Signed an Exclusive Agency to Sell Your Flat? Switching Agents Can Cost You Two Commissions

An owner is selling a flat and signs an agreement with an estate agent. The agent suggests: "why not make it exclusive — we'll advertise harder and move faster for you." The owner thinks: exclusive just means I can't use a second agent, right? Surely I can still sell it myself if I find a buyer on my own.

That assumption is half right and half wrong — and the wrong half is usually discovered only after a demand letter arrives. This article covers: what an exclusive agency agreement actually binds an owner to, whether selling directly yourself really is commission-free, why switching to a second agent is the trap most owners don't anticipate, and what to do before signing and before switching. Based on public guidance from the Community Legal Information Centre (CLIC) and the Estate Agents Authority.

If you want the mechanics of what an ordinary (non-exclusive) viewing form commits you to at signing, see Signed a Viewing Form in Hong Kong? What It Commits You To — this article is specifically about the word "exclusive" itself.

What signing exclusive actually means

Under section 45 of the Estate Agents Ordinance (Cap. 511), a licensed estate agent must sign a written estate agency agreement with an owner before providing services to sell a residential property — that's Form 3. It sets out the agent's duties, the commission arrangement, and the agreement's validity period.

The critical step is whether the agreement names that agent as the exclusive (or "sole") agent. Per CLIC's guidance, if an owner wants more than one agent helping sell the same flat, they should not name any single agent as exclusive in any agreement — otherwise, even if the sale is ultimately completed through a different agent, the owner still owes commission to the exclusive agent, meaning they end up paying two. In other words, "exclusive" isn't a neutral choice of arrangement — it's a clause with a direct effect on your wallet.

Do you owe anything extra for selling it yourself

This is usually the first thing owners want confirmed at signing, and it's worth answering clearly.

Per the Estate Agents Authority's own published commentary, an exclusive agency agreement means the owner authorises that agent company as the sole agent acting on their behalf during the validity period. If the owner sells the flat directly to a buyer during that period, with no estate agent of any kind involved, no commission is owed to the exclusive agent for that sale. This runs against many owners' intuition — "exclusive" mainly restricts the owner's freedom to use other agents, not the owner's freedom to complete a sale through their own direct effort.

That said, don't assume your own situation automatically qualifies. "I did it myself" and "there was an informal introduction with no formal agency fee" can blur together — for example, an introduction through a friend, a neighbour, or even an unlicensed colleague at the same agency who never formally signed anything can all raise disputes. If your situation isn't clearly one or the other, the safer move is to ask the exclusive agent directly, before completion, and get their confirmation in writing.

The real trap: switching to a second agent

If selling it yourself doesn't cost anything extra, where's the actual trap? The answer is: switching to a second agent.

CLIC illustrates this with an example — an owner who intends to use more than one agent to help sell a property should not name any single agent as exclusive in any of the agreements they sign. If they mistakenly do, and the sale is later completed through a different agent, the original exclusive agent still has the right to claim commission — meaning the owner ends up paying two.

In practice, this rarely happens through deliberate wrongdoing. It's usually one of these:

• Feeling the original agent is too slow, and impulsively engaging a second agent without checking that the original agreement says "exclusive"
• Assuming the exclusivity period has already expired when it hasn't
• Wanting to "switch" because the original agent's service was poor or unresponsive, without properly terminating the original exclusive agreement first

Whichever it is, once the second agent actually completes the sale, the first (exclusive) agent still has a contractual basis to claim. The real question the owner then has to answer isn't "did I personally help make this happen" — it's "was the original exclusive agreement actually terminated or expired by that point." For a related scenario — the same landlord and tenant renewing directly after meeting through an agent — see Renewed a Tenancy Directly? Do You Still Owe the Agent Commission; the underlying logic is the same: what matters is the wording of the agreement's validity period and trigger conditions, not market habit.

To see what actually decides a case like this once it reaches the Tribunal — particularly how the agreement's own wording and the timeline of events become the deciding factors — our agency commission case walks through a different fact pattern (a denial-of-signature dispute), but the same lesson applies: a properly signed prescribed-form agreement plus a clear timeline is the most practical thing you can bring to a dispute like this.

What to do before signing and before switching

Now that the actual scope of an exclusive agency clause is clear, here's what matters practically — at signing, and before you switch.

Before signing:

• Ask the agent directly whether exclusivity is necessary — if you want more than one agent helping, explicitly require the agreement to state it is not exclusive, and make sure the agent fills that in clearly
• Check exactly how long the validity period runs (typically a matter of months, depending on the specific document) and note the expiry date
• If you think you might complete a sale through friends, neighbours, or another informal channel, discuss this with the agent at signing and get written confirmation of how that scenario is handled

Before considering a second agent:

• Confirm the original exclusive agreement's validity period has actually ended — if it hasn't, engaging a second agent carries real double-commission risk
• If you want to terminate the exclusive agreement early, get legal advice on the proper termination steps (such as written notice) before acting — don't assume a verbal heads-up to the agent settles it
• Keep every written exchange (WhatsApp, email) with the original agent, in case you need to prove the termination date later

If you've already received a demand and want help reviewing the agreement and responding, our filing support service covers exactly that; estate agency disputes also sit within our agency commission case type.

Disputing the amount: EAA determination or the Tribunal

Once you've checked the agreement and the termination timeline, and a dispute genuinely remains, there are two different routes available.

Estate Agents Authority determination. Under section 49 of the Estate Agents Ordinance, where a licensed estate agent and client disagree on the amount, calculation method or payment terms of commission, both sides can agree to have the EAA determine the dispute. This applies to amounts up to HK$300,000, with a HK$500 submission fee per party and an arbitration fee of 10% of the disputed amount (minimum HK$2,000); neither side may be represented by a solicitor or barrister. Once registered with the District Court, a determination becomes enforceable as a District Court judgment. The catch: this route needs both sides to agree — the agent isn't obliged to accept it.

Small Claims Tribunal. If the agent won't agree to EAA determination, or you'd rather pursue an enforceable money claim directly, and the disputed amount is HK$75,000 or under, you can file at the Small Claims Tribunal. Filing fees run in four bands: $20 up to $5,000, $40 up to $25,000, $70 up to $50,000, and $120 up to $75,000 — the process generally doesn't require legal representation. For the actual filing steps, see How to Fill In a Small Claims Tribunal Claim Form.

Whichever side you're on, verifying identity is worth doing first — the Estate Agents Authority maintains a public licence search that anyone can use to confirm whether a person currently holds a valid licence. If you'd like broader background on how commission disputes are generally handled, see our estate agent commission dispute guide.