EXPIRING APRIL 2026!
Maximise Tax Benefits with Commercial Solar Panels for UK Businesses
Take Advantage of the Annual Investment Allowance (AIA) to Deduct 100% of Your Solar System’s Cost—Panels, Inverters, Batteries, and More—Directly from This Year’s Profits
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Example of using AIA for a Solar Installation.
Calculate your tax saving using our AIA Calculator
EXPIRING APRIL 2026!
Which Solar
Assets Qualify?
Under AIA, all new plant and machinery you purchase for your solar installation business qualifies for relief. This includes solar panels and inverters, battery storage systems, mounting frames, wiring, meters and any directly associated equipment.
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(Note: business cars, assets acquired before business use, and gifts to the business are excluded.)
You Can Claim AIA When using HP Loans.
hire‑purchase agreements allow you to claim AIA on the outstanding capital element once the equipment is in use (interest is excluded), partially business‑used items must be apportioned to reflect only their commercial use, and later disposals of assets on which you’ve claimed AIA may trigger a balancing charge to adjust your taxable profits.
We'll Gather Your
Qualifying Solar Spend & Dates
We’ll prepare a detailed breakdown of every solar asset you’ve acquired—panels, inverters, batteries, mounting gear—along with each item’s contract date or payment‑due date, so you know exactly what qualifies under AIA.
01.
Calculating
Your AIA Claim
Ensure your total qualifying expenditure stays within the prorated £1 million cap for the accounting period. Any spend above the limit should be split into writing-down allowances, and only the business proportion of partly business-related items should be claimed.
02.
Include Your AIA
Figures in Your Tax Return
On your annual company tax return (CT600) or self‑assessment (SA100) enter your total qualifying expenditure within the prorated £1 million cap for the accounting period. Any spend above the limit should be split into writing-down allowances, and only the business proportion of partly business-related items should be claimed.