Asset Finance for Commercial Solar
Catch-all category for hire purchase, equipment finance, and similar structures aimed at SME-scale solar projects below £250k. For a complete after-tax IRR model that properly handles the FYA benefit, loan interest, and electricity escalation, see our after-tax IRR modelling guide.
3–7 years; commonly 5 years
7%–11% APR depending on covenant. Faster, simpler underwriting than green loans, often at slightly higher rates. Arrangement fees £500–£2,500.
11%–17% pre-tax IRR.
How it works
Asset finance is the umbrella term for the cluster of equipment-finance products that SMEs use to fund tangible assets. For commercial solar in the £75k–£250k range, asset finance is often the practical choice: the underwriting is faster than a green loan, the structure is familiar to most finance teams, and the hire purchase variant captures the same tax benefits as outright purchase. The economic story is comparable to a green loan, with a slightly higher rate offset by lower transaction costs and faster execution. For larger schemes, asset finance becomes uneconomic compared to specialist green debt — the leasing companies' fixed margins start to bite. The single most common pitfall in SME asset finance is term mismatch: a 5-year HP on a 25-year asset means heavy cash impact in years 1–5 followed by 20 years of pure savings. That's economically fine but operationally tight if the business hits a downturn during the HP term. We recommend matching term to cash flow tolerance, not asset life.
Worked example: 250kWp on a £200,000 commercial system
5%–10% deposit typical (~£10k–£20k on £200k system)
Year-one HP payments ~£40k (5-year term). Electricity saving ~£42k. FYA tax saving ~£25k. Net year-one cash position: positive £27k.
+£900k to +£1.2m cumulative free cash flow.
11%–17% pre-tax IRR.
Comparable to green loan economics on shorter terms.
Best fit
- ● SMEs with smaller commercial systems (50kWp–200kWp)
- ● Businesses with existing equipment-finance relationships
- ● Companies wanting fast underwriting (often 2–4 weeks vs 6–10 for green loans)
- ● Owner-managed businesses where directors' guarantees are available
Not suitable for
- ○ Larger commercial schemes >£500k (better terms via specialist green-loan markets)
- ○ Public sector (PSDS or capital is the standard route)
Pros
- Fast underwriting — typically 2–4 weeks
- Standard SME credit assessment, no specialist green-loan due diligence
- Captures FYA and capital allowances under HP
- Familiar structure for finance directors with equipment finance experience
- Flexible deposit options
- Smaller systems can be financed economically
Cons
- Typically shorter terms than green loans (3–7 years vs 7–15)
- Slightly higher effective rates than secured green loans
- Personal guarantees often required
- Total finance cost concentrated in fewer years means higher annual cash impact
- Less competitive for systems above £250k
Lender shortlist
Five categories of UK asset finance lender serving commercial solar via hire purchase and finance lease structures.
UK asset finance lender shortlist →Mechanics
Ownership model
Hire purchase: lender owns the asset during the term; ownership transfers on final payment. Equipment finance lease: lender owns throughout. Most SME asset finance for solar uses hire purchase with title transfer on final payment.
Balance sheet treatment
Hire purchase: capitalised on balance sheet from day one with corresponding HP creditor. Equipment lease: depends on lease classification.
Tax treatment
Under hire purchase, the lessee/buyer is treated for tax as having bought the asset on day one — they claim the FYA, AIA, and writing-down allowances. The interest portion of HP rentals is deductible. This is a key advantage over operating lease.
Who offers it
SME-focused asset finance providers (Aldermore, Close Brothers, Hitachi Capital, Shawbrook), bank asset-finance arms, and broker networks. We work with several broker partners to source competing quotes for SME deals.
Compare with other finance routes
Capital Purchase
Pay cash, own the asset, claim the full tax relief — the simplest structure and almost always the most economic over 25 years.
Green Loans
Borrow against the project, retain ownership, smooth the cash impact — green loans typically charge 6–9% APR for solar specifically.
Operating Lease
The leasing company owns the system; you pay a fixed annual rent. Off-balance-sheet, fully expensable, but you don't get the FYA.
Direct comparisons
Frequently asked questions
What's the difference between hire purchase and finance lease for solar?
How fast can asset finance approve commercial solar?
Is asset finance more expensive than green loan?
Can asset finance fund ground-mount agricultural solar?
Are there sector-specialist asset finance providers?
Asset finance for commercial solar — how it works in practice
Asset finance is the UK's most widely-used financing mechanism for commercial solar equipment purchases. Unlike green loans (which are typically secured against property), asset finance uses the solar asset itself as security — making it accessible to businesses without unencumbered property to offer as collateral.
How commercial solar asset finance is structured
Hire Purchase (HP) — most common for solar
The asset finance provider purchases the solar equipment from the supplier on the customer's behalf. The customer makes fixed monthly payments (principal + interest) over the agreed term. Title passes to the customer on the final payment. Under HP, the customer is treated as the beneficial owner from day one — meaning the customer can claim the 50% First Year Allowance and Annual Investment Allowance as if they purchased the equipment outright. This is the key tax advantage of HP over operating lease. HMRC treatment: Section 67 Capital Allowances Act 2001 — the hirer is treated as owner for capital allowance purposes.
