If you've built a digital agency from scratch, the sale is the moment you finally cash in. But the taxman takes a significant cut of that gain unless you plan ahead.
Business Asset Disposal Relief (BADR) is the single most valuable tax relief available when you sell your agency. It reduces your Capital Gains Tax (CGT) rate from 20% to 18% on the first £1m of qualifying gains. For a founder selling a 12-person digital agency billing £800k per year, that difference could easily be £50,000 or more in your pocket rather than HMRC's.
But BADR isn't automatic. You have to meet specific conditions, and you need to start meeting them well before you begin the sale process. Here's exactly what you need to know as an agency founder.
What is Business Asset Disposal Relief?
BADR was previously called Entrepreneurs' Relief. The name changed in 2020, but the core relief stayed the same. It's a relief that reduces the rate of CGT you pay when you sell all or part of your business.
without BADR, you pay 24% CGT on gains from selling shares in your agency (assuming you're a higher rate taxpayer). With BADR, you pay 18% on the first £1m of gains you make in your lifetime. Gains above £1m are taxed at the normal 24% rate.
Let's put numbers on it. You sell your agency for £1.5m. Your shares cost you £100 when you set up the company. Your gain is £1,499,900. With BADR, you pay 18% on the first £1m (£100,000) and 20% on the remaining £499,900 (£99,980). Total tax: £199,980. without BADR, you'd pay 24% on the full gain: £299,980. That's a £100,000 difference.
For most agency founders selling a business worth between £500k and £5m, BADR is the difference between a comfortable retirement and a frustrating one.
Who Qualifies for BADR?
The conditions for BADR are specific. You must meet all of them for the 24 months immediately before the sale. Here's what HMRC looks at.
You Must Be a Director or Employee
You need to be an officer or employee of the agency. That means you're on payroll, drawing a salary, and recorded as a director at Companies House. A silent shareholder who doesn't work in the business doesn't qualify.
If you've stepped back from day-to-day operations but remain a director, you still qualify. If you resigned as director and stopped working 18 months before the sale, you don't.
You Must Hold at Least 5% of the Shares
You need to own at least 5% of the ordinary share capital of the company. That 5% must give you at least 5% of the voting rights and 5% of the profits available for distribution.
This catches out founders who dilute their stake too far before exit. If you've taken on investors and now hold only 4%, BADR doesn't apply to your shares. You'd pay 20% on the gain.
The Company Must Be a Trading Business
Your agency must be a trading company. HMRC defines this as at least 80% of the company's activities being trading activities rather than investment activities.
For most marketing agencies, digital agencies, creative agencies, and PR agencies, this is straightforward. You sell services, not investments. But if your agency has built up a large property portfolio or holds significant investments, HMRC may challenge the trading status.
If you're running a recruitment agency, the same rules apply. As long as the bulk of your activity is placing candidates and invoicing clients, you're trading.
The 24-Month Rule
You must meet all the conditions above for the 24 months immediately before the date of sale. If you sell on 1st June 2026, you need to have been a director, holding 5% of shares, in a trading company since 1st June 2024.
This is where planning matters. If you're thinking about selling in 12 months and you're not currently meeting the conditions, you have a problem. You need to fix it now.
What Counts as a Disposal?
BADR applies to the disposal of shares in your agency. A disposal includes a sale, a gift, or a transfer into a trust. It also includes a liquidation where the company is wound up and assets distributed to shareholders.
For most agency founders, the disposal is a straightforward sale of shares to a buyer. That buyer could be a competitor, a private equity firm, a management buyout team, or an individual.
BADR also applies if you sell your agency's assets as a going concern if you're a sole trader or partnership. But most agency founders operate through a limited company, so we'll focus on share disposals.
The £1m Lifetime Limit
BADR applies to the first £1m of qualifying gains you make in your lifetime. It's not per business. If you sell one agency for a £600k gain and later sell another for a £500k gain, the first £1 million is covered at 18%. The remaining £100k is taxed at 20%.
If you've already used BADR on a previous business sale, you have less capacity available. Check your previous filings. If you claimed Entrepreneurs' Relief on a sale in 2015, that counts towards the £1m lifetime limit.
Common Pitfalls for Agency Founders
I've seen agency founders lose BADR because of simple mistakes. Here are the most common ones.