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    TaxKilnUK tax guidance
    TaxKilnUK tax guidance

    Divorce + tax → Business shares on divorce

    Family Business Shares on Divorce — BADR + April 2026 BR/APR £1m Cap

    Transfer of family-company shares between separating spouses falls within the FA 2023 extended s.58 window (3 tax years post-separation, or under court order indefinitely). No CGT on transfer — receiving spouse inherits the original base cost. On subsequent sale to a third party, BADR rates apply on qualifying disposals: 10% (pre-April 2025); 14% from 6 April 2025; 18% from 6 April 2026. For IHT, April 2026 introduces a £1m statutory BR cap per individual at 100% rate, tapering to 50% relief above. The effective family-business ceiling on second death (combining transferred allowances) is approximately £2.5m. Family-business divorces concluded pre-April 2026 escape the BR cap on those shares. Share valuation often requires forensic accountant input.

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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 →

    In plain English

    Family-company share transfers on divorce involve three distinct tax regimes: CGT on transfer, BADR rate on eventual sale, and IHT on death. CGT ON TRANSFER: FA 2023 reform of TCGA 1992 s.58 extends the no-gain-no-loss window to 3 tax years post-separation (standard) or indefinitely under court order. Family-company share transfers within the window are CGT-free at the point of transfer. The receiving spouse inherits the original base cost — gain crystallises on eventual sale to a third party. BADR RATE TRAJECTORY: BADR (Business Asset Disposal Relief, formerly Entrepreneurs' Relief) gives a reduced CGT rate on qualifying disposals up to a £1m lifetime cap per individual. Rate is changing: 10% pre-6 April 2025; 14% from 6 April 2025; 18% from 6 April 2026. For divorcing couples: transferring spouse's BADR lifetime cap may have been substantially used during the marriage on prior disposals; receiving spouse starts with full £1m lifetime cap. This affects net-of-tax value calculations on settlement. IHT FROM APRIL 2026: Business Relief and Agricultural Property Relief jointly capped at £1m per individual at the 100% rate from 6 April 2026. Above £1m, relief tapers to 50%. For a family-business owner with shareholdings significantly above £1m, this creates real IHT exposure on death post-cap. EFFECTIVE FAMILY-BUSINESS CEILING ON SECOND DEATH: Combining first-spouse BR allowance + spouse exemption transfer + NRB + RNRB + transferable allowances, the effective ceiling on second-death IHT exposure for a family business is approximately £2.5m. Specifically: each spouse has £1m BR cap (£2m combined); NRB £325k + RNRB £175k (£500k combined). On second death, the surviving spouse can claim the deceased spouse's unused BR cap + NRB + RNRB if transferred — pushing the practical ceiling for family-business succession on second death to approximately £2.5m. FOR FAMILY-BUSINESS DIVORCES: Timing relative to 6 April 2026 matters. Divorces concluded pre-April 2026: full BR uncapped on existing family-company shares. Divorces concluded post-April 2026: £1m cap applies. Some family-business divorces may benefit from accelerated completion pre-cap. SHARE VALUATION: Family-company shares are notoriously difficult to value. Public-company comparison + earnings multiples + asset-value methods all apply. Forensic accountant input typically essential. Court typically orders single jointly-instructed expert. HMRC has a Shares and Assets Valuation team that adjudicates contested valuations.

    How it works

    Share transfer between separating spouses

    FA 2023 reform of TCGA 1992 s.58: no-gain-no-loss treatment applies for 3 tax years following the year of separation (s.58(1C)) or indefinitely under court order (s.58(1D)). Family-company share transfers within the window: no CGT at point of transfer; receiving spouse inherits original base cost. Note: family-company share TRANSFER is in scope. Direct ENCASHMENT or sale during separation does NOT use s.58 — that is a normal disposal at market value with CGT consequences for the disposing spouse.

    BADR rate changes

    BADR applies to qualifying disposals (typically: 5%+ shareholding in a personal trading company for the qualifying period; lifetime £1m cap per individual). Rate trajectory: - Pre-6 April 2025: 10% on qualifying disposals - 6 April 2025 to 5 April 2026: 14% - 6 April 2026 onwards: 18% For divorcing couples: receiving spouse inherits base cost but NOT the transferor's BADR usage. Receiving spouse has their own £1m lifetime cap (subject to qualification conditions on subsequent disposal). Net-of-tax value on settlement depends on the rate at which the receiving spouse expects to dispose.

