The Real Cost of Selling Your HDB in 2026: Agent Fees, Legal Costs and Hidden Deductions

Expert takeaway: The headline number when you sell your HDB flat is the resale price, but the figure that actually lands in your bank is far smaller once agent commission, legal fees, CPF refunds and any resale levy are stripped out. In 2026, sellers who plan for these deductions in advance avoid the nasty surprise of a completion statement that reads nothing like the price they celebrated.

What Selling Your HDB Flat Actually Costs in 2026

Ask most owners what it costs to sell an HDB flat and they will name one number: the agent's commission. But the real cost of selling your HDB in 2026 is a stack of separate line items, some paid in cash, some netted off your sale proceeds, and some that never leave the property at all because they flow back into your CPF Ordinary Account.

Understanding the difference between a true out-of-pocket cost and a CPF refund is the single most important thing a seller can grasp. A CPF refund is still your money; it simply cannot be spent freely until you meet the relevant age and retirement conditions. An agent fee, by contrast, is gone for good. Confusing the two is why so many sellers feel poorer than the maths says they should be.

Agent Commission: Negotiable, Not Fixed

There is no government-mandated rate for property agents in Singapore. The Council for Estate Agencies does not fix, prescribe or cap commission, and every rate is negotiable and must be documented in a Prescribed Estate Agency Agreement before any marketing begins. What exists instead are stable market norms.

In 2026, common market practice sees HDB resale sellers pay around 1% to 2% of the selling price, with 2% still the traditional full-service benchmark and a growing group of fixed-fee and 1% platforms offering a genuine alternative. On top of the agreed rate, GST-registered agencies charge 9% GST. On a S$600,000 flat, the gap between 1% and 2% is S$6,000, which is real money that goes straight to your final proceeds.

All figures above exclude 9% GST on the commission.

The trade-off is worth weighing honestly rather than picking on price alone. Higher-commission agencies argue their marketing reach and negotiation net a higher final price that more than covers the fee gap. For a well-located, easy-to-sell flat in a mature estate such as Bishan, Tampines or Queenstown, the fixed-fee route often wins because demand does much of the work. For a harder sell, a high-floor executive flat or a unit constrained by the ethnic quota, a stronger agent may earn their keep. Before appointing anyone, verify the agent on the CEA Public Register and read HDB's own guidance so you understand the selling eligibility rules yourself. An informed seller is a harder seller to mislead. If you are also weighing whether to hold firm on price, our guide on pricing your HDB in a softening market pairs well with this cost breakdown.

Legal and Conveyancing Fees for HDB Sellers

Every HDB sale requires conveyancing, the legal transfer of ownership to the buyer. As a seller you have two broad routes. If you have no outstanding loan or your loan is from HDB, you may appoint HDB's own solicitors, generally the most cost-effective option. If your loan is from a bank, you must engage a private lawyer to act on the sale and loan redemption.

Sellers with a bank mortgage should budget toward the middle of that private range once disbursements are added, and remember that GST at 9% applies to the professional fee but not to government disbursements. There is also a modest HDB resale application administrative fee: S$80 for 3-room and larger flats, and S$40 for 1- and 2-room flats, payable by both buyer and seller. It is small, but it is a genuine cash cost.

The Deductions Sellers Consistently Forget

This is where completion statements go sideways. Three items catch sellers off guard, and none of them are the agent or the lawyer.

CPF refund with accrued interest

If you used CPF to buy your flat, that principal plus the accrued interest you would have earned had the money stayed in your account must be refunded to your CPF Ordinary Account on completion. This is not a fee, but it dramatically reduces the cash that reaches your bank. On flats bought a decade or more ago, accrued interest alone can run into tens of thousands of dollars. We break the mechanics down fully in our piece on the CPF accrued interest shock, and in the worst case a low sale price can trigger a negative sale where the CPF refund exceeds the proceeds.

The HDB resale levy

If you are selling a subsidised flat and intend to buy a second subsidised flat or an Executive Condominium from a developer, a resale levy applies. It is a deliberate policy cost designed to reduce the subsidy on your second bite. Buyers moving to a resale flat or fully private property in the open market are not caught by it, but upgraders should confirm their exposure on the HDB EC eligibility and CPF housing grant pages before committing.

Outstanding loan redemption

Any remaining mortgage is settled from the sale proceeds at completion. This is your own debt rather than a fee, but it must be modelled because it determines what is left after CPF is refunded and the loan is cleared.

One piece of good news: Seller's Stamp Duty rarely bites HDB sellers. By the time a flat clears its five-year Minimum Occupation Period, the SSD holding period has already passed, so SSD is typically not payable. And Singapore imposes no capital gains tax on individuals who are not trading in property, so any profit on your flat is not taxed.

A Worked Example: Selling a S$650,000 Flat

Consider a couple selling a 4-room flat in Sengkang for S$650,000. They used a full-service agent at 2%, redeemed a bank loan, and used HDB solicitors is not available to them because of the bank loan, so they engage a private firm.

The headline was S$650,000. The cash in the bank is under S$233,000, with a further S$220,000 sitting in CPF. Had the couple negotiated a 1% commission, they would have kept roughly S$7,085 more in cash. To model your own numbers, work through our HDB sales proceeds guide and cross-check financing implications if you are upgrading.

Opportunities and Risks for HDB Sellers in 2026

On the opportunity side, the rise of fixed-fee and 1% platforms gives sellers of straightforward flats a legitimate way to keep several thousand dollars that would once have vanished into a standard 2% commission. No capital gains tax and a resale market with steady heartland demand mean well-priced flats in mature estates still move.

The risks are just as real. Cutting commission on a hard-to-sell flat can leave it languishing, and a stale listing eventually forces a price cut that dwarfs any fee saving, as we detail in our analysis of stalled HDB listings. The bigger risk is misreading CPF refunds and the resale levy, then over-committing to a next purchase on cash you do not actually have. Upgraders in particular should sequence carefully, weighing the sell-first versus buy-first decision before signing anything. Because ABSD, LTV and financing timing interact, revisit the TDSR and LTV fundamentals and understand your stamp duty obligations on the buy side before you sell.

Selling an HDB flat well is less about chasing the highest headline price and more about knowing, to the dollar, what actually reaches you after every deduction. If you would like an independent, numbers-first read on your own flat, including a realistic proceeds estimate and whether a fixed-fee or full-service route serves you better, reach out to the team at PropertyNet.SG. We will walk through your figures with you, no pressure and no sales pitch, so you can make your next move with clear eyes.