In Singapore, TDSR, MSR, LTV and SORA answer four different housing-loan questions. TDSR limits a bank borrower’s total monthly debt repayments, currently generally to 55% of qualifying income. MSR limits the mortgage repayment on specified public housing to 30% of income. LTV limits the proportion of the property’s value that can be borrowed, with an eligible HDB loan currently allowing up to 75%. SORA is an interest benchmark used by floating-rate bank housing loans.
If you searched for HDB loan vs bank loan, TDSR 55%, MSR 30%, SORA home loan Singapore, HDB mortgage interest 2026, HFE letter, fixed vs floating mortgage or refinancing fees, your best first step is not to choose the lowest headline rate. Establish eligibility, actual loan amount, required downpayment, monthly instalments, benchmark and repayment risks. The maximum amount a lender will consider is not necessarily what is comfortable for the family.
Quick summary: HDB’s concessionary loan rate is 2.6% per year for October–December 2026, pegged to 0.1% above the CPF Ordinary Account interest rate. Banks may offer fixed initial periods or floating SORA-plus-spread packages. Apply for a valid HFE letter, compare loan offers on the same amount and tenure, plan cash/CPF requirements and allow for interest-rate increases. This guide turns the common mortgage abbreviations into practical decisions.
TDSR vs MSR vs LTV vs SORA: the quick table
| Term | Plain English | Current practical reference |
|---|---|---|
| TDSR | Total monthly debt compared with qualifying income | Generally 55% cap for bank property loans |
| MSR | Housing instalment compared with qualifying income | Generally 30% for specified public housing |
| LTV | Loan as percentage of permitted property value | Up to 75% for eligible HDB and first housing bank loan |
| SORA | Singapore overnight interbank interest benchmark | Floating mortgage rates may use 3-month compounded SORA |
| HDB concessionary rate | Rate on eligible HDB mortgage | 2.6% per annum Oct–Dec 2026 |
| HFE | Flat eligibility and available grants/loan assessment | Normally valid nine months |
61 Singapore home loan and mortgage vocabulary terms
Read the practical column to distinguish a loan limit from the price of credit. A borrower’s approved LTV may allow a large loan while their TDSR, MSR or personal expenses mean the monthly payment is still too much.
| Term | Meaning in plain English | Why it affects financing |
|---|---|---|
| Mortgage | Long-term loan secured against property | Repayment obligations continue until discharged |
| Home loan | Money borrowed to buy qualifying housing | HDB and bank products have different rules |
| HDB housing loan | Housing loan granted by HDB to eligible flat buyers | Currently 2.6% p.a. in Q4 2026 |
| Bank housing loan | Home financing from regulated financial institution | Could have fixed or SORA-linked rates |
| HFE letter | HDB Flat Eligibility letter | Documents eligibility, grants and available HDB loan amount |
| HFE validity | Time an HFE letter remains usable | Normally nine months |
| LTV | Loan-to-Value ratio | Maximum loan share of relevant property value |
| LTV cap | Maximum allowed lending percentage | Currently up to 75% for eligible first property loans |
| Downpayment | Price amount not financed by the loan | Funding may involve cash, CPF and eligible grants |
| Cash downpayment | Minimum amount payable from cash | Bank loan may require a minimum 5% cash component |
| CPF downpayment | Using Ordinary Account for allowable purchase cost | Subject to CPF housing withdrawal limits |
| EHG | Enhanced CPF Housing Grant | Eligible grant may reduce cash/CPF requirement |
| Valuation | Assessment of property’s value | Loan may use lower price or valuation |
| Valuation gap | Difference when property price exceeds valuation | May require additional cash |
| HDB resale price | Amount agreed with resale seller | Not necessarily same as value used for loan |
| MSR | Mortgage Servicing Ratio | Mortgage instalment limit normally 30% for specified public housing |
| TDSR | Total Debt Servicing Ratio | Bank property loan total monthly debt cap generally 55% |
| Gross income | Income before relevant deductions | Used in affordability measures |
| Net income | Take-home earnings after deductions | Different from defined TDSR income |
| Monthly debt | Recurring repayments counted in TDSR | Can include car loan, card and other commitments |
| Debt-to-income ratio | Debt payments as fraction of qualifying income | Related concept, not necessarily formal TDSR result |
