UK Tax Guide for UAE Movers

The UK to UAE move is one of the most tax-efficient transitions in the world for high earners - if you get the timing right. The UK has a 45% top rate, the UAE has zero personal income tax. The gap is enormous, and HMRC has well-defined rules about when you stop being on the hook for UK income tax.

This guide covers the mechanics. It's decision support, not regulated advice. For your specific situation, work with a UK tax adviser - the cost is minimal compared to getting the timing wrong.

The headline numbers (2026/27)

The Statutory Residence Test (SRT)

Whether HMRC treats you as UK tax-resident in a given tax year is decided by the Statutory Residence Test. The SRT is mechanical - once you know your day count and your ties, the answer is determined.

The test runs in three stages:

1. Automatic non-residence - if you spent fewer than 16 days in the UK in the tax year (46 if you weren't UK-resident in any of the previous three years), you're automatically non-resident. Done.
2. Automatic residence - if you spent 183+ days in the UK in the tax year, you're automatically UK-resident.
3. Sufficient ties test - if neither of the above applies, count your UK ties (family, accommodation, work, 90-day, country) and check the day-count thresholds.

The day-count thresholds for the sufficient ties test scale with your prior residence status. Roughly: if you were UK-resident in any of the previous three tax years, the bar to becoming non-resident is higher.

Counting UK days

A UK day is any day you're present in the UK at midnight. The "deeming rule" can pull in days you were present-but-not-at-midnight if you have substantial UK connections. Practical implications:

• Flying out before midnight on day X → day X is not counted.
• Late flights mean you sleep on the aeroplane and don't trigger a UK day. People genuinely plan around this.
• Transit days in the UK can be excluded if you don't engage in any UK activity outside the airport.

Split-year treatment - the key to lower exit tax

By default, you're either UK-resident for a whole tax year or not - there's no halfway house. Split-year treatment is the exception that lets you pay UK tax only on income earned before the split date in the year you leave.

There are 8 split-year cases. For UK-to-UAE movers, the most common are:

• Case 1: Starting full-time work overseas. Most relevant if you have a UAE job offer and start work overseas in the year you leave.
• Case 4: Your only home in the UK ceases. Relevant if you sell your UK home or stop being able to use it as a home.
• Case 5: Starting overseas part-time work.

If Case 1 applies and you start UAE employment on, say, 1 September, your UK tax exposure stops on roughly that date - you don't owe UK tax on the UAE salary you earn from then on. Without split-year, you'd be UK-resident for the whole tax year and your UAE salary would technically be UK-taxable (subject to remittance / double-tax-treaty relief).

P85 - the form to file when you leave

The P85 is HMRC's "I'm leaving the UK to live abroad" form. It tells HMRC to:

• Stop deducting UK tax from your existing UK employment (if you had one)
• Issue any tax refund due
• Update your residence status in their system

File P85 as soon as you leave the UK. You don't need a formal employment tax-code change first; HMRC will work it out.

1. When to file

   Within 3 months of leaving

   Online via gov.uk. You can also post it but online is faster.

2. What you need

   10-15 minutes

   Your NI number, your last UK employer's PAYE reference, the date you left the UK, your new overseas address.

3. What happens next

   6-12 weeks

   HMRC processes the form, may issue a refund of overpaid tax for the part-year, and updates your record.

SA109 - the residence supplement

If you're claiming split-year treatment (or any other non-resident treatment for the year), you file the SA109 as part of your Self Assessment return for that year. It's not optional - without SA109, HMRC can't apply split-year.

The SA109 captures:

• Which split-year case you're claiming under
• Your day counts in the UK for the relevant year and the previous three
• Your UK ties (family, accommodation, work, 90-day, country)
• Whether you're claiming the remittance basis (rare for UK-to-UAE - you become non-domiciled, not non-resident, and the remittance basis applies differently)

Optimal departure window

If you have flexibility on your move date, the timing matters. Three principles:

1. Closer to 6 April reduces UK exposure. If you leave in May, you have eleven months of the tax year not in the UK - most of your UAE income is shielded. If you leave in February, the opposite.
2. Case 1 needs full-time work overseas. Don't leave the UAE within the first 6 months or you may break Case 1's "minimum 12 months overseas work" requirement. If your UAE role ends prematurely, the split-year claim can fail retroactively.
3. Avoid days back in the UK after departure. If you leave in October but spend December back in the UK over Christmas (which counts as UK days), you risk failing the sufficient-ties test. The Double Leap Planner gives you a specific window.

What about UK property?

Three scenarios, three different tax treatments:

• Selling before you leave: Capital Gains Tax may apply. Principal Private Residence relief usually covers your main home; second properties or buy-to-lets may have CGT exposure. Use the Double Leap Planner to see the implications for your situation.
• Keeping it and renting out: rental income remains UK-source income and is UK-taxable, regardless of your residence status. You need to register with the Non-Resident Landlord (NRL) scheme. The letting agent will withhold tax at 20% unless you have NRL approval.
• Keeping it empty / for visits: this is a UK tie under the SRT (the accommodation tie). It can flip you back into residence in years where you spend significant days in the UK.

Pensions and ISAs in brief

This is a deep topic - see the dedicated Pensions & ISAs guide for detail. Headlines:

• Workplace pension: contributions stop when employment stops. The pot stays where it is. You can usually still access it from age 55 (rising to 57 in 2028) per UK rules.
• SIPP: you can usually keep it. Some platforms restrict contributions for non-residents - check before you go.
• ISA: you can keep existing ISAs, but you cannot contribute to them once you're non-resident. The tax-free wrapper continues for UK tax purposes; however, the UAE doesn't recognise ISA wrapping, so any sales while you're UAE-resident may have local treatment (currently moot - UAE has no personal income tax).
• State Pension: NI contributions made while in the UAE can be paid voluntarily (Class 2 or Class 3) to keep your state pension qualifying years building. Worth doing - even modest voluntary contributions have very high effective return.

HMRC will probably ask...

Here are the questions HMRC most often asks UK-to-UAE movers, and how to answer them clearly.

Why are you leaving the UK?

Direct answer: full-time employment / business setup overseas, with a stated start date and address. Avoid vague phrasing - vague triggers further questions.

What ties to the UK do you retain?

List them honestly: any UK property (occupied / let / empty), UK family (spouse / minor children resident in the UK count as the family tie), UK employment (none if you've fully resigned), UK days planned. Honesty is cheaper than HMRC investigation.

When did your UAE employment / business start?

The exact date determines split-year case applicability. Have your UAE contract or trade licence handy.

Are you claiming split-year treatment?

Yes (probably). If yes, name the case (Case 1, Case 4, etc.) and the date you became non-resident.

What this guide doesn't cover

• Inheritance tax (still applies to UK-domiciled individuals for 7 years after leaving - talk to an adviser if your estate is significant)
• Crypto / unusual asset disposals (treatment varies - get specialist advice)
• Self-employment in the UK (different mechanics; see HMRC's leaving-the-UK guidance)
• Family members on different residence statuses (split families have their own complications)

For all of these, the right move is a one-off consultation with a UK tax adviser before you finalise your departure date. £400-£600 typically; saves multiples in misapplied rules.

Next steps

• Run the Double Leap Planner to get a personalised exit timeline with split-year case picks and an HMRC question list pre-filled with your details.
• Read the UAE Banking Guide - open your UAE bank account before you leave.
• File your P85 once you've left, and book your year-of-departure SA109 with an adviser.