50 kWp — NET OF AIA
£27,995
net cost · gross £34,995
Gross £34,995 less ~£7,000 AIA tax relief (25% corporation tax band). Energy savings ~£15,000/yr. Net payback under 2 years.
Enquire COMMERCIAL · UK CAPITAL ALLOWANCES + TAX RELIEF
Solar panels capital allowances: is commercial solar tax deductible?
Yes — commercial solar PV is one of the most tax-efficient capital investments a UK business can make. The Annual Investment Allowance (AIA) delivers 100% first-year deduction up to £1m; Full Expensing covers anything above (permanent from April 2026). This page explains exactly what qualifies, the maths your accountant will run, what to document at install, and how AIA stacks with grants and energy savings.
Plain-English tax-relief guide · Worked examples · Accountant-ready cost breakdowns · Bankable-grade ROI projections with tax modelled in · MCS/NAPIT accredited
CUSTOMER REVIEWS
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Every review on this page is from a real Yorkshire customer, sourced directly from our Google Business Profile. We don't filter, edit or hide anything — including the occasional critical one.
Read all reviews"Faultless service and great install, aftersales were quick and efficient. Big thanks to Scarlett who helped me out post install."
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"I’ve been after some solar panels for a while now and these guys were absolutely fantastic from start to finish. It took no time at all for someone to come out and whey the job up.…"Read full review →
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"Great experience - would recommend"
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"I would definitely recommend Future Power Team, they were a really professional company, who took time to understand our green energy requirements and install a system to deliver-…"Read full review →
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ABOUT AIA + FULL EXPENSING ON SOLAR
100% first-year deduction, straight off taxable profits.
The short answer to "is commercial solar tax deductible?" is yes — and the relief is unusually generous. The Annual Investment Allowance (AIA) lets your UK business deduct 100% of qualifying solar PV expenditure from taxable profits in the year of purchase, up to £1 million per business per year. For limited companies above the AIA cap, Full Expensing (made permanent in the April 2026 Finance Act) provides continued 100% first-year deduction with no annual ceiling. Solar PV qualifies under both regimes as plant and machinery.
In cash terms: every £100 spent on commercial solar typically returns ~£19-£25 via reduced corporation tax in year 1 (depending on your profit band — currently 19% small-profits rate, 25% main rate, 26.5% marginal-rate band between £50k and £250k profits). For a typical 100 kWp install at £69,995, AIA delivers roughly £13,300-£17,500 of effective relief — turning the net-of-tax cost into £52-£57k against energy-cost savings of ~£30k/year. Net payback inside 2 years is the normal outcome.
The mechanics are straightforward: your accountant claims AIA via your year-end accounts using the cost breakdown we provide at install. There's no separate application, no waiting list, no qualifying assessment — solar PV qualifies as long as it's installed for trade purposes by a UK business with taxable profits. At Future Power Team we model AIA / Full Expensing into every commercial quote so the net-of-tax cost and post-relief payback are visible upfront. Request a free site survey and we'll deliver a bankable model your accountant can verify.
NET COST AFTER AIA
Three reference points, net of capital allowance.
What you actually pay is the gross install cost less the AIA tax relief. The tiers below assume a profitable limited company at the 25% corporation-tax main rate, claiming AIA within the £1m annual cap. Smaller businesses at the 19% rate get slightly less relief; higher-rate sole traders can get more.
Most popular
100 kWp — NET OF AIA
£55,995
net cost · gross £69,995
Gross £69,995 less ~£14,000 AIA tax relief at 25%. Energy savings ~£30,000/yr. Net payback ~1.9 years. Comfortably within the £1m AIA cap.
Enquire250 kWp+ — AIA OR FULL EXPENSING
Custom
see worked example
For ltd-co. installs above the £1m AIA cap, Full Expensing (permanent April 2026) provides continued 100% first-year deduction. Worked examples in our quotation for systems above 250 kWp.
EnquireNet-cost calculations assume a UK trading business with sufficient taxable profits to absorb the AIA in year 1. Actual relief depends on your specific tax position, profit band, accounting period and whether AIA capacity is shared with other plant-and-machinery purchases. Always confirm with your accountant before relying on a net-of-tax projection.