Finance lease — lessor retains title
Similar payment structure to HP, but title remains with the lessor throughout the term. The lessee claims the lease rentals as an operating expense (not capital allowances). Appropriate for businesses that do not benefit from capital allowances (loss-making companies, charities, local authorities). Monthly payments are fully deductible against taxable income.
Operating lease (solar-specific)
The lessor owns the asset, leases it to the customer for a fixed monthly payment, and retains the residual value risk. For solar, "operating lease" is technically only achievable under IFRS 16 / FRS 102 Section 20 where the lessor carries the residual value risk — a condition that is structurally met by solar operating leases (since solar panels have residual value at end of a 10-15 year lease). Under operating lease accounting, the asset is off-balance-sheet — a significant attraction for businesses with covenant constraints on balance sheet gearing.
Asset finance rates and terms 2026
| Facility type | Typical term | Typical all-in rate | Security | Minimum transaction |
|---|---|---|---|---|
| HP (solar-specific) | 3–7 years | 6.5–10.5% APR | Asset only (no property charge) | £20,000 |
| Finance lease | 3–7 years | 6.5–10.5% APR | Asset only | £20,000 |
| Operating lease | 7–15 years | 8–12% embedded in rental | Asset; sometimes personal guarantee | £50,000 |
| Sale and leaseback (installed asset) | 5–10 years | 7–11% APR | Installed asset; title transfer | £50,000 |
| Block discounting (installer-originated) | Passed through at market rate | Varies by credit tier | Asset + installer recourse | £200,000 portfolio |
The FYA interaction with HP asset finance
The most misunderstood aspect of commercial solar asset finance is the FYA interaction. Many businesses assume that financing an asset removes the ability to claim capital allowances. Under Hire Purchase, this is incorrect.
FYA on HP-financed solar: the HMRC position
Under Section 67 of the Capital Allowances Act 2001, a business acquiring plant and machinery under a HP agreement is treated as if they purchased the asset for capital allowance purposes from the date the agreement commences. This means: (a) the full 50% FYA can be claimed in the year the HP agreement begins and the asset is first used, regardless of the payment schedule; (b) the remaining 50% enters the main pool at 18% WDA per annum. The HP interest payments are separately deductible as a finance cost against trading income. The combined effect is: FYA reduces year-1 taxable profit by 50% of the system cost; HP interest further reduces taxable profit each year of the term.
Worked example: 300kWp system, HP-financed
System cost: £300,000. HP term: 5 years at 8.5% APR. Monthly payment: ~£6,100. Year-1 FYA allowance: £150,000 (50%). CT saving at 25%: £37,500 in year 1. Annual interest cost (year 1): ~£24,000 — deductible. After-tax cost of year-1 HP payments: £6,100 × 12 = £73,200 gross, minus FYA CT relief £37,500 = £35,700 net cost of debt in year 1. Electricity saving year 1: £57,000 (300kWp at £0.215/kWh). Net cash position year 1: +£21,300 after all payments and tax. The project is cash-flow positive from day 1.
Lender panel for commercial solar HP 2026
A solar advisory service sourcing HP finance should access 8–15 lenders to ensure competitive pricing and terms. Key lenders active in UK commercial solar HP include:
Tier-1 clearing bank asset finance arms
Lloyds Bank Asset Finance, Barclays Asset Finance, NatWest Invoice Finance (asset finance division), Santander UK Corporate Asset Finance. These lenders offer the keenest rates for creditworthy borrowers (turnover >£2m, 3 years of filed accounts) but have the most conservative credit appetite — they will not finance pre-revenue solar or businesses with recent CCJs or county court judgments.
Specialist renewable energy asset finance
Siemens Financial Services (UK), Investec Asset Finance, Close Brothers Asset Finance. These lenders have deeper solar sector expertise, faster decisioning (3–4 weeks vs 6–8 weeks for clearing banks), and more flexibility on credit covenant requirements. Rates are typically 0.5–1.5% higher than tier-1 bank rates.
Challenger banks and fintech asset finance
Nucleus Commercial Finance, Fleximize, Funding Circle Green Loan, iwoca Asset Finance. Most practical for transactions in the £20,000–£250,000 range where clearing banks are operationally inefficient. Faster decisioning (24–72 hours), digital-first application process, but higher rates (2–4% above clearing bank rates). Suitable for smaller commercial solar projects.
Asset finance for commercial solar: the full UK market guide 2026
Asset finance is the UK's most common commercial solar funding route for SMEs. It covers three distinct structures — hire purchase (HP), finance lease, and equipment finance — each with different balance sheet treatment, capital allowance eligibility, and end-of-term options. Understanding the differences before approaching a lender will save you 2–4 weeks in the deal process and typically 0.5–1.5% on your effective rate.
