A worked electrician invoice
INVOICE
INV-2026-0042
Your business name
Your address, Town, Postcode
07000 000000
Bill to
Harewood Lettings Ltd
5 Bond Court, Leeds, LS1 2JZ
Work carried out
Consumer unit replacement and EIC — Flat 3, 44 Cardigan Road
| Description | Qty | Unit | Amount |
|---|---|---|---|
| Consumer unit replacement — labour | 1 | £320.00 | £320.00 |
| Consumer unit (18th edition, 10 way) | 1 | £145.00 | £145.00 |
| Electrical installation certificate | 1 | £60.00 | £60.00 |
| Subtotal | £525.00 | ||
| VAT at 20% (only if registered) | £105.00 | ||
| Total due | £630.00 | ||
EIC issued on payment. Work carried out to BS 7671.
Why it's laid out like that
The lines follow how the job was actually priced: labour priced by the job or the day, materials such as consumer units and accessories, and a separate charge for testing and certification. Each part is separately checkable, which is the whole point — a customer who can verify the bill pays it.
On completion for a single install, with the certificate issued at the same time. For rewires, invoice at first fix, second fix and test.
Common questions
- Should the electrical certificate be a line on the invoice?
- Yes. Testing and certification is real chargeable time, and showing it separately makes clear the customer is paying for compliance paperwork as well as installation.
- Do electricians need to show a Part P or BS 7671 reference?
- It is not a legal invoicing requirement, but landlords, agents and conveyancing solicitors routinely ask for it, so putting it on the invoice saves a phone call later.
- How should I invoice a rewire?
- In stages — first fix, second fix and test — with each invoice naming the stage it covers. It protects your cash flow and matches how the customer experiences the job.
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