Published: March 16, 2026 | Reading time: ~5 minutes | Category: UK Business Tax & Exit Planning
🚨 URGENT: The BADR Capital Gains Tax rate rises from 14% to 18% on 6 April 2026. For a £1 million exit, this means up to £34,000 more in tax if you miss the deadline. This is not a planning consideration — it is a deadline.
For UK business owners planning to sell in 2026, one date defines the landscape: 6 April 2026. On that date, the Capital Gains Tax rate applying to qualifying business disposals under Business Asset Disposal Relief (BADR) rises from 14% to 18% — a 4 percentage point increase confirmed in the Autumn 2024 Budget and now imminent.
This is the third CGT rate change in 18 months. BADR moved from 10% to 14% on 6 April 2025. It now moves to 18% on 6 April 2026. For business owners who have not yet acted, the window to benefit from the current 14% rate is closing fast. This guide explains exactly what BADR is, who qualifies, how much you stand to lose by waiting, and what you must do to protect your exit proceeds — with verified data from HMRC and leading UK tax authorities. You can list your business today at the SellAnyBiz UK Marketplace and begin the sale process before the April deadline.
What Is Business Asset Disposal Relief (BADR)?
Business Asset Disposal Relief — formerly known as Entrepreneurs’ Relief until April 2020 — is a UK government tax relief that reduces the Capital Gains Tax rate on qualifying gains from the disposal of eligible business assets. Without BADR, a higher-rate taxpayer selling a business in 2026 would pay CGT at 24% on their gain. With BADR, that rate reduces to 14% (before 6 April 2026) or 18% (from 6 April 2026 onwards) on the first £1 million of qualifying gains.
BADR is available on disposals by individuals — not companies — and applies to the sale of a business, shares in a personal company, or an individual’s interest in a trading partnership. Full details and official claim guidance are available on HMRC’s BADR page.
BADR CGT Rate History & What’s Changing on 6 April 2026
The table below shows the full BADR rate progression — and makes clear exactly what is at stake for sellers who complete a disposal after 5 April 2026.
| Disposal Period | BADR CGT Rate | Standard CGT Rate (Higher) | Saving vs No BADR |
|---|---|---|---|
| Before 6 Apr 2025 | 10% | 24% | 14% saving per £ |
| 6 Apr 2025 – 5 Apr 2026 | 14% | 24% | 10% saving per £ |
| 6 Apr 2026 onwards | 18% | 24% | 6% saving per £ |
Note: Standard CGT higher rate of 24% applies to gains exceeding the basic rate band. BADR lifetime limit remains £1 million across all qualifying disposals. (Source: HMRC / Deloitte Tax Policy Map, 2025)
The Real Numbers: How Much More Tax Will You Pay After April 2026?
Abstract percentages rarely motivate action. The table below translates the rate change into actual pounds, based on three common UK SME exit values. These figures assume the full £1 million BADR lifetime limit is available, gains are calculated net of the seller’s original investment and allowable costs, and no other reliefs apply.
| Exit Value | Gain (after costs) | CGT at 14% (before Apr 2026) | CGT at 18% (after Apr 2026) | Extra Tax Post-April |
|---|---|---|---|---|
| £500,000 | £420,000* | £58,800 | £75,600 | £16,800 more |
| £750,000 | £650,000* | £91,000 | £117,000 | £26,000 more |
| £1,000,000 | £850,000* | £119,000 | £153,000 | £34,000 more |
* Gain estimates are illustrative, net of acquisition cost and allowable expenses. Actual tax liability depends on individual circumstances. Always consult a qualified UK tax adviser. (Source: HMRC BADR framework, CLFI Insights)
💡 For a business sold at £1 million with an £850,000 qualifying gain — completing before 6 April 2026 saves £34,000 in CGT versus completing the same deal after that date. That figure represents 4% of the headline sale price.
BADR Eligibility: Do You Qualify? A Practical Checklist
BADR is not automatic — it must be claimed, and specific conditions must be met throughout the qualifying period. The table below summarises the core eligibility requirements for a company share sale (the most common SME exit structure). Note: conditions differ slightly for sole traders and partnerships.
