UK Capital Allowances Full Expensing: 2026/27

UK Capital Allowances Full Expensing 2026/27 Guide

Q: What is Full Expensing (FE)?

Full Expensing : 100% first-year tax deduction on qualifying capital expenditure. Introduced April 2023 + made permanent in Spring Budget 2024. Statutory basis: Section 40A-40C CAA 2001 + Finance Act 2024. Mechanics : company spends £100k on qualifying plant + machinery in current accounting period → deducts full £100k from taxable profits in same period. Vs Annual Investment Allowance (AIA) : AIA also gives 100% deduction up to £1m cap. FE has NO cap but stricter qualifying conditions. Effective tax saving : 25% CT main rate × £100k FE = £25k tax saved. Plus accelerated cash flow vs Writing-Down Allowance (WDA 18% over many years). Who qualifies : companies only (limited companies + LLPs treated as companies) . Sole traders + partnerships + individuals NOT eligible for FE - use AIA instead. Asset categories : Main pool : 100% FE rate. Office equipment, computers, machinery, plant. Special rate pool : 50% first-year allowance (introduced April 2023). Integral features, thermal insulation, long-life assets (25+ year expected life), cars (most). Excluded : cars (zero-emission cars qualify for separate FYA), second-hand assets (FE strictly for NEW assets only), assets for leasing to third parties (with exceptions). Permanent nature : removed previous 3-year sunset clause. Now part of permanent CT framework. Major business investment incentive.

Q: What is Annual Investment Allowance (AIA) and how does it differ?

AIA : 100% first-year allowance on qualifying plant + machinery up to £1,000,000 per year. Statutory basis: Sections 38A-38D CAA 2001. Permanent £1m cap : confirmed permanent in Spring Budget 2023 (was temporary at this level since January 2019, multiple extensions). Key differences from Full Expensing : (1) Eligibility : AIA available to ALL business types (sole traders, partnerships, companies, LLPs). FE companies only. (2) Cap : AIA capped at £1m. FE uncapped. (3) Asset types : AIA covers main + special rate. FE main 100%, special rate 50% only. (4) New vs second-hand : AIA covers both. FE strictly new only. (5) Leasing : AIA generally available for assets used in own trade. FE has strict exclusions for assets leased to third parties. Strategic choice (for companies with both available) : Spend <£1m on qualifying assets : AIA + FE achieve same 100% deduction. Use AIA if mixing new + second-hand or main + special rate. Spend >£1m : AIA cap binds. FE applies to excess on new main-rate assets. Worked example - £2m new computer equipment: AIA £1m + FE £1m = full £2m deducted. Sole traders / partnerships : AIA only. £1m cap binding for larger businesses. Property businesses : rental businesses can use AIA on qualifying property fixtures. Connected companies : must share single AIA across group + connected entities (CTA 2010 Section 1138). FE has no equivalent sharing requirement.

Q: What capital allowances rates apply to different asset types in 2026/27?

Asset categorisation drives allowance rate . Main Pool (general plant + machinery) : FE 100% for new assets (companies). AIA 100% up to £1m cap (all businesses). WDA 18% reducing balance for amounts above limits. Special Rate Pool : integral features (heating, lighting, electrical, lifts, water systems), thermal insulation, long-life assets (25+ year expected life), cars with CO2 above 50g/km. 50% first-year allowance for new assets (companies). AIA 100% up to £1m cap (all businesses). WDA 6% reducing balance. Cars : Zero-emission cars : 100% first-year allowance (FYA). 50g/km or less : main pool 18% WDA. Above 50g/km : special rate pool 6% WDA. Used / pre-owned electric cars : WDA only (no FYA). Structures + Buildings Allowance (SBA) : 3% straight-line on commercial buildings (post-Oct 2018 expenditure). NOT FE-eligible. Research + Development Capital Allowance : 100% FYA on R&D-related capital expenditure (Section 437 CAA 2001). Discussed in R&D Tax Credit guide . Specific asset rules : integral features (HVAC, electrical, lifts) - 50% FE or 6% WDA. Thermal insulation - 50% FE. Long-life assets (25+ years) - 50% FE. Plant in residential dwellings - WDA only. Software : counts as plant + machinery typically. 100% FE or AIA eligible.

