Solar sale-and-leaseback: releasing capital

If you have already paid cash for a commercial solar array, that capital is now sitting on your roof rather than in your business. Sale-and-leaseback is the structure that gets it back. You sell the installed system to a finance house for a lump sum, then lease it back and carry on using every kilowatt-hour exactly as before. The panels do not move; the ownership and the cash do.

It is a well-understood tool in commercial asset finance, used for everything from plant and vehicles to manufacturing lines. Applied to an owned solar system it lets a business release capital without touching its overdraft or diluting equity. This guide explains how it works, when it makes sense, and the tax traps a finance director needs to price in before signing.

What sale-and-leaseback actually does

The mechanics are straightforward. A funder values your existing solar installation, pays you an agreed sum, and takes legal title. You then sign a lease — usually a finance lease over five to seven years — and pay rentals to use the asset you formerly owned outright. At the end of term you typically buy the system back for a nominal sum or roll into a secondary rental.

The appeal is the lump sum. A business that spent £180,000 on a rooftop array eighteen months ago can convert most of that back into working capital, then redeploy it into stock, a second site, an acquisition, or simply a stronger cash position. You keep the energy savings and the export income throughout; only the ownership changes hands.

This is distinct from financing a new install. If you have not bought the system yet, you would normally use hire purchase, an equipment loan or a finance lease from day one rather than buy with cash and refinance later. Sale-and-leaseback is specifically for capital already committed. We arrange both the refinance and sale-and-leaseback route and the up-front options, so the right tool depends on where your spend already sits.

When it makes sense — and when it does not

Sale-and-leaseback works best when three things are true: the system is recent and in good condition, you have a use for the released capital that earns more than the cost of the lease rentals, and your covenant supports the funding. If the capital just sits in the bank, you are paying a finance margin for no return — that is rarely worth it.

It tends to suit:

• Businesses that paid cash to hit a year-end deadline or a grant condition and now want the capital working again.
• Owner-managers funding diversification or a second project without a new bank facility.
• Companies that over-capitalised on a fit-out and need to rebalance liquidity.

It is a poor fit if the array is old, if the resale value the funder offers is heavily discounted, or if your accounts cannot carry the rentals comfortably. Always weigh the lump sum against the total rentals over the term — this is the same total-cost-of-credit discipline that applies to every financed purchase, and the headline figure rarely tells the whole story.

The tax points to watch

This is where sale-and-leaseback needs care, because selling an asset you have claimed allowances on can trigger a tax charge.

Capital allowances and the balancing charge

Solar PV is special-rate (integral-feature) expenditure. When you bought the system you could claim the Annual Investment Allowance at 100% on up to £1m of qualifying spend in the year, with a 50% first-year allowance on anything above that. Both 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 it does.

The catch on a sale-and-leaseback: if you have already written the asset down through your capital allowances pool and then sell it, the disposal proceeds are deducted from the pool. Where the proceeds exceed the pool’s remaining value, HMRC can raise a balancing charge — effectively clawing back relief you previously claimed and adding it to taxable profit. The size depends on how much you wrote off and the sale price the funder pays. It is not always large, but it must be modelled before you commit, not discovered afterwards. Our capital allowances guide explains the special-rate position in full.

Once the funder owns the system, the allowances pass to them. Under a finance lease the lessor usually claims them and reflects the benefit in lower rentals; you no longer claim allowances yourself but the lease rentals are deductible against profit.

Grant clawback

If any part of the original installation was grant-funded, check the grant terms before you sell. Many public and regional schemes attach a clawback clause that is triggered by a change of ownership or by the asset leaving the business within a defined period. Selling to a funder can breach that condition and oblige you to repay the grant. This catches people out, so confirm it early.

VAT and accounting

VAT-registered businesses can reclaim VAT in the normal way; on the leaseback the VAT is spread across the rentals rather than paid up front. On the accounting side, revised FRS 102 brings most leases on-balance-sheet for lessees for accounting periods beginning on or after 1 January 2026, with short-term and low-value leases exempt. A leaseback will therefore typically appear as a right-of-use asset and a lease liability, which matters for covenant ratios — flag it to your funders.

Refinance as an alternative

You do not always need a full sale-and-leaseback. If the goal is simply to release cash without giving up ownership, a straight refinance — borrowing against the asset through an equipment loan — can be cleaner. You keep title, keep the allowances and keep the Smart Export Guarantee income, and you avoid the balancing-charge and grant-clawback questions that a true disposal raises. The trade-off is that a secured or unsecured loan against an existing asset may release a smaller sum than an outright sale.

Which route wins depends on your tax position, the age of the system and how much capital you need. This is exactly the kind of comparison worth modelling properly rather than guessing, and it is also why owning via asset finance generally beats a PPA: under a PPA the third-party funder keeps the allowances and the export income, whereas owning — even with refinanced debt against it — keeps both with your business.

Getting an indicative figure

Releasing capital from solar you already own is one of the more bespoke things we arrange, because the number turns on the system’s condition, its original cost, what you have already claimed, and your covenant. The honest answer to “how much can I release” is always “let us look at the install and the accounts” — but an indicative range comes back quickly.

If you own a commercial solar system and want to understand what a sale-and-leaseback or refinance could free up — and what the balancing charge and any grant terms would cost you — request an indicative quote and we will model it whole-of-market against the alternatives before you commit to anything.