Finding your maximum affordable property price means working backwards from your income through Singapore's TDSR (55%) and MSR (30%) rules, sizing your loan under a stressed interest rate, then adding the downpayment. This guide walks through every step with a worked example so you can verify your number before speaking to a bank — then directs you to the Affordability Calculator to run your own figures.
The moment you find a flat or condominium you love, one question eclipses every other: can I actually afford this? The asking price on the listing is only the starting point. What determines whether a purchase is sustainable is the interplay between your gross income, your existing debts, the regulatory lending limits set by the Monetary Authority of Singapore, and the cash you can marshal at completion. Singapore's framework is deliberately conservative — stress-tested interest rates, a binding Total Debt Servicing Ratio ceiling, and a separate stricter cap for HDB buyers — because regulators have observed what happens when households over-leverage into property. Working through this calculation yourself, before you approach a bank or engage an agent, puts you in a negotiating position and prevents the disappointment of making an offer on a home that a bank will not finance. The arithmetic is not difficult, but the sequence matters: miss one layer and you will either overestimate what you can borrow or underestimate what the downpayment will cost.
Why the calculation is more than just "what can I borrow"
Singapore's property lending framework (as of 2026-06) wraps the purchase in three distinct constraints that must all be satisfied simultaneously. First, the Total Debt Servicing Ratio (TDSR) — introduced by the Monetary Authority of Singapore — limits the total of all monthly debt obligations to 55% of gross monthly income. This covers your new mortgage plus all other outstanding credit: car loans, personal loans, student loans, credit card minimum payments. Second, for HDB flats and Executive Condominiums (during the MOP period) bought with an HDB concessionary loan, the Mortgage Servicing Ratio (MSR) adds a tighter sub-ceiling: the housing loan alone may not exceed 30% of gross monthly income (as of 2026-06), per HDB's loan guidance. Third, the Loan-to-Value (LTV) ratio — also set by MAS — caps how much the bank will lend against the property's valuation or purchase price, whichever is lower. For a first residential property loan from a financial institution (as of 2026-06), the LTV ceiling is 75%, meaning the buyer must fund at least 25% as a downpayment, with a minimum 5% in cash and the remaining 20% payable from cash or CPF.
What you need before you start
Gather these inputs: (a) your gross monthly income from employment — including fixed allowances but excluding discretionary bonuses; (b) your current monthly debt obligations (car loan instalments, personal loan instalments, credit card minimum-payment amounts, any outstanding student loans); (c) your estimated CPF Ordinary Account balance available for housing; (d) your accessible cash savings; (e) whether you are buying an HDB flat/EC (MSR applies) or private property (TDSR only); (f) the loan tenure you intend to use (maximum 30 years for HDB, 35 years for private, further capped so the loan does not extend beyond age 65 for most borrowers); and (g) whether you will incur ABSD — Singapore Permanent Residents and foreigners, and citizens buying a second or subsequent property, pay Additional Buyer's Stamp Duty rates that range from 5% to 60% (as of 2026-06) and directly reduce your available purchase budget. Use the Affordability Calculator to plug these numbers in once you have them ready.
You earn $12,000/month and have $200K in cash and $150K in CPF. What is the most expensive property you can buy? The answer is not simply "income × some multiple" — it depends on five different constraints: TDSR, MSR, LTV, cash reserves, and CPF balance. The binding constraint (the one that limits you most) is often not the one you expect.
The Unified Affordability Calculator combines all five constraints into a single maximum price, and tells you exactly which limit is holding you back — so you know where to focus.
What This Calculator Does
Discover the maximum property you can afford by combining all Singapore financing constraints in one calculation — TDSR, MSR, LTV, CPF balance, and cash reserves. Identifies which constraint is your binding limit so you know exactly where to focus.
You can find this calculator in the Calculators tab on ShiokNest. It updates results instantly as you adjust inputs — no waiting, no page reloads.
Why This Matters
Most buyers only check one affordability constraint — typically income — but the real limit is often cash on hand, CPF balance, or existing debts. This calculator matters because:
- It checks all constraints simultaneously: TDSR, MSR, LTV, cash, and CPF
- It identifies which constraint is your binding limit so you know where to focus
- Knowing your true maximum prevents wasted time on properties you cannot finance
What You Will Discover
After running this calculator with your personal numbers, you will know:
- Your maximum affordable property price based on all Singapore financing constraints
- Maximum loan amount under TDSR and MSR limits
- The binding constraint — whether it is income (TDSR/MSR), cash, CPF, or LTV
- A constraint breakdown chart showing how much each factor limits your budget
- Monthly mortgage payment at the maximum affordable price
Key Inputs Explained
Here are the inputs you will configure, along with their default values. Each default is calibrated to a realistic Singapore condo scenario so you can explore results immediately.
