Business Asset Disposal Relief explained

Introduction

Most business owners don’t start a company thinking about Capital Gains Tax. You start because you want freedom, control, and the chance to build something worthwhile.

Then, one day, your exit conversation arrives; a buyer approaches, a partner wants to step back, you decide it’s time to sell, retire, or move on to the next chapter. And suddenly one question becomes very real, very quickly:

How much of the sale proceeds will I actually keep?

Business Asset Disposal Relief (BADR) sits right in the middle of that question. It can reduce the Capital Gains Tax (CGT) rate on qualifying gains, but it is not automatic, and it is not something you fix in the final week. The Relief rewards genuine ownership and involvement over time. That “over time” part is the bit that catches people out.

Plain-English tip: an exit is rarely just a deal, quickly completed and done. It is a project with dates, conditions, and paperwork. BADR is one of the key conditions worth protecting early.

What is Business Asset Disposal Relief (BADR)?

BADR is a CGT relief that can apply when you dispose of certain business assets or shares. It used to be called Entrepreneurs’ Relief, and many people still use the old name out of habit.

The headline benefit is simple: if you qualify, the gain is taxed at a lower rate than the standard CGT rates for many taxpayers. The important nuance is that BADR comes with a lifetime limit. Once you have used that allowance, any further gains are taxed at the normal CGT rates.

As of 6 April 2026, the BADR rate on qualifying gains is 18%. It was 14% for disposals between 6 April 2025 and 5 April 2026, and 10% on or before 5 April 2025.

If you are reading this thinking, “That’s still a big tax bill,” you are right. But compared with the standard CGT rates that can apply to gains on business assets and shares, currently 24% for higher and additional rate taxpayers, BADR can produce a meaningful saving of 6 percentage points on qualifying gains. When the numbers are large, that difference adds up quickly.

When can BADR apply?

Most BADR conversations fall into a few common scenarios: You might be selling all or part of a sole trade or partnership business, you might be selling shares in your limited company or you might be disposing of certain business assets as part of closing down or stepping away. The broad theme is the same: you are turning years of work into capital, and you want the tax position to be clear and controlled.

One practical point that matters early is the difference between a share sale and an asset sale. If your limited company sells assets rather than you selling shares, the tax bill can be very different, so do not assume BADR applies in the same way. Buyers often prefer different structures, and the tax outcomes can differ. It is one of the reasons we like to discuss the likely route long before Heads of Terms are agreed. It gives you more choice and reduces last-minute compromise.

Plain English tip: Heads of Terms (the “Heads”) are a very important legal document spelling out in overview the agreed deal terms before everyone gets down to the detail of the deal, which is when the real costs are added.

The conditions that really matter (and why timing is everything)

BADR is not a box you tick on the day of the sale. The rules look back over a qualifying period. In most cases, you need to meet the conditions for two years leading up to the disposal.

If you are selling shares in a company, there are additional “personal company” style tests that are easy to assume you meet, right up until you don’t. The typical tripwires are changes in shareholdings, changes in voting rights, or changes in what your shares entitle you to economically.

In everyday language, the relief is trying to confirm that you genuinely owned a meaningful stake, had meaningful influence, and were meaningfully involved for long enough.

That is why we push owners to check this early, not because we enjoy paperwork, but because it is painful to discover a problem after the buyer is in the room and the timetable is tight.

Rates, limits, and why the calendar can matter

Two things often shape BADR planning in practice.

The first is the £1 million lifetime limit. If you expect to make gains above that amount across one or more disposals, the “first slice” of qualifying gains might be taxed at the BADR rate, and the remainder at standard CGT rates. That makes the structure and sequencing of disposals more important.

The second is that tax rules and rates can change. As we mentioned earlier we have already seen staged increases in BADR rates over the last few years. For some owners, the difference between completing just before or just after a tax-year boundary can affect the outcome, particularly if you are already working with a larger gain. Timing can affect the tax result, but do not rely on dates alone. The completion date, contract terms and anti-forestalling rules all need checking before assuming which BADR rate applies.

