A letter of intent when selling a business is a preliminary written agreement that sets out the basic terms of a proposed business sale before a legally binding contract is signed. In the UK, this document is also called “heads of terms.” An ICAEW Chartered Accountant typically reviews the financial elements before the seller signs.
What Is a Letter of Intent When Selling a Business?
A letter of intent (LOI) is a document that outlines the principal terms of a business acquisition before the parties commit to a binding sale agreement. The buyer usually drafts the LOI after an initial offer but before due diligence begins. In UK business transactions, the equivalent term is “heads of terms.”
The LOI covers 6 to 10 key areas including purchase price, payment structure, assets included, exclusivity period, confidentiality terms, and a target completion date. Most clauses in an LOI are not legally binding. The document is marked “subject to contract” to signal that the formal Sale and Purchase Agreement (SPA) will follow.
Four clauses are typically binding in a UK LOI:
- Confidentiality. Both parties agree not to disclose deal terms publicly.
- Exclusivity. The seller cannot negotiate with other buyers for a set period, usually 30 to 90 days.
- Costs. Each party bears its own professional fees regardless of whether the deal completes.
- Governing law. Specifies that English and Welsh law or Scottish law applies.
The LOI does not transfer ownership of the business. Ownership transfers only when the SPA completes and Companies House receives the relevant filings.
Why Does This Matter for Your UK Business?
A letter of intent matters because it establishes the framework for the entire sale process and locks both parties into a structured negotiation. Without an LOI, buyers and sellers often waste months on deals that collapse over fundamental disagreements on price or structure.
For UK small business owners, the LOI has 3 specific implications.
Tax planning begins at LOI stage. The structure of the deal determines the seller’s tax liability. A share sale triggers Capital Gains Tax at the individual level, with Business Asset Disposal Relief applying at 10% on qualifying gains up to the £1 million lifetime limit. An asset sale may trigger Corporation Tax inside the company plus additional tax on extracting the proceeds. HMRC treats share sales and asset sales differently. Sellers should confirm the optimal structure before signing the LOI.
Due diligence scope is defined. The LOI specifies which records the buyer can examine. Sellers need clean Company Accounts and current Bookkeeping Services records ready before the buyer’s accountants begin their review.
Exclusivity locks the seller in. Once the LOI is signed, the seller typically cannot accept a competing offer for 30 to 90 days. Sellers should negotiate this period carefully. A 60-day exclusivity window is standard for businesses valued under £5 million.
Aqua Accounting, an ICAEW Registered Member Firm based in Newcastle upon Tyne, has 13+ years of experience serving North East businesses through every stage of the sale process.
What Are the Key Rules and Requirements for a Letter of Intent?
A UK letter of intent follows 7 standard requirements. These requirements apply whether the business is a limited company, a partnership, or a sole trader being acquired.
- Written format. An LOI must be in writing. Verbal agreements on price or terms carry no weight in a UK business sale.
- “Subject to contract” marking. This phrase signals that the LOI is not the final binding agreement. Without it, a court may treat certain commercial terms as legally enforceable.
- Purchase price and deal structure. The LOI states the offer amount and whether the deal is a share purchase, an asset purchase, or a merger. The payment structure is also specified: lump sum, instalments, or earn-out.
- Assets and liabilities listed. The LOI identifies which assets transfer to the buyer. This includes intellectual property, property leases, equipment, customer contracts, and goodwill. Assumed liabilities such as bank loans or outstanding Corporation Tax obligations are also itemised.
- Conditions precedent. These are conditions that must be met before completion. Common conditions include satisfactory due diligence, landlord consent for lease transfer, and regulatory approvals.
- Timeline. The LOI sets target dates for due diligence completion, SPA signing, and completion. A typical UK business sale takes 3 to 6 months from LOI to completion.
- Professional review. UK solicitors draft and review the LOI’s legal terms. Accountants review the financial terms. Sellers should not sign an LOI without both professional reviews.