| Field | Description | Default Value |
|---|---|---|
| Gross Monthly Income | Your total monthly income before tax. | $12,000 |
| Existing Obligations | Current monthly debt repayments. | $0 |
| Property Type | Private property, HDB, or Executive Condo. | Private |
| Buyer Profile | Your residency status (SC/PR/Foreigner). | SC 1st |
| Loan Tenure (Years) | Duration of the mortgage loan. | 25 years |
| Interest Rate (%) | Annual loan interest rate. | 3.5% |
Step-by-Step Guide
- 🏠 Navigate to Calculators — Click the "Calculators" tab in the ShiokNest navigation bar. All 26 calculators are grouped by purpose for easy access.
- 🔍 Select the calculator — Choose "How to Find Your Maximum Affordable Property Price" from the calculator list. You will see default values already loaded so you can explore immediately.
- ✏️ Enter your values — Replace the defaults with your own numbers. The key fields are:
- Gross Monthly Income — Your total monthly income before tax.
- Existing Obligations — Current monthly debt repayments.
- Property Type — Private property, HDB, or Executive Condo.
- Buyer Profile — Your residency status (SC/PR/Foreigner).
- Loan Tenure (Years) — Duration of the mortgage loan.
- Plus 1 more fields for fine-tuning your scenario.
- 📊 Review the results — The calculator updates instantly as you change any input. Maximum affordable price, max loan, monthly payment, binding constraint, and a constraint breakdown chart.
- 🔄 Run what-if scenarios — This is where the real power lies. Change one variable at a time to see its impact. For example, try increasing the interest rate by 1% or extending your holding period by 5 years. Note how the results shift.
- 💾 Compare and decide — Run 2-3 different scenarios and note the results. This gives you a range of outcomes to base your decision on, rather than relying on a single projection.
Worked Example
Meet Rachel, earning $12,000/month gross with a $500/month car loan. She wants to know the maximum property she can afford and which constraint binds first.
The binding constraint: Rachel's TDSR allows $6,100/month toward mortgage, but her MSR (for HDB/EC) would cap her at $3,100/month. For a private property, TDSR is the binding constraint, giving her a maximum price of approximately $1,541,000.
The car loan effect: Without the $500/month car loan, Rachel could afford roughly $750 more in property. The calculator shows exactly how each debt reduces your buying power.
Real-World Scenarios to Try
Here are some realistic scenarios you can plug into the calculator right now. Each one reflects a common situation Singapore property buyers face.
| Scenario | Settings to Try | What You Will Learn |
|---|---|---|
| First-timer SC | $10K income, $0 obligations, SC1, private | Your maximum affordable price and which constraint (TDSR, cash, or CPF) is binding |
| HDB upgrader | $12K income, $500 obligations, SC2, private | How existing obligations and IRAS ABSD ratesABSD affect your upgrade budget |
| Dual-income household | $18K combined, $1,000 obligations, SC1, private | The power of combined income on maximum affordable price |
Expert Tips and Common Pitfalls
💡 Pro Tips
- Use realistic assumptions — Singapore condo appreciation has historically averaged 2-4% per year. Avoid overly optimistic projections. When in doubt, use 3% as a baseline.
- Stress-test at higher rates — Banks use 4% (or higher) for TDSR stress tests. Run the calculator at 4.5% to see your true worst-case affordability.
- Account for lifestyle expenses — The calculator shows the maximum you can borrow, not what you should borrow. Leave room for travel, dining, and savings.
- Keep a cash buffer — Do not drain your savings for the down payment. Keep at least 6 months of expenses as an emergency fund after the purchase.
⚠️ Common Pitfalls
- Confusing maximum with comfortable — The calculator shows the ceiling, not the sweet spot. Borrowing the maximum leaves zero buffer for rate increases or income changes.
- Forgetting non-mortgage costs — Property tax, condo fees, and renovation are not included in loan affordability but still come out of your pocket every month.
🤔 What-If Scenarios to Explore
Get the most value from this calculator by testing these scenarios:
- What if you have $500/month in car loan obligations? How much does it reduce your budget?
- Compare buying private vs EC — how does the MSR limit change your maximum?
- What if you only have $100K cash but $300K CPF? Which constraint is binding?
- Run at least 3 scenarios — best case, base case, and worst case — to understand the full range of outcomes.
Related Calculators
Your property journey involves many interconnected decisions. These calculators work hand-in-hand with this one:
- How to Check TDSR and MSR Affordability
- How to Use the mortgage calculator
- How to Calculate total acquisition cost
- How to Calculate Decoupling Savings
Ready to Crunch Your Numbers?
Enter your income, existing debts, and savings to discover the maximum property you can afford. The calculator checks all constraints and tells you which one binds first.