This is not about rushing blindly. It is about knowing the facts early enough to make calm the right choices.

The mistakes often seen with BADR

Most BADR problems are not caused by “clever” planning gone wrong. They are caused by assumptions, for example

Assumption one: “I’ve owned the company for years, so of course I qualify.” Maybe. But the conditions can be specific. If your shareholding was diluted, or the rights attached to your shares changed, you may need to check carefully.

Assumption two: “We’ll sort the tax out once we know the price.” That is backwards. The best time to protect reliefs is often before the deal process heats up and “Heads” are agreed, while you can still adjust structure, roles, or timings if needed.

Assumption three: “It will be obvious how to claim.” BADR is not automatic. There is a formal claim process and a claim deadline. For example, a disposal in this current 2026/27 tax year would generally need a claim by 31 January 2029 (check the deadline for the tax year of your disposal).

The technical corner: Some detail behind BADR

For company shares, BADR is not just about owning shares for two years. You normally need to be an employee or office holder (e.g. Director), the company must be trading, and your shares must meet the 5% tests covering shareholding, voting rights, economic rights, and entitlement to at least 5% of the proceeds on a sale of the whole of the ordinary share capital (or at least 5% of distributable profits and net assets on a winding up).

Share structures such as growth shares or hurdle shares can sometimes fall short of these tests. So, if your shares have changed, new investors have come in, different share classes exist, or the company holds investments or surplus assets, check the position early.

The company must be trading, not mainly investment-based. This matters for companies with surplus cash, property, investments, or mixed activities. The company must be a trading company, or the holding company of a trading group. HMRC, the tax office applies a ‘not substantial’ test to determine this, broadly, non-trading activities (such as holding surplus cash, investments, or property) should represent less than 20% of the business across measures such as income, assets, and time spent. If your company has significant non-trading assets or activities, the position needs checking carefully.

Note, if the business has stopped trading as part of a closure, the timing of any asset disposals is important because the three-year rule can apply, which is where assets must be disposed of within three years to qualify.

Note also that assets you personally own but make available for the business to use, such as a trading premises or equipment, may qualify for BADR under the ‘associated disposal’ rules, but the conditions are stricter than for the main relief. To qualify, the disposal of the asset must happen at the same time as you dispose of your shares or business interest, and you must be reducing your participation in the business. The relief can also be restricted or eliminated if you have charged the business a market rate rent for use of the asset, or if the asset has not been used wholly for business purposes throughout the ownership period. If you own business premises personally, this is an area you must look into well before any exit conversation begins.

Your simple action plan

You do not need a 40-page report to take the first step. You need clarity.

Start by mapping the likely exit route and a realistic timetable. Then work backwards and check what must stay true for the relief to remain available. If you know there is a potential share issue, investor introduction, or restructuring coming up, bring the tax conversation forward, because those changes can affect eligibility.

Finally, a clear historical record of shareholdings, roles, and key documents makes it far easier to evidence your position and reduces issues during Due Diligence, which is when the technical detailed checks during the selling process are undertaken.

Plain English tip: Due diligence is the buyer’s homework. It is where they check the business carefully before agreeing the final deal.

A good exit is built through steady preparation, not a last minute scramble. The same is true of cashflow: regular checks give you more control and fewer surprises.

How Sanders Partnership can help

If you are even thinking about an exit in the next few years, we can help you get ahead of the tax detail and protect value. We always advise that you plan an exit as long as possible in advance. Two to three years is the bare minimum to stand a reasonable chance of  achieving your objectives. Start early!

We typically start with a short exit-readiness conversation: what your goals are, what route you want and are likely to take, and which dates and conditions matter most. From there, we can help you sense-check BADR eligibility, flag risks early, and coordinate with legal and specialist advisers where needed so the deal process runs smoothly.

Next step: book a short discovery meeting. We’ll help you turn “I think I qualify, I’m ready” into “I know where I stand, I have a clear plan and I’m ready.”

Important note: This article is general UK information and not personal tax advice. Always take professional advice based on your specific circumstances.