How Much CPF Can I Use to Buy an HDB Flat in 2026?

By the HDB Calculator Team · Last reviewed 16 October 2026 · How we verify

Your CPF Ordinary Account (OA) is the engine that powers most HDB purchases in Singapore. But CPF usage isn't unlimited — there are caps, rules, and long-term trade-offs that every buyer needs to understand before signing on the dotted line.

This guide covers exactly how much CPF you can use for your HDB purchase, what limits apply, and why using "too much" CPF can backfire when you eventually sell. To see your current monthly OA contributions and projected balance by income and age, calculate your CPF OA contributions and balance.

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CPF OA: The Basics

Every employed Singapore Citizen and PR pays CPF contributions, with their employer, and part of every contribution goes into the Ordinary Account. How much depends on your age and wage; CPF Board publishes the contribution and allocation rates, and our CPF contribution calculator works out your monthly OA amount from them. Over a few years of work, the OA builds into a downpayment fund.

CPF OA savings can be used for:

• Downpayment on your HDB flat — 25% of the price, and none of it need be cash on an HDB loan
• Monthly mortgage instalments
• Stamp duties and legal fees
• Home Protection Scheme premiums

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Valuation Limit: How Much CPF Can Go Into the Flat

The Valuation Limit (VL) is the first ceiling you'll hit. It caps your total CPF usage at the lower of the purchase price or the HDB valuation.

Example

You buy a resale flat for $520,000, and HDB values it at $500,000.

• Valuation Limit = $500,000 (the lower of purchase price and valuation)
• You can use up to $500,000 in CPF OA savings to pay for the flat
• The remaining $20,000 (COV — Cash Over Valuation) must be paid in cash

For BTO flats, purchase price and valuation are identical, so the valuation limit equals the full price.

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After the Valuation Limit: It Depends on Your Loan

What happens once your CPF use reaches the Valuation Limit depends on whether the flat is new or resale and on whether you take an HDB loan or a bank loan. The 120% cap applies to bank loans, not to HDB loans.

CPF Board sets out three cases for a flat whose remaining lease covers the youngest buyer to age 95:

How much CPF Ordinary Account savings you can use, by flat and loan type (CPF Board, 2026)

Flat and loan	How much OA you and your co-owners can use
New flat bought from HDB, HDB loan	OA savings for the full purchase price of the flat, including the HDB loan
Resale flat, HDB loan	Up to the lower of the purchase price and the valuation. After that, OA can still be used for the remaining HDB loan if you have set aside your Basic Retirement Sum (BRS)
HDB flat or private property, bank loan	Up to the lower of the purchase price and the valuation. After that, up to 120% of that amount if you have set aside your BRS

Source: CPF Board, “How much CPF savings you can use for your home purchase”. See the sources block at the foot of this page for the verification date.

The BRS Condition

⚠️ On a resale flat with an HDB loan, and on any bank loan, using CPF beyond the Valuation Limit needs your Basic Retirement Sum set aside in your CPF accounts first. Without it, CPF use stops at the Valuation Limit, and the rest of the loan is paid in cash.

For members turning 55 in 2026, the Basic Retirement Sum is $110,200. The BRS is set per cohort, so the figure that applies to you is the one for the year you turn 55 — it is $114,100 for the 2027 cohort.

Example: a Bank Loan

You take a bank loan on a resale flat bought and valued at $500,000. You can use up to $500,000 of OA savings on it. Once you have set aside your BRS, you can keep using OA up to $600,000 in total (120% of $500,000). Instalments beyond that are paid in cash.

💡 How to check: Log in to your CPF website to see your retirement savings against the Basic Retirement Sum, and use CPF Board’s housing usage calculator for the exact amount you can use on a given flat.

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Lease-Based CPF Restrictions

CPF usage is restricted based on the remaining lease of the flat. These rules primarily affect resale flat buyers.

The Age-95 Rule (Lease Coverage)

CPF Board’s test is whether the flat’s remaining lease covers the youngest buyer using CPF to age 95. If it does, you can use your OA up to the lower of the purchase price and the valuation. This means:

• If you're 30 years old and buying with a 25-year-old spouse, the remaining lease must cover the 25-year-old to age 95 → 70 years of lease remaining
• If the remaining lease falls short, CPF usage is pro-rated: you can use your OA up to a percentage of the lower of the price and the valuation, and once that pro-rated limit is reached no further OA can be used, whether or not you have set aside your Basic Retirement Sum

Short Leases: the 20-Year Minimum

CPF Board allows a pro-rated amount of CPF to be used if the flat has a remaining lease of at least 20 years, even when the lease does not cover the youngest buyer to age 95. The pro-rated amount depends on the age of the youngest owner and the remaining lease. CPF Board’s housing usage calculator works out the exact amount for a given flat.

