The HDB concessionary loan charges 2.6% p.a. (as of 2026-06), requires no cash downpayment, and offers rate stability. Bank loans start lower but demand a 5% cash component, carry floating-rate risk, and cap LTV at 75%. Choosing correctly can save tens of thousands over a 25-year loan tenure.
Financing your HDB flat is one of the largest financial decisions most Singapore households will make, yet many buyers arrive at the HDB Sales Office without a clear comparison of the two loan routes available to them. The HDB concessionary loan and the bank mortgage each offer a distinct risk-reward profile. One delivers certainty and a low cash outlay; the other offers a potentially lower initial rate at the cost of exposure to market-rate movements. This guide walks through every material difference — interest rates, downpayment structure, Loan-to-Value limits, flexibility, and long-term cost — so you can make a well-informed choice before you sign anything. All figures are stated as of 2026-06 and have been cross-checked against HDB, MAS, and CPF Board sources.
The two loan types at a glance
Under the HDB concessionary loan, the interest rate is set at 0.1 percentage point above the CPF Ordinary Account (OA) rate, which currently stands at 2.5% p.a. — giving a loan rate of 2.6% p.a. as of 2026-06 (source: HDB.gov.sg — Housing Loan from HDB). That rate can only change when the CPF Board revises the OA rate, an event that has occurred rarely in recent decades. The Loan-to-Value (LTV) ceiling is 80% of the flat's purchase price or valuation (whichever is lower), a limit that was tightened from 85% in August 2024 as part of HDB's cooling-measure cycle. Because CPF OA savings can fund the full 20% downpayment, buyers are not required to put up any cash at all — a significant advantage for younger households whose liquid savings are still building.
A bank mortgage offers a headline rate that is typically lower than 2.6% during the promotional period. Most Singapore bank loans are now priced on the Singapore Overnight Rate Average (SORA) plus a fixed spread — for example, 1-month compounded SORA plus approximately 0.50–0.80 percentage points (source: MAS.gov.sg — SORA). The LTV cap for bank loans is lower at 75%, which means the required downpayment is 25% of the property value. Critically, at least 5% of that downpayment must be paid in cash — CPF cannot cover it all. Bank loans also carry lock-in periods (typically two to three years) during which refinancing attracts a penalty, usually 1.5% of the outstanding loan amount.
One asymmetry that many buyers overlook: you can refinance from an HDB loan to a bank loan at any time, but once you take a bank loan you cannot switch back to an HDB loan. This means the HDB loan effectively retains an embedded option that has real monetary value — particularly valuable in rising-rate environments.
Should you take an HDB loan at 2.6% or a bank loan at a lower rate? Compare total interest, monthly payments, LTV limits, and flexibility side by side. Factor in CPF usage, prepayment penalties, and rate risk for a data-driven decision.
What This Calculator Does
Should you take an HDB loan at 2.6% or a bank loan at a lower rate? Compare total interest, monthly payments, LTV limits, and flexibility side by side. Factor in CPF usage, prepayment penalties, and rate risk for a data-driven decision.
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
What You Will Discover
After running this calculator with your personal numbers, you will know:
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 |
|---|---|---|
| Purchase Price | The total property price before additional costs. | $1,500,000 |
| Down Payment (%) | Your cash/CPF contribution as % of price. | 25.0% |
| Loan Tenure (Years) | Duration of the mortgage loan. | 25 years |
Step-by-Step Guide
- 🏠 Navigate to Calculators — Click the "Calculators" tab in the ShiokNest navigation bar. All 47 calculators are grouped by purpose for easy access.
- 🔍 Select the calculator — Choose "How to Compare HDB Loan vs Bank Loan" 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:
- Purchase Price — The total property price before additional costs.
- Down Payment (%) — Your cash/CPF contribution as % of price.
- Loan Tenure (Years) — Duration of the mortgage loan.
- 📊 Review the results — The calculator updates instantly as you change any input. Key results are displayed in KPI cards and charts that update as you adjust inputs.
