How to Sell Your HDB Flat, Step by Step (2026)

Selling an HDB flat is one of the largest financial transactions most Singaporeans will ever make, yet the process is more standardised — and more DIY-friendly — than many sellers expect. HDB has deliberately built the resale journey around its Resale Portal, with fixed forms, mandatory waiting periods and a prescribed Option to Purchase. That structure protects you, but only if you follow the sequence correctly. Here is the whole process, step by step, from eligibility check to key handover.

Step 1: Confirm you can actually sell

Before anything else, confirm your eligibility. The big one is the Minimum Occupation Period (MOP) — for most flats, you must have physically occupied the flat for five years before you can sell on the open market, and some newer flat categories carry longer periods. If you are unsure where you stand, our explainer on HDB’s MOP rules covers the details, and the HDB Resale Portal will confirm your status when you log in.

Two other checks matter at this stage. First, the Ethnic Integration Policy and SPR quota for your block and neighbourhood determine which buyer profiles you can sell to — a quota-constrained block can meaningfully shrink your buyer pool. Second, if you or your spouse own private property or have other flags on your record, resolve those questions with HDB early rather than after you have found a buyer.

Step 2: Register your Intent to Sell

Every resale journey formally begins with an Intent to Sell, registered on the HDB Resale Portal. This is not a formality you can skip: HDB requires it before you may grant any Option to Purchase, and a mandatory waiting period of seven days applies between registration and granting an OTP. The Intent to Sell also surfaces useful information — your eligibility, the quota position for your block, and an estimate of the sale proceeds and CPF refunds you can expect.

The Intent to Sell stays valid for a limited period, so register it when you are genuinely ready to market the flat, not months in advance.

Step 3: Decide — agent or DIY

HDB’s process is genuinely manageable without an agent: the portal guides you through each submission, and the OTP is a standard form. If you are comfortable with paperwork, photography and negotiating face to face, a DIY sale saves the commission entirely.

That said, most sellers still engage a salesperson for the marketing muscle, pricing judgement and buyer-screening. If you go this route, verify the salesperson’s registration on the CEA public register, agree the commission and scope in writing (commissions are negotiable — there is no fixed rate), and never sign exclusivity terms you have not read carefully. A good agent earns their fee in pricing and negotiation; a poor one just posts your listing and waits.

Step 4: Price the flat with evidence, not hope

Pricing is where sales are won or lost. Start with recent resale transactions for your block and immediate neighbours — HDB publishes transaction data — and adjust for floor level, renovation condition, remaining lease and view. An asking price slightly above recent comparables leaves negotiation room; an aspirational price based on the best-ever transaction in the town mostly buys you months of silence.

Remember that your buyer’s financing is anchored to the flat’s market value as assessed after the deal is struck. If your agreed price exceeds that value, the difference — commonly called cash-over-valuation — must come from the buyer’s own cash, which shrinks the pool of buyers who can afford it. Our guide to valuation and COV explains how that mechanism affects your pricing strategy.

Step 5: Market, host viewings, negotiate

Good marketing is unglamorous but decisive: declutter, fix the small defects that photograph badly, shoot in daylight, and write a listing that leads with the facts buyers filter on — flat type, floor area, remaining lease, distance to the MRT. During viewings, be ready for the standard questions: why you are selling, your timeline, whether the price is negotiable, and what furniture or fittings stay.

Negotiation typically converges on price plus timing. Buyers juggling their own sale may ask for a longer completion or a specific handover date; flexibility here can be worth as much as a few thousand dollars on the headline price.

Step 6: Grant the Option to Purchase

When you shake hands on a price, the deal is formalised with HDB’s prescribed Option to Purchase — no other contract form is allowed for HDB resale. You grant the OTP in exchange for an option fee (a modest sum, capped by HDB — check current limits), and the buyer then has a 21-calendar-day option period to exercise it, usually after their valuation and loan approvals land. On exercising, the buyer pays a further deposit; option fee and deposit together are capped at a small total set by HDB.

Two rules to respect: you cannot grant an OTP within seven days of registering your Intent to Sell, and you must not grant overlapping options to different buyers. If the buyer lets the option lapse, you keep the option fee and are free to sell to someone else. The mechanics are worth understanding in detail before you sign — our full explainer on the Option to Purchase walks through them from both sides.

Step 7: The resale application and completion

Once the buyer exercises the OTP, both parties submit their portions of the resale application on the HDB Resale Portal, along with the required documents and fees. HDB reviews the application, and after acceptance both sides receive their approval and completion timeline — completion typically lands around eight weeks after acceptance, though your case may vary.

Before completion, expect an HDB inspection process and the usual administrative wrap-up: discharging your existing loan, CPF refunds flowing back to your account (your CPF used for the flat, plus accrued interest, returns to your CPF first — it is not cash in hand), and settling outstanding service and conservancy charges and property tax apportionment. On completion day, usually at HDB Hub or handled via your appointed conveyancer, ownership transfers, balances are paid out and you hand over the keys.

Plan your next move before you sell

The most common seller mistake is treating the sale in isolation. Where will you live between completion and your next home? Can you negotiate a short rent-back or align completion dates? If your next purchase is another subsidised flat or a new executive condominium, a resale levy may apply and reduce your future subsidy — the amounts depend on your flat type, so check HDB’s current figures early. And if the plan is private property, the financing and stamp-duty picture changes entirely; our HDB-to-condo upgrading guide covers how to sequence it.

The bottom line

Selling an HDB flat is a sequence, not a scramble: confirm MOP and eligibility, register the Intent to Sell, price on evidence, grant the standard OTP, then let the resale application run to completion roughly two months later. Get the order right, keep your paperwork tidy and plan your onward housing before you list. If you would like an experienced professional to price and market your flat, get matched with a licensed agent below.