Broker exclusivity clauses — what to watch for
Four real clauses from UK business broker contracts, annotated. Which to sign as drafted, which to negotiate, and which to walk away from — plus the target position and the exact wording you should ask for in writing.
By Chris at Sell LtdLast updated Four clauses, annotated
"The Seller agrees that during the term of this Agreement and for a period of twenty-four (24) months thereafter, the Seller shall not appoint any other broker, agent, or intermediary to market or sell the Business."
"For a period of twenty-four (24) months following termination, the Broker shall be entitled to the full Success Fee in the event of a sale to any party, whether or not that party was introduced by the Broker."
"The Seller shall not directly or indirectly discuss, market or advertise the Business for sale on any platform, marketplace or with any party without the prior written consent of the Broker."
"The Seller agrees not to appoint another broker or intermediary during the term. Following termination, the Broker shall be entitled to the Success Fee only in respect of a sale completed within six (6) months to a buyer named on the written Introduction List annexed to this Agreement."
The four edits to insist on, in writing
- Exclusivity length capped at 12 months (six for smaller mandates).
- Tail capped at 6 months post-termination, limited to a written 'Introduction List' annexed to the agreement.
- 'Marketing' narrowed to 'engagement of a competing broker or intermediary' — not private conversations or general market activity.
- Mutual termination for material breach with 30 days' written notice — you need a genuine off-ramp if the broker underperforms.
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- How to fire a business broker (and what it costs)Notice periods, tail fees and the letter you actually need
- Complaints against UK business brokers — your optionsTrade body → ombudsman → small claims — the real routes
Frequently asked questions
What is a broker exclusivity clause?
A clause in a UK business broker contract that prevents the seller from engaging another broker, marketplace or intermediary during the mandate — and often for a 'tail' period after termination. Standard drafting locks the seller in for 6–24 months plus a 12–24 month tail.
Are exclusivity clauses enforceable?
Generally yes, provided they're reasonable in scope and duration. UK courts have upheld broker exclusivity where the broker has done meaningful work. Broad drafting catching all introductions or all discussions is more likely to be reduced in a dispute.
What's a reasonable exclusivity length?
Six to twelve months for the mandate itself. Any tail should be capped at six months post-termination and limited to a written list of named buyer introductions the broker actively worked. Twenty-four month tails on 'any buyer' are aggressive and always negotiable.
Can I list on Sell Ltd if I already have a broker?
Only if your broker contract allows. Most don't — the exclusivity clause is usually drafted broadly enough to catch marketplaces and platforms. Terminate the existing mandate first (see our guide on firing a broker), then list on Sell Ltd.
What if I signed a bad exclusivity clause?
Options: (1) negotiate a mutual termination — brokers often accept if the mandate is going nowhere, (2) let the exclusivity period run out, (3) challenge the clause in a dispute if drafting is genuinely unreasonable. Get a corporate lawyer's view before doing anything.
What's a tail fee?
A clause entitling the broker to their full success fee if you sell to any buyer introduced during the mandate — even after termination. Tail periods of 12–24 months are common. Always cap to a written list of named introductions.
Should I ever agree to no tail at all?
Rarely realistic — brokers want protection for genuine introductions. But six months on a named list is a fair position, and you should walk away from any broker who insists on more without justification.
How do I negotiate exclusivity down?
Ask directly, in writing, and be specific: 'I need exclusivity capped at 12 months and the tail limited to 6 months on a written introduction list.' Brokers keen to win the mandate will accept; brokers who refuse are telling you their business model relies on the broad clause.
Does Sell Ltd require exclusivity?
No. Sell Ltd has no exclusivity clause. You can list, pause, unlist or engage another adviser at any time. The only fee is 1.5% on completion — no lock-in, no tail.
What if my broker introduced a buyer I already knew?
Standard clauses catch 'any introduction' — the broker gets paid even if you'd already met the buyer. Always insist the exclusivity clause excludes pre-existing relationships, and disclose those relationships in writing before signing.
Is exclusivity worse in the UK than overseas?
UK broker drafting is more aggressive than the US or Australian equivalents, largely because the sector is unregulated and voluntary trade codes carry little enforcement weight. Reading every clause matters more here.
What clauses should I always negotiate?
Four minimum: (1) exclusivity length capped at 12 months, (2) tail capped at 6 months on a named written list, (3) marketing definition narrowed to 'competing brokers', (4) mutual termination for material breach with 30 days' notice.
Sell Ltd has no exclusivity clause
Pause, unlist or move at any time. No tail, no lock-in.