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    TaxKilnUK tax guidance
    TaxKilnUK tax guidance

    Moving Abroad — UK Tax When Leaving the UK

    Becoming non-UK-resident doesn't free you from UK tax automatically. The UK operates a source-based regime — your UK rental income, UK employment income from UK workdays, UK pensions (in some cases), and UK assets stay within HMRC's reach. The framework below is what determines what's caught and what isn't.

    Statutory Residence Test under Schedule 45 Finance Act 2013 is the foundation. Around it sits the procedural mechanics (P85, NRL1, NT code, SA109), the per-income-type treatment, the capital gains regime (NRCGT + temporary non-residence), the National Insurance + State Pension position, the April 2025 IHT reform, and the returning-UK mechanics. Everything here is statute-grounded. Most leavers can self-serve through this without paying £2,000+ for specialist guidance.

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    Guidance, not advice. We explain the rules, we don't assess your situation. Always seek financial or tax advice from your accountant, or contact HMRC. Read our editorial scope →

    Lifecycle navigation

    Five lifecycle stages from planning to returning. Each stage links to the deep-dive pages that matter at that point.

    Planning your move

    Before you leave: understand the SRT framework, know which UK income streams remain in scope, plan timing of disposals or remittances, understand the IHT tail.

    The departure year

    Procedural mechanics in the tax year you leave: P85, final SA with SA109 split-year, NRL1 if you're a landlord, NT code for UK pension, UTR continuation.

    First five tax years abroad

    The temporary non-residence window. Annual SA filing where required, voluntary Class 2/3 NI, watch for s.10A catch-up if you return early, UK source income continues to be UK-taxable.

    After five full tax years

    Permanent non-residence territory. Temporary non-residence rule no longer applies. UK source income continues to be UK-taxable; capital gains on non-UK assets are out of scope. IHT tail continues depending on length of UK residence pre-departure.

    Returning to the UK

    SRT applies on return — split-year arrival cases 4-8 may apply. The 5-year temporary non-residence catch-up may apply if return within 5 full tax years. FIG regime may be available if 10+ years non-resident. Foreign property + UK property mechanics on disposal post-return.

    The framework — six pillars

    The UK moving-abroad framework rests on six pillars. Each pillar is statute-grounded and applies regardless of which destination country you move to (country-specific mechanics overlay on top — country corridor pages for USA, Spain, Ireland, Australia + NZ, UAE + Gulf states ship in later sprints).

    Statutory Residence Test (SRT) →

    Determines whether you're UK-resident in any tax year. Sequential test: Automatic Overseas Tests → Automatic UK Tests → Sufficient Ties Test. Schedule 45 Finance Act 2013.

    Pre-departure mechanics →

    P85 (refund claim), final SA + SA109 split-year, NRL1 if landlord, NT code for UK pension, UTR retention. All self-serve via gov.uk.

    UK source income while non-resident →

    Disregarded income mechanism (s.811 ITA 2007) shelters most UK investment income; UK rental, employment workdays, government pensions continue to be UK-taxable.

    Capital gains + temporary non-residence →

    NRCGT residential (since April 2015) + commercial (since April 2019); 60-day reporting; s.10A TCGA 1992 catch-up if return within 5 full tax years.

    National Insurance + State Pension →

    Class 2 voluntary £3.50/week (2025/26; abolished for new applicants from April 2026); Class 3 £17.75/week; State Pension claimable from anywhere but frozen in ~150 countries.

    April 2025 IHT reform + Long-Term Resident test →

    Domicile replaced by residence-based test for IHT from 6 April 2025. LTR = UK-resident 10 of previous 20 tax years. Post-departure IHT tail 3-10 years depending on total UK residence.

    Anti-snake-oil — common bad-advice patterns + the statute that disproves each

    The UK emigration tax market is dominated by 'specialist expat tax advice from £2,000+' cold-pitch firms. Most leavers' positions are unambiguous within the SRT framework and the procedural mechanics are self-serve via gov.uk. Common bad-advice patterns + the statute that disproves each:

    Pattern: Pay £500+ for P85 filing

    Reality: P85 is a 10-minute form filed online via gov.uk. Available free. Used by HMRC to issue PAYE refunds in the year of departure. Self-serve. No specialist needed.

    Pattern: Move abroad for 1 tax year + sell UK shares CGT-free

    Reality: Temporary non-residence (TCGA 1992 s.10A): if you return within 5 full tax years, gains realised during non-residence wash back into the year of return and are taxed at UK CGT rates applicable to that year.

    Pattern: Transfer your UK pension to QROPS to avoid UK tax

    Reality: 9 March 2017 Overseas Transfer Charge: 25% of transfer value unless tightly-defined exemption applies. EEA exemption removed 30 October 2024 Autumn Budget. UK tax continuing-liability period 5 tax years post-transfer per PTM112000. Usually destructive for retail-tier pension values.

    Pattern: Become non-dom + pay no UK tax

    Reality: Non-dom status abolished from 6 April 2025 (FA 2025). Replaced by 4-year FIG (Foreign Income + Gains) regime — available only to people non-UK-resident for 10+ tax years. Long-Term Resident IHT test (10 of 20 years) replaces domicile concept.

    See full anti-snake-oil compendium across this cluster's sub-topic pages, particularly /moving-abroad/returning-to-uk.

    Free + regulated-body resources

    Country corridors

    Country-specific deep dives layering destination-country tax law on top of the UK framework.

    Business owner sub-cluster

    Emigration downloads

    Free letter templates and checklists for UK leavers. No signup, no email capture.

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