The Numbers Behind the Wave
A quiet but significant shift is taking place across the UK’s small and medium-sized business landscape. According to the Generation EO study published in late 2023 by Ownership at Work and ThinCats, nearly a third of SME owners aged 43 and over say they are likely to sell at least part of their ownership stake within five years. Half expect to do so within ten years.
In real terms, that translates to roughly 58,000 mid-sized businesses likely to see an ownership change within five years, and around 130,000 across all exit routes within ten. This is not a forecast based on speculation — it reflects the stated intentions of the owners themselves.
What makes this wave particularly challenging is that it coincides with the most significant tightening of tax reliefs for business owners in a generation. Between October 2024 and April 2026, five separate reliefs have been reduced or capped, changing the economics of selling, gifting, or passing on a business.
Why Now? The Convergence of Three Forces
Demographics: The baby boomer generation of business owners, many of whom started their companies in the 1980s and 1990s, are reaching retirement age. They have been the backbone of the UK’s SME sector for decades, and their exit from active ownership was always going to create a succession challenge. The timing is simply catching up with biology.
Tax pressure: The narrowing of tax reliefs has shortened the planning horizon for many owners. Under the old rules, an owner could afford to take a relaxed approach to succession planning — the tax cost of passing on a business was modest. Under the new rules, delay has a tangible cost:
- Business Asset Disposal Relief (BADR) has risen from 10% to 18% CGT
- Employee Ownership Trust relief has been halved from 100% to 50%
- Business Property Relief for IHT is now capped at £2.5 million per person
- Standard CGT has increased from 20% to 24%
- Investors’ Relief lifetime limit has been cut from £10 million to £1 million
Market conditions: Buyer appetite for well-prepared businesses remains strong, but expectations have shifted. Buyers — whether trade acquirers, private equity, or management teams — increasingly expect structured businesses with documented processes, diversified revenue, and reduced founder dependency. A business that relies entirely on its owner is harder to sell and commands a lower multiple.
The Founder Dependency Problem
The single biggest obstacle to a successful exit is founder dependency. This is the situation where the business cannot function effectively without its owner — because the owner holds all the key relationships, makes all the important decisions, or carries all the institutional knowledge in their head.
Founder dependency reduces business value in several ways:
- Buyer risk: If the owner is the business, what is the buyer actually purchasing? A buyer will discount the price to reflect the risk that revenue, relationships, and operational knowledge will leave when the owner does.
- Transition difficulty: A founder-dependent business requires a long and complex handover period. This extends the timeline, increases the risk of deal failure, and often requires the owner to remain involved for longer than they intended.
- Operational fragility: A business that depends on one person is vulnerable to illness, burnout, or simply the owner’s desire to step back. This is a risk that sophisticated buyers will identify and price into their offer.
Reducing founder dependency is not something that happens overnight. It requires deliberate effort to build management capability, document processes, and transfer relationships to other members of the team. Most advisers suggest a minimum of two to three years to make meaningful progress.
The Five-Year Preparation Framework
For owners who anticipate an exit within the next five years, a structured preparation process can make the difference between a successful sale and a disappointing one.
Year 1 — Assessment and foundation:
- Get a professional business valuation
- Identify the key drivers of value and the main risks
- Review your personal estate plan in light of the new tax rules
- Begin documenting key processes and relationships
Year 2 — Management development:
- Start delegating key client relationships to senior team members
- Build a management team capable of running the business without you
- Implement proper financial reporting and governance structures
Year 3 — Operational independence:
- Test the business’s ability to operate without the owner’s daily involvement
- Take extended time away from the business as a practical test
- Address any remaining dependencies or single points of failure
Year 4 — Market preparation:
- Engage corporate finance advisers to prepare the business for sale
- Optimise the financial profile — clean balance sheet, recurring revenue, manageable costs
- Identify likely buyer types and understand what they value
Year 5 — Execution:
- Go to market with a well-prepared business
- Manage the sale process with professional support
- Execute your personal estate and tax plan alongside the business transaction
Estate Planning and Exit Planning Are the Same Conversation
One of the most common mistakes business owners make is treating exit planning and estate planning as separate exercises. They are not. The tax treatment of a business sale, the structure of your will, the way your pension and life insurance are set up, and the ownership structure of your company are all interconnected.
A business owner who sells their company for £3 million without proper estate planning may find that a significant portion of the proceeds is eroded by CGT on the sale and IHT on the resulting cash in their estate. Proper planning — including the use of trusts, pension contributions, spousal transfers, and lifetime gifting — can legitimately reduce this burden.
But these strategies require time. You cannot restructure ownership on the eve of a sale. You cannot establish a trust and expect it to provide IHT savings within a few months. The seven-year clock for lifetime gifts starts from the date of the gift, not the date of the sale.
The Risk of Doing Nothing
The owners who will be most affected by the succession wave are those who have not started preparing. They face a difficult combination of higher tax costs, a crowded market of businesses for sale, and limited options for reducing the tax burden at short notice.
The five-year window is not a deadline — it is a planning horizon. The sooner you start, the more options you have and the better the outcome is likely to be.
If you are thinking about your business exit and want to understand the estate planning implications, contact The Legacy Wills Company for a no-obligation conversation.