For most business owners, selling all or part of the business is the single biggest financial event of their lives. If you have built up several activities inside one company, that sale can be messy and expensive. If instead you hold each activity in its own subsidiary under a holding company, you can often sell just one part cleanly, while the rest of the group carries on as normal.
This guide explains why a group structure makes a sale tidier, and how a relief called the Substantial Shareholding Exemption (SSE) can make the gain on selling a subsidiary exempt from corporation tax. It sits alongside our wider group structures guide, and is the natural follow-on from creating the group in the first place.
Imagine a single company that runs two very different activities, say a software product and a separate consultancy arm. A buyer who only wants the software now has a problem: how do they buy just that part without taking on the consultancy, its staff, its contracts and its history? The usual answer is a complicated "carve-out", separating assets and people inside one legal entity, which is slow, costly and risky.
In a group, each activity already sits in its own company. To sell the software business you simply sell the shares in that subsidiary. The buyer gets a self-contained company with its own contracts, staff and accounts. The holding company and the other subsidiaries are unaffected and keep trading.