- 🔄 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
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 |
|---|---|---|
| Low income household | $500K flat, $5K income, 25yr tenure | Why HDB loan (2.6%, 80% LTV, no cash down) can be better for lower incomes |
| Higher income household | $600K flat, $10K income, 25yr tenure | When bank loan (lower rate, 75% LTV) saves more despite needing cash down |
| Short tenure strategy | $450K flat, $8K income, 15yr tenure | Total interest savings with aggressive paydown — HDB vs bank |
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.
⚠️ Common Pitfalls
🤔 What-If Scenarios to Explore
Get the most value from this calculator by testing these scenarios:
- 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 Use the Mortgage Calculator
- How to Check TDSR and MSR Affordability
- How to Check HDB Grant Eligibility
Ready to Crunch Your Numbers?
Compare HDB loan (2.6%, 80% LTV) against bank loan side by side. See the total interest difference and monthly payment gap to make the right financing choice.
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.
A worked interest comparison (as of 2026-06)
Assume a $500,000 HDB flat purchase with a 25-year loan tenure. Under HDB loan conditions (LTV 80%, rate 2.6% p.a.), the loan quantum is $400,000. Downpayment is $100,000, all fundable from CPF OA — zero cash required. Using a standard amortisation formula, the monthly instalment is approximately $1,803 and total interest paid over 25 years is approximately $140,900.
Under bank loan conditions (LTV 75%, promotional SORA-based rate assumed at 1.85% p.a. for the first two years then 3.0% p.a. thereafter as an indicative reset), the loan quantum is $375,000. Downpayment is $125,000, of which at least $25,000 must be in cash. During the promotional period the monthly instalment is approximately $1,573. After rate reset to 3.0% the instalment climbs to approximately $1,851. Blended total interest over 25 years is approximately $154,000 under this indicative scenario — higher than the HDB loan because the reset rate more than offsets the early saving.
These numbers shift materially depending on where SORA settles. If SORA stays low and the spread remains competitive throughout the loan, the bank route can save $20,000–$40,000 in total interest. If SORA rises, that saving shrinks or reverses. Use the HDB vs Bank Loan Comparison Calculator and the Mortgage Calculator on ShiokNest to run your own sensitivity scenarios with different rate assumptions. For buyers who eventually wish to reassess once the lock-in ends, the Refinancing Calculator can help quantify the break-even point.
CPF usage is a common source of confusion. The CPF Board permits OA savings to service HDB loan instalments fully; for bank loans, CPF can also be used for instalments but the cash downpayment requirement remains (source: CPF.gov.sg — Using Your CPF for Your Home). Buyers with limited cash savings but strong CPF balances will find the HDB loan pathway far more accessible. Buyers with substantial cash savings who plan to hold the property for at least five to seven years before considering refinancing are the natural fit for a bank loan.
Price-level context also matters. Resale HDB transactions in mature estates (Districts 3, 10, 12) have increasingly crossed $700,000–$900,000, where the cash component of a bank loan becomes a significant liquidity event. Check recent transacted prices for the town you are targeting using the HDB Prices Heatmap and compare neighbourhoods side-by-side at ShiokNest Compare.
Step by step: deciding between HDB and bank loan
- Confirm HDB loan eligibility. You must be a Singapore Citizen buying an eligible HDB flat (Build-To-Order, resale, or DBSS), your gross monthly household income must not exceed $14,000 (as of 2026-06, verify with HDB before applying), and you must not own or have recently disposed of private property. Check your eligibility at HDB's official portal before proceeding.
- Calculate your actual cash position. List your CPF OA balance and your liquid cash savings separately. Under an HDB loan, the full 20% downpayment can come from CPF — your cash stays untouched. Under a bank loan, at least 5% of the purchase price must be in cash. For a $600,000 flat that is $30,000 in cash. If paying that out would leave you with less than six months of emergency reserves, the HDB loan is safer.