HOW THE RELIEF ACTUALLY WORKS
Four mechanisms every commercial buyer should understand.
UK capital allowances on solar are simpler than they sound — four mechanisms cover almost every commercial scenario. Your accountant runs the maths; we provide the cost breakdown and asset register in the format they need.
01
AIA — 100% first-year deduction up to £1m
The Annual Investment Allowance lets your business deduct 100% of qualifying solar PV expenditure from taxable profits in the year of purchase, up to £1 million per business per year. Solar PV qualifies as plant and machinery; the AIA cap is generous enough to cover almost any single commercial install. Effective tax relief = corporation-tax rate × installation cost.
02
Full Expensing — for ltd-cos above the AIA cap
Full Expensing (announced 2023 Spring Budget, made permanent in the April 2026 Finance Act) provides continued 100% first-year deduction on main-pool plant and machinery for limited companies — no annual cap. Solar PV qualifies. Practical effect: for a profitable ltd-co spending £2m on a large industrial array, the full £2m comes off year-1 taxable profits, saving up to £500k in corporation tax.
03
Different entity types, same outcome
AIA applies to limited companies, partnerships and sole traders alike — corporation tax for ltd-cos, income tax for partnerships and sole traders. Full Expensing is ltd-co only (for the time being). Charities, non-trading entities and businesses without taxable profits get no immediate relief but can carry losses forward. Most UK trading businesses get the full AIA benefit on commercial solar.
04
Grants stack on top of capital allowances
If you receive a UKSPF or PSDS grant, capital allowances apply to the net cost you actually pay. A £20k grant on a £100k system means you claim AIA on the £80k net spend, getting ~£20k of grant + ~£16k of AIA relief — combined 36% effective reduction. Always confirm with your accountant that the grant is non-taxable income (most business-energy grants are).
RELIEF BY ENTITY TYPE
Six business structures, six relief routes.
Different business types access capital allowances differently — ltd-cos via corporation tax, partnerships via the partnership return, sole traders via income tax, public sector via PSDS grants instead. Mapped to entity structure below.
LIMITED COMPANIES
AIA or Full Expensing — corporation tax
For ltd-cos, AIA delivers 100% first-year deduction against corporation tax (currently 19-25% depending on profit band). Above £1m/year of qualifying spend, Full Expensing takes over with the same 100% deduction. Effectively ~20% of every pound spent on solar comes back via reduced corporation tax in year 1.
PARTNERSHIPS
AIA against partnership profits
For partnerships (including LLPs), AIA applies against the partnership's taxable profits — each partner picks up their share via the partnership return. Same 100% first-year deduction up to £1m/partnership/year. Common structure for farms and family-run businesses.
SOLE TRADERS
AIA against trading income
For sole-trader businesses (typical structure for smaller farms, single-owner SMEs), AIA applies against trading profits assessed under income tax (20-45% depending on band). Effective relief can actually be higher than ltd-co relief for higher-rate sole traders. Sole-trader farms benefit particularly.
AGRICULTURAL ENTERPRISES
AIA + Sustainable Farming Incentive
Farms can layer AIA capital allowances against trading profits with Sustainable Farming Incentive (SFI) renewable-energy provisions. Common structure: AIA delivers ~20% via tax relief, SFI delivers an annual stewardship payment alongside the energy savings. See our farms page for sector-specific worked examples.
See agricultural detail → PUBLIC SECTOR
No tax relief — but PSDS grants apply
Public-sector estates (schools, NHS, councils) have no corporation tax liability and so don't access AIA. Instead, the Public Sector Decarbonisation Scheme (PSDS) provides direct capital grants — often covering 50-100% of the system cost. PSDS Phase 5 open through 2026.
See PSDS detail → CHARITIES + NON-TRADING
No immediate relief — losses carried forward
Charities, social enterprises and non-trading entities without UK taxable profits can't claim AIA in the year of install. Investment may still make sense via energy savings + PPA / lease structures, where the system owner (a profitable third party) captures the capital allowances and passes through some of the benefit via cheaper electricity rates.
