How to Reduce CGT on a UK Property Disposal: 2026/27 Landlord Guide

Ten distinct levers reduce CGT on a UK property disposal in 2026/27. This guide surveys each lever at the right depth to route the reader to the specialist page for full mechanics, and sets out the decision table for which lever fits which fact pattern. The page is intentionally a router, not a depth page: the specialist sibling pages own the load-bearing detail.

For the underlying CGT framework (rates, computation, AEA), see the CGT on UK property complete guide. For the rates picture specifically, see the 2026/27 CGT rates page. For the step-by-step computation walkthrough, see the BTL CGT calculation guide. For deferral routes (which push the tax point into the future rather than reducing the gain), see the CGT deferral mechanics guide.

Where the reduction levers fit

The ten levers split into three structural categories:

• Shrink the gain at the point of disposal: Private Residence Relief (s.222), the £3,000 annual exempt amount, capital loss offset (s.16), base-cost capitalisation (s.38), Lettings Relief in narrow shared-occupation cases (s.223B).
• Shift the gain to a lower rate band: the s.58 spouse-share transfer (moves part of the gain into the spouse's basic-rate band at 18% rather than 24%), tax-year straddling (uses two AEAs and potentially two basic-rate-band fills).
• Defer the gain into the future: incorporation relief (s.162), EIS Sch 5B deferral, s.165 or s.260 holdover on a gift. These do not reduce the gain; they push the tax point forward. Covered in depth in the deferral mechanics guide and surveyed at the bottom of this page.

The right plan usually combines a shrink lever (PRR + AEA + loss offset) with a shift lever (spouse transfer + year straddle) and only reaches for a defer lever if the residual gain is still material.

Use the £3,000 annual exempt amount and stack across spouses

Each individual has a £3,000 AEA for 2026/27 (down from £6,000 in 2023/24 and £12,300 pre-2023/24). Trusts get £1,500. Companies get none. The AEA is deducted from total chargeable gains for the tax year before any tax is computed. Unused AEA cannot be carried forward.

For couples, jointly held property uses both AEAs against the same disposal (effectively £6,000 sheltered). A single-owner property only uses the owner's AEA unless the partner's share is moved in by a pre-sale section 58 transfer. The AEA mechanics in depth are in the £3,000 AEA guide.

Maximise Private Residence Relief (s.222)

Section 222 TCGA 1992 exempts the proportion of the gain attributable to periods when the property was the owner's only or main residence. The final 9 months of ownership always qualify under s.223(1) once the property has at some point been a main residence. Deemed-occupation periods under s.223(3) Conditions A and B can extend the qualifying period (3-year any-reason absence; 4-year work-elsewhere-in-UK; any-length work-abroad), subject to bookend requirements (must be main residence before and after the absence).

The PRR lever applies only where the property was at some point the owner's main home. Pure investment BTL (never lived in) does not qualify. The specialist depth on PRR for landlords is in the PRR for landlords guide; the joint-ownership mechanics are in the joint-ownership PRR guide.

Pre-sale spouse transfer at the lower rate band (s.58)

Section 58 TCGA 1992 treats inter-spouse and civil partner transfers as no-gain-no-loss disposals. The receiving spouse takes over the original base cost proportionally, and is taxed on their share of the future gain at their own marginal rate. Where the receiving spouse is a basic-rate taxpayer with significant unused basic-rate band, their share of the gain falls at 18% rather than 24%, a 6-percentage-point saving.

On a £100,000 chargeable gain transferred 50/50 to a spouse with full basic-rate band capacity, the transferred share saves up to £3,000 (£50,000 of gain at the 6-percentage-point rate gap). Combined with the additional £3,000 AEA the receiving spouse brings into play, the total saving can reach £3,720 on a £100,000 gain. The transfer must be a genuine transfer of beneficial ownership, ideally evidenced by deed of trust. Our spouse transfer guide covers the s.58 mechanics in depth.

Capitalise the right costs (s.38)

Section 38 TCGA 1992 sets out the allowable base-cost categories. Most landlords already capture purchase costs (price, SDLT, legal, survey) but miss capital improvement expenditure during ownership. The improvement-versus-repair line is the routine point of enquiry:

• Improvements (capital): extensions, loft conversions, structural alterations adding new features, substantial upgrades that take the property beyond its original specification.
• Repairs (revenue): like-for-like replacement of worn components, maintenance, painting and decorating, replacing a single broken window pane, replacing a worn kitchen with an equivalent kitchen.