- Obtain an in-principle approval (IPA) from at least two banks. Do this even if you lean toward the HDB loan — the IPA reveals your actual offered rate and spread, which varies by bank and by your income profile. Compare the all-in effective rate, not just the teaser rate. The MAS publishes SORA daily at MAS.gov.sg so you can verify the base rate yourself.
- Model your total interest cost under three rate scenarios. Use the Loan Comparison Calculator: (a) bank rate stays promotional for the full tenure, (b) bank rate resets to current SORA + 0.8% after year 3, (c) SORA rises 1 percentage point above its current level. If scenario (c) produces a total interest cost higher than the HDB loan across your planned holding period, the HDB loan is the lower-risk choice.
- Decide based on holding period and refinancing intent. If you plan to sell or refinance within five to seven years and you have sufficient cash reserves, a bank loan with a competitive promotional rate can reduce your net interest expense. If your timeline is uncertain or you prioritise payment stability, the HDB loan's fixed-formula rate shields you from market volatility. Remember: you can always refinance from HDB to a bank later, once you are more financially established and rates are favourable.
- Check whether your CPF OA balance covers the downpayment and still leaves headroom. HDB regulations require you to retain $20,000 in your CPF OA after using it for the downpayment and stamp duties. Confirm this threshold has not changed at CPF.gov.sg.
- Review the loan letter terms before signing. For bank loans, pay attention to the lock-in period, the prepayment penalty rate, and the rate-revision clause. Confirm whether the spread is fixed for the loan tenure or only for the lock-in period. For the HDB loan, confirm the prevailing rate and ask HDB to clarify the process for partial capital repayments.
Frequently asked questions
Can I use CPF for the downpayment on a bank loan?
You can use CPF OA savings for the portion of the downpayment that exceeds the mandatory cash component — but at least 5% of the purchase price must be paid in cash. For example, on a $500,000 flat, the 25% downpayment is $125,000: a minimum of $25,000 must come from cash, while the remaining $100,000 can be funded from CPF OA, subject to your CPF balance and the CPF valuation limit on the property.
What happens to my HDB loan if the CPF OA rate rises above 2.5%?
The HDB concessionary loan rate is contractually set at 0.1% above the prevailing CPF OA rate. If the CPF Board raises the OA rate, your HDB loan rate increases by the same amount on the next revision date. While this means the rate is not fixed in absolute terms, it is transparent and formula-bound — you will not be surprised by a rate change driven by money-market movements the way a SORA-pegged bank loan can be. The CPF Board announces OA rate changes in advance (source: CPF.gov.sg).
Can I refinance from a bank loan back to an HDB loan if rates rise?
No. Once you take a bank loan for an HDB flat you permanently lose the right to refinance to an HDB concessionary loan. You can refinance from one bank to another, or from a bank loan to another bank loan, but the HDB loan option is irrevocably closed. This is one of the most important asymmetries between the two routes — factoring in this one-way door should weigh heavily in your decision if you have any uncertainty about future rate conditions.
Is the HDB concessionary loan available for all flat types, including resale flats?
Yes, the HDB concessionary loan is available for eligible new BTO flats, balance flats (from HDB's sales exercises), and resale HDB flats, provided you meet HDB's eligibility criteria — including citizenship status, income ceiling, and ownership history. Private property owners and those who have recently disposed of private property are not eligible. Full and current eligibility criteria are published at HDB.gov.sg and should be verified before submission, as they are subject to revision during cooling-measure cycles.
How does the lower LTV on a bank loan affect my total upfront cash requirement?
The LTV ceiling for bank loans is 75%, versus 80% for HDB loans — a 5-percentage-point difference that materially changes your upfront outlay. On a $600,000 flat, a bank loan covers at most $450,000, meaning you must fund $150,000 from CPF and cash combined. Of that, at least $30,000 (5%) must be cash. Under an HDB loan the quantum is $480,000, the downpayment is $120,000, and if your CPF OA balance covers it, zero cash is required. In a high-price resale market, this difference can determine whether a purchase is feasible without liquidating other assets.