Practical impact: on an older resale flat, a reduced CPF limit means more of the price, or more of the instalments, has to be paid in cash. Check the remaining lease before committing to a resale flat, especially if you plan to rely heavily on CPF.

Earlier versions of this guide described a 60-year pro-rating threshold and a 30-year minimum. Those were the rules before 10 May 2019, when the Government replaced them with the age-95 test and lowered the minimum to 20 years. Rules: CPF Board, “How much CPF savings you can use for your home purchase” and its short-lease FAQ.

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The Age-65 Rule for Loan Tenure

There's a lesser-known rule that can limit your CPF usage: HDB caps the repayment period of its loan at the shortest of 25 years, 65 minus the average age of the applicants, and the flat's remaining lease minus 20 years.

Why does this matter for CPF? Because if your loan tenure is shortened due to age, your monthly instalments rise, which means you'll draw down your CPF faster.

Example: Buyers with an average age of 55 applying for an HDB loan get at most a 10-year tenure. That means higher monthly payments.

If you're older, use the HDB Calculator Affordability Calculator to check whether your CPF usage limits can cover the compressed payment schedule.

Repayment period: HDB’s MyNiceHome loans guide. See the sources block at the foot of this page for the verification date.

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CPF Refunds When You Sell: Accrued Interest

This is the single most misunderstood part of CPF usage — and the one that catches sellers off guard.

When you sell your flat, you must refund into your CPF OA:

1. All CPF savings used for the purchase (downpayment, instalments, fees)
2. Accrued interest — the interest those savings would have earned if left untouched in your OA at CPF’s prevailing rate, currently 2.5% per annum for the OA, compounded annually

Note: CPF Board computes accrued interest at its prevailing interest rates, compounded annually, for as long as the savings are used for the property.

We have a dedicated guide with an estimator for this number: CPF accrued interest on your HDB flat — what you owe when you sell.

Accrued Interest Explained Simply

CPF Ordinary Account savings currently earn 2.5% per annum. When you withdraw that money for housing, you lose the compound growth it would have generated. Accrued interest is the mechanism that restores that lost growth to your retirement fund.

Real numbers: If you used $100,000 of CPF to buy your flat and held the flat for 10 years, the accrued interest at 2.5% p.a., compounded annually, comes to $28,008. You'll need to refund $128,008 back to your CPF OA when you sell.

Here's how it grows over time on a $100,000 withdrawal:

Worked example: CPF accrued interest on a housing withdrawal, by years held

Years Held	Accrued Interest	Total to Refund
5 years	$13,141	$113,141
10 years	$28,008	$128,008
15 years	$44,830	$144,830
20 years	$63,862	$163,862
25 years	$85,394	$185,394

Worked example: a single $100,000 withdrawal at the current OA rate, compounded annually from the purchase date. CPF computes the real figure on each amount from its own withdrawal date, at the rates in force over the period. Not an official CPF table.

This ISN'T a penalty or a tax. The logic is simple: your CPF is for retirement. If you withdrew it early for housing, you must return what it would have become had it stayed invested.

⚠️ When You Sell, CPF Refund Is Deducted Before You Get Cash

This is the order of deduction from your sale proceeds:

1. Outstanding loan is repaid to HDB or the bank
2. CPF principal (all CPF used for the flat) is refunded to your OA
3. Accrued interest is refunded to your OA
4. You receive whatever remains as cash proceeds

If the sale proceeds aren't enough to cover steps 1–3, you get zero cash — and may even owe money.

The Real-World Trap (Negative Sale)

If your flat doesn't appreciate enough, you may sell and find that:

• Selling price − outstanding loan = $50,000 in cash proceeds
• CPF refund (with accrued interest) = $80,000
• You actually owe $30,000 back to your CPF — in cash

This is called a negative sale, and it happens more often than you'd think, especially with older flats or flats bought near market peaks.

When you sell, the CPF refund (principal + accrued interest) is deducted from your sale proceeds before you receive any cash.

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The 0.1% Spread: HDB Loan vs CPF OA

Here's an important relationship many buyers overlook:

• HDB loan interest rate: 2.6% per annum
• CPF OA interest rate: 2.5% per annum
• Spread (cost of borrowing HDB vs earning CPF): only 0.1% per annum

This tiny 0.1% spread is one of the most powerful aspects of the HDB loan system. Here's why:

• If you take an HDB loan and pay it with CPF, you're effectively paying 2.6% on the loan while your remaining OA balance earns 2.5%
• The net "cost" is just 0.1% per annum — meaning the HDB loan is almost interest-neutral relative to leaving your CPF untouched
• Compare this to a bank loan at, say, 3.5%: the spread jumps to 1%, meaning you're paying significantly more than your CPF earns

This narrow spread is one reason the HDB loan is so attractive — your borrowing cost barely exceeds what your CPF would earn if left untouched.

