Business Asset Disposal Relief: The Tax Break That Could Save You Millions on Exit

The 30-Second Definition

Business Asset Disposal Relief (BADR) — formerly known as Entrepreneurs' Relief until its renaming in the April 2020 Finance Act — is a UK Capital Gains Tax relief that reduces the rate of CGT payable on qualifying gains from the disposal of a business or its shares. It applies to a lifetime limit of £1 million of qualifying gains per individual. From 6 April 2026, the BADR rate is 18 percent — having risen from 10 percent (pre April 2025) to 14 percent (2025/26 tax year) following the Autumn 2024 Budget. 

Against the standard CGT rate of 24 percent for higher rate taxpayers, BADR continues to deliver a meaningful saving on qualifying gains up to the lifetime limit. It remains the single most valuable tax relief available to a business owner on exit and the one most frequently lost through inadequate planning.

Why BADR Matters in the Context of a Transaction

The BADR rate has changed materially since the Autumn 2024 Budget and continues to evolve. Prior to 6 April 2025, BADR delivered a 10 percent CGT rate against a standard higher rate of 20 percent — a saving of 10 percentage points. From 6 April 2025, the BADR rate rose to 14 percent while the standard higher rate rose to 24 percent. From 6 April 2026, BADR rises again to 18 percent, still against a standard higher rate of 24 percent. 

On a £1 million qualifying gain in the 2026/27 tax year, BADR delivers a saving of £60,000 compared to the standard rate — less dramatic than the relief's historic 10 percent headline, but still material.

The relief is not automatic. It must be claimed on the seller's Self Assessment tax return for the year in which the disposal occurs, and the qualifying conditions must have been met continuously for a minimum period before the transaction completes. A founder who discovers on the day of exchange that their shareholding does not qualify — because of a share reorganisation three years earlier, a change in employment status, or an error in the articles of association — cannot retrospectively restructure to recover eligibility.

The Qualifying Conditions

BADR is available on gains arising from the disposal of shares in a trading company or the holding company of a trading group, provided four conditions have been met throughout the two-year period immediately preceding the disposal.

The company must be a qualifying trading company: it must be carrying on trading activities and must not be engaged wholly or mainly in non-trading activities such as investment holding, property letting, or financial activities. Businesses with significant investment property on the balance sheet — a common feature in owner-managed companies where the trading business and the property it occupies are held within the same legal entity — may fail this test if the investment activities represent more than 20 percent of the company's total activities by reference to assets, income, or management time.

The seller must be an employee or officer of the company throughout the two-year qualifying period. A founder who resigned as a director eighteen months before completion — perhaps to step back from day-to-day operations — will fail this condition unless they retained a formal officer role, however nominal, until the disposal date. This is one of the most common inadvertent disqualifications in mid-market transactions.

The seller must hold at least 5 percent of the ordinary share capital of the company and at least 5 percent of the voting rights throughout the two-year period. In businesses that have undergone a funding round, a management buyout, or a share reorganisation, the founder's percentage holding may have been diluted below the 5 percent threshold — potentially disqualifying them from BADR on the diluted shares even if they held a qualifying stake at an earlier date. 

HMRC introduced an anti-dilution provision in 2019 allowing founders to elect to crystallise a BADR gain at the point of dilution below 5 percent, but this election must be made within the relevant tax year and cannot be made retrospectively.

The seller's 5 percent holding must also entitle them to at least 5 percent of the distributable profits and 5 percent of the assets available on a winding up. This condition catches businesses where multiple share classes have been created — alphabet shares, growth shares, or preference shares — that result in a founder holding 5 percent of the ordinary shares by number but less than 5 percent of the economic entitlement. The share structure must be reviewed against this test by a tax advisor well in advance of any transaction.

Common Disqualification Traps

The most frequently encountered BADR disqualification scenarios in mid-market UK transactions fall into four categories.

Share class reorganisations that inadvertently dilute economic entitlement below 5 percent — often introduced for tax planning purposes or to accommodate an incoming investor — without triggering the protective crystallisation election at the time of the change.

Resignation from directorship or employment before the two-year qualifying period is complete. Founders who hand over operational control to a professional CEO or MD and formally resign their directorship as part of that transition must take independent tax advice on the BADR implications before the resignation takes effect.

Investment holding company structures where a significant proportion of the group's assets are held in a non-trading entity — property, cash, or financial investments — that causes the trading company test to be failed at group level.

Share option exercises in the period immediately before completion that result in dilution of existing shareholders below the 5 percent threshold, without the affected shareholders having made a protective crystallisation election in advance.

Planning Actions Before Going to Market

The window for BADR planning is the twelve to twenty-four months before the anticipated transaction date — not the six weeks between signing the LOI and executing the SPA. The specific actions that protect BADR eligibility include reviewing the share register and articles of association to confirm that every selling shareholder meets the 5 percent economic entitlement test under their specific share class, confirming that every selling shareholder who intends to claim BADR holds a formal director or employee role and will do so until completion, obtaining a formal BADR eligibility opinion from a specialist tax advisor before going to market, and addressing any investment property or non-trading asset position that could cause the trading company test to be failed at group level before the two-year qualifying period runs.

Given the ongoing changes to BADR rates introduced by the Autumn 2024 Budget and the possibility of further Budget adjustments, founders planning an exit should obtain current specialist tax advice rather than relying on historic rate assumptions. The qualifying conditions have remained stable; the rates have not.

This dictionary is for information purposes only and does not constitute legal, tax, or financial advice. You should always seek independent professional advice before taking action in connection with a business transaction.