Business asset disposal relief calculator, 2026/27

Selling all or part of a trading company you've worked in can qualify for a reduced 18% capital gains tax rate under Business Asset Disposal Relief. Enter your expected gain to see the tax due and how much of your lifetime limit remains.

The business asset disposal relief calculator runs on the rates and thresholds HMRC has published for the 2026/27 tax year, so the figures you see reflect the position your company is actually filing on rather than a historic set of bands. Change any input and the result recalculates immediately, with no sign-up and nothing sent anywhere.

If you are a director of a UK limited company, use it as a first look before a decision rather than as the decision itself. Business Asset Disposal Relief taxes qualifying gains at 18.0%, up to a lifetime limit of £1,000,000 across all claims made in your lifetime. Real company positions bring in other income, reliefs, group structures and prior year adjustments that a single page of inputs cannot see, which is why the workings are written out below under capital gains, iht & wealth. Read those, then check the numbers against your own accounts, and speak to us if anything looks materially different from what you expected.

Last reviewed 12 September 2026 for the 2026/27 tax year. Reviewed by Waqas Sagar, Member of ICAEW, Fellow of ACCA, Fellow of AAT.

Business asset disposal relief calculator

Your figures

Result, 2026/27

Gain taxed at BADR rate (18%)

£71,460 tax due
£400,000

Gain above lifetime limit (standard CGT)

£0 at 24.0%
£0

Total CGT due

£71,460

Remaining lifetime limit after this disposal

£600,000

Illustration only, figures are based on the rates you have selected and the information entered. Please check your own position with us before acting.

Estimates for the 2026/27 tax year using published GOV.UK rates. Switch between 2026/27 and 2025/26 above.

How this is calculated

Business Asset Disposal Relief (formerly Entrepreneurs' Relief) reduces the capital gains tax rate on qualifying disposals of a trading business or shares in a trading company to 18.0%, compared with the standard higher rate of 24.0%. The relief applies to gains up to a cumulative lifetime limit of £1,000,000, tracked across every BADR claim you have ever made, not just the current disposal.

The annual exempt amount of £3,000 is deducted from the gain before the BADR rate is applied, and any gain in excess of your remaining lifetime limit is taxed at the standard rate instead. Where you have gains that qualify for BADR and gains that do not in the same tax year, the exempt amount and basic rate band are typically allocated in the way that minimises your overall tax first.

To qualify, you generally need to have held at least 5% of the ordinary share capital and voting rights, been entitled to at least 5% of profits and assets on a winding up, and been an officer or employee of the company throughout a two-year qualifying period ending with the disposal.

Common qualifying disposals

The relief covers selling all or part of a sole trader or partnership business, disposing of shares in your personal trading company, and associated disposals of assets used by the business when you retire or reduce your involvement.

It also applies to trustees disposing of business assets on behalf of a beneficiary who meets the personal qualifying conditions, though the rules here are more technical and worth checking individually.

Where BADR often trips people up

The lifetime limit is cumulative, so directors who have used BADR on an earlier business sale may find they have little or none of the £1 million limit left for a subsequent one, which can significantly change the economics of a later sale.

Falling below the 5% shareholding threshold, for example through dilution from new investment rounds, before the two-year qualifying period is complete can disqualify the relief entirely, so timing of fundraising relative to an eventual exit needs care.

What this means for your company

Treat the result as a planning figure for the 2026/27 tax year. If it changes what you were about to do, take a director's salary, a dividend, a large asset purchase or a filing decision, check it against your own accounts first. We can review the position with you and confirm the tax treatment before you commit.

Frequently asked questions

Is the BADR lifetime limit per person or per business?

It is per individual, cumulative across every qualifying disposal you make in your lifetime, not a separate limit for each business you have owned or sold.

Do I need to be a full-time director to qualify?

No, but you do need to be an officer or employee of the company (which can include a part-time director role) and meet the 5% shareholding and economic interest tests throughout the two-year qualifying period.

What if my shareholding has been diluted below 5%?

There is a specific relief allowing you to elect to be treated as if you had disposed of and reacquired your shares immediately before the dilution, which can preserve BADR eligibility on the gain accrued up to that point; this needs an election within strict time limits.

Does BADR apply to a company winding up through an MVL?

Yes, distributions made on a members' voluntary liquidation can qualify for BADR if the usual conditions are met, which is one reason MVLs are commonly used to extract retained profits when closing a company.

These calculators are provided for general illustration and do not constitute tax or financial advice. Results depend on the accuracy and completeness of the information entered, and on circumstances this tool cannot capture, including residence, other income, reliefs, group structures and prior-year positions. Rates and thresholds are those published by HMRC for the tax year selected and may change. You should not act, or refrain from acting, on the basis of these figures alone. For advice specific to your company, book a free consultation.

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