YORKSHIRE-WIDE TAX MODELLING
Yorkshire businesses, every entity type.
Yorkshire businesses span every entity type that can claim capital allowances — large limited-company manufacturers around Leeds and Sheffield, family-partnership farms across the Vale of York and the East Riding, sole-trader SMEs on industrial estates from Bradford to Hull, charity-owned community buildings in every market town. We model the appropriate relief route for your specific structure in every quote.
For Yorkshire farming partnerships, AIA against partnership profits is the standard route — typically a 20-25% effective relief depending on partner tax bands. For ltd-co manufacturers above the AIA cap (rare but it happens on £1m+ industrial arrays), Full Expensing kicks in. For Yorkshire's public-sector estates (the universities, NHS trusts, Sheffield/Leeds councils), AIA doesn't apply but PSDS grants typically do — see our funding page for that route. For charities and community-owned buildings, a PPA structure with an asset-owning third party often makes more sense than direct ownership.
Common pitfalls we help avoid: (a) splitting solar across multiple installs to "stay under the AIA cap" — this rarely helps and often reduces volume discount; (b) timing the install just-after a year-end and missing the AIA window for current-year profits; (c) treating commercial-grade battery storage as a separate non-qualifying item — it qualifies under the same plant-and-machinery rules; (d) assuming a PPA is automatically cheaper than buying outright — when AIA + ownership are factored in, direct ownership usually wins. See our grants page for how AIA stacks with UKSPF and PSDS, or our commercial hub for the broader brief.
YOUR LOCAL COMMERCIAL SOLAR INSTALLER
Commercial solar across Yorkshire.
Leeds
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Sheffield
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York
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Harrogate
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Wakefield
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Barnsley
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Doncaster
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Bradford
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Hull
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Wetherby
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Stockton-on-Tees
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Middlesbrough
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Manchester
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INDUSTRY-LEADING BRANDS
We work with the brands you can trust.
We work across a full range of leading brand partners — picking what fits your home, your tariff and your roof. Same install standard whichever you choose.
See all 19 brand pages
CAPITAL ALLOWANCES FAQS
The questions we get most on tax relief.
Honest answers about UK capital allowances on commercial solar — what AIA covers, how Full Expensing differs, whether battery storage qualifies, what documentation is needed, ltd-co vs partnership vs sole trader, what happens on disposal, and how AIA stacks with grants.
Request a tax-modelled quoteAre commercial solar panels tax deductible in the UK?
Yes — commercial solar PV is one of the most tax-efficient capital investments a UK business can make. Solar PV qualifies for the Annual Investment Allowance (AIA), allowing 100% first-year deduction from taxable profits up to £1 million per business per year. For limited companies, Full Expensing extends 100% deduction above the AIA cap with no annual ceiling. Practical effect: for every £100 spent on solar, ~£19-£25 comes back via reduced corporation tax in year 1.
What is the Annual Investment Allowance (AIA) for solar panels?
The AIA is the main capital allowance for UK businesses — it lets you deduct 100% of qualifying plant-and-machinery expenditure from taxable profits in the year of purchase, up to £1 million per business per year. Solar PV qualifies as plant and machinery; the AIA cap is generous enough to cover almost any single commercial install. AIA is claimed via your year-end accounts — no separate application required. Your accountant handles it as part of normal tax filing.
How is AIA different from Full Expensing?
Both deliver 100% first-year deduction. The key differences: (1) AIA has a £1m annual cap; Full Expensing has no cap. (2) AIA applies to limited companies, partnerships and sole traders; Full Expensing is ltd-co only. (3) AIA covers special-rate pool items at a slightly higher rate than Full Expensing (50% first-year on special-rate, vs Full Expensing's 50% on special-rate). For most commercial solar installs under £1m, AIA is the simpler route. Above £1m, Full Expensing kicks in for ltd-cos. Above £1m as a partnership or sole trader, the older Writing Down Allowance applies (slower relief, 18%/yr).
