This guide summarises public HMRC, GOV.UK and UAE Federal Tax Authority guidance at the time of writing. It is general information, not tax advice. CorpWise handles the UAE side (company, visa, Emirates ID, banking). For your UK position, speak to a UK-qualified tax adviser before you leave.
The short answer
- Your UK tax residence is decided by HMRC's Statutory Residence Test, not by your UAE visa or where your company is registered.
- If you leave part-way through a tax year, split-year treatment may apply automatically if you meet one of the cases.
- Tell HMRC you have left: form P85 if you do not file Self Assessment, or the residence pages (SA109) of your tax return if you do.
- If you return to the UK within five years, certain gains and some company distributions received while abroad can be taxed in the year you come back.
- A UK-incorporated company stays UK tax resident even if you move. Moving yourself does not move your UK company.
The Statutory Residence Test
GOV.UK sets out three layers. You work through them in order.
Automatic overseas tests
You are usually non-UK resident for a tax year if either applies:
- you spent fewer than 16 days in the UK, or fewer than 46 days if you were not UK resident in any of the 3 previous tax years
- you worked abroad full-time (averaging at least 35 hours a week) and spent fewer than 91 days in the UK, of which no more than 30 were spent working
Automatic UK tests
You are usually UK resident if any of these applies:
- you spent 183 or more days in the UK in the tax year
- your only home was in the UK for 91 days or more in a row, and you visited or stayed in it for at least 30 days
- you worked full-time in the UK for any period of 365 days and at least one day of that period was in the tax year
The sufficient ties test
If neither set of automatic tests settles it, HMRC looks at how many days you spent in the UK alongside your UK ties, such as family, accommodation and work. The more ties you keep, the fewer UK days you can spend before you are treated as UK resident. Most founders who keep a UK home, family or UK work fall into this test, so count your days carefully. Full detail is in HMRC's RDR3 guidance.
Leaving part-way through the tax year: split-year treatment
The UK tax year runs from 6 April to 5 April. If you leave mid-year, the year may be split into a UK part, taxed as a UK resident, and an overseas part, taxed as a non-resident. One of the cases HMRC lists is ceasing to have a UK home: you must have been UK resident in the previous year, become non-resident the following year, stop having any UK home, spend fewer than 16 days in the UK in the rest of that year, and settle in your new country within six months. HMRC applies split-year treatment automatically if you meet a case; it is not an election.
Telling HMRC you have left
- If you do not file Self Assessment: fill in form P85, with parts 2 and 3 of your P45 if you have one.
- If you file Self Assessment: complete the residence section (SA109) of your tax return. GOV.UK notes this cannot be done through HMRC's online services and must be sent by post.
You also need to tell HMRC if you come back to live in the UK.
The five-year rule: temporary non-residence
This is the rule that catches founders out. Under HMRC's temporary non-residence rules, if you were solely UK resident for at least 4 of the 7 tax years before you left, and you return within 5 years, certain gains made while you were away are treated as arising in the year you come back and taxed then.
For owners of close companies (most owner-managed businesses), HMRC's HS278 helpsheet says dividends paid out of trade profits that arise during the period of non-residence are not taxable on return, but other distributions paid during that period can be. If you plan to sell a business or take a large distribution after moving, get advice on timing first.
Your UK company does not move with you
A company incorporated in the UK is UK tax resident by incorporation, so it stays within UK corporation tax wherever its director lives. Many founders keep the UK company for UK clients and set up a UAE company for new business. How work, contracts and management are split between the two needs careful structuring, so agree it with your UK adviser before you trade through the UAE company.
The UK–UAE double tax treaty
The UK and UAE signed a double taxation convention on 12 April 2016, in force from 25 December 2016. Where you could be treated as resident in both countries, the treaty's tie-breaker rules decide which country has taxing rights. A UAE Tax Residency Certificate, issued by the Federal Tax Authority, is the usual evidence of UAE residence.
What changes on the UAE side
The UAE does not tax individuals' salary or employment income. UAE businesses pay corporate tax: 0% on taxable income up to AED 375,000 and 9% above that, according to the Federal Tax Authority. Small Business Relief lets eligible resident businesses with revenue of AED 3 million or less be treated as having no taxable income, for tax periods ending on or before 31 December 2026. Free zone companies can access a 0% rate on qualifying income only if they meet the Qualifying Free Zone Person conditions, which include keeping audited financial statements. Every UAE company must still register for corporate tax.
National Insurance and your State Pension
GOV.UK states the rules on voluntary National Insurance for people who live or work abroad changed from 6 April 2026. If you want to protect your State Pension record, check your eligibility on GOV.UK before you leave.
The order to do it in
- Agree your UK exit plan and departure date with a UK tax adviser.
- Set up your UAE company and trade licence.
- Get your residence visa and Emirates ID.
- Open UAE bank accounts and give up or rent out your UK home if that is part of your plan.
- File P85 or SA109 and keep a day count from the day you leave.
Our step-by-step guide to moving to Dubai from the UK covers the UAE side in detail. If you have significant capital or your company pays tax in the UAE, see our Golden Visa guide for UK business owners.
How CorpWise helps
We set up the UAE company, residence visa, Emirates ID and bank accounts, and we work alongside your UK adviser so the timing lines up. Free zone setup starts from AED 12,500 and mainland from AED 35,000. Talk to an advisor.