| Requirement | Detail | Status |
|---|---|---|
| Ownership period | Must own the business for at least 2 years before disposal | ✅ Required |
| Trading status | Business must be a qualifying trading company (not investment) | ✅ Required |
| Minimum shareholding | At least 5% of ordinary shares and voting rights | ✅ Required |
| Employee or officer | Must be an employee or officer of the company | ✅ Required |
| Lifetime limit | Max £1 million of qualifying gains across all disposals | ⚠️ Check total |
| Investors’ Relief limit | Reduced from £10M to £1M as of Oct 2024 (different from BADR) | ⚠️ Changed |
Common Reasons BADR Claims Are Rejected
- The business holds significant investment assets (property, shares) rather than trading predominantly
- The seller holds less than 5% of ordinary share capital or voting rights
- The two-year ownership condition was not met before the disposal date
- The company is classified as an investment company rather than a trading company by HMRC
- The seller has already used up the full £1 million BADR lifetime limit on prior disposals
If you are uncertain about your eligibility, take independent tax advice immediately — do not assume you qualify. SellAnyBiz’s legal services team can connect you with qualified tax advisers who specialise in UK business disposals.
Investors’ Relief: The Often-Overlooked Companion Relief
Investors’ Relief (IR) is a separate but related CGT relief available to external investors — individuals who subscribed for shares in an unlisted trading company but are not employees or paid directors. IR follows the same CGT rate as BADR (currently 14%, rising to 18% from 6 April 2026), but its lifetime limit was dramatically reduced from £10 million to £1 million for disposals made on or after 30 October 2024.
For angel investors and early-stage shareholders in UK companies who have not yet exited, the combination of a reduced lifetime limit and an imminent rate increase makes timing highly consequential. Those with qualifying IR gains approaching £1 million should act urgently.
Anti-Forestalling Rules: You Cannot Simply Back-Date a Sale
HMRC introduced anti-forestalling rules alongside the BADR rate changes to prevent sellers from artificially bringing forward disposal dates. Specifically, contracts exchanged before a rate-change date but completing after will be assessed at the rate applicable at the date of completion — not exchange — unless specific conditions apply.
This means you cannot simply sign a conditional sale agreement before 5 April 2026 and claim the 14% rate if the deal completes in May. The disposal must genuinely complete before 6 April 2026 for the current rate to apply.
⚠️ Anti-forestalling also applies to certain corporate reorganisations and earn-out structures. If your deal includes deferred consideration or an earn-out, the CGT treatment of each tranche may differ. Take specific tax advice on deal structure before signing.
What UK Business Owners Should Do Right Now
Step 1: Verify Your BADR Eligibility Today
Confirm your shareholding percentage, ownership period, and trading status with a qualified tax adviser. Check your cumulative BADR claims against the £1 million lifetime limit at HMRC’s official guidance. Do not assume eligibility — verify it.
Step 2: Get a Professional Business Valuation
Understanding your exit value is the foundation of any tax planning exercise. Use our UK Business Valuation Guide to benchmark your EBITDA multiple by sector, and commission a formal valuation before listing. Buyers will apply their own methodology — you need a credible counter-position ready.
Step 3: Prepare Your Business for Sale
Three years of clean management accounts, documented contracts, an organised Companies House filing history, and a business that operates without founder dependency will all accelerate the sale process and protect your valuation. Our AI-powered bookkeeping service can help you get investor-ready financials in place rapidly. Verify your company’s standing at Companies House before any buyer conducts due diligence.
Step 4: List and Transact Before 6 April 2026
Given that a typical UK SME sale takes 3–6 months from listing to completion, any seller intending to benefit from the 14% BADR rate should already be in an active sale process. SellAnyBiz’s due diligence services and legal team are structured to accelerate deal completion — but time is the critical variable that no service can manufacture.
Conclusion: The April 2026 Deadline Is Not a Suggestion
The BADR rate change on 6 April 2026 is confirmed, legislated, and imminent. For UK business owners with qualifying gains approaching £1 million, the difference between completing before and after that date is real, material, and — critically — avoidable with the right preparation.
The question is not whether to act. The question is whether you have left yourself enough time to act effectively. UK SME sales are not transacted overnight. They require valuation, marketing, buyer identification, due diligence, legal review, and completion — a process that typically takes 3–6 months for a well-prepared business.
We have covered the complementary decisions — including why timing matters before April 2026 and how to fund a UK business acquisition with no money down — in our broader UK series. If you are a seller, start now.
List your UK business today and speak to an advisor: sellanybiz.com/landing-uk
⚠️ Disclaimer: This article is for informational purposes only and does not constitute tax, legal, or financial advice. Tax rules are complex and individual circumstances vary. Always consult a qualified UK tax adviser before making decisions about the sale of your business.
Tags: capital gains tax UK business sale 2026 | Business Asset Disposal Relief UK | BADR April 2026 | CGT business sale UK | sell my business tax UK | entrepreneur’s relief UK | HMRC BADR | SME exit planning UK
