Buying process guide
Booking fee vs option fee vs exercise fee: what each one actually locks in
By Winfred Quek, Associate Marketing Consultant · CEA R073319H · Crestbrick Pte Ltd (L31010886H) · Published 13 July 2026
Facts verified: 13 July 2026 · General guidance only, always confirm current fee bands and procedures with HDB or your conveyancing lawyer · Sources attributed below
Almost every buyer I sit down with, first timer or seasoned upgrader, mixes up these three terms at some point. It is an easy mistake, because all three involve handing over money before you own anything, and the vocabulary shifts slightly depending on whether you are buying an HDB resale flat, a private resale unit, or a brand new launch straight from the developer. But the three payments are not interchangeable. Each one marks a different point on the commitment ladder, and each one carries a different consequence if things do not go to plan. This guide walks through what happens at each stage, in order, so you know exactly what you are signing up for the next time a form lands in front of you.
The booking fee: reserving a new launch unit before any contract exists
The booking fee only shows up in one context: buying directly from a developer at a new launch. When you walk into a showflat and decide on a unit, the developer asks for a booking fee to hold that unit for you while the paperwork catches up. At this point there is no Option to Purchase yet, nothing has been signed, and legally you are not bound to anything. What you have bought is a short window in which the developer takes the unit off the table for other buyers and prepares the Option to Purchase in your name.
Once the Option to Purchase is issued, the same payment you handed over as a booking fee is reclassified as the option fee. There is no separate, additional payment required to make that switch, the booking fee simply becomes the option fee the moment the option document exists. Under the Housing Developers Rules that govern the sale of uncompleted private residential property, the option fee a developer can collect is capped, and the developer is required to issue the Option to Purchase within a set window after the booking fee is paid. This structure exists precisely so that a booking fee cannot sit in limbo indefinitely with no formal option attached to it.
The option fee: buying yourself an exclusive window to decide
The option fee is the payment that actually purchases something concrete: an Option to Purchase. This is a legal document, granted by the seller to the buyer, that gives the buyer the exclusive right to buy the property at the agreed price within a defined option period. During that window, the seller cannot sell to anyone else. If you let the window lapse without exercising, the option simply expires and the seller keeps the property, and typically the option fee too, as compensation for having taken it off the market while you decided.
The mechanics differ slightly by transaction type. For an HDB resale flat, the option fee is an amount the buyer chooses within a band of one dollar to one thousand dollars, paid directly to the seller once both parties agree on price and the buyer is ready to secure the flat. This gives the buyer a defined option period, commonly around twenty one days, to arrange financing and decide. For a private resale purchase, there is no fixed amount set by regulation, buyers and sellers negotiate it, and a customary figure in the region of one percent of the purchase price is often used as a starting point, though this is market convention rather than a rule. For a new launch, as covered above, the option fee is simply the booking fee once the Option to Purchase has been issued, and the amount a developer can collect is capped under the Housing Developers Rules.
| Payment | When it applies | What it secures |
|---|---|---|
| Booking fee New launch only | At the showflat, before any Option to Purchase exists. | A temporary hold on the unit while the developer prepares the Option to Purchase. |
| Option fee All transaction types | When the Option to Purchase is issued, resale or new launch. | An exclusive option period during which the seller cannot sell to anyone else. |
| Exercise fee All transaction types | When you formally exercise the option within the option period. | A binding contract of sale, converting the option into a committed purchase. |
Fee bands and option periods are general guidance and can be revised by HDB or under the Housing Developers Rules. Verify the current figures before relying on them.
The exercise fee: the moment the deal becomes binding
Exercising the Option to Purchase is the step buyers underestimate the most. It is not a formality, it is the point at which you go from having a choice to having a contract. To exercise, you sign and return the Option to Purchase within the option period and pay the exercise fee alongside it. For an HDB resale flat, the exercise fee is again an amount within a defined band, and together with the option fee already paid, it is later offset against the purchase price at completion. For a private resale purchase, exercising typically means topping up the deposit to a customary total agreed between the parties, alongside signing the formal Sale and Purchase Agreement. For a new launch, exercising within the option validity period converts the option into the Sale and Purchase Agreement, and the progressive payment schedule under the Housing Developers Rules begins.
