UK Tax Exit: SRT Checklist for Cayman Movers

• Automatic overseas: fewer than 16 UK days can be enough for automatic non-residence if you were UK resident in one or more of the previous 3 tax years; a different 46-day threshold can apply if you were not UK resident in any of the previous 3 tax years.
• Automatic UK: 183 or more UK days in a tax year is an automatic UK-residence trigger.
• Sufficient ties: between the automatic tests, your residence position depends on UK ties and day-count bands.
• UK ties: family tie (spouse/minor children in UK), accommodation tie (available UK property), work tie (40+ days UK work), 90-day tie (spent 90+ days in UK in either of previous 2 years), country tie (UK is your main country).
• Do not use one headline threshold as your whole plan. Map the HMRC tests before booking regular UK travel, keeping UK accommodation, or agreeing UK workdays.

The ties test in detail

The sufficient-ties test is where many Cayman movers need close advice because it combines day counts with prior UK residence and continuing UK connections. The table below is a planning screen, not a substitute for HMRC's full guidance or professional review.

• A 'day' in the UK means being present at midnight. Days of arrival and departure may not count under certain conditions.
• Keep UK travel well below the relevant band if your facts are close to the line, especially where family, accommodation, workdays, or a 90-day tie remain.
• Record the evidence behind each tie: leases or sale documents, family location, work calendars, travel logs, boarding passes, and advisor notes.

Split-year treatment

GOV.UK says the tax year is usually split into resident and non-resident parts only if split-year conditions are met. This matters for movers leaving during a UK tax year, but it should not be treated as automatic just because you moved to Cayman.

• Model the leaving year before departure because workdays, accommodation, family movements, and timing of income can all affect the analysis.
• Do not assume all post-departure income escapes UK tax. UK-source income, UK workdays, pensions, rental income, and gains on UK property can still need UK review.
• If you live abroad for less than a full tax year before returning to the UK, GOV.UK warns that you will not get split-year treatment.
• Plan how your advisor will report residence and split-year positions through Self Assessment and the SA109 residence pages where required.

What to map before you leave

A UK-Cayman move usually needs a written tax-exit file before bank accounts, payroll, property, pension, ISA, or investment decisions start changing. Use this as the agenda for a UK-qualified tax advisor rather than a self-diagnosis.

• Before a Cayman employer starts payroll, align the UK leaving date, final UK payroll, P45/P60 records, and any UK workdays after departure.
• Before opening Cayman bank or investment accounts, keep a source-of-funds file that matches your UK tax records and any future Cayman bank requests.

Temporary non-residence trap

If you leave the UK and return within the temporary non-residence window, some gains or income realised while away can be brought back into UK tax when you return. HMRC's 2025 to 2026 helpsheet frames this as an introduction and points taxpayers to advice where facts are uncertain, which is usually the right posture for Cayman movers who keep UK assets or expect a 2- to 5-year posting.

• Applies if you were UK resident for 4 of the 7 tax years before departure AND return to UK residence within 5 years.
• Asset sales, company distributions, and other income or gains during the Cayman period may need temporary non-residence review before action is taken.
• Do not sell assets, reorganise companies, or extract value simply because you are physically outside the UK; ask how the return plan changes the outcome.
• If Cayman may be temporary, build the UK-return scenario into the first advice memo rather than waiting until you move back.

Pensions, ISAs, and National Insurance

UK financial products do not disappear when you move to Cayman, but tax, contribution, reporting, and access questions become fact-specific. GOV.UK says people living abroad may be taxed on UK pensions by the UK and may also need treaty or relief analysis depending on residence. GOV.UK's ISA guidance says non-UK residents generally cannot continue paying into an ISA after moving abroad unless a Crown employee exception applies.

• State Pension: voluntary National Insurance may help protect your record, but class eligibility and rates change. Check HMRC/DWP guidance before paying.
• Private pensions: ask how UK provider payments, withholding, Self Assessment, treaty relief, and Cayman residence interact before drawing income.
• ISAs: tell the ISA provider when you stop being UK resident, check whether existing holdings can remain open, and do not assume new subscriptions are allowed after non-residence.
• Premium Bonds and other UK products have product-specific residence, tax, and access rules; confirm the current NS&I/HMRC position before relying on them.
• UK property: if you keep UK property, rental income remains a UK-tax topic and may involve the Non-Resident Landlord Scheme.
• QROPS and pension transfers are specialist advice items. Do not transfer a pension because Cayman has no local income tax.

Practical exit planning

A clean UK tax exit usually benefits from planning before departure, then disciplined records during the first Cayman year. The aim is to make the residence position, UK-source-income treatment, and evidence trail explainable if HMRC, a bank, lender, or advisor asks later.

• Hire a UK tax advisor who specializes in non-residence and international moves. Not a general accountant.
• Sever ties methodically: property availability, family, work, accommodation, day counts, and evidence can all matter under the SRT.
• Keep a day count diary from your departure date. Track every day spent in the UK meticulously.
• Keep a first-year evidence file: flight records, calendars, employment contract, lease or property documents, family move dates, school dates, bank statements, and professional advice notes.
• Agree how Self Assessment and SA109 reporting will be handled if UK-source income, split-year treatment, or non-residence reporting applies.
• Coordinate UK tax, Cayman immigration, banking, property, pension, and investment advice before the move creates avoidable mismatches.

Trust note

Last updated June 2026. This guide is written for relocation planning and should be verified with licensed Cayman professionals for legal, tax, immigration, medical, insurance, or financial decisions.

Reference points: HMRC — Statutory Residence Test, GOV.UK — UK residence and foreign income, GOV.UK — Tax on UK income if you live abroad, GOV.UK — Rental income if you live abroad, HMRC — SA109 residence and foreign income/gains pages, HMRC — Temporary non-residents and Capital Gains Tax, GOV.UK — Individual Savings Accounts if you move abroad, GOV.UK — Tax on pensions when you live abroad, GOV.UK — National Insurance abroad.