You must tell HM Revenue and Customs (HMRC) if you are either:
leaving the UK to live abroad permanently
going to work abroad full-time for at least one full tax year
The tax year runs from 6 April to 5 April the next year.
You do not need to tell HMRC if you are leaving the UK for holidays or business trips.
Tell HMRC Before you Leave
Fill in form P85 (external link) and send it to HMRC. Include Parts 2 and 3 of your P45 form (external link) - get these from your employer (or Jobcentre Plus (external link) if you have been claiming Jobseeker’s Allowance).
Send a Self Assessment tax return (external link) instead if you usually complete one, for example if you are self-employed.
Send a P85 and a tax return if you are going to be working full-time for a UK-based employer for at least one full tax year.
Sending your Tax Return
You cannot use HMRC’s online services to tell them you are leaving the UK. Instead, you need to:
send your tax return by post (external link)
get help (external link) from a professional, such as an accountant
Complete the ‘residence’ section in your tax return (form SA109 if you’re sending it by post).
You will be charged a penalty if you do not meet the deadline - it is earlier if you are sending your return by post (31 October).
What Happens Next
If you are non-resident (external link), you do not pay UK tax on income or gains you get outside the UK. You may be non-resident the day after you leave the UK - this depends on your situation and how ‘split year treatment (external link)’ applies to you.
You need to let other people know if you are moving or retiring abroad (external link), for example your local council so you stop paying Council Tax.
If you are Owed a Refund
HMRC will work out if you are owed a refund for the tax year you are leaving the UK.
If you have UK Income
You may need to pay UK tax even if you are non-resident (external link), for example if you have income from renting a property in the UK.
The UK has ‘double taxation agreements’ with many countries to make sure you do not pay tax twice (external link).
You might want to carry on paying National Insurance while you are abroad (external link) if you’re:
planning to come back to the UK
going to claim the State Pension later
You cannot claim back any National Insurance when you leave.
Anything you have paid might count towards benefits in the country you are moving to if it has a social security agreement (external link) with the UK.
You can claim certain UK benefits abroad (external link), such as Jobseeker’s Allowance if you are looking for work in a European Economic Area (EEA) country.
If your Circumstances Change
Contact HMRC (external link) if your circumstances change when you are abroad - you move house or your marital status changes, for example. You will need your National Insurance number.
You also need to tell HMRC if you come back to live in the UK (external link).
Visiting the UK
You can visit the UK without becoming resident again - depending on why you visit and how long you visit for.
If you work full-time abroad, you can usually visit the UK for up to 90 days - as long as you work no more than 30 of these days.
You might become a UK resident again if you start new activities in the UK after you have left, for example you get involved in a business or buy a new property.
Check your residence status (external link) if you are not sure how your activities in the UK affect your status.