Q: Can sole traders use Full Expensing?

NO . Full Expensing is strictly for COMPANIES only (limited companies, LLPs treated as companies under CT). Statutory restriction: Section 40A(2) CAA 2001 confines FE to "qualifying company" = CT-paying entity. Sole traders + partnerships : use Annual Investment Allowance (AIA) £1m cap instead. AIA achieves same 100% deduction for spending up to £1m/year. Most small businesses don't exceed £1m capital expenditure annually, so AIA effectively equivalent. Mixed business + personal asset use : sole trader using asset partly for personal purposes must apportion. £30k van used 80% business = £24k qualifying for AIA. Personal portion not deductible. Convert sole trader to limited company for FE? : occasionally cost-effective for large capital investment plans. £5m+ planned investment over 1-2 years = FE access via Ltd Co. structure could save £100k+ vs sole trader's £1m AIA cap requiring spread across years. Trade-off: company admin (£2k+/year) + CT vs IT structure (potentially less tax-efficient for owners). Partnership + LLP nuance : traditional partnerships use AIA via individual partners' tax returns. LLPs typically treated as transparent for tax = partners use AIA. LLP elected for company taxation = could use FE (rare). Practical advice for sole traders : budget capital expenditure to fit £1m AIA window. Stage purchases across tax years if exceeding. For consistently high capex (£500k+/year), consider incorporation analysis.

Q: How does FE compare to Writing Down Allowance (WDA)?

WDA : Writing-Down Allowance = annual reducing-balance deduction. Statutory basis: Sections 56-67 CAA 2001. Rates 2026/27 : Main pool 18%; Special rate pool 6%. Mechanics : asset added to pool. Annual WDA = 18% (or 6%) of pool balance. Remaining balance carried forward + reduces each year. FE vs WDA comparison - £100k new machinery : FE Year 1 : £100k deducted. Tax saved 25% × £100k = £25,000. Cash flow benefit immediate. WDA Year 1 : £100k × 18% = £18k deduction. Tax saved 25% × £18k = £4,500. Year 2: £82k × 18% = £14,760. Year 3: £67,240 × 18% = £12,103. After 10 years, ~£15k still in pool. Time-value comparison : FE gets full deduction Year 1. WDA spreads over ~25+ years. Discount rate matters - at 5% real discount, FE NPV ~£25k saving; WDA NPV ~£17k saving. FE worth ~50% more in present value terms. When WDA still relevant : (a) AIA + FE both exhausted : excess capex above limits enters WDA pool. (b) Pre-FE assets : existing assets purchased before April 2023 stay in WDA pool. (c) Special rate pool excess : above £1m AIA + above 50% special rate FE goes to 6% WDA. (d) Used / second-hand assets : ineligible for FE, may be AIA-eligible up to cap then WDA. Strategic CapEx planning : time large purchases to maximise FE + AIA across multiple accounting periods if appropriate. New assets dramatically more valuable for FE eligibility.

Q: What are the second-hand asset restrictions for FE?

FE strict on new-only requirement . Statutory basis: Section 40C CAA 2001 + HMRC Capital Allowances Manual CA23156. Definition of "new" : asset must NOT have been previously used in any trade. Examples that DO qualify (new) : (a) Brand new machinery purchased from manufacturer / distributor. (b) Bespoke equipment commissioned for the company's specific use. (c) Stock items purchased from manufacturer's stock (even if not first sale). Examples that DON'T qualify (second-hand) : (a) Demo equipment from manufacturer / dealer used for demonstration. (b) Ex-lease vehicles : cars + machinery returned from previous lessee. (c) Refurbished assets : even extensive refurbishment doesn't restore "new" status. (d) Stock with previous customer use : returned + resold goods. HMRC enforcement : claims for FE on second-hand assets challenged via Schedule 36 FA 2008 information notices. Common HMRC enquiry topic. Schedule 24 inaccuracy penalties for over-claims. Documentation : maintain manufacturer invoices + commissioning records + delivery notes. Avoid ambiguity about "new" status. AIA alternative for second-hand : if second-hand asset blocks FE, AIA may still apply (£1m cap). Same 100% rate but different eligibility test - AIA covers both new + second-hand. Strategic implication : for major capital spending, source new assets to capture FE benefits. Cost difference between new + second-hand often offset by tax benefit. Worked example : £200k new vs £150k second-hand machine. New: AIA £200k (or FE) = £50k tax saved. Net cost £150k. Second-hand: AIA £150k = £37.5k tax saved. Net cost £112.5k. Net cost similar but new asset typically longer useful life.