HP vs finance lease vs operating lease: what changes
| Feature | Hire purchase | Finance lease | Operating lease |
|---|---|---|---|
| Ownership at end of term | Yes — passes on final payment | Option to purchase at fair market value | No — asset returned or re-leased |
| Balance sheet treatment | On-balance-sheet (IFRS 16 asset + liability) | On-balance-sheet (IFRS 16) | Off-balance-sheet under IFRS 16 (practical expedient for short leases) |
| Capital allowances | Lessee claims AIA/FYA from first day of use | Lessor claims; lessee deducts lease payments as expense | Lessor claims; lessee deducts rental as operating expense |
| VAT treatment | VAT on each payment; recoverable if VAT-registered | VAT on each rental; recoverable | VAT on each rental; recoverable |
| Typical term | 3–7 years | 5–10 years | 5–10 years |
| Typical deposit | 10–20% (or nil if strong credit) | First and last rental or nil | Nil to first rental |
| Best for | Businesses wanting ownership + AIA + no residual risk | Businesses wanting ownership option without full HP deposit | Businesses wanting off-balance-sheet; PSDS supplement; operating expenditure treatment |
UK asset finance lenders for commercial solar: market comparison 2026
| Lender / broker | Products offered | Min deal | Max deal | Typical rate | Solar experience |
|---|---|---|---|---|---|
| Close Brothers Asset Finance | HP, finance lease | £25,000 | £2m | 7.0–11.5% | High — dedicated clean energy desk |
| Siemens Financial Services | Finance lease, HP | £50,000 | £5m | 6.0–10.0% | High — specialist energy finance team |
| White Oak UK | HP, finance lease, operating lease | £25,000 | £3m | 7.5–12.0% | Medium — renewables accepted; no dedicated solar desk |
| Kennet Equipment Leasing | Finance lease, operating lease | £25,000 | £1m | 7.0–11.0% | Medium |
| Propel Finance | Whole-of-market broker (HP, FL, OL) | £10,000 | £2m+ | Varies | High — active solar finance broker |
| Solar Finance UK (broker) | Whole-of-market: HP, FL, OL, green loan, PPA | £25,000 | £5m+ | Varies | Very high — solar-specialist broker |
| Hitachi Capital (now Mitsubishi HC Capital) | HP, finance lease | £50,000 | £3m | 7.0–10.5% | Low — general equipment; solar accepted |
| Aldermore Bank | HP, unsecured commercial loans | £25,000 | £500k | 8.0–13.5% | Low — challenger bank; fast decisions |
How commercial solar asset finance underwriting works
Unlike a mortgage or green loan, asset finance underwriting is primarily asset-driven rather than income-driven. The lender evaluates three things in order: (1) the quality and liquidity of the asset — a 200kWp roof-mounted system on a freehold commercial building with a long-standing owner-occupier is a strong asset; a ground-mounted system on a short leasehold is much weaker. (2) Business financial strength — 2–3 years filed accounts, turnover typically 5x the annual lease payment, and positive net asset value. (3) Director personal credit — for SMEs under £3m turnover, most lenders require a director personal guarantee. The personal guarantee is unlimited in most standard asset finance agreements unless you specifically negotiate a cap.
Asset finance credit factors for commercial solar: what lenders score
| Factor | What lenders look for | How to optimise before applying |
|---|---|---|
| Business age | Minimum 2 years trading; 3+ years preferred | If under 2 years, consider a specialist broker who can access lenders with lower seasoning requirements |
| Annual turnover | Typically 5–8x the annual lease payment | Ensure management accounts are up to date if filed accounts are >6 months old |
| Net assets / balance sheet strength | Positive net assets; gearing ratio under 60–70% | Pay down short-term debt before applying; avoid presenting during a dividend drawdown period |
| Asset quality | Freehold or long leasehold (25+ years remaining); good roof condition; valid planning consent | Commission structural survey and DNO pre-application before applying — shows lender the deal is viable |
| Energy savings case | Modelled payback of 5–8 years; DSCR above 1.2x | Provide an independent energy audit report with the application — addresses lender concern about performance risk |
| Director credit history | Clean CCJ record; no recent IVA or bankruptcy | Check personal credit file 6 weeks before applying; resolve any errors |
What happens at the end of an asset finance term for commercial solar
This is one of the most overlooked aspects of solar asset finance — and getting it wrong can cost businesses £20k–£60k. At the end of a hire purchase agreement, title passes automatically on the final payment. At the end of a finance lease, you have a balloon payment option — pay the residual and take title, or return the system (which the lessor then sells). At the end of an operating lease, the lessor takes the system back — and you may be liable for decommissioning costs (removal, roof repair, DNO disconnection) that were not specified in the original lease. Before signing any operating lease, get a written decommissioning liability clause or a cap in writing. For systems over 100kWp, decommissioning and roof reinstatement can cost £15k–£40k.
Model Asset alongside the alternatives
We build a side-by-side after-tax comparison across all six structures using your actual numbers — not lender brochure assumptions.
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