    April 2026 BR/APR £1m cap mechanics

    From 6 April 2026: BR + APR jointly capped at £1m per individual at the 100% rate. Above £1m, the rate of relief drops to 50% (giving an effective IHT charge of 20% on the excess — half of the 40% IHT rate). Mechanics: trading-company shares + qualifying farmland that previously got 100% relief now get 100% only up to £1m; above £1m, 50% relief. An estate of £3m of family-company shares: £1m at 100% relief + £2m at 50% relief = £1m + £1m = £2m exempt; £1m chargeable; £400k IHT.

    Effective family-business ceiling on second death (~£2.5m)

    Combining transferable allowances: spouse 1 dies leaving everything to spouse 2 — spouse exemption applies; spouse 2 inherits unused NRB + RNRB + (from April 2026) unused BR/APR cap from spouse 1. On second death: spouse 2 has own £325k NRB + £175k RNRB + £1m BR cap, plus transferred £325k NRB + £175k RNRB + £1m BR cap (subject to qualification). Total: £325k + £175k + £1m + £325k + £175k + £1m = approximately £3m if all allowances fully transferred and qualifying conditions met. In practice, RNRB tapering above £2m estate + other complications reduce this; £2.5m is a working approximation for the effective family-business ceiling on second death. Divorce breaks this transferability path — ex-spouses cannot transfer allowances on death. Each ex-spouse's estate is calculated on standalone basis with their own allowances only.

    Family-business divorce timing relative to April 2026

    Pre-April 2026 divorce + transfer: no s.58 issue (FA 2023 window); BADR available on subsequent sale at then-current rate; BR uncapped on death. Post-April 2026 divorce + transfer: same s.58 treatment; BADR at 18%; BR capped at £1m per individual. For very-large family businesses (>£10m): the £1m BR cap reduces effective IHT shelter substantially. Pre-divorce structuring options include: gifting shares to children pre-divorce (within spouse-exemption window with PET clock starting); use of family investment company / trust structures; share class reorganisation. Professional advice strongly recommended for these complex structures.

    Share valuation in divorce

    Family-company shares typically valued by: maintainable-earnings method (P/E multiple on adjusted post-tax earnings); discounted-cash-flow method; asset-value method; comparable-transactions method. Different methods can give materially different valuations. Minority discounts: a minority shareholder typically discounted 30-50% from pro-rata enterprise value. On divorce, where one spouse is selling minority interest back to the other (now majority), discount may apply. Court typically orders single joint expert valuation (SJE) in financial-remedy proceedings. HMRC has a Shares and Assets Valuation team that adjudicates contested valuations for tax purposes — separate from family-court SJE.

    Who this applies to + key conditions

    Statute + manual references

    Primary: TCGA 1992 s.58 (spouse no-gain-no-loss, extended by FA 2023); TCGA 1992 s.169H-s.169R (Business Asset Disposal Relief); Finance Act 2024 / Finance Act 2025 (BADR rate changes); Finance Act 2025 (April 2026 BR / APR £1m cap).

    Related: IHTA 1984 s.103-114 — Business Relief framework; IHTA 1984 s.115-124 — Agricultural Property Relief; Finance Act 2024 — BADR rate from 10% to 14% (April 2025); Finance Act 2025 — BADR rate to 18% (April 2026) + BR/APR £1m cap; TCGA 1992 s.58(1C) + s.58(1D) — FA 2023 extension

    HMRC manual: CG64000+ (BADR / Entrepreneurs' Relief); IHTM47000+ (BR / APR); CG22000+ (spouse transfers)

    Common mistakes + traps

    Worked example

    Robert + Sophie, separated October 2025, family company (Robert sole shareholder, valuation £3m, base cost £100, BADR-qualifying)

    Sophie was not a shareholder during marriage but contributed substantially to the business (operations + marketing roles). Financial-remedy proceedings: court orders Robert to transfer 30% of company shares to Sophie under court order (s.58(1D) extension applies). Sophie subsequently sells her 30% back to Robert in 2028 for £1m.