The line between the two is fact-specific. Replacing single-glazing with double-glazing was historically argued both ways but is now generally treated as a repair on the basis that double-glazing is the current normal standard. Keep contemporaneous invoices, descriptions, and where useful photographs and plans. The full step-by-step including allowable acquisition and disposal cost categories is in the CGT calculation walkthrough.

Offset capital losses against the gain (s.16)

Section 16 TCGA 1992 establishes the loss computation: losses are computed in the same way as gains and offset against gains in the same tax year. Current-year losses are compulsorily set against current-year gains before the £3,000 AEA applies. Brought-forward losses (where the underlying loss claim was made within the four-year window of TMA 1970 s.43) are used only to the extent the net current-year gain after AEA is still positive.

The asymmetry can be a poor outcome where a current-year loss is wasted against gains that the AEA would have sheltered anyway. Where the seller has discretion over timing, splitting disposals across tax years can preserve the AEA and keep the loss for a year with a larger gain. Capital losses can be set against gains on any chargeable asset class (other property, shares, business assets), with no requirement to match property-loss to property-gain. The four-year claim window and the offset mechanics in depth are in the capital losses guide.

Lettings Relief: the post-2020 shared-occupation gateway (s.223B)

Section 223B TCGA 1992 (inserted by Finance Act 2020 with effect from 6 April 2020) is the current Lettings Relief provision. The pre-2020 framework (which gave Lettings Relief up to £40,000 for the let portion of a former main residence even without shared occupation) was repealed and replaced.

The post-2020 rule: Lettings Relief applies only where the owner was in shared occupation with the tenant during the let period. The maximum remains the lower of (a) £40,000, (b) PRR already given, (c) the chargeable gain on the let portion. For disposals on or after 6 April 2020, the post-2020 rules apply to the entire letting period (HMRC manual CG64710 confirms the cut-off applies to the disposal date, not the letting date), so a 2018-2026 letting on a 2026 disposal does NOT get partial pre-2020 relief.

The practical takeaway: most accidental landlords (moved out, let to tenants, kept their distance) do not qualify for Lettings Relief in 2026/27. Live-in landlords with lodgers (Rent-a-Room style arrangements) do qualify. The specialist depth is in the Lettings Relief specialist page.

BADR for property: trading status only, with FHL post-abolition closure

Business Asset Disposal Relief (BADR) at 14% from 6 April 2025 (and rising to 18% from 6 April 2026 per Finance Act 2025) is restricted to disposals of qualifying business assets where the owner has a personal trading-status involvement. Standard residential investment letting does not qualify (the same trade-versus-investment test that excludes BTL from rollover relief under s.152). Property development, where trading status can be evidenced, can qualify. Pre-6-April-2025 Furnished Holiday Lettings could qualify at the former 10% rate; FHL was abolished by Finance Act 2025 Sch 5 with effect from 6 April 2025 and anti-forestalling rules between 6 March 2024 and 5 April 2025 closed pre-abolition routes.

For 2026/27, the realistic BADR-on-property population is owner-occupier traders disposing of trading-business premises and property developers with evidenced trading status. The standard BTL landlord is excluded. The Wave 6 FHL grandfathered claims guide covers the post-abolition position; our rollover relief guide sets out the trade-versus-investment line that BADR shares.

Time the disposal across tax years and around the income cycle

The disposal date for CGT is the completion date, not the exchange date. Timing matters in two ways:

• Tax-year straddle: exchanging in March and completing in April moves the disposal into the new tax year, giving a fresh £3,000 AEA and a fresh basic-rate-band fill. The 60-day CGT payment also moves with the disposal date. The buyer's agreement is needed; this is usually not material commercially if the property is vacant and standard.
• Income-cycle alignment: if the seller's other income is lower in a particular year (sabbatical, retirement, parental leave), timing the disposal for that year keeps more of the gain in the basic-rate band at 18%. The £50,270 basic-rate threshold for 2026/27 is the relevant boundary.

For larger gains, conditional contracts or instalment payment structures can spread the CGT charge across tax years, but the disposal date for tax purposes is still the contract or completion date, not the cash-receipt date.

