The HDB resale process starts with eligibility and financing, before you pay for an Option to Purchase. The two dates to watch are the option’s expiry and the later resale-application deadline agreed with the seller. They are separate, and neither is a generic private-condo timetable.
This guide follows a resale buyer from the HDB Flat Eligibility (HFE) letter to handover, with a worked S$720,000 example. Checked on 18 September 2026. It covers the process rather than promising a particular grant, loan or completion date.
1. Obtain your HFE letter and choose a workable budget
A valid HFE letter is required when the seller grants you an OTP and when you submit the resale application. It is not only for people taking an HDB loan or claiming grants. The letter sets out your household’s purchase eligibility and assessed housing support. HDB’s resale buying guide says the letter is valid for nine months.
Check that the intended owners and occupiers match your application. If citizenship, family composition or property ownership changes, resolve that with HDB before committing. The rules for buying a flat, receiving grants and obtaining an HDB loan are not identical. A broad statement that every former private-property owner must wait 30 months before any resale purchase is not a safe eligibility test.
If borrowing from a bank, get an in-principle assessment early and ask what could change the approved amount. It does not replace the formal Letter of Offer needed before exercise. Budget separately for price contribution, stamp duty, legal fees, any agreed agent fee, valuation request, moving and essential repairs.
2. Check the actual flat before agreeing on price
Check the household’s eligibility for the block under the Ethnic Integration Policy and applicable SPR quota. Confirm the remaining lease and how it affects CPF usage and borrowing. Use comparable completed transactions, rather than the highest asking price in an advert, when deciding an offer.
Visit at a time that reveals the household’s likely routine: the school journey, evening traffic, lift queues and noise around the block. Inspect windows, plumbing, damp patches and renovations. Ask which fixtures remain. Keep a written list of agreed items and have your adviser confirm how they should be recorded consistently with the prescribed OTP.
Agree the expected completion and vacant-possession arrangements. If the seller needs a temporary extension of stay, price in your extra rent, storage and delayed renovation. A legal completion date is not necessarily the day you can move in.
3. Use the HDB OTP and its cash deposit caps
Under HDB’s prescribed OTP procedure, the option fee is between S$1 and S$1,000. The option fee and option exercise fee together cannot exceed S$5,000. These are cash payments towards the purchase price, not a 1% option fee plus a 4% exercise fee.
The option expires at 4pm, 21 calendar days after the option date. Weekends and public holidays count. For an option dated 18 September 2026, that means 9 October 2026 at 4pm. Use the date on your actual form and arrange payment and delivery in time.
If you decide not to exercise, the option fee is forfeited. Do not exercise simply because you have already paid it: an unaffordable completed purchase is a much larger problem. Our OTP guide distinguishes HDB, private resale and developer contracts.
4. Request the value and confirm financing before exercise
If using CPF savings or a housing loan, submit HDB’s Request for Value by the next working day after the seller grants the OTP. The request costs S$120 including GST. Obtain the outcome before deciding to exercise.
When the agreed price is above HDB’s value, the difference is cash over valuation (COV). That excess cannot be funded with CPF or the housing loan. Confirm the lower borrowing base and the cash needed, rather than adding only the COV to an unchanged loan estimate. Our COV guide explains this risk.
Confirm the financing mode in My Flat Dashboard. If taking a bank loan, obtain a valid Letter of Offer before exercise. If taking an HDB loan, use the assessed amount in the HFE letter and the applicable financial plan, rather than assuming the maximum percentage will be granted.
A S$720,000 purchase: the funding arithmetic
This illustration assumes a S$720,000 agreed price, S$710,000 value and an eligible first HDB housing loan at the full 75% limit. It assumes sufficient remaining lease, an assessed loan large enough and eligible CPF funds. Actual borrowing can be lower.
| Item | Amount and treatment |
|---|---|
| Maximum loan in this example | 75% × S$710,000 = S$532,500 |
| Price funded by the buyer | S$720,000 − S$532,500 = S$187,500 |
| COV within that contribution | S$10,000, payable in cash |
| Remaining contribution at the valuation base | S$177,500, funded with eligible CPF and/or cash |
| Assumed OTP cash deposit already paid | S$5,000, credited towards the price |
| Price contribution still to fund after that deposit | S$182,500 |
| Residential BSD on S$720,000 | S$16,200, additional to the purchase price |
The S$10,000 COV is already inside the S$187,500 total contribution. The S$5,000 deposit is also part of the price: do not add either a second time. Have HDB or your solicitor show how the cash already paid is credited in the final financial plan and which balance must still be cash.
HDB’s current loan page sets the maximum at 75% of the lower of resale price or value, with possible reductions for lease coverage and credit assessment. It also explains the use of available CPF savings, including the option to retain up to S$20,000 in each buyer’s Ordinary Account. The maximum loan is not automatically the amount HDB will disburse when more CPF must first be used.
The BSD calculation uses IRAS’s residential bands: S$1,800 on the first S$180,000, S$3,600 on the next S$180,000 and S$10,800 on the remaining S$360,000. Confirm separately any ABSD liability, legal and administrative fees, insurance and the payment deadlines in your transaction documents.
5. Exercise, then coordinate both resale applications
Exercise involves signing the acceptance, paying the agreed exercise fee and delivering the documents as required. Keep the receipt and a copy of the completed OTP.
HDB’s resale application rules contain two distinct requirements. Submit within the timeframe agreed in Clause 12 of the OTP. Once either party submits their portion, the other must submit within seven calendar days. The rule is not that both sides must always apply within seven days of exercise.
If the second portion is late, the application lapses and both sides must restart and pay the application fees again. This administrative consequence should not be described as automatic forfeiture of a 5% deposit. Any contractual dispute requires advice on the actual agreement and circumstances.
6. Follow HDB’s acceptance, payment and completion notices
HDB says an application in order is accepted within 28 working days after it receives the complete application and supporting documents. The approximately eight-week processing period to completion starts at HDB’s acceptance, not at the first viewing, option payment or submission of one party’s form.
During that period, check My Flat Dashboard, endorse the required documents and pay by the deadlines given. Have your conveyancing representative confirm the CPF withdrawal, loan disbursement, stamp fees and remaining cash. Do not use a generic private-property stamp-duty calendar as a substitute for the HDB transaction’s documents.
Before handover, inspect the flat against the agreed condition and items to remain. Record the keys and access devices, meter readings and any outstanding issue. Arrange insurance, utilities, moving and renovation around confirmed possession. An agreed temporary extension of stay requires the applicable HDB arrangement; it is not an informal assumption that the seller can remain indefinitely.
Does the purchase still work for your household?
A manageable mortgage does not pay for childcare, eldercare, commuting or a necessary bathroom repair. Keep a cash reserve after completion and test a lower-income period. For a bank package, compare the lock-in, repricing and early-repayment terms as well as the quoted rate.
Buy the flat as a place your household can occupy under its conditions. Do not rely on immediate whole-flat rental or a quick resale to make the budget work. Before exercise, you should be able to explain the price contribution, the source of each payment, the application dates and the day the home will actually be available to you.