Q: What is the 50% special rate FE?

50% First-Year Allowance for special rate assets : introduced April 2023 alongside main rate FE. Statutory basis: Section 40B CAA 2001. Mechanics : 50% of qualifying special rate capital expenditure deducted in Year 1. Remaining 50% added to special rate pool, attracting 6% WDA in future years. Qualifying special rate assets : (a) Integral features : heating + ventilation systems (HVAC), electrical wiring + lighting, lifts + escalators, water systems, cold-water systems. Section 33A CAA 2001. (b) Thermal insulation : added to existing buildings. (c) Long-life assets : expected useful life 25+ years (e.g., aircraft hulls, ships, specialised industrial machinery). (d) Cars with CO2 above 50g/km . Worked example - £100k integral features installation : FE 50% : Year 1 deduction £50k. Tax saved 25% × £50k = £12,500. Remaining £50k added to special rate pool. AIA alternative : full £100k deducted in Year 1 (within £1m cap). Tax saved £25k. AIA wins £12,500. FE 50% vs AIA : AIA always better for assets within £1m cap. FE 50% relevant when AIA cap already exhausted. Stacking strategy : prioritise AIA for special rate assets (gets 100%). Use main pool FE for excess main rate assets. Worked stacking - £1.5m investment : £800k main rate + £700k special rate. Optimal: AIA £700k special rate (full deduction). AIA remaining £300k main rate. FE £500k remaining main rate. Total Year 1 deduction = £700k + £300k + £500k = £1.5m. Tax saved £375k. Without optimal stacking : AIA £800k main + £200k special. Special rate £500k at FE 50% = £250k. WDA on remaining £250k. Year 1 total: £800k + £200k + £250k = £1.25m. Tax saved £312.5k. Difference £62.5k.

Q: What happens when I dispose of an asset with FE claim?

Balancing charge on disposal : if asset disposed of for proceeds + previously claimed FE, balancing charge added to taxable profit. Statutory basis: Section 40D CAA 2001. Calculation : balancing charge = LOWER of: (a) sale proceeds; (b) original FE-relieved amount. Worked example - £100k machine sold for £40k after 3 years : Original FE : £100k claimed Year 1. Tax saved £25k. Disposal Year 3 : £40k balancing charge added to Year 3 profit. Tax owed on £40k × 25% = £10k. Net FE benefit : £25k saved - £10k clawback = £15k net benefit. Worked example sold for £120k (unusual but possible for appreciating equipment): balancing charge capped at £100k (the FE-relieved amount). Tax owed £25k. Full clawback - net FE benefit zero, but time-value benefit from earlier deduction. For lower disposal proceeds <£100k : only proceeds amount is balancing charge. Earlier example £40k disposal = £40k charge. Vs traditional WDA : under WDA, similar balancing-allowance mechanic but smoother (capped at remaining WDA pool balance). FE more aggressive clawback risk for high-value disposals. Strategic implications : Don't FE assets you plan to sell soon : balancing charge clawback eliminates benefit. FE assets with long retention : maximum benefit. Real-estate-fixed assets (HVAC, lifts) ideal. Asset write-offs : scrap / write-off generally £0 disposal proceeds = no balancing charge. Insurance proceeds : count as disposal proceeds. Theft / damage with insurance payout triggers balancing charge. Plan asset insurance to align with FE strategy.

Q: How does FE interact with Corporation Tax marginal relief?

