If you are selling your limited company shares, the difference between 14% and 24% Capital Gains Tax is not small. On a £1 million gain, that is £100,000 in your pocket versus HMRC's. Business Asset Disposal Relief (BADR) locks in the lower rate. But HMRC does not hand it out automatically. You have to qualify, claim it correctly, and avoid the common traps that turn a 14% gain into a 24% one.
That is where a BADR accountant comes in. Not every accountant works with business exit planning. A general bookkeeper will file your year-end accounts but may not spot that your share structure fails the 5% test, or that your company has accumulated too much non-trading cash to qualify as a trading company. Those details cost you tens of thousands.
This article explains exactly what BADR requires, where claims go wrong, and why using a specialist BADR accountant is often the difference between a clean sale and a costly HMRC enquiry.
What Is Business Asset Disposal Relief?
BADR replaced Entrepreneurs' Relief in April 2020. The name changed but the rules stayed largely the same. It reduces the CGT rate on qualifying gains to 14% for disposals between 6 April 2025 and 5 April 2026. From 6 April 2026 the rate rises to 18%. Before 6 April 2025 it was 10%.
The relief applies to the first £1 million of qualifying gains over your lifetime. You can use it more than once, across multiple disposals, until you hit the cap. After that, gains are taxed at the standard CGT rates: 18% for basic rate taxpayers and 24% for higher rate taxpayers on most assets, or 24% for residential property gains.
For most business owners selling their limited company shares, BADR is the single most valuable relief available. The question is whether you qualify.
Who Qualifies for BADR on Company Shares?
To claim BADR on shares in your own trading company, you must meet three conditions throughout the 12 months ending with the date of disposal:
- You hold at least 5% of the ordinary share capital and voting rights. This is the 5% test. If you hold 4.9%, you fail. Joint shareholdings with a spouse do not aggregate unless the shares are held jointly in both names.
- You are entitled to at least 5% of the distributable profits and assets on a winding up. This catches people who hold 5% of shares but have different economic rights through alphabet shares or preference shares.
- The company is a trading company (or the holding company of a trading group). It must not have substantial non-trading activities. HMRC generally treats more than 20% non-trading income or assets as substantial.
You must also be an employee or officer (director) of the company throughout that 12-month period. That means you cannot sell the shares and resign on the same day. You need to hold the shares and the role for the full year.
The Trading Company Test
This is where most BADR claims fail. HMRC defines a trading company as one that carries on a trade and whose activities do not include substantial non-trading activities. Non-trading activities include investment income, property rental, holding cash reserves that are not needed for the trade, and owning investment properties.
If your company has accumulated £200,000 of retained profits sat in a bank account with no specific trading use, HMRC may argue those are non-trading assets. If they exceed 20% of total assets, the company fails the trading test. The same applies if you own a commercial property personally but rent it to your company. That rental income counts as non-trading for the company.
As ICAEW qualified accountants, we see this trap most often with contractors and consultants who have built up large cash reserves over years of trading. They assume the company is a trading company because it delivers services. But if the balance sheet shows £500,000 cash against £600,000 total assets, that is 83% non-trading assets. The claim fails.
There are solutions. Paying dividends before a sale, investing in capital assets, or restructuring the balance sheet can bring the company back inside the test. But these need planning months or years ahead, not the week before exchange.
What a BADR Accountant Checks Before a Sale
A general accountant files your annual accounts. A BADR accountant audits your exit readiness. Here is what we check:
- Share structure: Do you hold 5% of ordinary share capital and voting rights? Are there any alphabet shares that dilute your economic entitlement? Do any shareholder agreements override the default rights?
- Employment status: Have you been a director or employee for the full 12 months? If you took a break or resigned and rejoined, the clock resets.
- Trading status: We run the balance sheet test. What percentage of total assets are non-trading? What percentage of income is non-trading? We look at the last 12 months and the longer trend.
- Group structures: If you hold shares in a holding company that owns trading subsidiaries, the group must pass the trading test. We check each subsidiary and the group as a whole.
- Associated disposals: If you are selling your shares and also personally selling an asset used by the business (like a van or equipment), you may claim BADR on that disposal too. But the conditions are different and often missed.
We also check the timing. BADR claims must be made on your self assessment return (SA100 or SA108 for capital gains). If you miss the 31 January filing deadline, you can amend within 12 months. After that, you must write to HMRC and hope they accept a late claim. They often do not.