How much tax relief does AIA actually deliver?
Effective relief = your corporation-tax rate × installation cost. A profitable ltd-co at the 25% main rate, spending £100,000 on solar, deducts the full £100,000 from taxable profits, reducing tax by £25,000. Effective cost: £75,000 (a 25% reduction). For smaller ltd-cos at the 19% small-profits rate, relief is £19,000 on the same install. For higher-rate sole traders (40-45% income tax), relief can actually exceed the ltd-co rate. Always confirm with your accountant — your profit position matters.
Does battery storage qualify for AIA too?
Yes — commercial battery storage qualifies as plant and machinery under the same AIA rules as solar PV. If you install solar + battery in a single commercial project, the whole installation cost (panels + inverter + battery + scaffolding + commissioning) goes onto the AIA claim. Worth pricing solar and battery together if your business can use both — combined system has stronger commercial economics than either alone.
What needs to be documented at install for an AIA claim?
Standard accounting practice: dated invoice from the installer, itemised cost breakdown (panels, inverter, mounting, scaffolding, electrical work, commissioning all listed separately so the accountant can categorise), commissioning certificate (MCS or equivalent), asset register entry. We provide all four as standard with every commercial install. Your accountant adds the asset to the capital allowances schedule and claims the AIA against year-end taxable profits.
Can I claim AIA if I'm using lease-purchase finance?
Yes — for hire-purchase agreements, you claim AIA on the full cash equivalent cost (the headline system price) at the date of first use, NOT spread over the loan term. This is hire purchase under HMRC tax rules — you own the asset from day 1 with an installment-debt structure. Operating leases work differently (the asset-owner claims, not you) and typically attract worse net economics. We can model both routes in your quote.
What about Power Purchase Agreements (PPAs)?
With a PPA the third-party owns the system, so they claim AIA — you don't. Instead, you pay a below-grid rate for the electricity (typically 7-12p/kWh for a 10-25 year contract). The PPA provider effectively passes some of the AIA benefit through via cheaper electricity rates than you'd otherwise pay. PPAs are best for businesses that (a) can't access AIA themselves (charities, public sector, non-trading entities), (b) want to preserve cash for operations, or (c) genuinely don't want the asset ownership.
What if I'm not making a profit this year — can I still claim AIA?
Yes — if AIA creates or increases a trading loss, that loss can be (a) set against other income in the same year, (b) carried back to the previous year and reclaimed, or (c) carried forward indefinitely against future trading profits. Loss-relief carry-back is particularly useful for businesses that had profitable prior years. For ltd-cos, the rules allow carry-back of trading losses for 1 year (current year + 1 prior). Your accountant will optimise the timing.
Does VAT also apply to commercial solar?
Most commercial solar PV is zero-rated for VAT under the energy-saving materials provisions (extended through 2027 in many cases for commercial energy-efficiency improvements). Where standard VAT applies, VAT-registered businesses recover it as input tax in the normal way. Net effect: most commercial solar quotes show prices ex-VAT because the VAT is either zero-rated at supply or fully recoverable. Worth confirming your specific VAT position with your accountant before commissioning.
Can I combine AIA with a grant like UKSPF or PSDS?
Yes — capital allowances apply to the net cost you actually pay after any grant award. So if you receive a £20,000 UKSPF grant on a £100,000 install, you claim AIA on the £80,000 net spend. Effective relief stacks: ~£20k grant + ~£16k AIA = £36k off the gross install cost (36% effective reduction). Important caveat: confirm with your accountant that the grant itself isn't taxable income — most UK business-energy grants are explicitly tax-free, but always verify before assuming.
Are capital allowances clawed back if I sell the building?
No — AIA is not clawed back on disposal. When the property is sold, the writing-down balance (in AIA cases, usually zero by year 2-3) transfers to the new owner via the sale paperwork. The new owner picks up the asset at its tax book value. If you sell within a few years of install, there may be a "balancing charge" if the disposal proceeds exceed the tax book value, but this is typically minor relative to the year-1 AIA benefit. Your accountant handles the disposal accounting.
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