Corporation Tax 2026/27 : 19% small profits rate (under £50k profit), 25% main rate (above £250k), marginal relief in £50k-£250k band (effective marginal rate ~26.5%). FE impact on CT calculation : FE deduction reduces TAXABLE PROFIT. Lower profit → potentially crosses thresholds → CT band changes. Worked example - £300k pre-FE profit + £100k FE deduction : Without FE: £300k × 25% = £75k CT. With FE: £200k profit × ~26.5% effective marginal = £53k CT. Saving £22k from FE on £100k investment. Effective FE benefit higher in marginal band : each £ of FE deduction in marginal £50k-£250k profit zone saves ~26.5p tax. At main rate above £250k: 25p. Below £50k: only 19p. Strategic timing : time large FE-eligible spending to year when profit projected in marginal band for maximum benefit. Carry-forward of losses : if FE deduction creates / increases trading loss, loss carries forward (or back 1 year under CTA 2010 Section 37). Group company implications : connected companies must share £50k small profits limit + £250k main rate threshold (Section 18-29 CTA 2010). Effective bands narrower if multiple group companies. FE across group analysed at group level for marginal relief. Associated companies : from April 2023 reform, single overseas associated company brings UK company into shared bands. Plan FE across group entities accordingly. Loss-making companies : FE creates / extends loss. May surrender via R&D Tax Credit if R&D-related, or carry forward against future profits.

Q: When should I use FE vs AIA vs WDA?

Decision matrix : FE preferred when : (a) Limited company with new main pool capex above £1m AIA cap; (b) Asset is genuinely NEW + UK-purchased / imported; (c) Long-term retention planned (5+ years to minimise balancing charge); (d) Currently in 25% main CT band where deduction worth most; (e) Multiple years of high capex planned (no AIA cap binding). AIA preferred when : (a) Sole trader / partnership (only option besides WDA); (b) Spending under £1m/year total; (c) Mix of new + second-hand assets needed; (d) Special rate assets within cap (AIA 100% vs FE 50%); (e) Connected companies sharing AIA cap efficiently. WDA only when : (a) AIA + FE both exhausted; (b) Excluded assets (cars main pool above 50g/km, used assets); (c) Existing assets in pool from pre-FE periods; (d) Buildings + structures (separate SBA 3%). Combined stacking for £2m+ capex with mix: Step 1 : AIA £1m on highest-value mix (often special rate assets get priority since FE only 50%). Step 2 : FE 100% on remaining new main pool. Step 3 : FE 50% on remaining new special rate. Step 4 : WDA on any second-hand assets or excess beyond above. Cash flow priority : FE + AIA both immediate 100% deduction. WDA spreads benefit over years. Generally FE/AIA preferred unless specific exclusion. Specialist accountant advice : capex over £500k warrants professional planning. Annual review of mix vs CT projections. Software (Xero, FreeAgent, Sage) handles allocation but doesn't optimise strategically.

Comprehensive UK Full Expensing capital allowances guide for 2026/27. Permanent 100% first-year allowance for new main pool plant + machinery (companies only). 50% special rate FE for integral features + long-life + thermal insulation. AIA £1,000,000 comparison + stacking strategy. WDA 18%/6% reducing balance for excluded / excess amounts. Second-hand asset restrictions + leasing exclusions. Balancing charges on disposal + clawback mechanics. CT marginal relief band optimisation (£50k-£250k profit). 12-FAQ. Statute - Capital Allowances Act 2001 Sections 38A-40D, Finance Act 2024.

Frequently asked questions

What is Full Expensing (FE)?

Full Expensing: 100% first-year tax deduction on qualifying capital expenditure. Introduced April 2023 + made permanent in Spring Budget 2024. Statutory basis: Section 40A-40C CAA 2001 + Finance Act 2024. Mechanics: company spends £100k on qualifying plant + machinery in current accounting period → deducts full £100k from taxable profits in same period. Vs Annual Investment Allowance (AIA): AIA also gives 100% deduction up to £1m cap. FE has NO cap but stricter qualifying conditions. Effective tax saving: 25% CT main rate × £100k FE = £25k tax saved. Plus accelerated cash flow vs Writing-Down Allowance (WDA 18% over many years). Who qualifies: companies only (limited companies + LLPs treated as companies). Sole traders + partnerships + individuals NOT eligible for FE - use AIA instead. Asset categories: Main pool: 100% FE rate. Office equipment, computers, machinery, plant. Special rate pool: 50% first-year allowance (introduced April 2023). Integral features, thermal insulation, long-life assets (25+ year expected life), cars (most). Excluded: cars (zero-emission cars qualify for separate FYA), second-hand assets (FE strictly for NEW assets only), assets for leasing to third parties (with exceptions). Permanent nature: removed previous 3-year sunset clause. Now part of permanent CT framework. Major business investment incentive.