| Stress test | Affordability checked against assumed higher interest | MAS notes banks use 4% assessment rate in Oct 2026 |
| Tenure | Duration of housing loan | Longer terms lower monthly payments but increase interest |
| HDB loan tenure | Maximum permitted HDB mortgage period | Up to 25 years or tighter age/lease-based period |
| Bank public-housing tenure | Bank mortgage duration for HDB flats | Up to 30 years but stricter LTV after 25 years |
| Age condition | Borrower age affects maximum loan term | HDB applies average applicants’ age formula |
| Remaining lease | Years left on HDB flat’s lease | Can reduce available loan/CPF funding |
| Loan amortisation | Gradual reduction of principal through payments | Installments include principal and interest |
| Principal | Borrowed amount not yet repaid | Decreases with successful instalments |
| Interest | Cost of using borrowed money | Varies by principal, rate and time |
| Interest rate | Annualised cost charged on outstanding loan | May change or be locked for contract term |
| 2.6% HDB rate | Current concessionary HDB loan rate | Pegged 0.1 percentage point above CPF OA rate |
| CPF OA rate | Ordinary Account interest rate | Currently 2.5% p.a. under 2026 floor |
| Fixed-rate package | Bank rate fixed for specified initial period | Later repricing/reversion rules matter |
| Floating-rate package | Bank mortgage rate moving with benchmark | Could increase when benchmark rises |
| SORA | Singapore Overnight Rate Average | MAS-administered transaction-based SGD interest benchmark |
| Compounded SORA | SORA rates combined across specified period | Common 1-month and 3-month mortgage benchmark |
| 3-month SORA | Compounded three-month overnight benchmark | Not a promise of constant rate over whole loan |
| Spread | Additional percentage points bank charges above SORA | Read full SORA + spread quotation |
| Repricing | Switching mortgage package with same bank | May attract administrative conditions |
| Refinancing | Moving outstanding loan to another lender | May involve legal and valuation fees |
| Lock-in period | Period with possible early redemption penalty | Read exact dates and charges |
| Early repayment | Paying principal ahead of schedule | Conditions differ by lender |
| Prepayment penalty | Fee for specified early loan repayment | Can apply within lock-in |
| Clawback | Repayment of earlier bank subsidy or incentive | Check legal/valuation subsidy terms |
| Monthly instalment | Scheduled mortgage payment | Depends on loan amount, rate and tenure |
| Mortgage balance | Remaining loan principal | Relevant to HPS and refinancing |
| Credit assessment | Bank/lender review of borrower risk | An eligibility estimate is not approval |
| Approval in Principle (AIP) | Indicative bank willingness to lend | Subject to formal underwriting |
| Loan offer | Bank’s formal terms for eligible borrower | Compare interest, lock-in and fees |
| HPS | Home Protection Scheme | Mortgage protection when using CPF on HDB loan instalments |
| Fire insurance | Cover for specified fire damage | Not protection against loss of mortgage payer |
| Interest-rate risk | Possibility repayments rise as rates increase | Relevant to floating rate loans |
| Liquidity buffer | Funds kept for unexpected expenses | Supports resilience to income or rate shocks |
| Emergency fund | Accessible money for urgent household needs | Separate from locked CPF money |
| Affordability | Capacity to pay without unacceptable hardship | Different from maximum permitted borrowing |
| Loan calculator | Tool estimating payment and interest | Results depend on assumed rate and actual approval |
| Concessionary | Government housing finance with specified favourable terms | Not guaranteed identical forever |
| Loan approval | Formal lending decision | Different from HFE estimate or AIP |
| Mortgage redemption | Fully repaying loan | May require formal discharge process |
| Credit score | Lender’s assessment of credit reliability | Only one part of financing approval |
What is TDSR and how do you calculate it?
The Monetary Authority of Singapore sets the Total Debt Servicing Ratio threshold for bank property loans at generally no more than 55% of the borrower’s qualifying monthly income. TDSR counts relevant monthly loan obligations, not only the new home mortgage. A person paying for a car loan and other credit commitments has less room for housing finance than someone with the same earnings but no debt.
