Forms to send when you leave or arrive
Moving abroad or coming to the UK? Answer a few yes/no questions for your own checklist of forms to send, who they go to and when.
Your answer
Tell us if you're leaving or arriving to see your checklist.
About this calculator
For people moving abroad or coming to live in the UK who want to know which forms to send, who to, and by when. It covers the 2026/27 tax year.
What happens to your answers
We don’t keep them. Your answers go to our server to do the sums and aren’t stored or logged. If you copy a link to your answers, they’re in the link itself, so only share it with people you trust.
How it’s worked out
Leaving: if you don't fill in a tax return, you tell HMRC on a P85. If you do, you tell them on the residence pages (SA109) of your return. Renting out a UK home, selling UK property, a student loan, Child Benefit, your State Pension and voluntary National Insurance each have their own form or call.
Arriving: a starter checklist for your new employer, a National Insurance number, and Self Assessment if you have income or gains from abroad. After 10 tax years away you can claim relief on foreign income and gains, and on pay for work days abroad, on your return.
We list each item with its official page, and the dated deadlines for 2026/27.
Worked example
You have 6 things to do when you leave the UK, 3 with a fixed date: the first is 5 October 2027.
Leaving the UK in 2026/27 · no tax return yet
| Your move | Leaving the UK |
|---|---|
| P45: Get your P45 from your employer when you leave, and send parts 2 and 3 with your P85. Send to: Your employer. | When you leave your job |
| P85: Tell HMRC you're leaving the UK, and claim back any tax overpaid on your pay this year. Send to: HMRC (online, or by post once you've gone). | Soon after you leave |
| Student loan: update your details: Tell the Student Loans Company you're leaving for more than 3 months, so they set your repayments on your overseas income. Send to: Student Loans Company. | Before you go |
| NRL1i: Apply to get your UK rent without basic rate tax taken off (the non-resident landlord scheme). Send to: HMRC. | Before the rent starts |
| Register for Self Assessment: Register for Self Assessment, because rent from a UK home is reported on a tax return. Send to: HMRC. | By 5 October 2027 |
| CF83: Apply to pay voluntary National Insurance (Class 3) while abroad, to keep building your State Pension. Send to: HMRC National Insurance. | Once you have left |
| Things to do | 6 |
Based on GOV.UK guidance for leaving and coming to the UK, and HMRC's forms and manuals, checked October 2026.
Questions people ask
Can I tell HMRC I'm leaving online?
With a P85, yes, once you've left. HMRC's free online tax return doesn't take the residence pages, so you send a paper return by 31 October, or file online through software (or through us) by 31 January.
Do I need a tax return when I come to the UK?
Not if you're an employee with no other income to report. You do if you have income or gains from abroad, or want to claim relief on them.
Does a P85 get my tax back?
It can. HMRC uses it to check the tax taken from your pay this year, and may refund some if you leave partway through.
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