What is Annual Investment Allowance (AIA) and how does it differ?

AIA: 100% first-year allowance on qualifying plant + machinery up to £1,000,000 per year. Statutory basis: Sections 38A-38D CAA 2001. Permanent £1m cap: confirmed permanent in Spring Budget 2023 (was temporary at this level since January 2019, multiple extensions). Key differences from Full Expensing: (1) Eligibility: AIA available to ALL business types (sole traders, partnerships, companies, LLPs). FE companies only. (2) Cap: AIA capped at £1m. FE uncapped. (3) Asset types: AIA covers main + special rate. FE main 100%, special rate 50% only. (4) New vs second-hand: AIA covers both. FE strictly new only. (5) Leasing: AIA generally available for assets used in own trade. FE has strict exclusions for assets leased to third parties. Strategic choice (for companies with both available): Spend <£1m on qualifying assets: AIA + FE achieve same 100% deduction. Use AIA if mixing new + second-hand or main + special rate. Spend >£1m: AIA cap binds. FE applies to excess on new main-rate assets. Worked example - £2m new computer equipment: AIA £1m + FE £1m = full £2m deducted. Sole traders / partnerships: AIA only. £1m cap binding for larger businesses. Property businesses: rental businesses can use AIA on qualifying property fixtures. Connected companies: must share single AIA across group + connected entities (CTA 2010 Section 1138). FE has no equivalent sharing requirement.

What capital allowances rates apply to different asset types in 2026/27?

Asset categorisation drives allowance rate. Main Pool (general plant + machinery): FE 100% for new assets (companies). AIA 100% up to £1m cap (all businesses). WDA 18% reducing balance for amounts above limits. Special Rate Pool: integral features (heating, lighting, electrical, lifts, water systems), thermal insulation, long-life assets (25+ year expected life), cars with CO2 above 50g/km. 50% first-year allowance for new assets (companies). AIA 100% up to £1m cap (all businesses). WDA 6% reducing balance. Cars: Zero-emission cars: 100% first-year allowance (FYA). 50g/km or less: main pool 18% WDA. Above 50g/km: special rate pool 6% WDA. Used / pre-owned electric cars: WDA only (no FYA). Structures + Buildings Allowance (SBA): 3% straight-line on commercial buildings (post-Oct 2018 expenditure). NOT FE-eligible. Research + Development Capital Allowance: 100% FYA on R&D-related capital expenditure (Section 437 CAA 2001). Discussed in R&D Tax Credit guide. Specific asset rules: integral features (HVAC, electrical, lifts) - 50% FE or 6% WDA. Thermal insulation - 50% FE. Long-life assets (25+ years) - 50% FE. Plant in residential dwellings - WDA only. Software: counts as plant + machinery typically. 100% FE or AIA eligible.

Can sole traders use Full Expensing?

NO. Full Expensing is strictly for COMPANIES only (limited companies, LLPs treated as companies under CT). Statutory restriction: Section 40A(2) CAA 2001 confines FE to "qualifying company" = CT-paying entity. Sole traders + partnerships: use Annual Investment Allowance (AIA) £1m cap instead. AIA achieves same 100% deduction for spending up to £1m/year. Most small businesses don't exceed £1m capital expenditure annually, so AIA effectively equivalent. Mixed business + personal asset use: sole trader using asset partly for personal purposes must apportion. £30k van used 80% business = £24k qualifying for AIA. Personal portion not deductible. Convert sole trader to limited company for FE?: occasionally cost-effective for large capital investment plans. £5m+ planned investment over 1-2 years = FE access via Ltd Co. structure could save £100k+ vs sole trader's £1m AIA cap requiring spread across years. Trade-off: company admin (£2k+/year) + CT vs IT structure (potentially less tax-efficient for owners). Partnership + LLP nuance: traditional partnerships use AIA via individual partners' tax returns. LLPs typically treated as transparent for tax = partners use AIA. LLP elected for company taxation = could use FE (rare). Practical advice for sole traders: budget capital expenditure to fit £1m AIA window. Stage purchases across tax years if exceeding. For consistently high capex (£500k+/year), consider incorporation analysis.

