NOT financial advice - seek advice from a professional for your specific situation

    TaxKilnUK tax guidance
    TaxKilnUK tax guidance

    Divorce + tax cluster

    Divorce + Tax — FA 2023 Reform + Pension + Property + Cohabitation Gap

    Divorce involves multiple tax-intensive decisions taken under emotional pressure with high-stakes consequences. The FA 2023 reform extended CGT spouse exemption from end of separation tax year to 3 tax years following separation (plus extension for property transfers under court order) — a major positive change many practitioners haven't fully absorbed. Pension splitting orders (PSO under Welfare Reform and Pensions Act 1999) + property settlement + Marriage Allowance termination + cohabitation tax gap all create complexity. Cohabitation breakups face structural disadvantage — no spouse exemption + no PSO + no IHT spouse exemption + 'common-law marriage' is a myth.

    Below is the framework: CGT spouse exemption under FA 2023 reform (3-year window + court-ordered extension); pension splitting orders (PSO vs PAO vs Offsetting comparison); property settlement + Mesher/Martin orders + s.225B PPR mechanics; Marriage Allowance termination + 4-year backdating; IHT implications (April 2025 LTR replaces domicile; £325k spouse exemption cap pre-April 2025; LTR IHT tail 3-10 years post-departure); cohabitation tax gap (no spouse exemption framework; TOLATA constructive trust alternative); business shares on divorce + BADR rate changes + April 2026 BR/APR £1m cap (effective family-business ceiling ~£2.5m on second death); 8 detailed scenarios.

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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 →

    The framework

    CGT spouse exemption — FA 2023 reform →

    Pre-FA 2023: spouse exemption (no gain/no loss on transfer) available only during 'living together' periods under TCGA 1992 s.288; ceased at separation. From 6 April 2023 (FA 2023): extended for 3 tax years following separation year + extension beyond 3-year window for court-ordered property transfers where transferring spouse continues to occupy principal home.

    Pension splitting orders — PSO + PAO + Offsetting →

    Three mechanisms: Pension Sharing Order (PSO) under Welfare Reform and Pensions Act 1999 ss.27-51 transfers % of one spouse's pension to other; tax-free transfer. Pension Attachment Order (PAO) directs % of pension income at retirement. Pension Offsetting: spouse retains pension intact + other assets offset for value. CETV (DC) + actuarial (DB) valuation.

    Property settlement + Mesher/Martin orders →

    PPR final-period 9 months (from FA 2020 reform — reduced from 18 months; unrelated to FA 2023). s.225B TCGA 1992 PPR extension for departing spouse who transfers interest to occupying spouse under court order. Mesher orders (deferred sale) vs s.225BA transfer mechanism disentangled. Martin orders: similar with different trigger conditions.

    Marriage Allowance termination →

    ITA 2007 ss.55A-55E (inserted by FA 2014). 10% Personal Allowance transfer between basic-rate spouses — terminates at end of tax year of formal divorce / civil partnership dissolution. 4-year backdating window continues retrospectively. HICBC household income recalculation post-divorce. Tax codes need updating (1257M → 1257L).

    IHT implications + April 2025 LTR + £325k cap →

    Pre-April 2025: spouse exemption capped at £325k where transferee non-UK-domiciled (unless IHTA 1984 s.267ZA election); domicile-based scope. From 6 April 2025: domicile replaced by Long-Term Resident (LTR) test (10 of previous 20 years UK-resident); residence-based cap mechanics applied to LTR-vs-non-LTR transfers. LTR IHT tail 3-10 years post-departure.

    Cohabitation tax gap — THE big editorial point →

    NO spouse exemption for unmarried couples regardless of relationship duration. TCGA 1992 s.288 living-together test does NOT apply to cohabitees. NO Pension Sharing Order. NO IHT spouse exemption. NO Marriage Allowance. TOLATA 1996 + constructive trust + proprietary estoppel are LEGAL alternatives, NOT tax advantages. Common-law-marriage myth EXPLICIT rebuttal.

    Business shares on divorce →

    Transfer of family company shares between separating spouses caught by FA 2023 extended window. BADR rate trajectory: 10% (pre-April 2025) → 14% (from 6 April 2025) → 18% (from 6 April 2026). April 2026 BR/APR £1m statutory cap per individual (effective family-business ceiling ~£2.5m on second death combining NRB + RNRB + spouse-transferable). Family business divorces may need structuring pre-April 2026.

    Scenarios — 8 specific cases →

    Short-marriage straightforward. Long-marriage with family home + Mesher order. Pension-heavy NHS-consultant + teacher PSO. High-net-worth £10m cross-border. Family business £3m turnover (BADR + valuation). International UK + Spain divorce. Cohabitation breakup £5m joint assets, 15-year relationship (TOLATA + constructive trust). Late-life divorce nearing retirement.

    Anti-snake-oil patterns common in this corridor

    Pattern: Divorce tax specialist £1,500+ retainer

    Reality: For most divorces, family lawyer + qualified accountant at standard rates covers tax structuring.

    Pattern: Pension on divorce specialist £800

    Reality: Pension valuation requires actuary (specialist) BUT tax structuring around PSO is mechanical.

    Pattern: FA 2023 spouse exemption maximisation specialist £600

    Reality: Extended window is statutory; mechanics are clear. 'Maximisation' sells nothing.

    Pattern: Tax-free divorce structure £2k

    Reality: No such thing. UK divorce governed by statute + family law; structuring is constrained.

    Pattern: Cohabitation breakup tax specialist £1k

    Reality: Cohabitation has no spouse exemption framework. Constructive trust + proprietary estoppel via TOLATA are legal mechanisms not tax mechanisms.

    Pattern: Mesher order tax optimisation £900

    Reality: Mesher mechanics are family-law-driven; tax position downstream + mechanical.

    Pattern: Pre-divorce asset structuring £3k

    Reality: Pre-divorce gifts subject to PET rules. 'Structuring' within statute limited. Legitimate professional advice for high-net-worth but markup over standard rates often unjustified.

    Free + regulated-body resources

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