Valuation Reality for Partial Sales: Price Today vs Value Later

Valuation in a partial business sale works differently from a full exit. When a founder sells 100 per cent, the valuation is straightforward: an agreed multiple of adjusted EBITDA applied to a single transaction. In a partial sale, the picture is more nuanced. The founder receives cash for the stake sold today, retains equity in the business, and participates in value growth during the partnership period before a second exit. This creates two valuation events, not one. The price paid today is typically based on a multiple of trailing EBITDA, adjusted for normalisation items such as owner remuneration, one-off costs and related-party transactions. A minority discount of 10 to 25 per cent may be applied to reflect the buyer's lack of control, although this varies depending on buyer type, deal structure and the protections offered to the incoming shareholder. The total economic outcome across both stages frequently exceeds what a single full sale would have achieved, because the second buyer pays a multiple on a larger, better-performing business. This page explains how partial sale valuations work in the UK lower mid-market, what drives multiples, how rollover equity changes the economics, and what founders should focus on when assessing an offer. This guide explains how partial sale valuations work in the UK lower mid-market, what drives multiples, and how rollover equity changes the economics.

Mergers.co.uk is a sell-side advisory firm acting exclusively for UK business owners. We specialise in partial business sales, strategic trade partnerships and staged exits for SMEs with turnover between £2m and £25m.