Incorporation relief as a deferral lever (s.162)

Section 162 TCGA 1992 incorporation relief is a deferral rather than a reduction lever, but for active portfolio landlords meeting the going-concern test (HMRC SP D12 + Ramsay v HMRC [2013]) it can defer the entire chargeable gain on the property transfer into the company. The deferred gain attaches to the shares issued in exchange for the business, and crystallises when the shareholder later disposes of the shares.

The trade-off: post-incorporation, future property disposals are inside the Corporation Tax framework on chargeable gains at the company's overall CT rate (most property investment SPVs at the main 25% rate as Close Investment-Holding Companies under section 18N CTA 2010). SDLT applies to the property transfer (with the partnership-relief route under Sch 15 FA 2003 available where the business was a partnership). The full incorporation sequence is in the BTL limited company complete guide and the incorporation CGT calculation page. The deferral framework as a whole is in the CGT deferral mechanics guide.

Companies, Corporation Tax and chargeable gains: not CGT

Property held in a limited company is outside the individual CGT framework entirely. The company computes a chargeable gain on disposal (similar mechanics: consideration less base cost less allowable costs and reliefs) and pays Corporation Tax on that gain at the company's overall CT rate. Companies do NOT pay CGT and the 18% / 24% individual rates do not apply.

For 2026/27: corporation tax is 19% small profits rate on profits up to £50,000, 25% main rate on profits above £250,000, with marginal relief between. Most property investment SPVs are Close Investment-Holding Companies under section 18N CTA 2010 (the CIHC definition catches most companies whose business is making investments, including residential rental) and are excluded from the small profits rate, paying at the main 25% rate on the full chargeable gain. The £3,000 AEA does not apply to companies. Indexation allowance (frozen at December 2017) may still apply to a company's pre-January-2018 base cost.

Disposing of the company itself by share sale is taxed on the shareholder under CGT at the personal rates (18% / 24%), unless BADR applies (which it does not for property investment SPVs because the company is not trading). Our BTL limited company guide sets out the CIHC mechanics and the asset-sale-versus-share-sale comparison.

Decision table: which lever for which fact pattern

Fact pattern	Primary lever	Secondary lever	Specialist page
Former main residence sold	PRR (s.222) on residence period + final 9 months	Spouse transfer for residual let-period gain	PRR for landlords
Single BTL sold by individual (never lived in)	Capitalise s.38 base costs + use £3,000 AEA	Spouse transfer to use second AEA + basic-rate band	CGT calculation walkthrough
Portfolio sale (multiple properties)	Stagger across tax years for multiple AEAs	Consider s.162 incorporation if active business	Deferral mechanics
BTL sold at a loss	Claim loss within 4 years (TMA 1970 s.43)	Carry forward against future gains on any asset class	Capital losses
Live-in landlord with lodgers	PRR on whole property (HMRC view) + Rent-a-Room income relief	Lettings Relief (s.223B) up to £40k cap if let portion attracts gain	Lettings Relief specialist
Higher-rate-spouse + basic-rate-spouse couple	Pre-sale s.58 transfer to shift gain to basic-rate band	Stack two £3,000 AEAs against joint disposal	Spouse transfer guide
Gift to adult child or trust	Section 165 holdover (gift of business asset) or s.260 (gift to trust, watch s.169B block)	GROB trap on retained occupation; PET status	Gifting property guide
Active portfolio landlord considering company	Section 162 incorporation relief	Partnership SDLT relief route (Sch 15 FA 2003) if business was a partnership	BTL LtdCo guide

Worked portfolio example: three-property portfolio

A higher-rate-taxpayer landlord with three BTL properties decides to wind down ownership. The portfolio has accumulated material gains over 15 years. The seller's spouse is a basic-rate taxpayer with full unused basic-rate band capacity (£20,000 of unused band in 2026/27).

Property A: never the seller's home. £180,000 base cost, £290,000 expected sale price. Gain £110,000.

Property B: was the seller's home for 4 years out of 16 years of ownership. £120,000 base cost, £230,000 expected sale price. Gain £110,000.

Property C: never the seller's home. £200,000 base cost, £250,000 expected sale price. Gain £50,000.

