How do I draft a contract for selling my UK-based business is a question that matters because the sale contract does far more than record the deal. It sets out what you are selling, what the buyer is paying, what risks stay with you, and what happens if something goes wrong after completion. If the contract is unclear, you can face disputes, delayed payments, or claims long after you thought the sale was finished.
In This Article
Start with the structure of the sale
Before you draft the contract, you need to be clear on the type of sale taking place. In most cases, this will either be a share sale or an asset sale. That distinction affects the wording of the agreement from the very start.
In a share sale, the buyer takes over the company itself. That usually means they take on its assets, contracts, and liabilities as part of the company. In an asset sale, the buyer only acquires selected parts of the business, such as stock, goodwill, equipment, intellectual property, or customer contracts. If you do not identify the structure properly at the start, the contract can become confused very quickly.
Agree the main deal terms before drafting
A contract should reflect an agreed deal, not create one from scratch. Before the full legal drafting starts, it helps to agree the core commercial terms with the buyer. That usually includes the price, what is included in the sale, the proposed timing, and any special arrangements such as staged payments or a handover period.
This does not have to be overly formal at the beginning, but both sides need to be aligned. If the basic deal points are still unclear, the drafting process often becomes longer, more expensive, and more difficult to negotiate.
Make it clear what is being sold
One of the biggest issues in business sale contracts is lack of clarity over what exactly is included. If you are selling shares, the contract should clearly identify the company and the shares being transferred. If you are selling assets, the agreement needs to spell out precisely which assets are included and which are excluded.
This matters because buyers and sellers do not always assume the same things. A buyer may think the website, client list, trading name, and telephone number are all part of the deal. A seller may have intended to keep some of those items out. If the contract does not deal with this properly, disputes can follow.
Set out the price and payment terms properly
The price is obviously central, but the way it is paid is just as important. Some sales complete with full payment on the day. Others involve instalments, deferred consideration, or earn-out clauses linked to future performance.
If payment is being made over time, the contract needs to explain when it is due, what conditions apply, and what happens if the buyer fails to pay. This is one of the most important parts of answering how I draft a contract for selling my UK-based business, because poor payment drafting can leave you chasing money after the deal is done.
Deal with warranties and indemnities carefully
Warranties and indemnities are often where much of the legal risk sits. Warranties are statements you make about the business, such as the accuracy of the accounts, the ownership of assets, or the absence of undisclosed disputes. If those statements turn out to be wrong, the buyer may have a claim against you.
Indemnities go further. They are usually promises to cover specific known risks, such as an unresolved tax issue or ongoing dispute. These clauses need close attention because they can leave you financially exposed after completion. They should never be treated as standard wording that can be skimmed over.
Include restrictions that are fair and workable
Most buyers will want some protection once the sale is completed. That often means restrictive covenants. These can stop you from setting up a competing business, approaching old customers, or trying to take key staff with you.
These clauses are common, but they still need to be reasonable. If they go too far in length, area, or scope, they may be difficult to enforce. At the same time, buyers usually expect meaningful protection, so they often become a negotiation point in the drafting process.
Cover what happens at completion
The contract should also deal clearly with completion. This is the point where ownership changes hands, payment is made, and the legal steps are carried out. If the completion process is vague, practical problems can arise very quickly.
A well-drafted contract will set out what must happen before completion, what documents need to be signed, and what each side must deliver on the day. That helps avoid delays and makes the handover smoother.
Think about what happens after the sale
Many business sales do not end cleanly on the day of completion. The buyer may want you to stay involved for a short period to help with handover, introductions, or transition support. If that is part of the deal, it needs to be written into the contract clearly.
This is often overlooked. One side may expect ongoing help, while the other believes their involvement ends immediately after payment. Clear drafting avoids that mismatch.
Avoid relying on generic templates
A common mistake is using an online template and assuming it will be enough. A template may give you a rough structure, but it rarely reflects the actual legal and commercial risks in your deal. Business sales in the UK can involve complex issues around tax, liabilities, staff, property, intellectual property, and ongoing obligations.
For many small business owners, this process feels stressful and hard to navigate, especially when the legal wording is dense and the stakes are high. That is exactly why clear, tailored legal support matters.
Get legal advice before you sign
If you are serious about selling, the safest route is to have a solicitor draft or review the contract. That does not just help with wording. It helps you structure the deal properly, spot hidden risk, and negotiate better protection for yourself.
A good contract does not simply record the sale. It protects your position before, during, and after completion.
Final thoughts
How do I draft a contract for selling my UK-based business is really a question about clarity and risk. You need a contract that says exactly what is being sold, how and when you will be paid, what promises are being made, and what responsibility stays with each side after the deal is done.
If the contract is well drafted, you can move on with confidence. If it is rushed or unclear, the sale can keep causing problems long after completion.
Your Next Step
Contact us today at 0121 268 3208 or via email at info@onyxsolicitors.com for a FREE consultation. Let us help you achieve the peace of mind that comes with having expert legal support on your side.