Example: S$8,000 income and S$800 existing debt
A fictional buyer has S$8,000 qualifying gross monthly income. Fifty-five percent is S$4,400 of total monthly debt repayments under the general TDSR limit. If existing debt commitments are S$800, that leaves a theoretical S$3,600 for mortgage servicing before other lender tests. It does not mean the bank will automatically approve that instalment: property type, MSR, interest-rate stress testing, credit, age, tenure and other policies still matter.
What is MSR and why can it be tighter?
MSR is the Mortgage Servicing Ratio, normally 30% of qualifying income for housing loans on HDB flats and executive condominiums purchased directly from developers, subject to the relevant rules. HDB’s own housing loan also uses a 30% monthly-installment limit under its rules. A household may pass TDSR at 55% yet fail MSR at 30% because these measures answer different questions.
Imagine the same S$8,000 monthly income: 30% is S$2,400. If the relevant public housing purchase is subject to MSR, a S$3,000 proposed mortgage instalment could fail the MSR test even though the overall TDSR headroom appeared larger. The borrower must apply the tightest applicable financing constraint, not choose whichever ratio gives the biggest loan.
LTV: why a S$600,000 flat does not imply a S$600,000 loan
Loan-to-Value is the maximum housing loan compared with the eligible flat price or valuation, normally whichever is lower where relevant. HDB’s current eligible loan limit is up to 75%, lowered from 80% in August 2024. For a fictional resale flat priced at S$600,000 and valued at S$580,000, the 75% limit on S$580,000 would be S$435,000 before other conditions. The difference between the S$600,000 price and an approved S$435,000 loan must be financed separately with permitted cash, CPF, grants and other resources.
For a newly launched flat bought from HDB, the calculation uses the applicable new-flat price, subject to eligibility and lease conditions. If the remaining lease cannot cover the youngest applicant until age 95, the HDB LTV limit may be pro-rated lower. LTV is a ceiling, not a guarantee of getting that amount.
HDB concessionary loan vs bank housing loan
| Feature | HDB housing loan | Bank housing loan |
|---|---|---|
| Rate | Currently 2.6% per annum, pegged to CPF OA + 0.1% | Fixed period or floating, often SORA-linked |
| Eligible property | Qualifying HDB flat | Eligible property subject to bank rules |
| Loan tenure | Generally shorter of 25 years, age or remaining lease limits | Up to 30 years for public housing, with tighter LTV if over 25 |
| LTV | Up to 75% subject to flat and applicant rules | Often up to 75% for qualifying first housing loan, with conditions |
| Cash/CPF requirement | Can use permitted CPF/grants/cash for required downpayment | At least some cash payment generally required on typical bank mortgage |
| Interest-rate risk | Rate currently stable but policy-pegged | Repricing and benchmark changes can raise instalments |
| Available to all buyers? | No, eligibility assessed through HFE | Subject to bank underwriting |
CPF’s 2026 loan explainer notes that HDB’s rate offers relative predictability at present, while bank loans can include fixed periods of one to three years before reverting to a floating rate. Never assume a one-year promotional fixed rate will remain the same for 25 years. Read the rate after the lock-in and the spread above the benchmark when comparing.
SORA: what does ‘3-month Compounded SORA + 0.8%’ mean?
The Singapore Overnight Rate Average is a transaction-based benchmark administered by MAS, based on eligible unsecured overnight interbank Singapore-dollar borrowing. MAS publishes an overnight SORA rate and compounded 1-, 3- and 6-month reference rates. A bank mortgage can use a selected compounded rate and add a fixed spread under its contract.
In a fictional interest quote, 3-month Compounded SORA is 1.20% and the lender’s spread is 0.80 percentage points. The resulting rate is 2.00% per annum for the relevant repricing period, not 1.20% or 0.80% alone. This is an illustration, not a live mortgage offer. If SORA rose to 2.50%, the same spread would produce 3.30%, subject to the actual contract’s reset and floor/cap provisions.
Fixed versus floating: the risks behind the label
A fixed rate can give certainty for an agreed period while a floating rate changes with its benchmark or other contract rules. Neither name proves which product will be cheaper over its full life. A lower starting floating rate can cost more after rates rise, while a fixed deal may have a less attractive rate if market interest falls. Consider prepayment terms, repricing options, valuation and legal fees as well as the headline.
The MAS October 2026 response to Parliament states that banks assess whether borrowers can afford housing loans at a stress-test interest rate of 4%, even when prevailing quoted rates are lower. This is a prudent test rate; it is not a claim that all bank mortgages currently charge 4%. A household should run its own affordability scenario at higher rates as well.
