Best Invoicing App for Electricians UK 2026: NICEIC Compliance, EIC Invoices and CIS Subcontractor Billing

UK Electrician Invoicing Checklist

Every invoice you issue as a UK electrician should include the following. Missing items can cause late payment, disputes, or HMRC queries.

• Business name and address — your trading name, registered address or principal place of work
• Invoice number — sequential, unique reference for each invoice
• Invoice date and due date — statutory payment terms are 30 days for business-to-business unless agreed otherwise
• Customer name and address — full name or company name and site address
• Description of work — include circuit references, consumer unit details or test schedule references for EIC work so the invoice ties back to the certificate
• Labour and materials itemised separately — critical for CIS; the contractor needs to identify the materials element to apply the correct deduction rate
• VAT at 20% or domestic reverse charge note — standard rate applies for most domestic and end-user commercial work; if DRC applies, state "Reverse charge — customer to account for VAT to HMRC"
• VAT registration number — required if you are VAT registered
• NICEIC or NAPIT registration number — must appear on invoices and certificates for Part P notifiable work
• EIC or MWC certificate reference — note the certificate number on the invoice for domestic installation work
• CIS deduction line — if you are a subcontractor under CIS, the main contractor will deduct 20% (or 30% if unverified) from labour; show this as a separate line if self-billing, or note it for your records
• Payment terms and bank details — sort code, account number and any card payment link

Best Invoicing Apps for Electricians UK 2026

App Reviews

Sleepless Tradesman

Sleepless Tradesman offers a free invoicing tier specifically built for UK sole trader tradespeople including electricians. The app generates professional PDF invoices with VAT support, CIS deduction lines, and card payment links so customers can pay directly from the invoice. The free plan covers everything a sole trader electrician doing domestic and light commercial work needs day-to-day, without a monthly subscription.

Ratings methodology: Based on hands-on testing against real UK tradesperson workflows, reviewed August 2026. Disclosure: Sleepless Tradesman is our own product — treat that row with appropriate scepticism; competitor ratings reflect direct platform testing.

You can attach documents including EIC and EICR PDFs to invoices and send them together in one email to the customer. The homeowner marketplace means domestic customers can find and book you directly through the platform. The main limitation is that the domestic reverse charge must be handled as a manual note in the invoice description — there is no dedicated DRC toggle, so you need to know what to write. For high-volume commercial subcontract work, a dedicated accounting integration may also be needed.

Tradify

Tradify is a well-regarded job management platform popular with electricians and other trades in the UK, Australia and New Zealand. It produces professional-looking invoices, handles VAT settings correctly, and integrates with Xero and QuickBooks for accounts — which is useful if you have a bookkeeper or use accounting software separately. The job management workflow, from quote to job sheet to invoice, is polished and suits electricians running a small team.

The weaknesses are cost and CIS. At £39–49 per month it is a meaningful overhead for a sole trader. There is no native CIS support — you would handle CIS manually or through your accountant via the Xero integration. There are no certificate-specific workflows either; attaching EIC certificates is manual via the document attachment feature. For electricians working entirely in domestic or small commercial markets without a CIS requirement, Tradify remains a strong option.

Powered Now

Powered Now is a UK-built field service management app with strong trade-specific features. It handles VAT correctly, supports the domestic reverse charge, and has one of the most integrated certificate workflows available — you can complete compliance certificates within the app and attach them directly to the invoice in one step rather than exporting a separate PDF. The NICEIC registration number field is a named field rather than a manual note, which is a useful detail.

The trade-off is that Powered Now is a smaller product with a less polished interface than some competitors. CIS support is described as basic rather than full — it covers the deduction calculation but may not produce the formal CIS statements that a main contractor requires. The pricing ranges from £19 to £89 per month depending on features and number of users. For a sole trader electrician doing a mix of domestic Part P work and light commercial, Powered Now is worth trialling.

ServiceM8

ServiceM8 is an Australian-origin field service app with a clean, well-designed invoice workflow and strong mobile experience. It handles UK VAT correctly and produces well-formatted PDF invoices. The job management flow is clear, the scheduling features are useful for electricians running multiple jobs, and the pricing starts low at around £9 per month for light use. Document attachments allow you to send EIC certificates alongside invoices.

The limitations are CIS and the pricing model. ServiceM8 uses a per-job pricing model at higher tiers, which can become expensive for electricians doing high volumes of smaller jobs — for example, multiple small domestic rewires or testing jobs in a week. CIS is not natively supported, so subcontractors working under a main contractor will need to manage deductions manually or through an accountant. For a smaller electrician focused on domestic installation work, the pricing and workflow are solid.

Simpro

Simpro is an enterprise-grade field service management platform with a strong presence in the UK and Australian commercial electrical market. It is built for contractors running PPM (planned preventive maintenance) contracts — the platform automates recurring contract invoicing, tracks asset-level testing records across multi-panel commercial sites, and provides job costing across complex commercial projects. For a commercial electrical contractor managing maintenance contracts with multiple sites, Simpro does work that no general invoicing app can match.

The trade-offs are significant for smaller operations. There is no free tier and pricing starts from around £45+ per user per month at the lower end, rising considerably for larger teams. Setup is complex — Simpro typically requires onboarding support and takes time to configure correctly for your invoice templates, contract structures and VAT settings. CIS reverse charge requires manual configuration rather than a built-in toggle. For domestic and light-commercial sole trader electricians, Simpro is overkill and the cost is hard to justify. It is the right choice for commercial electrical contractors who have outgrown general job management apps.

Domestic Reverse Charge: A Quick Guide for Electricians

The domestic reverse charge (DRC) for construction services has applied since March 2021 and catches many electricians doing commercial subcontract work. It applies when you are a VAT-registered subcontractor, your customer is also VAT-registered and will use your service to make a further taxable supply (i.e. they are not the end user), and the work falls within the Construction Industry Scheme — which covers most electrical installation, rewiring and testing work on commercial buildings. When DRC applies, you do not add VAT to your invoice. Instead, write the net amount, note the applicable VAT rate (20%), and add a clear statement: "Reverse charge applies — customer to account for VAT to HMRC under section 55A VAT Act 1994." The main contractor then accounts for the output VAT in their own VAT return. You should not collect VAT from them. Domestic work for homeowners, and commercial work where you are supplying directly to an end user (such as a business occupying their own premises and not making a further supply), is not affected — you charge VAT at 20% as normal on those invoices.

Best Invoicing App for Electricians: Our Verdict

For most sole trader electricians doing domestic Part P work and occasional light commercial jobs, Sleepless Tradesman is the strongest choice on cost grounds — the free tier covers invoicing, VAT, CIS and document attachments without a monthly subscription. If you want a more complete job management platform and can absorb the monthly cost, Tradify is polished and well-suited to electricians running a small team. ServiceM8 suits electricians who do most of their work on iOS and want strong job scheduling alongside invoicing. For commercial electrical contractors running PPM maintenance contracts across multiple sites, Simpro is the specialist platform — it automates contract invoicing, tracks asset-level testing records and handles multi-panel job costing at a level no general invoicing app matches, though the cost and setup complexity make it unsuitable for sole traders.

Frequently Asked Questions

Related Guides

• Best Job Management App for Electricians UK
• Electrician Certification UK: EIC, EICR and Part P Explained
• Best Invoicing App for Sole Traders UK
• Sleepless Tradesman vs Tradify: Full Comparison