    1. October 2025 — separation. Tax year 2025/26.
    2. Court order December 2026: Robert transfers 30% of shares to Sophie. Pre-court order valuation £3m × 30% = £900k transferred value. Transfer within FA 2023 s.58(1D) window (court order, no 3-year limit). NO CGT on transfer. Sophie inherits 30% × £100 = £30 base cost on her shares.
    3. Sophie's 2028 sale back to Robert at £1m: Sophie's gain £1m - £30 = £999,970. Sophie is a non-employee minority shareholder — needs to check BADR qualification carefully (must be officer / employee in qualifying period; must hold 5%+ shares 2 years pre-sale; must be personal trading company in qualifying period).
    4. If Sophie qualifies for BADR (assume yes — she was non-exec director in qualifying period): £1m at BADR rate. At 2028 sale (post-6 April 2026): rate is 18%. CGT: £180,000 (less £3k AEA). Net: £820k.
    5. If Sophie does not qualify for BADR: £1m at standard 24% higher-rate: £240,000 CGT. Net: £760k.
    6. Robert pays £1m cash to Sophie for the buy-back. Robert's CGT base cost on the repurchased 30%: £1m (cash paid). Robert's overall position: 100% ownership at base cost £100 + £1m on the 30% repurchased = £1m base cost combined (approximately).
    7. If Robert subsequently sells the whole company: his BADR cap (£1m lifetime) applied to his original holding; the repurchased 30% costs £1m and gain on it on subsequent sale is calculated by reference to £1m base cost.

    Outcome: Court-ordered share transfer achieves CGT-neutral transfer under s.58(1D). Sophie's eventual BADR-qualifying sale at 2028 rate of 18% gives £820k net. Critical to confirm BADR qualification before settlement structuring. If divorce concluded pre-April 2026, BADR rate would have been 14% — £140k CGT vs £180k. £40k timing difference. For very large transfers, this timing matters.

    How this connects to the rest of the framework

    CGT spouse exemption (FA 2023) →

    Family-company share transfers use the same FA 2023 s.58 framework as other asset transfers.

    IHT implications + LTR →

    April 2026 BR/APR cap interacts with divorce loss of spouse exemption — ex-spouses cannot transfer allowances on death.

    Scenarios + anti-charlatan →

    Scenario set includes £3m turnover family business divorce with BADR + valuation considerations.

    /tax-reliefs/business-asset-disposal-relief →

    Full BADR guide — rate changes + qualifying conditions.

    /start-up-founder →

    Founder lifecycle guide — family-business succession + share-structure planning context.

    Frequently asked questions

    What happens if I miss the Self Assessment deadline?+
    The Self Assessment deadline is 31 January (online filing) for the previous tax year. Miss it and HMRC apply an automatic £100 penalty. Beyond that: £10 per day from 3 months late (capped at £900), 5% of tax due at 6 months late, and another 5% at 12 months late, under Schedule 55 of the Taxes Management Act 1970. If you have a genuine reason (serious illness, bereavement, technical issue with HMRC's systems) you can appeal with evidence; HMRC accepts reasonable excuse appeals in most genuine cases.
    Do I need an accountant or can I file Self Assessment myself?+
    Legally you can file Self Assessment yourself via gov.uk for free, most simple sole-trader returns (single income source, basic expenses) are realistic to self-file. An accountant adds real value when: your trading profit is above £40,000 (extraction-strategy decisions matter), you have multiple income streams (PAYE + self-employment + property + dividends), you've crossed the £90,000 VAT threshold, you're considering incorporation, or you have an HMRC enquiry. Expect to pay £400-£1,500/year for a typical sole-trader accountant; the cost is itself a deductible expense.
    How do payments on account work?+
    When your Self Assessment tax bill exceeds £1,000 for the first time, HMRC requires payments on account toward NEXT year's tax. Half the current bill is due 31 January (alongside the current bill); the other half is due 31 July. So your first January after crossing the threshold can hit with a double-bill: last year's balance + first payment on account. Adjust via Form SA303 if you expect next year's income to drop substantially. Payments on account don't apply if more than 80% of your tax is collected via PAYE.
    Can the receiving spouse use BADR on subsequent sale?+
    Yes — subject to standard BADR qualification on the receiving spouse's holding (5%+, officer / employee, 2-year qualifying period). The receiving spouse's BADR lifetime cap is separate from the transferor's used cap — they have their own £1m.
    Does the April 2026 BR cap apply to all family businesses?+
    Yes — applies to all qualifying BR property (trading company shares, AIM shares, qualifying farmland). £1m cap at 100% relief per individual; 50% relief above. No grandfathering for pre-April-2026 acquisitions.
    Is it worth structuring a family-business divorce to conclude before April 2026?+
    For very-large family businesses (>£10m) the BR cap is significant. Acceleration purely for tax savings may not be appropriate in the family-law context (decree timing follows substantive family-law process). But if the divorce is concluding around the April 2026 boundary, BR-cap implications should be quantified.
    What about cohabitee family-business co-founders?+
    Cohabitees have no s.58 — share transfer between unmarried partners is full-market-value CGT disposal. See cohabitation tax gap page.

    Free + regulated-body resources

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