the MAS 4% stress test; for current package rates see our live Singapore home loan rates page.

The stress test stacks on top of the haircut. It does not replace it. A self-employed applicant ends up assessed on (NOA average / 12 × 70%) × 55% × tenure factor at 4%. That is three layers of caution piled into one calculation.

If that timeline sounds like you, our Singapore Mortgage Free Report lays out the full pre-purchase roadmap in one place: NOA optimisation, a pledge-fund sizing worksheet and a step-by-step self-employed checklist, free to download. Buying premises for the business instead of a home? Our commercial property loan guide covers the different rules there (no CPF, no ABSD, and up to 90% LTV).

What To Do 12–24 Months Before You Apply

• Declare your income cleanly. Under-declaring trade income to save on tax also cuts your borrowing capacity by 1.43× (the inverse of the haircut). The tax you save is rarely worth the qualifying loan you give up.
• Keep the year-on-year line steady. Banks often take the lower of the two NOAs if they diverge by more than 20–30%, so a consistent two-year line is worth more than a bigger but volatile pair.
• Pay down credit-card balances before you apply. MAS counts 3% of the statement balance as monthly debt, even on cards you clear in full. A S$30,000 balance eats S$900 of TDSR room before the new mortgage is even added.
• Line up the pledge cash early. Having it ready 30 days before the IPA application saves you a last-minute liquidity scramble.
• Consider a co-borrower. Adding a salaried co-borrower can shift the income mix away from the haircut, though you do need to watch the Income-Weighted Average Age tenure rule, which can knock 5 percentage points off LTV.
• Talk to a broker rather than a single bank. Every MAS-regulated lender applies the same haircut, but documentation flexibility, how they treat director's fees versus trade income, and whether they accept overseas income all vary from bank to bank.

HDB vs Private: Same Haircut, Different Cap

The 30% haircut is the same for HDB and private property applicants. What changes is the second ratio. HDB flats and Executive Condominiums add a 30% Mortgage Servicing Ratio (MSR) on top of the 55% TDSR cap. For almost every self-employed HDB buyer that MSR is the binding limit, because 30% is smaller than 55% even before the haircut bites. For private condos, only TDSR applies. See our deep-dive on TDSR for private property and on HDB loan vs bank loan for the side-by-side.

Further Reading

• Singapore Mortgage Free Report: Dan's full borrowing-capacity workbook, with a per-purchaser income matrix (the 30% self-employed haircut already applied), TDSR/MSR at the MAS 4% stress floor, the optimisation levers including pledge-fund and show-fund top-ups, and a 16-bank rate comparison in one downloadable PDF
• MAS 4% stress test: how the floor rate stacks on top of the haircut
• TDSR for private property: the 55% cap and credit-card factor in full
• using CPF OA for property: OA withdrawal, BRS and accrued interest
• when to refinance: TDSR is reassessed at every refinance
• fixed vs SORA comparison: package selection at 2026 spreads
• MAS: TDSR for Property Loans: the official rules and worked examples
• MAS Notices 645, 1115, 831, 128: haircut and Eligible Financial Asset rules in primary text
• IRAS: Notice of Assessment: how to retrieve the document banks need
• CPF: Medisave for the self-employed: mandatory contributions that cross-check NOA

Frequently Asked Questions

Under MAS TDSR rules, banks must apply a minimum 30% haircut to variable income — including self-employed trade income, commission, bonus, allowance and rental. Only 70% of declared income counts toward the 55% TDSR ceiling. A self-employed borrower declaring S$10,000 a month is assessed on S$7,000.

Banks typically require the latest two IRAS Notice of Assessment (NOA) filings. The two-year average trade income is divided by 12 to derive a monthly figure, and the 30% haircut is then applied. Borrowers in their first year of self-employment generally cannot be assessed on trade income at all.

Yes. Cash pledged to the lending bank for at least 4 years is recognised at 100% as monthly income (pledged amount divided by 48 months). Liquid assets shown but not pledged — Eligible Financial Assets — are recognised at roughly 30% of value over 48 months. Both routes are explicitly permitted under MAS guidelines.

Yes. Variable income components — commission, bonus, director's fee, allowance — take the 30% haircut even for salaried applicants. A S$5,000 fixed salary plus S$5,000 commission is assessed as S$5,000 + (70% × S$5,000) = S$8,500.

All MAS-regulated lenders apply the same 30% haircut and 55% TDSR cap — the rules do not vary by bank. Where lenders differ is in documentation flexibility, treatment of fluctuating year-on-year income, and willingness to accept pledged-fund and show-fund collateral. A broker comparison across 16+ lenders typically surfaces the strongest fit.

About the author — Dan Ler has advised on Singapore home loans since 2017 at Nexus Mortgage SG, an independent brokerage comparing 16+ MAS-regulated lenders. Nexus is paid by the bank on disbursement, so there is no cost to the borrower.

Nexus Mortgage SG is an independent Singapore mortgage brokerage. This article is general information, not financial advice. Figures reflect May 2026 market conditions and MAS rules in force at the time of writing; both are subject to change. Verify current rules at MAS: TDSR for Property Loans and IRAS before transacting.