Exit tax UK rules apply when a company ceases to be UK tax resident. HMRC treats the company as having sold and immediately reacquired its assets at market value, and any unrealised gains are charged to corporation tax. The UK has no general exit tax for individuals, but UK exit tax for companies can be a significant cost for SMEs that relocate management, restructure, or move assets abroad.
When Can Moving a Company or Its Assets Trigger Exit Taxation?
Exit taxation is triggered when a company stops being UK resident. Generally, a UK-incorporated company is UK resident by default. It can, however, be treated as non-resident under a double tax treaty if it is also resident elsewhere and its central management and control sits abroad. Moving the board overseas may therefore be enough, even if no assets physically move.
A charge can also arise when a non-UK resident company removes assets from the UK permanent establishment through which it carries on a trade.
On migration, the company’s accounting period ends. The company must notify HMRC of its intention to leave and set out the tax due and how it will be paid.
Which Assets May Create a UK Leaving Tax Liability?
A UK leaving tax liability can arise on more than property. The deemed disposal at market value covers:
- Chargeable assets: land, shares, goodwill and other assets standing at a gain.
- Intangible fixed assets: intellectual property, brands, software and licenses.
- Loan relationships and derivative contracts: where a profit would arise on realisation.
- Trading stock: brought in at market value, because the trade is treated as ceasing.
- Capital allowance pools: market value proceeds can create balancing charges.
How Do Companies Calculate UK Exit Tax?
The calculation follows five steps:
- Value each asset at market value on the date of exit.
- Deduct original cost, qualifying enhancement expenditure and, where relevant, indexation allowance (frozen at December 2017), to find each gain or loss.
- Add profits or losses on intangibles, loan relationships, derivatives and trading stock, plus any balancing charges.
- Set off allowable losses and apply reliefs such as the substantial shareholding exemption, where its conditions are met.
- Apply corporation tax to the total profits of the final accounting period: 19% up to £50,000, 25% above £250,000, with marginal relief in between, subject to the associated-company rules and other applicable conditions.
Which Exit Tax Reliefs and Payment Options May Apply?
Three routes are worth exploring:
- Substantial shareholding exemption: may exempt gains on qualifying shareholdings in trading companies.
- Retaining a UK permanent establishment: keeps the relevant assets within UK corporation tax and outside the charge.
- Exit charge payment plan: allows the deferred tax to be paid in six equal annual instalments, with interest.
How Should Companies Prepare Before Leaving the UK Tax Net?
Planning should start well before the move, ideally a year ahead.
- Obtain reliable valuations for all significant assets.
- Model the cash flow impact of the charge, including any instalments.
- Decide whether retaining a UK permanent establishment is practical.
- Check the destination country’s residence rules and entry taxes.
- Plan final compliance: VAT deregistration, PAYE and NIC for UK employees, CIS obligations, where applicable.
- Keep MTD-compliant records so the final return can be prepared accurately.
Conclusion
Exit taxation can turn unrealised gains into a real liability at the point a company leaves the UK tax net. Understanding what triggers it, which assets are caught and how the charge is calculated helps businesses plan, protect cash flow and avoid surprises.
To discuss your position, contact Befree today.