Part of our complete guide to business structure.
Why incorporating can trigger a tax bill in the first place
When you incorporate, you're legally disposing of your sole trader business, including its goodwill and any business assets, and the new limited company is acquiring them. For Capital Gains Tax purposes, that's a disposal at market value even though no cash actually changes hands between you and a third party. If your business has built up real value, particularly goodwill, that disposal can create a CGT liability out of nowhere, right at the point you're trying to restructure for growth.
What incorporation relief actually does
Incorporation relief, under section 162 of the Taxation of Chargeable Gains Act 1992, doesn't cancel that gain, it defers it. Instead of paying CGT on the transfer now, the gain is rolled into the base cost of the new shares you receive in the company. You only become chargeable when you eventually sell or dispose of those shares, and at that point it's taxed as a share disposal, not a business-asset disposal.
Key point: This is a deferral, not an exemption. The gain doesn't disappear, it moves forward to a future disposal of your shares, which could be years away, or might attract Business Asset Disposal Relief if you qualify when you eventually sell.
The three conditions you need to meet
- You must transfer the whole business as a going concern, not just selected assets, cherry-picking what goes into the company breaks the relief
- All the business assets must transfer, except cash can usually be left out and handled separately
- The consideration must be wholly or mainly shares in the new company, not cash or a loan account credit
What happens if you take cash as part of the deal
It's common to structure incorporation so some of the business's value is left as a director's loan owed to you by the company, rather than converted entirely into shares, so you can draw it out later without further tax. The catch is that incorporation relief only defers the portion of the gain matched to shares. Whatever portion is matched to non-share consideration, cash or a loan credit, becomes chargeable immediately, at the point of incorporation, not deferred at all.
Where this trips people up
- Goodwill valuation disputes. HMRC can challenge an aggressive goodwill valuation on incorporation, and getting it wrong either overstates the deferred gain or creates a later problem if the figure can't be supported
- Property investment businesses. Simply holding rental property and collecting rent generally isn't a "business" for this relief, HMRC expects evidence of active management, this is a genuine grey area worth getting checked before you assume the relief applies
- Partial transfers. If you keep an asset back, a van, a property, intending to lease it to the company instead of transferring it, that asset's gain (if any) isn't covered by the relief at all
Thinking about incorporating? Get the goodwill valuation and the share structure right before you file anything with Companies House, not after. Book a free consultation and we'll map out whether incorporation relief applies to your specific business before you commit to the move, as part of our company formation service.
Frequently asked questions
What is incorporation relief?
Incorporation relief (under TCGA 1992 s162) defers Capital Gains Tax that would otherwise arise when you transfer your sole trader business, including its goodwill and assets, into a limited company in exchange for shares.
Do I have to claim incorporation relief?
No, it applies automatically if you meet the conditions, you don't elect into it, though you can elect out of it in specific circumstances if deferral isn't what you want.
What happens if I take some cash on incorporation?
If you receive anything other than shares, such as cash or a director's loan credit, that portion of the gain is treated as a chargeable disposal immediately rather than deferred, so partial consideration only partially defers the gain.
Does incorporation relief apply to property businesses?
It can, but only where the activity amounts to a genuine business being carried on, not simply passive property letting, which HMRC generally doesn't treat as a business for this relief.