The practical difference before and after exercising is stark. Before you exercise, walking away costs you the option fee and nothing more, the seller keeps that as compensation and the flat or unit goes back on the market. After you exercise, you are legally committed to complete the purchase on the agreed terms, and pulling out at that point exposes you to the seller's legal remedies, not just a lost deposit. This is the same reason I tell every client not to exercise an option before their financing is essentially locked down. If a loan falls through after exercising, the consequences are materially worse than if it falls through before you have paid the exercise fee. My guide on what happens if a loan is rejected after exercising the OTP goes into that scenario in detail.
Why the terminology confusion causes real problems
The second problem is buyers who assume the option fee itself is refundable if they simply change their mind within the option period. It generally is not. The option fee compensates the seller for the exclusivity you asked for, whether or not you ultimately exercise. The only leverage you have during the option period is your right not to exercise, at the cost of that fee. Understanding this distinction changes how buyers should approach viewings, because it reframes the option fee as a real financial commitment, not a placeholder.
A third point of confusion is assuming these fees are separate line items that add up on top of each other. They are not cumulative costs, they are staged payments toward the same purchase price. The booking fee becomes the option fee, and the option fee plus the exercise fee together typically form the initial deposit, which is later credited against the total purchase price at completion. None of these are additional charges layered on top of the property price, they are simply early instalments of the same transaction.
How to approach each stage without losing money
- Do not pay a booking fee or option fee until financing is realistic. Get an in principle indication from your bank, or for HDB purchases, be clear on your Home Financing Eligibility position, before you commit money to secure a property.
- Treat the option period as working time, not slack. Use every day of the option period to finalise your loan, run through the paperwork with your lawyer, and confirm you genuinely want to proceed. Do not wait until the final days to start.
- Understand exactly what exercising commits you to. Read the Option to Purchase document itself, not just a summary, before you sign and pay the exercise fee. This is the point of no easy return.
- Keep every receipt and document. Option fee receipts, the signed Option to Purchase, and exercise confirmations are all evidence you may need later, particularly if a dispute arises over timing or amounts.
For the fuller picture of what the Option to Purchase document itself contains and how the exercise process works end to end, my Option to Purchase guide is the natural next read, and if you are weighing more than one property at the same time, see my piece on why only one OTP can ever be exercised.
Frequently asked questions
Is a booking fee the same as an option fee?
They are usually the same money at different stages. A booking fee is the amount you hand over at a developer showflat to reserve a new launch unit before the Option to Purchase is issued. Once the developer issues the Option to Purchase, that same payment is treated as the option fee. For resale purchases, HDB or private, there is no booking fee stage at all, buyers go straight to paying an option fee for the Option to Purchase.
How much is the option fee for an HDB resale flat?
For an HDB resale flat, the option fee is an amount the buyer chooses within a band of one dollar to one thousand dollars, paid to the seller in exchange for the Option to Purchase. This gives the buyer an exclusive option period, typically around twenty one days, to decide whether to proceed.
What happens if I do not exercise the option to purchase?
If the option period lapses without you exercising, the option simply expires and the seller is free to sell to someone else. The option fee you paid is generally not refunded, since it compensated the seller for taking the property off the market while you decided. This is why buyers should only pay an option fee once financing and intent are reasonably firm.
What does exercising the Option to Purchase actually mean?
Exercising the Option to Purchase means signing and returning it within the option period, along with paying the exercise fee. The moment you exercise, the option converts into a binding contract of sale. Before exercising you can walk away and lose only the option fee, after exercising you are legally committed to complete the purchase, subject to the usual conditions in the contract.
Do new launch condo purchases have an exercise fee?
New launch purchases follow the same booking fee, option fee, exercise structure, but the terminology developers use can vary. In practice the booking fee becomes the option fee once the Option to Purchase is issued, and exercising it within the option validity period, together with signing the Sale and Purchase Agreement, is the equivalent step to an exercise fee in a resale transaction.
About to pay an option fee?
Before any fee changes hands, it is worth confirming your financing is realistic and the numbers actually work. A Property Portfolio Analysis checks your affordability and timeline before you commit money to a deadline you cannot control.
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Winfred Quek is Associate Marketing Consultant at Crestbrick Pte Ltd, advising Singapore upgraders, investors and families. CEA R073319H. The information on this page is general and does not constitute financial, investment or mortgage advice. Fee bands, option periods and procedures referenced here can change; verify all details with HDB, your developer or your conveyancing lawyer before making any purchasing decision.