Share Purchase Agreement in the UK: Template, Clauses and Local Law (2026)

What is a share purchase agreement in the UK? A share purchase agreement (SPA) in the UK is the contract under which a buyer purchases shares in a UK company from existing shareholders. Because the buyer takes the company as it stands, with all its history, contracts and liabilities, the SPA works hard to shift and limit risk through warranties, a disclosure letter, a tax covenant and limitations. It is the central document when buying a private limited company. A share sale is different from a business and asset sale, where the buyer takes chosen assets and liabilities and leaves the company behind. In a share sale the legal entity does not change; its ownership does. Which route you use changes the document, the tax and the consents, so decide structure first. This article is general guidance, not legal advice. UK company, tax and stamp rules have detail and change, so have qualified UK counsel review any SPA before you rely on it. Last verified October 2026. ## The UK legal frame A UK share purchase sits inside several bodies of law: - Companies Act 2006 governs the company, its shares and the registration of transfers in the register of members.

• Stamp duty applies to the transfer. The standard rate is 0.5% of the consideration, rounded up to the nearest £5. For consideration of £1,000 or less, no stamp duty applies if the instrument contains a certificate of value.
• Stamp Duty Reserve Tax (SDRT), also 0.5%, can arise on an agreement to transfer, but it is cancelled when stamp duty is paid on the executed transfer within the time limit.
• Tax law drives capital gains for the seller and the buyer's protection through the tax covenant. Shares are transferred using a stock transfer form. The buyer sends it to HMRC for stamping within 30 days of signing where duty is due, and a company will not normally register the transfer until it is properly stamped. Stamp duty is generally not payable on new share issues, on gifts, or on transfers of shares traded on a recognised growth market such as AIM. <!-- [VERIFY] current stamp duty rate and any reform, HMRC guidance, as of 2026 --> ## UK share purchase agreement template skeleton This is a skeleton of the main clauses, not a complete contract. ``` SHARE PURCHASE AGREEMENT This Agreement is dated [DATE] and made between: (1) [SELLER(S)] (the "Seller"); and (2) [BUYER] (the "Buyer"). 1. DEFINITIONS AND INTERPRETATION "Sale Shares" means [N] [ordinary] shares of [GBP X] each, being [X]% of the Company. [Define Completion, Warranties, Disclosure Letter, etc.] 2. SALE AND PURCHASE The Seller sells and the Buyer buys the Sale Shares with full title guarantee, free from encumbrances, with all rights attaching. 3. CONSIDERATION The price is GBP [AMOUNT], payable [on Completion / with a retention of GBP [amount] / subject to a completion-accounts or locked-box adjustment]. 4. CONDITIONS (if any) Completion is conditional on [regulatory or third-party consents, no material adverse change], with a long-stop date of [DATE]. 5. COMPLETION At Completion the Seller delivers executed stock transfer forms, share certificates, board resignations and appointments; the Buyer pays the price; the board approves registration of the transfer. 6. WARRANTIES The Seller gives the warranties in Schedule [X] (title, accounts, tax, litigation, contracts, employees, property, intellectual property, compliance), subject to the matters fairly disclosed in the Disclosure Letter. 7. LIMITATIONS ON LIABILITY The Seller's liability for the Warranties is limited by a cap, a de minimis per claim, an aggregate threshold, and time limits (longer for tax), set out in Schedule [X]. 8. TAX COVENANT The Seller covenants to pay the Buyer for pre-Completion tax liabilities of the Company, on the terms of Schedule [X]. 9. RESTRICTIVE COVENANTS The Seller will not compete with or solicit from the Company for [N] years within [area], so far as reasonable and enforceable. 10. GOVERNING LAW AND JURISDICTION Governed by the laws of [England and Wales]; the courts of [England and Wales] have [exclusive] jurisdiction. Signed Seller: ______ Signed Buyer: ______

- **Warranties and the disclosure letter (clause 6).** The buyer wants broad warranties about the company; the seller limits them and discloses against them in the disclosure letter, because fairly disclosed matters cannot later found a warranty claim. The disclosure exercise is central to a UK deal.
- **Limitations (clause 7).** The seller wants a low cap, a real de minimis and aggregate threshold and short time limits; the buyer wants a higher cap for title and tax and longer periods for tax claims. Warranty and indemnity insurance is often used, especially where management sells.
- **Tax covenant (clause 8).** Separate from the tax warranties, this is a pound-for-pound promise to pay the buyer for pre-completion tax liabilities. Sellers negotiate its exclusions hard; buyers rely on it heavily.
- **Restrictive covenants (clause 9).** Keep non-compete and non-solicit terms reasonable in scope, time and area, because English courts will not enforce restraints wider than needed to protect legitimate interests. ## Common mistakes to avoid - Not settling share sale vs asset sale first, which changes liabilities, tax and consents.
- Forgetting the stock transfer form and HMRC stamping, so the transfer is not registered.
- A weak disclosure letter, leaving the seller exposed to warranty claims.
- Confusing the tax warranties with the tax covenant; you usually want both.
- Overbroad restrictive covenants that a court will not enforce. ## Where a contract workspace helps A template gets you a sound UK SPA skeleton. The ongoing work is everything after: keeping warranties, limitations and the tax covenant consistent across the SPA, the disclosure letter and the ancillary documents, tracking conditions, the long-stop date and stamping deadlines, watching retention release and claim time limits, and finding the right version in a later dispute. The drafting, review and tracking of a UK share purchase can also sit in a single AI workspace shaped around how your company does deals. It can begin from your SPA template, treat the agreement as linked clauses so a change to the cap flows through the limitations schedule, surface deadlines such as the stamping window and claim periods as dated reminders, and hold every version in one place. [Adira](https://adiralaw.com) is one example of a tool built this way around a single workspace. The template alone is enough to start a fair SPA; a workspace simply joins drafting, review and tracking into one job.