What does a rate change do to monthly repayments?
For an illustrative S$400,000 fully amortising loan over 25 years, monthly repayment at 2.6% per annum is approximately S$1814.68. At 4% with the same remaining principal and full 25-year term, it would be approximately S$2111.35. These are textbook calculations assuming monthly payments and a constant rate; a real existing mortgage’s remaining tenure, interest convention, instalment dates and product fees change its result.
| Scenario | Illustrative monthly payment | What changes |
|---|---|---|
| S$400,000 / 25 years / 2.6% | S$1814.68 | Lower assumed annual rate |
| S$400,000 / 25 years / 4% | S$2111.35 | Higher assumed annual rate |
| Difference at those assumptions | S$296.67 | Shows sensitivity to interest, not a rate forecast |
HFE, HDB application and bank pre-approval
The HDB Flat Eligibility letter assesses whether the applicant household may buy eligible public housing, receive qualifying grants and take an HDB housing loan. HDB currently describes its HFE letter as valid for nine months. It may show prudent, moderate and maximum loan amounts. These are tools for decision-making, not commands to borrow the maximum.
A bank Approval in Principle (AIP) is different. It indicates a bank’s preliminary willingness to lend under assumptions, while formal underwriting, property valuation and final documents determine the actual offer. A prospective buyer can compare their HFE letter and banks’ loan terms without treating a preliminary estimate as a guaranteed disbursement.
Downpayment, valuation gap and cash
For a qualifying 75% LTV mortgage, the remaining 25% of the eligible flat price or value must be funded by the buyer, potentially from cash, CPF Ordinary Account savings and eligible housing grants, subject to each financing route’s rules. With a bank mortgage, some payment commonly must be in cash: on an eligible first home loan at 75% LTV, at least 5% of the relevant purchase price is generally cash, with other permitted downpayment sources subject to restrictions.
A resale flat’s agreed price can exceed HDB’s valuation. That difference may not be financed under the same 75% loan limit and can require additional cash. For example, if a flat is priced at S$600,000 but valued at S$580,000, the price-valuation gap is S$20,000. The buyer should prepare a customised financing plan rather than assume a mortgage covers the entire price.
Tenure, total interest and repayment trade-offs
Longer mortgage tenure typically reduces the monthly instalment at a given rate but increases total interest paid if all else remains equal. A shorter period increases each monthly payment but can reduce long-term finance cost. HDB’s concessionary loan period is generally capped at the shortest of 25 years, 65 years minus applicants’ average age and remaining lease minus 20 years, subject to the property’s lease characteristics.
That is why two households buying similarly priced flats can have different maximum approved loans and instalments. Age, remaining flat lease, credit history, existing obligations and income may matter. Do not borrow the maximum solely because the calculator permits it; keep a buffer for unemployment, repairs and childcare.
Refinancing, repricing, lock-in and clawback
| Word | What it means | Cost to check |
|---|---|---|
| Refinancing | Move mortgage to another lender | Legal, valuation and any early-exit cost |
| Repricing | Switch rate package within current bank | Repricing fee and revised terms |
| Lock-in | Contractual restricted period | Early repayment penalties |
| Clawback | Return earlier fee subsidy or incentive | Clawback expiry and amount |
| Prepayment | Extra repayment toward principal | Fee, notice and minimum amount |
| Redemption | Full settlement of mortgage | Loan discharge process and fees |
An attractive refinance offer can become expensive if the existing bank charges a lock-in penalty, the previous subsidy must be clawed back, or legal fees outweigh potential interest savings. Compare total costs over the period that matters to you. HDB’s housing loan rules may also affect options for switching between HDB and bank financing; ask the actual provider before making an irreversible choice.
A practical checklist before signing a home loan
- Apply for the HFE letter and check what it actually confirms about loans and grants.
- Compare the flat purchase price with its relevant valuation and available LTV limit.
- Use TDSR, MSR and your own budget together; do not mistake one passed ratio for universal approval.
- Compare bank fixed versus floating rates, SORA benchmark, spread and reset frequency.
- Read the complete repayment period, early repayment penalties and repricing/refinancing provisions.
- Calculate total required cash, CPF, grants and fees before paying a booking deposit.
