Selling a business can represent years of work, risk and reinvestment. This business asset disposal relief guide explains when a qualifying gain may be taxed at a lower Capital Gains Tax rate, and why the structure and timing of a sale deserve attention well before contracts are exchanged.
Business Asset Disposal Relief (BADR), previously known as Entrepreneurs’ Relief, is valuable but conditional. It is not applied automatically simply because you have owned a company for a long time or consider yourself self-employed. A missed condition can turn what looked like a relatively straightforward tax position into a significantly larger personal tax bill.
What Business Asset Disposal Relief does
BADR applies a reduced rate of Capital Gains Tax to qualifying gains when an individual disposes of all or part of a business, shares in a trading company, or certain business assets connected with a withdrawal from a business.
The relief is subject to a lifetime limit of £1 million of qualifying gains. For disposals on or after 6 April 2025, the BADR rate is 14%. The rate is due to increase to 18% for qualifying disposals made on or after 6 April 2026. These rates are still often preferable to the standard Capital Gains Tax rates that may otherwise apply, but the difference makes early planning especially worthwhile.
The relief applies to the gain, not the sale proceeds. If you sell shares for £800,000 but your allowable base cost and sale expenses total £200,000, the relevant gain is £600,000. Whether all of that gain qualifies will depend on the facts, the ownership period and the nature of the company’s activities.
The core conditions when selling company shares
For many owner-managed companies, the most common qualifying event is a sale of shares. Broadly, the conditions must be met for at least two years up to the date of disposal.
Your company must be a personal company
You must hold at least 5% of the company’s ordinary share capital and voting rights. The test is more detailed than a simple share percentage: you must also meet requirements relating to your entitlement to profits available for distribution and assets on a winding-up.
This matters where a company has different share classes, investor shares or family members holding shares. A share reorganisation that appears commercially sensible can affect BADR eligibility if it reduces rights below the required threshold. It should be reviewed before it is implemented, rather than after an offer to buy the business has arrived.
You must be an officer or employee
Throughout the two-year qualifying period, you must be an officer or employee of the company, or of a company in the same trading group. A director who has stepped down, or an owner who has moved into a purely consultancy-based arrangement, should take advice before a sale completes.
There is no requirement to work full-time. However, the role must be genuine and properly documented. Company records, payroll records and board minutes can all help support the position if HMRC asks questions later.
The company must be a trading company
The company must be a trading company, or the holding company of a trading group. In simple terms, trading should be the main activity. A business with surplus cash, investments or property is not automatically disqualified, but substantial non-trading activity or assets can create difficulty.
This is an area where the answer often depends on scale and purpose. Cash retained for a planned expansion, working capital or a known tax liability may be easier to support than funds left indefinitely in investment portfolios. Similarly, a trading company that starts earning significant rental or investment income needs a careful review before disposal.
A business asset disposal relief guide for sole traders and partners
BADR is not limited to limited company shareholders. A sole trader or partner may qualify when they dispose of all or part of their business, provided the business has been owned for at least two years before the disposal.
For a partnership, relief may be available on the disposal of the whole or part of an individual’s interest in the partnership. The calculation can be more involved where partnership assets are retained, revalued or transferred between partners, so the agreement and accounts should be considered alongside the tax position.
There are also rules for assets used in a business. For example, a business owner may dispose of a property used by their company or partnership when they reduce or cease their involvement in that business. This is commonly called an associated disposal. The conditions are stricter, and full relief is not guaranteed. Rent charged to the business, a reduction in ownership, or the asset being partly used for non-business purposes may restrict the amount available.
Share sale or asset sale: the commercial decision that changes the tax result
A buyer may prefer to buy the assets and trade of a company rather than its shares. This can limit the buyer’s exposure to historic liabilities. The seller, however, may prefer a share sale because BADR can potentially apply directly to the gain on their shares.
Where a company sells its assets, the company may pay Corporation Tax on any gains or trading profits. If the remaining funds are then extracted by the owners, there may be a further tax charge personally. BADR could potentially be relevant on a later winding-up or share disposal, but the overall result may be less favourable than a straightforward share sale.
That does not mean an asset sale is always wrong. A buyer may only proceed on that basis, or the transaction may include property, intellectual property or operations that make an asset deal commercially more appropriate. The key is to model the tax and cash outcome before agreeing the headline price. A higher price is not always a better deal if it creates a materially higher tax cost.
Timing can be as important as price
The disposal date is usually the contract date, not the date when the money reaches your bank account. If a contract is unconditional, the tax point can arise even where payment is deferred. Earn-outs, completion accounts and instalment arrangements should therefore be considered carefully.
Timing is also relevant because of the changing BADR rate. Bringing a qualifying disposal forward or delaying it may have a tax effect, but tax should not be the only driver. Owners should weigh the certainty of a buyer, due diligence progress, financing, personal plans and the risk of a deal falling through.
If a disposal is close to the end of the two-year qualifying period, completing too early can be costly. Equally, changing your employment status, shareholding or company activities before completion may interrupt qualification. These are practical issues that are often easier to manage months in advance.
Keep evidence while the business is running well
BADR claims are made through your Self Assessment tax return, normally by the first 31 January following the tax year after the tax year of disposal. The exact deadline depends on when the disposal occurs, and late action can jeopardise the claim.
Good records make a claim easier to support. Before a sale, it is sensible to retain:
- share certificates, Companies House filings and details of any share reorganisations;
- board minutes and payroll evidence supporting your director or employee role;
- accounts showing the company’s trading activities and the purpose of significant cash balances or investments;
- sale contracts, completion statements and professional costs connected with the disposal; and
- evidence of the original share cost, any loans converted into shares, and earlier capital transactions.
These documents also help establish the gain accurately. Legal fees, valuation costs and other directly related disposal expenses may be deductible when calculating the gain, while personal costs and general business expenditure will not necessarily qualify.
Plan before the buyer is at the table
A sale process can move quickly once interest is shown. By then, it may be too late to correct a shareholding issue or establish a two-year history that was not already in place. A review of the company structure, trading profile and likely exit route can identify problems while there is still room to act.
For family companies, this is particularly relevant where shares are held by spouses, adult children or key employees. Transfers and new share issues can have wider tax and commercial consequences, so they should never be treated as a last-minute route to relief.
A practical conversation before you market the business can give you a clearer view of the proceeds you are likely to keep, not just the price you hope to achieve. At RK & Co, we help owner-managers look beyond annual compliance and use the numbers to support better decisions at each stage of growth.
If selling, retiring or restructuring is on the horizon, start with the facts of your business and your own role within it. Early, practical advice gives you more choices, more confidence and a better chance of keeping the value you have worked hard to build.