UK exit tax when relocating a business.

People searching for a UK exit tax are usually thinking of one charge. In practice there are several, and they hit different parties at different moments: the company on migration, the shareholders on any later disposal, and the individual founder on the way out and, if they come back too soon, on the way in again.

Getting the sequence wrong is what creates cost. A structure moved before a value event is a very different position from the same structure moved after one.

When a company ceases to be UK tax resident, it is generally treated as having disposed of its assets at market value immediately before that moment, and reacquired them at the same value. Chargeable gains crystallise even though nothing has been sold and no cash has moved.

The practical questions are: which assets sit inside the company, what they are worth on the migration date, and whether the value is concentrated in something mobile such as intellectual property, goodwill or an investment portfolio. Trading companies with modest balance sheets often migrate with little charge. Companies holding appreciated IP or property rarely do.

Where the company migrates to an EU or EEA state, HMRC operates exit charge payment plans that allow the liability to be paid in instalments rather than in one sum. That option does not exist for every destination, which is one reason the destination shortlist and the tax modelling have to be built together rather than in sequence.

A UK-incorporated company is UK resident by incorporation unless a treaty says otherwise, and a foreign-incorporated company can still be UK resident if it is centrally managed and controlled from the UK. Registering a company overseas while the decisions are still taken from a UK kitchen table does not move residence, it just creates a dual-residence problem.

Board composition, where meetings genuinely happen, who holds authority over spending and strategy, and where the substantive decisions are documented all matter more than the certificate of incorporation.

Founders often leave the UK expecting a clean five-minute break. The temporary non-residence rules exist precisely to stop short absences being used to strip gains and certain income out of the UK net. If you leave, realise a gain, and return within the relevant period, that gain can be brought back into charge in the year of return.

Whether you are non-resident at all is decided by the Statutory Residence Test, which is fact-heavy and unforgiving about day counting. It deserves its own read before any departure date is fixed.

Order of events, first: whether the migration happens before or after a funding round, a disposal or an IP transfer usually changes the number more than the destination does.

Then valuation evidence, because a deemed disposal is only as defensible as the valuation behind it. Then whether the UK activity genuinely ceases or leaves a permanent establishment behind. Then the treaty position and withholding profile for getting profits out of the new jurisdiction. Then whether liquidation, share-for-share or a straight migration is the cleaner route for the shareholders.

A UK trading company with £2m of goodwill and IP on the balance sheet migrates. On the day residence ceases, those assets are treated as sold at market value. The corporation tax charge is on the gain over base cost, not on the £2m, and there is no sale proceeds to fund it. The founders also hold the shares personally, so their own residence position determines whether a later share sale is UK taxable at all.

The answer in that case is almost never simply move. It is decide what should be inside the company at the point it moves.