- Stress-test monthly payments at a higher interest rate and lower household income.
- Check HPS and required insurance obligations and maintain an emergency fund.
- Seek independent clarification on any contract clause you cannot explain in plain language.
Common home loan myths corrected
| Myth | More accurate explanation |
|---|---|
| TDSR is the same as MSR. | TDSR looks at total debt; MSR focuses on the relevant mortgage. |
| I can borrow 75% of any resale asking price. | LTV may be applied to the lower of price or valuation. |
| HDB loan interest is guaranteed at 2.6% forever. | It is currently 2.6%, pegged to CPF OA plus 0.1 percentage point. |
| Bank rate fixed for two years means fixed for 25 years. | The agreement usually specifies a new rate after the initial period. |
| SORA is a government-set mortgage interest rate. | SORA is a published benchmark, while bank spread and terms determine mortgage rate. |
| My HFE maximum is my ideal borrowing amount. | A smaller loan may be more prudent and reduce interest cost. |
| Low current monthly payment proves a floating loan is safe. | Higher rates and income changes may affect affordability. |
| A bank AIP is the final mortgage offer. | Formal approval depends on full underwriting and valuation. |
Frequently searched Singapore home-loan questions
What is TDSR in Singapore?
Total Debt Servicing Ratio, generally capped at 55% of relevant monthly income for bank property loans, counting other debt repayments.
What is MSR?
Mortgage Servicing Ratio, generally 30% for relevant public-housing loans, with specific qualifying rules.
What is the current HDB loan interest rate?
CPF announced 2.6% per annum for 1 October–31 December 2026, 0.1 percentage point above the CPF OA rate.
What is SORA for mortgage loans?
Singapore Overnight Rate Average, a MAS-administered benchmark that can be compounded over a term such as three months and used plus a bank spread.
How much is HDB’s LTV cap?
Up to 75% for eligible HDB loans under the current conditions, reduced from 80% from August 2024.
Is a 30-year HDB loan available?
HDB concessionary loans are generally capped at 25 years or shorter under age and lease tests. Banks may have public-housing tenure up to 30 years with tighter LTV conditions.
What is an HFE letter?
An HDB Flat Eligibility letter assessing purchase eligibility, qualifying grants and available HDB loan; normally valid for nine months.
Does a fixed-rate bank loan stay fixed until paid off?
Not ordinarily. Fixed packages commonly last one to three years before reverting or needing another rate arrangement.
What happens if my bank loan interest rate increases?
Depending on contract and outstanding loan, repayment instalments or schedule may change; stress-test affordability and consult the bank early.
What is the difference between refinancing and repricing?
Refinancing changes lender; repricing changes the package with the existing lender. Both can carry costs.
Four learning exercises
| Exercise | Task | What it teaches |
|---|---|---|
| 1 | Compute 55% TDSR and 30% MSR on S$8,000 monthly income | Different affordability caps |
| 2 | Compare S$600,000 price with S$580,000 valuation | LTV uses eligible value and may create cash gap |
| 3 | Add hypothetical 3-month SORA 1.2% and spread 0.8% | Benchmark versus bank charge |
| 4 | Compare S$400,000 payment at 2.6% and 4% | Interest-rate risk |
Related eduKateSG reading
- Singapore Vocabulary | HDB, Resale and HFE — home purchase terms.
- Singapore Vocabulary | HDB Fire Insurance and HPS — loan protection.
- Singapore Vocabulary | CPF and Savings — financing from OA.
- Master Vocabulary Hub — related Singapore chapters.
Official MAS, HDB and CPF sources
- MAS: TDSR, MSR and LTV — housing prudential rules.
- MAS: What Is SORA? — benchmark construction.
- MAS October 2026: Housing Loan Affordability Stress Test — 4% test assumption.
- HDB: Housing Loan Eligibility and LTV — loan caps and tenures.
- HDB: Comparing HDB and Financial Institution Loans — financing.
- CPF September 2026: HDB Mortgage Rate — 2.6% for Q4.
- CPF: HDB Loan or Bank Loan? — practical comparison.
Reviewed 4 November 2026. This guide is educational, not personalised financing advice or a bank loan offer. Interest rates, policies and an individual’s eligibility can change; check the actual HFE, MAS rules and lender contract.