Does an electrician need to include their NICEIC or NAPIT number on invoices?
- There is no strict legal requirement to include your NICEIC or NAPIT registration number on a standard invoice — it is legally required on Building Regulations certificates and installation certificates, not invoices. However, including it on your invoices is strongly recommended. It builds customer confidence, demonstrates you are a registered competent person, and differentiates you from unregistered electricians. TraderInvoice lets you store your certification number in your account settings so it appears automatically.
What should an EV charger installation invoice include?
- An EV charger installation invoice should include: the charger make, model and serial number, installation address, a note of the OZEV/OLEV grant reference if applicable, your NICEIC or NAPIT registration number (required for the installation certificate), labour hours, materials (cabling, consumer unit work, outdoor enclosure), and any smart charging test/commissioning labour as a separate line. Where a government grant has been applied, show both the full price and the grant amount as a deduction.
Do electricians need to separate labour and materials on invoices?
- For domestic work it is best practice but not legally mandatory. For CIS subcontract work it is essential — the 20% CIS deduction applies to labour only, not materials. Separating labour and materials also helps customers understand your pricing and reduces disputes. It is good practice for all electrician invoices regardless of whether CIS applies.