💡 The 0.1% Spread — Why HDB Loans Are Almost Free HDB loan rate: 2.6% vs CPF OA rate: 2.5% = 0.1% net cost This means borrowing from HDB and paying with CPF costs you almost nothing beyond what your CPF would earn anyway. A bank loan at, say, 3.5%? That's a 1% spread — 10x more expensive.

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The Retirement Risk: Are You Over-Using CPF?

While CPF makes home ownership accessible, using too much CPF OA for housing can leave you with insufficient retirement savings.

The Trade-Off

Every dollar you withdraw from CPF OA for housing is a dollar that won't compound at 2.5% for your retirement. If you use CPF aggressively for your flat throughout your working life, you may reach 55 with:

• A paid-up HDB flat (valuable but illiquid)
• Minimal CPF savings for retirement (the Basic Retirement Sum may not be met)
• The need to right-size or take a loan to meet retirement obligations

How to Protect Your Retirement

1. Voluntary top-ups to CPF while paying your mortgage
2. Partial cash payments on your monthly instalment to preserve OA balance
3. SRS contributions as a supplementary retirement fund
4. Regularly check your projected BRS and FRS (Full Retirement Sum) to see if you're on track

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How to Avoid Over-Using CPF

1. Keep Some Cash in the Game

If you can afford it, pay part of your downpayment in cash rather than emptying your CPF. This reduces the base on which accrued interest compounds.

2. Pay Instalments Partially in Cash

Even splitting your mortgage 50-50 between CPF and cash can substantially reduce your accrued interest bill over the years you hold the flat. The less CPF you use, the less you must refund with interest when you sell.

3. Use CPF as a Bridge, Not a Cushion

Think of CPF as funding your retirement, not your flat. The more you withdraw for housing, the less you'll have at 65 — and the more you'll have to repay with interest on sale.

4. Run the Numbers First

Use the HDB Calculator Affordability Calculator to model your monthly instalments and CPF usage. A few minutes of calculation can prevent a five-figure surprise at sale time.

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CPF and the HDB Loan: Key Takeaways

These are the rules that decide how much of your Ordinary Account you may put into a flat and what you must refund when you sell.

CPF housing rules and what each one means in practice

Concept	What It Means
Valuation Limit (VL)	CPF withdrawals capped at flat's value (or purchase price, whichever is lower)
After the VL	New flat with an HDB loan: OA for the full price. Resale flat with an HDB loan: OA for the rest of the loan once the BRS is set aside. Bank loan: up to 120% of the VL once the BRS is set aside
Accrued Interest	Interest you must refund to your CPF OA for early withdrawal (CPF’s prevailing rate, currently 2.5% p.a. for the OA, compounded annually)
Lease Coverage Rule	Remaining lease must cover youngest buyer to age 95; if not, CPF usage is pro-rated
Short leases	Pro-rated CPF use needs a remaining lease of at least 20 years
Age-65 Rule	HDB loan repaid within the shortest of 25 years, 65 minus the average age of the applicants, and the flat's remaining lease minus 20 years
Negative Sale	Selling doesn't generate enough proceeds to cover CPF refund + accrued interest
0.1% Spread	HDB loan (2.6%) vs CPF OA (2.5%) — borrowing costs barely above CPF returns

Compiled from CPF Board housing withdrawal rules. See the sources block at the foot of this page for verification dates.

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Your Next Step

Understanding CPF limits is just one piece of the puzzle. Here's what to do next:

• Calculate your full affordability — plug in your income, CPF savings, and target flat price to see your monthly instalments and total CPF usage over the loan.

• Check your grant entitlement — more grants mean less CPF needed upfront, reducing your accrued interest exposure.

• Learn about HDB loans in our step-by-step application guide. Your CPF usage affects your loan quantum — you may need a larger loan if your CPF usage is capped.

• Understand resale levy in our Resale Levy Guide, which affects your net proceeds.

For more questions, visit the HDB Calculator FAQ.

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Key Takeaways

• The 120% cap on CPF use applies to bank loans. With an HDB loan, a new flat can be paid for in full from OA, and on a resale flat OA can keep paying the HDB loan beyond the Valuation Limit once you have set aside your BRS.
• Accrued interest at CPF’s prevailing rate (currently 2.5% per annum for the OA, compounded annually) must be refunded to your CPF OA when you sell, which can lead to a negative sale if the flat hasn't appreciated enough.
• When you sell, the CPF refund (principal + accrued interest) is deducted from your sale proceeds before you receive any cash.
• For older flats, CPF usage is pro-rated if the remaining lease doesn't cover the youngest buyer to age 95, and pro-rated use needs a remaining lease of at least 20 years.
• Paying part of your downpayment or instalments in cash reduces your accrued interest exposure and preserves more of your retirement savings.

Always verify with HDB and CPF Board before making property decisions.