How does FE compare to Writing Down Allowance (WDA)?

WDA: Writing-Down Allowance = annual reducing-balance deduction. Statutory basis: Sections 56-67 CAA 2001. Rates 2026/27: Main pool 18%; Special rate pool 6%. Mechanics: asset added to pool. Annual WDA = 18% (or 6%) of pool balance. Remaining balance carried forward + reduces each year. FE vs WDA comparison - £100k new machinery: FE Year 1: £100k deducted. Tax saved 25% × £100k = £25,000. Cash flow benefit immediate. WDA Year 1: £100k × 18% = £18k deduction. Tax saved 25% × £18k = £4,500. Year 2: £82k × 18% = £14,760. Year 3: £67,240 × 18% = £12,103. After 10 years, ~£15k still in pool. Time-value comparison: FE gets full deduction Year 1. WDA spreads over ~25+ years. Discount rate matters - at 5% real discount, FE NPV ~£25k saving; WDA NPV ~£17k saving. FE worth ~50% more in present value terms. When WDA still relevant: (a) AIA + FE both exhausted: excess capex above limits enters WDA pool. (b) Pre-FE assets: existing assets purchased before April 2023 stay in WDA pool. (c) Special rate pool excess: above £1m AIA + above 50% special rate FE goes to 6% WDA. (d) Used / second-hand assets: ineligible for FE, may be AIA-eligible up to cap then WDA. Strategic CapEx planning: time large purchases to maximise FE + AIA across multiple accounting periods if appropriate. New assets dramatically more valuable for FE eligibility.

What are the second-hand asset restrictions for FE?

FE strict on new-only requirement. Statutory basis: Section 40C CAA 2001 + HMRC Capital Allowances Manual CA23156. Definition of "new": asset must NOT have been previously used in any trade. Examples that DO qualify (new): (a) Brand new machinery purchased from manufacturer / distributor. (b) Bespoke equipment commissioned for the company's specific use. (c) Stock items purchased from manufacturer's stock (even if not first sale). Examples that DON'T qualify (second-hand): (a) Demo equipment from manufacturer / dealer used for demonstration. (b) Ex-lease vehicles: cars + machinery returned from previous lessee. (c) Refurbished assets: even extensive refurbishment doesn't restore "new" status. (d) Stock with previous customer use: returned + resold goods. HMRC enforcement: claims for FE on second-hand assets challenged via Schedule 36 FA 2008 information notices. Common HMRC enquiry topic. Schedule 24 inaccuracy penalties for over-claims. Documentation: maintain manufacturer invoices + commissioning records + delivery notes. Avoid ambiguity about "new" status. AIA alternative for second-hand: if second-hand asset blocks FE, AIA may still apply (£1m cap). Same 100% rate but different eligibility test - AIA covers both new + second-hand. Strategic implication: for major capital spending, source new assets to capture FE benefits. Cost difference between new + second-hand often offset by tax benefit. Worked example: £200k new vs £150k second-hand machine. New: AIA £200k (or FE) = £50k tax saved. Net cost £150k. Second-hand: AIA £150k = £37.5k tax saved. Net cost £112.5k. Net cost similar but new asset typically longer useful life.

What is the 50% special rate FE?

50% First-Year Allowance for special rate assets: introduced April 2023 alongside main rate FE. Statutory basis: Section 40B CAA 2001. Mechanics: 50% of qualifying special rate capital expenditure deducted in Year 1. Remaining 50% added to special rate pool, attracting 6% WDA in future years. Qualifying special rate assets: (a) Integral features: heating + ventilation systems (HVAC), electrical wiring + lighting, lifts + escalators, water systems, cold-water systems. Section 33A CAA 2001. (b) Thermal insulation: added to existing buildings. (c) Long-life assets: expected useful life 25+ years (e.g., aircraft hulls, ships, specialised industrial machinery). (d) Cars with CO2 above 50g/km. Worked example - £100k integral features installation: FE 50%: Year 1 deduction £50k. Tax saved 25% × £50k = £12,500. Remaining £50k added to special rate pool. AIA alternative: full £100k deducted in Year 1 (within £1m cap). Tax saved £25k. AIA wins £12,500. FE 50% vs AIA: AIA always better for assets within £1m cap. FE 50% relevant when AIA cap already exhausted. Stacking strategy: prioritise AIA for special rate assets (gets 100%). Use main pool FE for excess main rate assets. Worked stacking - £1.5m investment: £800k main rate + £700k special rate. Optimal: AIA £700k special rate (full deduction). AIA remaining £300k main rate. FE £500k remaining main rate. Total Year 1 deduction = £700k + £300k + £500k = £1.5m. Tax saved £375k. Without optimal stacking: AIA £800k main + £200k special. Special rate £500k at FE 50% = £250k. WDA on remaining £250k. Year 1 total: £800k + £200k + £250k = £1.25m. Tax saved £312.5k. Difference £62.5k.