Without planning, all three sold in the same tax year by the seller alone:

• Aggregate gain: £270,000
• Less single AEA: £267,000 taxable
• Less PRR on Property B (4/16 × £110,000): £27,500 exempt; £239,500 net taxable
• Less final-9-months PRR on Property B (9/192 × £110,000): £5,156 further exempt; £234,344 net taxable
• CGT at 24% (higher rate throughout): £56,243

With staggered planning across two tax years, half of Property A and a half-share of Property B pre-transferred to the spouse:

Year 1 (2026/27): Property A sold (jointly by then).

• Seller's share of gain: £55,000. Less £3,000 AEA: £52,000 at 24% = £12,480.
• Spouse's share of gain: £55,000. Less £3,000 AEA: £52,000. £20,000 in basic-rate band at 18% = £3,600. £32,000 in higher-rate band at 24% = £7,680. Total spouse CGT: £11,280.
• Year 1 total: £23,760.

Year 2 (2027/28): Property B (jointly held) and Property C sold (still seller-only).

• Property B: gain £110,000. PRR £27,500 + final-9-months £5,156. Net taxable £77,344. Spouse half-share: £38,672. Seller half-share: £38,672.
• Seller's Property C share: £50,000 gain. Aggregate seller chargeable: £88,672. Less £3,000 AEA: £85,672 at 24% = £20,561.
• Spouse's Property B half-share: £38,672. Less £3,000 AEA: £35,672. Assume spouse has £20,000 unused basic-rate band again: £20,000 at 18% = £3,600. £15,672 at 24% = £3,761. Total spouse CGT: £7,361.
• Year 2 total: £27,922.

Two-year planned total: £51,682. Saving versus the unplanned single-year scenario: £4,561, plus the cash-flow benefit of paying half the CGT one year later.

The arithmetic is sensitive to the spouse's income profile and to the buyer's flexibility on completion dates. The planning works because three levers stack: the AEA across two years and two people (four £3,000s in total against £270,000 of gain), the spouse's basic-rate band on two disposals, and the PRR proportion on Property B. Pre-sale spouse transfer of Property B itself before sale needs to be a genuine transfer, ideally with the deed of trust dated well before the sale negotiation.

Future-rate context for planning

For 2026/27 the residential property CGT rates are 18% and 24%. The property income tax rates announced at the Autumn Budget 2025 (22% basic / 42% higher / 47% additional rate from April 2027) were enacted in Finance Act 2026 (Royal Assent 18 March 2026). Those rates apply to property income, not to CGT: the 18% / 24% CGT rates on residential property are not affected by the 2027 income-tax change and remain in force through 2027/28 on current law. Any longer-term CGT-rate change would require a separate Budget announcement. Detail is in the 2026/27 CGT rates page and the CGT 2027 rate-changes hedge page.

Decisions taken now on a 2026/27 or 2027/28 disposal should rely on the current-law position; longer-horizon decisions need to factor in rate uncertainty.

Sources and further reading

• TCGA 1992 s.16: computation of losses
• TCGA 1992 s.38: allowable expenditure on acquisition and disposal
• TCGA 1992 s.58: inter-spouse no-gain-no-loss transfers
• TCGA 1992 s.162: incorporation relief
• TCGA 1992 s.222: Private Residence Relief
• TCGA 1992 s.223B: post-2020 Lettings Relief (inserted by FA 2020)
• TMA 1970 s.43: four-year general time limit for tax claims
• CTA 2010 s.18N: Close Investment-Holding Company definition
• gov.uk/capital-gains-tax/rates: HMRC consumer guidance on rates and AEA
• gov.uk/capital-gains-tax/losses: HMRC consumer guidance on losses
• gov.uk/tax-sell-home/let-out-part-of-home: shared-occupation Lettings Relief
• CGT on UK property complete guide
• CGT rates on residential property 2026/27
• £3,000 annual exempt amount
• BTL CGT calculation walkthrough
• Capital losses on property disposal
• PRR for landlords
• Lettings Relief specialist guide
• CGT on inter-spouse property transfers (s.58)
• Gifting property to family members
• CGT deferral mechanics guide
• 60-day CGT payment deadlines
• Rollover relief for property landlords
• FHL post-2025 grandfathered claims
• BTL limited company complete guide
• CGT calculation on incorporation
• What a specialist property accountant handles