VAT for Electrical Contractors — The 2026 Guide

You must register if your VAT-taxable turnover in the last 12 months goes over £90,000 (from the end of the month it crossed, you have 30 days to register), or if you expect turnover in the next 30 days alone to go over £90,000. The threshold has been £90,000 since 1 April 2024 and the deregistration threshold is £88,000. Register late and HMRC can backdate your registration, so you owe VAT on sales you made without charging it.

You can register voluntarily below the threshold. Benefits: recover input VAT on tools, vehicles, materials, scheme fees, insurance, training. Drawbacks: you must charge VAT on every invoice — customer-pay sole traders (domestic homeowners) absorb this as extra cost. Worth doing if: majority of customers are VAT-registered (commercial), high material / tool spend, planning to grow quickly past £90k anyway.

Since March 2021, the Domestic Reverse Charge (DRC) applies to most construction services between VAT-registered businesses. If you sub-contract to another VAT-registered electrical contractor: you do NOT charge VAT on the invoice. You write "Reverse charge: customer to pay VAT to HMRC" on the invoice and the customer accounts for the VAT. Get this wrong and you and your customer both face penalties. Direct-to-end-customer work is NOT under DRC — normal VAT applies.

Standard rate: 20%, for most electrical work. Zero rate: installing qualifying energy-saving materials in residential accommodation, including solar panels, heat pumps, batteries and their controls, until 31 March 2027, after which it reverts to 5%. It covers supply and installation together; materials sold on their own are standard-rated. New-build dwellings can also be zero-rated for the builder. Check each job against HMRC’s VAT Notice 708/6 for energy-saving materials.

On the Flat Rate Scheme you pay HMRC a fixed percentage of your VAT-inclusive turnover and generally cannot reclaim input VAT. The usual percentages for electricians are 9.5% for general building or construction services and 14.5% for labour-only work, but if you spend less than 2% of turnover (or under £1,000 a year) on goods you are a limited cost trader and pay 16.5%, which often makes the scheme worse than standard accounting. Electricians who buy materials for jobs usually do better on standard VAT accounting.

Construction VAT has more traps than most trades: the reverse charge, zero-rated energy-saving work, and mixed supplies. A bookkeeper or accountant who knows construction can set up Making Tax Digital software, file quarterly returns and check your invoices are worded correctly.

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