Try the Find Your Maximum Affordable Property Price Calculator Now →
Official Sources
This how-to guide is auto-generated using ShiokNest's calculator defaults. All worked examples use default values — adjust inputs to match your personal scenario for accurate results.
The stressed interest rate: why banks do not use the promo rate
Banks and HDB do not size your loan on the current promotional mortgage rate. MAS guidelines require lenders to apply a medium-term interest rate floor when computing the monthly repayment for TDSR purposes. As of 2026-06 the prevailing convention used by most banks for private property loans is a stress rate of 4.0% per annum (check your bank's current floor as it can move with market rates). HDB uses a stress rate of 3.5% per annum for concession loan TDSR calculations. The practical effect: your serviceable monthly repayment — and therefore your maximum loan — is calculated at this higher rate, not at a 1.x% floating rate or a 2.x% fixed rate you see advertised. This is the single biggest reason buyers are surprised when the bank's offer is lower than their back-of-envelope estimate.
Converting a monthly repayment ceiling to a maximum loan
Once you know your maximum allowable monthly repayment, the loan size is derived from a standard annuity formula. You do not need to compute this by hand — the Mortgage Calculator accepts a target repayment and tenure and back-solves for the principal. The key relationship: at 4.0% stress rate over 30 years, each S$1,000 of monthly repayment capacity supports approximately S$209,000 of loan principal. At 25 years the factor is roughly S$190,000 per S$1,000 per month. These multipliers decrease as tenure shortens or rate rises — use the calculator for precision. CPF Board's guidance on using CPF savings for housing explains which CPF accounts can service the loan (Ordinary Account primarily) and the Valuation Limit and Withdrawal Limit rules that cap total CPF usage over the loan's life.
From max loan to max purchase price — and the stamp duty bite
Once you have the maximum loan principal (from TDSR/MSR), the maximum purchase price follows directly from the LTV rule: Max Purchase Price = Max Loan ÷ 0.75 (for a 75% LTV first-property private loan). The downpayment is the remaining 25%: at least 5% must be cash, the remaining 20% can be CPF or cash. However, you must then subtract two transaction costs from your available cash+CPF pool before the deal can close. Buyer's Stamp Duty (BSD) is payable on every purchase: 1% on the first S$180,000, 2% on the next S$180,000, 3% on the next S$640,000, 4% on the next S$500,000, 5% on the next S$1.5 million, and 6% on amounts above S$3 million (as of 2026-06). For a S$1.2 million property, BSD is approximately S$33,600. If you are a Singapore Permanent Resident buying a first property, or a Singaporean buying a second property, Additional Buyer's Stamp Duty (ABSD) also applies at rates published on the MAS ABSD explainer page. Both BSD and ABSD must be paid within 14 days of signing — if they come from your cash reserve, they reduce what is left for the downpayment, effectively lowering your maximum affordable price. Use the TDSR Calculator to model how changing your existing-debt balance shifts your headroom, and compare suburbs using the HDB Prices Map or Private Property Price Heatmap to see which districts fit within your ceiling.
Step-by-step: calculate your maximum affordable property price
- Establish gross monthly income (with haircuts). Take your fixed monthly salary (before CPF deduction). If you receive variable income (commission, overtime, rental income from an existing property), banks typically apply a 30% haircut — so S$5,000 of gross variable income counts as S$3,500 for TDSR purposes. Add the haircut-adjusted variable amount to your fixed salary. If you are self-employed, banks use the average of the last two years' NOA income divided by 24. Write down this assessed gross monthly income figure.
- Compute your TDSR ceiling (55%). Multiply assessed gross monthly income by 0.55. Example: assessed income S$10,000 → TDSR ceiling S$5,500/month. This is the absolute maximum total monthly debt you are permitted to carry (as of 2026-06).
- Subtract existing monthly debt obligations. Add up all current monthly commitments: car loan instalment, personal loan instalment, any other property loan, credit card minimum payments (banks use 5% of outstanding card balance as the monthly obligation). Example: car loan S$900 + personal loan S$300 + credit cards S$150 = S$1,350 existing debt. Deduct from the TDSR ceiling: S$5,500 − S$1,350 = S$4,150 maximum monthly mortgage repayment.
- If buying HDB or EC: also check the MSR ceiling (30%). Multiply assessed gross monthly income by 0.30. Example: S$10,000 × 0.30 = S$3,000. The mortgage repayment for an HDB flat may not exceed S$3,000/month regardless of TDSR. Use the lower of the TDSR-derived figure (S$4,150) and the MSR ceiling (S$3,000). For HDB in this example: S$3,000/month is the binding cap. Private property buyers skip this step.