What happens when I dispose of an asset with FE claim?

Balancing charge on disposal: if asset disposed of for proceeds + previously claimed FE, balancing charge added to taxable profit. Statutory basis: Section 40D CAA 2001. Calculation: balancing charge = LOWER of: (a) sale proceeds; (b) original FE-relieved amount. Worked example - £100k machine sold for £40k after 3 years: Original FE: £100k claimed Year 1. Tax saved £25k. Disposal Year 3: £40k balancing charge added to Year 3 profit. Tax owed on £40k × 25% = £10k. Net FE benefit: £25k saved - £10k clawback = £15k net benefit. Worked example sold for £120k (unusual but possible for appreciating equipment): balancing charge capped at £100k (the FE-relieved amount). Tax owed £25k. Full clawback - net FE benefit zero, but time-value benefit from earlier deduction. For lower disposal proceeds <£100k: only proceeds amount is balancing charge. Earlier example £40k disposal = £40k charge. Vs traditional WDA: under WDA, similar balancing-allowance mechanic but smoother (capped at remaining WDA pool balance). FE more aggressive clawback risk for high-value disposals. Strategic implications: Don't FE assets you plan to sell soon: balancing charge clawback eliminates benefit. FE assets with long retention: maximum benefit. Real-estate-fixed assets (HVAC, lifts) ideal. Asset write-offs: scrap / write-off generally £0 disposal proceeds = no balancing charge. Insurance proceeds: count as disposal proceeds. Theft / damage with insurance payout triggers balancing charge. Plan asset insurance to align with FE strategy.

How does FE interact with Corporation Tax marginal relief?

Corporation Tax 2026/27: 19% small profits rate (under £50k profit), 25% main rate (above £250k), marginal relief in £50k-£250k band (effective marginal rate ~26.5%). FE impact on CT calculation: FE deduction reduces TAXABLE PROFIT. Lower profit → potentially crosses thresholds → CT band changes. Worked example - £300k pre-FE profit + £100k FE deduction: Without FE: £300k × 25% = £75k CT. With FE: £200k profit × ~26.5% effective marginal = £53k CT. Saving £22k from FE on £100k investment. Effective FE benefit higher in marginal band: each £ of FE deduction in marginal £50k-£250k profit zone saves ~26.5p tax. At main rate above £250k: 25p. Below £50k: only 19p. Strategic timing: time large FE-eligible spending to year when profit projected in marginal band for maximum benefit. Carry-forward of losses: if FE deduction creates / increases trading loss, loss carries forward (or back 1 year under CTA 2010 Section 37). Group company implications: connected companies must share £50k small profits limit + £250k main rate threshold (Section 18-29 CTA 2010). Effective bands narrower if multiple group companies. FE across group analysed at group level for marginal relief. Associated companies: from April 2023 reform, single overseas associated company brings UK company into shared bands. Plan FE across group entities accordingly. Loss-making companies: FE creates / extends loss. May surrender via R&D Tax Credit if R&D-related, or carry forward against future profits.

When should I use FE vs AIA vs WDA?

