The UK electrician’s guide to invoicing that actually gets paid

An electrician’s invoice has to do more than list a total. Done well, it speaks the language of the job (circuits, RCBOs, EICR codes), gets you paid without a follow-up call, and keeps HMRC happy at quarter-end. Here’s what that looks like in practice.

What actually needs to be on it

Beyond the legal basics (your business details, invoice number, date, client address), the lines that matter for trade work are the ones a customer can check against what they saw you do:

• Labour and materials split separately, not lumped into one line
• A short description per line — “Supply & install 30mA RCBO, kitchen ring” beats “Electrical work”
• The property address, if it’s different from the billing address
• VAT shown separately at 20%, with your VAT number if you’re registered
• Clear payment terms and a due date — not just “payment expected”

If the job came off the back of an EICR, tie the invoice line back to the observation code (C1/C2/C3/FI) — it gives the customer confidence the charge maps to a real fault, not just a round number.

VAT, without the spreadsheet

If you’re VAT registered, every invoice needs the VAT shown at the correct rate, and you need a running total for your quarterly return. Doing this by hand in a spreadsheet is where most trade businesses lose hours every quarter — and where mistakes creep in. Quill calculates VAT per invoice automatically and rolls it up into a quarterly summary with an HMRC-ready CSV export, so quarter-end is a five-minute job, not a Sunday.

Chasing payment is the wrong plan

“Bank details on the PDF, hope they pay it” is the default for most trades, and it’s why so many electricians spend Friday afternoons chasing customers for proof of payment. Two changes fix most of this:

• Put a payment link directly on the invoice (Stripe or PayPal) so paying takes one tap, not a trip to online banking
• Connect your business bank account so incoming payments are matched to invoices automatically — you find out you’ve been paid from your dashboard, not from a customer’s reply three days later

That combination — a payment link plus automatic bank matching — is the single biggest change most trade businesses can make to get paid faster, and it’s built into every Quill invoice.

Recurring work and repeat customers

If you do a maintenance contract, a monthly retainer, or any repeat job for the same client, set the invoice up once as a recurring schedule instead of rebuilding it every time. It removes an entire category of “forgot to invoice this month” from your business.