Who this is for: For founders with a business worth more than £1m who are within 10 years of a potential exit and have not yet introduced a holding company structure.
Most founders assume Business Asset Disposal Relief is something they will claim when they sell. They are right that it exists. They are wrong that it is automatic.
BADR reduces the CGT rate on qualifying business disposals from 20% to 10%. On a £5m exit, that is a £500,000 difference. On a £10m exit, it is £1m. The relief is real. But the qualifying conditions must be met for a continuous period of two years ending on the date of disposal.
What the two-year clock actually means
The two-year qualifying period requires that throughout that period, the business is a trading company (not an investment company), the individual holds at least 5% of the ordinary shares and voting rights, and the individual is an officer or employee of the company.
This sounds straightforward. It is not. The moment a holding company is introduced above the trading company without proper structuring, the shares the founder holds may no longer qualify as shares in a trading company. The moment the company's investment activities exceed a certain proportion of its total activities, the trading company test fails.
The situation most founders are in
A founder has been building for eight years. They are considering introducing a holding company to facilitate a future sale or to hold investment assets. Their accountant sets up the holding company. The founder's shares are now in the holding company, not the trading company.
Two years later, they sell. They expect to pay 10% CGT. HMRC assesses 20%. The two-year clock on the new structure had not run. The saving was £600,000. It is gone.
The lifetime allowance
BADR applies to a lifetime limit of £1m of qualifying gains. For founders with businesses worth more than £10m, the relief covers only a fraction of the exit. The gap above £1m is taxed at 20%. This is where additional planning. SSE, EIS reinvestment, or a structured exit via a SAFO: becomes relevant.
What the structure does
A properly designed holding company structure can preserve BADR eligibility while simultaneously building the architecture for Growth Capital and Expansion Capital. The key is sequencing: the structure must be in place, and the two-year clock must be running, before the decision to sell is made.
The founders who pay 10% on their exits did not get lucky. They started the clock two years before they needed it.
The relief does not reward the decision to sell. It rewards the decision to structure: made two years earlier.
The numbers
| Exit value | CGT at 20% (unstructured) | CGT at 10% (BADR) | Difference |
|---|---|---|---|
| £2m gain | £400,000 | £200,000 | £200,000 |
| £5m gain | £1,000,000 | £500,000 | £500,000 |
| £10m gain | £2,000,000 | £1,100,000* | £900,000 |
*BADR applies to first £1m of gains only; remainder at 20%.
The two-year window is open right now. The question is whether the structure is in place to use it.
The Window Is Open Now
The qualifying windows described in this article are not flexible. The structure has to be in place before the event that triggers the tax. The Capital Architecture maps the exact sequence and timing for your situation, so you know what needs to happen and in what order.
The audit is free and takes five minutes. The Capital Architecture is delivered within 48 hours of your intake call.
The Architecture Behind the Relief
BADR is a Stability-layer relief. It reduces the CGT rate on a qualifying disposal. It is valuable. It is also the ceiling of what standard exit planning addresses, and Parliament has already raised the rate once.
The Growth layer (a holding company with SSE eligibility) means the BADR rate is irrelevant for qualifying disposals. The Substantial Shareholding Exemption eliminates CGT entirely. SSE eligibility is determined by the holding structure, not by the trading company.
The Expansion layer is the constitutional architecture that ensures SSE eligibility is maintained and that the exit is structured to maximise the exemption rather than rely on a relief that Parliament has already started to erode. The founders who are protected from future BADR changes built the right structure before the rate changed.