- Apply the stressed interest rate to size the loan. Use a stress rate of 4.0% p.a. for private property or 3.5% p.a. for HDB concession loans (as of 2026-06 — verify with your bank before proceeding). Run your maximum repayment and intended tenure through the Mortgage Calculator to back-solve the maximum loan principal. Example (private, 30-year tenure, S$4,150/month at 4.0%): maximum loan ≈ S$868,000. Example (HDB, 25-year tenure, S$3,000/month at 3.5%): maximum loan ≈ S$570,000.
- Apply the LTV rule to get the maximum purchase price. Divide the maximum loan by the LTV ratio. For a first private property loan from a bank: max loan ÷ 0.75. Example: S$868,000 ÷ 0.75 = S$1,157,333 max purchase price. Cross-check: you need a 25% downpayment = S$289,333, of which at least S$57,867 (5%) must be cash and the rest can come from CPF OA. For HDB flat with HDB loan (LTV up to 80%): S$570,000 ÷ 0.80 = S$712,500 max price; downpayment is 20% = S$142,500, at least S$14,250 cash (but HDB allows full 20% from CPF if you have sufficient balance).
- Deduct Buyer's Stamp Duty (and ABSD if applicable) from your cash reserve. Calculate BSD on the maximum purchase price using the progressive rate table. For S$1,157,333: BSD = (1% × S$180,000) + (2% × S$180,000) + (3% × S$640,000) + (4% × S$157,333) = S$1,800 + S$3,600 + S$19,200 + S$6,293 = S$30,893 BSD. If you must pay ABSD (e.g., second property or PR), add the ABSD amount. Total stamp duties must come from cash (BSD cannot use CPF unless topping up the CPF OA first). Subtract from your cash reserve to confirm you still have the 5% minimum cash downpayment available after paying stamp duty. If not, reduce the target purchase price until the math balances.
- Sense-check with the live tool. Open the Affordability Calculator, enter your income, existing debts, CPF balance, cash savings, intended tenure, property type, and residency status. The tool applies all the rules above in sequence and outputs your maximum purchase price, maximum loan, required downpayment split, and estimated stamp duty. If the number differs from your manual calculation, the tool is more precise — it uses current stress-rate conventions and the full BSD/ABSD schedule. Once you have your ceiling, browse properties by district using the Property Comparison tool to see which options fall within budget.
Frequently asked questions
Does TDSR count my CPF contribution as income?
No. TDSR is computed on gross income before any deductions, but Singapore banks define gross income as gross employment income before employee CPF deduction — the standard payslip gross figure. Your employer's CPF contribution is not added on top. What matters is the gross monthly figure on your payslip or your Notice of Assessment annualised and divided by 12 (as of 2026-06).
What if I have a co-borrower? Do we combine incomes?
Yes — when two borrowers apply jointly, the bank combines both assessed gross monthly incomes to compute the TDSR ceiling, and combines all monthly debt obligations from both borrowers. This can significantly raise the maximum loan. However, both borrowers are jointly and severally liable, and both will have the property recorded against their name for ABSD purposes on future purchases. If one borrower has poor credit or a high debt load, the combined TDSR position may actually be weaker than the stronger borrower applying alone (as of 2026-06).
I have a car loan ending in six months. Should I pay it off first to improve my TDSR?
Possibly. If the remaining outstanding balance is small and you can clear it without depleting the cash you need for the downpayment, doing so removes that monthly obligation from the TDSR calculation. However, if clearing the loan would reduce your available cash below the 5% minimum cash downpayment requirement, you may be unable to complete the purchase even with a larger approved loan. Model both scenarios in the TDSR Calculator before deciding (as of 2026-06).
What is the difference between the bank valuation and the purchase price for LTV purposes?
Banks lend against the lower of the agreed purchase price and the bank's independent valuation. If you negotiate a purchase price of S$1.2 million but the bank's valuer assesses the property at S$1.1 million, the LTV cap applies to S$1.1 million — meaning the bank lends at most S$825,000 (75% of S$1.1 million) and you must fund the S$100,000 shortfall plus the standard 25% downpayment from your own resources. Obtain an In-Principal Approval (IPA) before exercising the Option to Purchase to reduce this risk (as of 2026-06).
Can I use my CPF to pay Buyer's Stamp Duty?
Not directly. BSD and ABSD must be paid in cash within 14 days of signing the Agreement for Sale and Purchase or exercising the Option to Purchase. You can, however, first withdraw CPF funds to your bank account if you meet the withdrawal conditions, and then pay the stamp duty from that cash — but this route requires advance planning and the withdrawal conditions under the CPF Housing Withdrawal rules must be satisfied. In practice, most buyers budget stamp duty as a separate cash outlay on top of the 5% minimum cash downpayment. Review the CPF Board's CPF housing withdrawal guide for full conditions (as of 2026-06).