Moving to the UAE can be a very good financial move for a UK professional. It can also turn into an expensive mistake if the UK tax exit is not handled properly.
We have helped UK professionals move from the UK to the UAE and end up with a clean break from UK tax. We have also seen people arrive in Dubai with a UAE visa, a new company, a good lifestyle, and a surprise £80,000 HMRC bill that they did not expect.
The mistakes behind those bills are simple. Smart people make them when they focus on the UAE side of the move and give too little attention to the UK exit. What moving without UK exit planning looks like in practice is worth reading before you go through the errors below.
Why UK tax exit is harder than it looks
Most movers think the same thing. They leave the UK, live in the UAE, and pay no UK tax. That is true only when the exit is done right.
The UK uses the Statutory Residence Test to check whether you are UK tax resident in a tax year. The SRT uses automatic tests, sufficient ties tests, and day count rules. These parts work together. If you get your departure date wrong by a few weeks, you can stay UK resident for the whole year. UK residents pay UK tax on worldwide income.
You also need to think about exit tax. The UK does not let you leave with untaxed gains and no follow-up. Some assets count as sold on the day you leave. You also keep UK tax issues on things you leave behind, like UK property, UK pension, and a UK company.
Error 1: Getting the departure date wrong
The UK tax year runs from April 6 to April 5. That date matters more than almost anything else in UK exit planning.
If you leave the UK before April 6 and establish UAE residency in the same tax year, you may split the year. The part before departure is taxed in the UK. The part after is not.
If you leave in March and arrive in the UAE in March, you spend most of the tax year in the UK. Depending on your UK ties and day count, you may still be UK resident for the whole year.
The simple fix many people miss is to leave after April 5. You start the new tax year already in the UAE. That is one of the cleanest ways to cut UK tax exposure in the year you leave.
If you get this wrong, you can stay UK resident for a year you thought was clean. On a £200,000 income, that can mean a UK tax bill of more than £80,000 on income you expected to be UAE tax-free.
Error 2: Misreading the Statutory Residence Test
Many people focus on the “183 days” rule and think that is the whole test. It is not. If you have UK ties like a UK home, a UK spouse, UK employment, or previous UK residence, Statutory Residence Test for UAE movers can cut your safe day count far below 183. With three ties, you can become UK resident after just 45 days. With four ties, it drops to 16. A few business trips, a Christmas visit, and one long weekend back can be enough. Check your ties and day count before you book flights, not after.
Error 3: Ignoring exit tax on assets
When you leave the UK, HMRC can treat some assets as if you sold them on the day you left. Shares in your UK limited company are the usual case. You do not sell anything. You do not receive cash. But HMRC still calculates the gain and CGT is due. On a company worth £600,000 that you bought for a nominal amount, this can mean more than £140,000 due before you earn a single dirham. The planning options are real, but they do not stay open for long. They close once you leave. Read the full breakdown of what UK exit tax means for UAE movers before you set your departure date.
Error 4: Keeping too many UK ties
UK ties under the SRT include:
- A UK home available to you, owned or rented
- A UK spouse or partner living in the UK
- Substantive UK work, more than 3 hours a day for 40 or more days in a tax year
- UK residence in the previous tax years
Most UK nationals moving to Dubai keep two or three of these ties. Keeping the family home just in case is very common. Keeping a UK role part time is another.
Each tie lowers the number of UK days you can safely spend. Two ties allow up to 90 days. Three ties allow up to 45. Four ties allow up to 16.
People who end up accidentally UK resident usually have three or four ties. They also fail to count their UK days carefully. One long work trip back, one Christmas visit, and two business trips can use up the allowance fast.
Error 5: Not filing the P85
The P85 is HMRC’s form for saying you are leaving the UK. It is not legally required, but if you do not file it, HMRC may still show you as “UK resident” for a long time.
That matters for:
Tax refunds. If you overpaid UK income tax in the year you left, the P85 starts the repayment calculation.
PAYE codes. If you still get UK income, like a pension or rental income, a wrong PAYE code can take too much tax at source.
HMRC enquiries. If your residency status is not closed off, HMRC can ask questions about later years. File the P85 and close the loop.
Most people do not know the P85 exists. It is a one-page form on the HMRC website. File it in the tax year you leave. How to file the P85 form with HMRC when leaving the UK explains what it covers, when to send it, and what happens after you do.
Error 6: Thinking the move alone does the job
This is the biggest mistake. People move to the UAE, set up a company, get a visa, open a bank account, and think that is enough to stop UK tax.
It is not, if you have not broken UK tax residency properly.
UK residency depends on the SRT, not on where you live or where your bank account sits. A UK national in Dubai with a UAE visa, a UAE company, and a UAE salary can still be UK tax resident if they spend too many days in the UK, keep too many UK ties, or fail the automatic overseas test.
We have seen people live in Dubai for two years and believe they were non-UK resident. Then HMRC wrote to them and said they failed the SRT each year. The bill was large. It covered two years of UK tax on worldwide income.
The move creates the conditions for non-UK residency. The SRT decides whether you actually achieved it. When UK tax liability legally ends after you move explains how that decision works and why the date on your boarding pass is not enough.
How we help
UK exit planning is not something to do the week before you move. It should start at least six months before departure. You should do it before the company structure is fixed, before the UAE visa is applied for, and before any exit tax charge is locked in.
The UK exit tax compliance service covers the SRT position, the exit tax calculation, and the departure timing together. Nothing should surprise you after you land.
Frequently asked questions
Does leaving the UK automatically mean I stop paying UK tax?
No. You stop paying UK tax once you are no longer UK tax resident under the SRT. That depends on your day count, your UK ties, and how you exit. Simply being in the UAE does not cut UK residency on its own.
What is the cost if I get exit tax wrong?
It varies by asset value and gain. On a company worth £500,000 with a low acquisition cost, the exit tax bill could be between £115,000 and £140,000 depending on whether BADR applies. On an investment portfolio with large unrealised gains, it could be more.
Can I fix a bad UK exit after the fact?
Partially. If you return to the UK within 5 years, exit tax on certain assets can be unwound. But UK tax charged for years when you were deemed UK resident cannot be reversed without a successful SRT argument, which is hard after the fact.
Do I still pay National Insurance after leaving?
UK NI stops for most employees once they leave UK employment. If you are self-employed or running a UK company, the position is more complex. Class 2 voluntary contributions are worth paying to protect your State Pension record.
How do I know if I have broken UK residency correctly?
Work through the SRT automatic tests first. If you do not meet an automatic test, go to the sufficient ties test. Do this for each tax year after you leave, not just the first one.