How a BADR Accountant Prevents HMRC Enquiries
BADR claims are a red flag for HMRC. They know the relief is valuable and that some people push the boundaries. A well-prepared claim with supporting documentation reduces the chance of an enquiry.
A BADR accountant prepares a trading status letter, a balance sheet analysis showing non-trading assets as a percentage of total assets, and a narrative explaining the company's trading activities. If HMRC opens an enquiry, that evidence is ready. Without it, you are writing letters from memory trying to justify why a cash balance was needed for the trade.
We also check the associated company rules. If you own shares in multiple companies, they may be associated for BADR purposes. That can affect the trading test at group level. It can also affect the £1 million lifetime limit if you have used BADR before on another company.
When to Start Planning with a BADR Accountant
The answer is: as soon as you know you want to sell. Ideally 18 to 24 months before the planned exit date. That gives time to restructure the balance sheet, pay down non-trading assets, and ensure the 12-month holding period is met.
If you are planning to sell in the next 6 months and have not checked your BADR eligibility, do it now. If you fail the trading test, there may still be time to take dividends or make capital investments that shift the balance. But the window is tight.
If you are further out, say 3 to 5 years, the planning is more flexible. We can structure shareholdings, add family members as shareholders (using alphabet shares to control dividend rights), and manage the trading status year by year so there are no surprises at exit.
What Happens If You Do Not Use a BADR Accountant
You file your self assessment, claim BADR, and hope HMRC accepts it. If they do, you pay 14% instead of 24%. If they challenge it, you face an enquiry that can take 12 to 18 months, cost thousands in professional fees, and potentially result in the relief being denied plus interest and penalties.
Even if the claim is valid, the enquiry process is stressful. HMRC will ask for evidence of trading status, shareholdings, and employment. If your records are not clear, they may argue the claim fails on technical grounds even if the substance is correct.
We have seen cases where a director held 5.1% of shares but the company's articles gave different voting rights, reducing the effective holding below 5%. The director thought they qualified. They did not. The relief was denied and the gain taxed at 24%.
That is the value of a BADR accountant. Not just filing the claim, but checking every detail before you commit to a sale.
Cost of a BADR Accountant vs the Tax Saved
On a £500,000 gain, BADR saves you £50,000 compared to the 24% rate (14% vs 24% = 10% saving). Even on a £200,000 gain, the saving is £20,000. A BADR review and claim preparation typically costs a fraction of that. The return on investment is obvious.
If your gain is smaller, say £50,000, the saving is £5,000. Still worth paying for specialist advice if your situation is complex. For straightforward claims with a clean trading company and clear shareholding, a good accountant can handle it without a separate BADR specialist. But if there is any doubt on the trading test, share structure, or associated companies, bring in someone who does this regularly.
How to Find a BADR Accountant
Look for an accountant who specifically mentions business exit planning, capital gains tax, and BADR on their services page. Ask them how many BADR claims they have handled in the last 12 months. Ask if they prepare a trading status letter as standard. Ask if they review the balance sheet for non-trading assets before the sale.
At Holloway Davies, we are ICAEW qualified and work with business owners across every sector on exit planning. We review your full position, identify any gaps, and structure the exit to lock in the relief. If you are thinking about selling, contact us for a BADR readiness review.
BADR Rate Changes for 2025/26 and 2026/27
The rate changes are already legislated. For disposals on or after 6 April 2025, BADR applies at 14%. From 6 April 2026, it rises to 18%. The £1 million lifetime limit remains unchanged.
If you are planning a sale, the timing matters. Selling before 6 April 2025 locked in 10%. Selling in the current tax year (2025/26) gives 14%. Waiting until 2026/27 costs you an extra 4% on the gain. On £1 million, that is an extra £40,000 in tax.
That does not mean you should rush a sale if the business is not ready. But it does mean you should have a clear timeline and work backwards from it. If you can sell before April 2026, you save 4% versus waiting. If you need more time to prepare, the 18% rate from 2026 is still better than the standard 24%.
What to Do Next
If you are a limited company director considering an exit, start the BADR planning process now. Even if the sale is 2 or 3 years away, the decisions you make today about dividends, capital investments, and share structure affect your eligibility.
If the sale is imminent, book a BADR review immediately. We can assess your position, identify any issues, and advise on whether a restructure is possible before completion.
For more detail on the technical rules, see our glossary entry on BADR and our exit and capital gains blog. If you are also considering R&D tax credits or incorporation, those interact with exit planning too.