Decision matrix: FE preferred when: (a) Limited company with new main pool capex above £1m AIA cap; (b) Asset is genuinely NEW + UK-purchased / imported; (c) Long-term retention planned (5+ years to minimise balancing charge); (d) Currently in 25% main CT band where deduction worth most; (e) Multiple years of high capex planned (no AIA cap binding). AIA preferred when: (a) Sole trader / partnership (only option besides WDA); (b) Spending under £1m/year total; (c) Mix of new + second-hand assets needed; (d) Special rate assets within cap (AIA 100% vs FE 50%); (e) Connected companies sharing AIA cap efficiently. WDA only when: (a) AIA + FE both exhausted; (b) Excluded assets (cars main pool above 50g/km, used assets); (c) Existing assets in pool from pre-FE periods; (d) Buildings + structures (separate SBA 3%). Combined stacking for £2m+ capex with mix: Step 1: AIA £1m on highest-value mix (often special rate assets get priority since FE only 50%). Step 2: FE 100% on remaining new main pool. Step 3: FE 50% on remaining new special rate. Step 4: WDA on any second-hand assets or excess beyond above. Cash flow priority: FE + AIA both immediate 100% deduction. WDA spreads benefit over years. Generally FE/AIA preferred unless specific exclusion. Specialist accountant advice: capex over £500k warrants professional planning. Annual review of mix vs CT projections. Software (Xero, FreeAgent, Sage) handles allocation but doesn't optimise strategically.

What are the leasing exclusions for FE?

Leasing restriction: assets leased to third parties generally NOT eligible for FE. Statutory basis: Section 40A(5) CAA 2001. "Plant + machinery for leasing": company purchases asset specifically to lease to another party. NOT eligible. Common excluded scenarios: (a) Truck leasing companies purchasing fleet for customer leasing; (b) Construction equipment hire companies; (c) Server/computer leasing operations; (d) Specialised machinery rented to other businesses. Exceptions allowing FE despite leasing: (a) Background plant + machinery: assets that happen to be in a building leased out but are integral to the property's operation (HVAC, lifts, lighting). Owner can still FE these. (b) Short-term hire: hires under 50 days qualify per HMRC interpretation (not statutory but accepted). (c) Operating leases by lessor: lessor (with risk + reward of ownership) may FE plant if it's actively used in lessor's own business. Finance leases: complex - depends on whether asset effectively transferred to lessee for tax purposes (typically transferred). Subsidiary using parent's asset: connected-party transfers carefully analysed. Generally not classed as third-party leasing. HMRC enforcement: leasing exclusion is frequent FE compliance topic. Schedule 36 FA 2008 enquiries common. Strategic alternative for leasing businesses: AIA up to £1m still available regardless of leasing intention. Larger leasing companies typically use AIA + WDA mix. Property landlords: residential rental properties don't qualify for plant + machinery allowances generally (dwellings exclusion). Commercial property landlords can claim on common-area integral features (if owned + used in business of letting).

What is the future direction of UK capital allowances 2027+?

Capital allowances framework stable through 2026-2028. Major reforms unlikely. Confirmed permanent measures: (1) Full Expensing permanent (Spring Budget 2024). 100% main, 50% special rate. (2) AIA £1m permanent. (3) Structures + Buildings Allowance 3% permanent (post-Oct 2018 expenditure). Potential 2026-2028 changes: (a) Special rate FE increase: industry lobbying for 100% (vs current 50%). Possible Spring Budget 2026/27 announcement. (b) Used asset eligibility: pressure to allow second-hand assets within FE (e.g., refurbished equipment). HMRC concern: tax avoidance via inter-group asset shuffling. (c) Sole trader access: long-standing pressure to extend FE to unincorporated businesses. Treasury concern: cost. (d) Green capital allowances: enhanced relief for environmental investment - heat pumps, EV charging, solar, battery storage. Already 100% FYA for zero-emission cars. Potential expansion. (e) R&D capital allowances integration: 100% FYA for R&D-related capex. May be folded into FE framework. (f) Apprenticeship Levy + capital allowances interaction: possible incentive for training-related investment. (g) MTD ITSA impact: from April 2026 self-employed digital records may simplify capital allowance claims for unincorporated businesses. Industry advocacy: CBI, IoD, Federation of Small Businesses lobbying for: (1) increased SBA rate (3% → 6%); (2) AIA cap increase to £2m; (3) sole trader FE access; (4) used asset eligibility. For businesses planning capex 2026-2027: current framework is stable + favourable. Plan multi-year capex with current rates assumed.