The table below summarises the standard LOI structure for a UK business sale.
| LOI Section | Typical Content | Legally Binding? |
|---|---|---|
| Purchase price | Offer amount and payment structure | No |
| Assets included | IP, property, equipment, contracts, goodwill | No |
| Exclusivity period | 30 to 90 day lock-out agreement | Yes |
| Confidentiality clause | Non-disclosure of deal terms and data | Yes |
| Costs | Each party bears own professional fees | Yes |
| Conditions precedent | Due diligence, consents, regulatory approvals | No |
| Governing law | English and Welsh law or Scottish law | Yes |
Common Questions Answered
Is a Letter of Intent Legally Binding in the UK?
A letter of intent is not legally binding in its entirety, but specific clauses are binding. The binding clauses are confidentiality, exclusivity, costs, and governing law. All other commercial terms such as purchase price and asset lists are non-binding until the SPA is signed. The document is marked “subject to contract” to make this distinction clear. A UK solicitor should confirm which clauses are enforceable before the seller signs.
How Long Is a Typical Exclusivity Period?
A typical UK exclusivity period is 30 to 90 days, with 60 days being the most common for businesses valued under £5 million. The exclusivity clause prevents the seller from accepting competing offers during the negotiation window. Sellers should negotiate a shorter period if the buyer is slow to commence due diligence.
What Happens After the Letter of Intent Is Signed?
After the LOI is signed, the buyer begins formal due diligence and solicitors draft the Sale and Purchase Agreement. The seller provides financial records, Tax Returns, employment contracts, and property documents for the buyer’s review. Completion occurs 3 to 6 months after LOI signature if all conditions precedent are met. Post-completion filings with Companies House and HMRC follow.
Can a Seller Back Out After Signing the LOI?
A seller can withdraw from the non-binding commercial terms at any time before the SPA is signed. However, the seller cannot breach the binding exclusivity clause by accepting a competing offer during the lock-out period. If the seller does accept a competing offer, the original buyer may seek damages for breach of contract.
How Can an Accountant Help with a Letter of Intent?
An ICAEW Chartered Accountant supports sellers in 5 specific areas during the LOI stage of a business sale.
Valuation verification. Accountants confirm whether the offer price reflects the business’s true value. This includes reviewing trading accounts, normalising earnings, and identifying one-off costs that inflate or deflate reported profit figures.
Tax structure analysis. The deal structure determines the seller’s tax liability. A share sale qualifies for Business Asset Disposal Relief at 10% on gains up to £1 million. An asset sale may trigger Corporation Tax inside the company plus Capital Gains Tax on extraction. Accountants calculate both scenarios before the LOI is signed so the seller negotiates from an informed position.
Due diligence preparation. Buyers request 2 to 3 years of financial records during due diligence. Accountants prepare Company Accounts, reconcile Bookkeeping Services records, and confirm that VAT Services returns are current and accurate.
Earn-out negotiation. If the deal includes an earn-out, the seller receives part of the payment based on future business performance. Accountants define the performance metrics, set the measurement periods, and ensure the accounting basis for calculating earn-out payments is locked into the LOI before signature.
Post-sale compliance. After completion, sellers must file final Corporation Tax returns, update Companies House records, and manage sale proceeds. Sellers starting a new venture may need Limited Company Formations support to set up the next entity.
Aqua Accounting provides Business Accounting Advisory services to business owners across Newcastle and the wider North East. As an ICAEW Registered Member Firm with 13+ years of experience serving North East businesses, the team guides sellers through every financial stage of a business sale, from LOI review to post-completion filings.
Contact Aqua Accounting to discuss your business sale with a qualified ICAEW Chartered Accountant based in Newcastle upon Tyne.
Disclaimer:
The information provided in this blog is for general informational purposes only and does not constitute professional advice. While every effort is made to ensure accuracy, Aqua Accounting accepts no responsibility for any actions taken based on this content. You should seek professional advice tailored to your individual circumstances.
Omar Ahmed is an ICAEW Chartered Accountant and the Director of Aqua Accounting, a UK-based accountancy practice providing expert accounting and tax services to individuals, sole traders, and small to medium-sized businesses. As a trusted accountant in Newcastle, he offers expertise in annual accounts, self-assessment tax returns, company accounts, VAT, payroll, bookkeeping, and company formation.
With a strong focus on delivering clear and practical financial advice, Omar helps clients stay compliant while improving their understanding of their finances. Through Aqua Accounting, he works closely with business owners to simplify accounting processes, meet tax obligations, and support informed financial decision-making.