Agricultural solar finance: a farm guide

Farms are one of the better-suited businesses for solar in the UK, and they often finance it differently from a factory or an office. The roofs are large, south-facing and already there. The load is heaviest in daylight — milking parlours, grain dryers, refrigeration, irrigation and increasingly EV and ground-source kit. And the balance sheet usually carries land and buildings that open doors most SMEs do not have. This guide explains how agricultural solar finance actually works in 2026, which structures keep the most value on the farm, and where the tax sits.

We are an asset-finance brokerage, not an installer. We arrange the funding — hire purchase, equipment loans, finance and operating leases, and sale-and-leaseback — across a panel of agricultural and renewables lenders. Whatever you read below, the modelling should be done in pounds against your own bills before you commit.

Why farms are a strong fit for financed solar

The case for farm solar is mostly about self-consumption. Every unit you generate and use on site displaces a unit you would otherwise buy at the full commercial rate, which is worth far more than the few pence per unit you earn exporting the surplus. A dairy or poultry unit running through the day will self-consume a high share of what the roof produces, which is exactly the profile that makes the numbers work.

Barn and shed roofs are the obvious starting point: large spans, no planning headache in most cases, and no productive land lost. Where roof space runs out, ground-mount on lower-grade land is common, though that brings planning and grid-connection questions that change the timeline and the cost. The headline figures are best tested in pounds against your own bills, so that a monthly repayment can be weighed against your expected bill saving before you talk to anyone.

The general principle holds here as everywhere: if the energy saving plus any export income comfortably exceeds the monthly repayment, financed solar adds cash flow from month one rather than tying up working capital you would rather keep for stock, machinery or land.

The finance routes that suit farms

There is no single “farm solar loan”. The right structure depends on your tax position, whether you want to own the asset, and what else you are funding alongside it.

Hire purchase — own it and keep the allowances

For most profitable, tax-paying farm businesses, hire purchase is the default. You spread the cost over a fixed term, the system is yours from the outset for tax purposes, and at the end of the agreement you own it outright for a nominal fee. Crucially, because the business owns the asset, the business claims the capital allowances and keeps the Smart Export Guarantee (SEG) income on anything you export.

That ownership point is the heart of agricultural solar finance. Solar PV is special-rate (integral-feature) expenditure. It qualifies for the Annual Investment Allowance (AIA) at 100% on up to £1m of qualifying spend a year, with a 50% first-year allowance on anything above that threshold. Both reliefs are permanent. Solar does not qualify for 100% full expensing — that relief is for main-rate plant only — so do not let anyone tell you a farm solar array can be written off in full under full expensing. Our capital allowances guide sets out the detail and a worked example.

Equipment loan — own it, often unsecured

An equipment loan reaches the same ownership outcome as HP but is structured as a loan secured against the kit rather than a hire agreement. It can suit a farm that wants to fund solar, battery and EV charging as a single project, and the term can be matched to the life of the equipment.

Finance and operating lease — when leasing makes sense

With a finance lease the lessor usually claims the capital allowances and passes the benefit back through lower rentals, so a lease can be the more efficient route for a farm that cannot use the allowances itself — for example a business that is currently loss-making or has limited tax capacity. With an operating lease the lessee claims no allowances at all but the rentals are deductible as a trading expense. Either way the rentals are an allowable cost, and the right choice turns on whether your farm can use the allowances or would rather pass them to the lessor.

Sale-and-leaseback — funding diversification

If you already own a solar system outright and need to release the capital tied up in it — to fund a diversification project, a new building, or simply to ease cash flow — sale-and-leaseback lets you sell the installed array to a funder for a lump sum and lease it back. Watch the tax: selling an asset you have claimed allowances on can trigger a balancing charge, and if any grant funded the original install there may be clawback conditions. We flag these before you proceed rather than after.

How ownership decides where the value lands

The reason we steer most farms towards an owned structure is straightforward. Owning the system via asset finance keeps two streams of value inside the farm business: the capital allowances, and the SEG export income. Under a Power Purchase Agreement (PPA), by contrast, a third-party funder owns the panels, claims the allowances and keeps the SEG income, and you simply buy the power they generate on your own roof. A PPA can suit a farm with no appetite for capital outlay or no tax capacity to use the allowances — but for a typical profitable farm it usually leaves money on the table. We set the two side by side in asset finance vs PPA.

VAT, accounting and the 2026 changes

VAT-registered farm businesses can reclaim the VAT on the equipment in the normal way. The route affects the timing: with hire purchase or an equipment loan you pay the VAT up front and reclaim it, while a lease spreads the VAT across the rentals. The domestic zero-rating you may have seen advertised does not apply to commercial agricultural installations.

There is also an accounting change to be aware of. The revised FRS 102 brings most leases onto the lessee’s balance sheet for accounting periods beginning on or after 1 January 2026, with exemptions for short-term and low-value leases. In practice this means an operating lease that used to sit off balance sheet will now appear as a right-of-use asset and a lease liability — worth discussing with your accountant if loan covenants or borrowing headroom matter to your business.

Putting it together

Most farms we work with end up owning their solar through hire purchase or an equipment loan, keeping the allowances and the export income, with the term set so the monthly repayment sits comfortably below the energy saving. Where there is no tax capacity, a lease shifts the allowances to the lessor and lowers the rental. And where capital is already committed elsewhere, sale-and-leaseback can free it up. You can compare structures by sector in our solar finance by sector hub, which sets each route against the others alongside the wider funding landscape, grants included.

If you would like an indicative monthly figure for your farm, send us the basics of the project and we will model the routes and the after-tax position for you. Start with a no-obligation quote and we will come back with the structure that keeps the most value on the farm.