Best Invoicing App for Electricians UK 2026: EIC Certificates, Reverse Charge VAT and CIS Compared
Electricians face more invoicing complexity than most trades. VAT reverse charge applies on commercial subcontract work under the Construction Industry Scheme. CIS deductions must be itemised correctly when working as a subcontractor for a main contractor. EIC and EICR certificates need to travel with the invoice so customers have proof of compliance. NICEIC or NAPIT registration numbers should appear on all paperwork issued to customers.
Getting any of this wrong can create disputes, HMRC compliance problems or delayed payments — especially on commercial contracts where multiple parties and accountants review the invoice. This guide compares the best invoicing apps for UK electricians in 2026, covering the features that actually matter: reverse charge VAT handling, CIS deductions, certificate attachments and professional PDF templates with trade-specific fields.
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
Comparison: Best Invoicing Apps for UK Electricians 2026
| App | Cost | Free Plan | VAT / Reverse Charge | CIS | Cert Attachment | NICEIC Field |
|---|---|---|---|---|---|---|
| Sleepless Tradesman | Free + Pro | Yes | Yes | Yes | Yes (attachment) | Manual note |
| Tradify | £39–49/mo | No | Yes | No native | Yes | Manual |
| Powered Now | £19–89/mo | No | Yes | Basic | Yes (integrated) | Yes |
| ServiceM8 | £9–89/mo | No | Yes | No native | Yes | Manual |
| FreshBooks | £15–55/mo | No | Yes | No | Yes (attachment) | No |
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.
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.
FreshBooks
FreshBooks is an accounting-grade invoicing platform with strong MTD (Making Tax Digital) compatibility, time tracking, expense management and professional invoice templates. It produces very clean, customisable invoices and handles VAT correctly including reverse charge VAT scenarios. For an electrician who also wants proper accounting functionality — profit and loss, expense tracking, bank reconciliation — rather than a pure job management tool, FreshBooks covers more ground.
The weaknesses are that FreshBooks is not trade-specific. There is no CIS support, no certificate workflow, no job scheduling, and no NICEIC registration field. You are using a general-purpose invoicing tool and adapting it for trade work. Certificate attachments are possible but manual. For a VAT-registered sole trader electrician who wants accounting software that also does invoicing, FreshBooks is a reasonable choice, but it works best alongside a separate job management system rather than as a replacement for one.
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.
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. For electricians who need integrated certificate workflows and a NICEIC reference field built into the invoice, Powered Now is the most trade-specific option despite its smaller product size. If you are primarily looking for accounting software that also does invoicing and handles MTD, FreshBooks covers that ground well but is not a replacement for job management.
Frequently Asked Questions
What should an electrician's invoice include in the UK?
A UK electrician's invoice must include: your business name and address, invoice number, date, customer name and address, description of work (including circuit references for EIC work), labour and materials itemised separately (critical for CIS), VAT at 20% if registered, your VAT number if applicable, your NICEIC or NAPIT registration number for Part P work, and payment terms. For commercial construction projects above the VAT registration threshold, check whether the domestic reverse charge applies — you do not charge VAT on the invoice; the main contractor accounts for it instead.
What is the domestic reverse charge and when does it apply to electricians?
The domestic reverse charge (DRC) for construction services applies when: you are a VAT-registered subcontractor, your customer is also VAT-registered, the work falls under the CIS scheme, and the supply is not to an end user. In this case, you do not add VAT to your invoice — instead you note "Reverse charge applies" and the main contractor accounts for the VAT to HMRC. This affects electricians doing commercial subcontract work. Domestic work for homeowners and end users is not affected — you charge VAT as normal.
Can I attach an EIC certificate to my invoice?
Most job management and invoicing apps allow you to attach PDF documents to invoices — so you can attach the Electrical Installation Certificate or Minor Works Certificate as a PDF alongside the invoice PDF. Powered Now and Commusoft have more integrated certificate workflows. For a sole trader electrician, a simple attachment to the invoice email works fine. Always retain a copy of the EIC or EICR for your own records for at least six years.