Electricians · Setup9 June 2026· 10 min read

How to Start an Electrical Business UK: Complete Checklist (2026)

Starting an electrical business requires one additional step most trades skip — competent person scheme registration. Here is everything you need, in the right order.

The one thing most new electrical businesses miss

NICEIC or NAPIT registration takes 3–6 months from application to passing your assessment visit. Start this process on day one. You can start trading for non-notifiable work (fault finding, repairs, like-for-like replacements) while your registration is being processed — but you cannot self-certify notifiable new installations until you are registered.

Legal & HMRC registration

  • Register for Self Assessment with HMRC — free, within 3 months of startingDo first
  • Register for CIS as a subcontractor if you plan any commercial/subcontract work
  • Register for VAT when turnover exceeds or is projected to exceed £90,000

Competent person scheme (essential)

  • Apply for NICEIC, NAPIT, or ELECSA membership — begin application immediately, takes 3–6 monthsDo first
  • Book and pass the assessment visit — they will check your work, knowledge, and admin systemsDo first
  • Consider starting with Domestic Installer registration, then add Inspection & Testing later
  • Scotland: register with SELECT as well as NICEIC/NAPIT for Scottish commercial work

Insurance

  • Public liability insurance — minimum £1m, £5m recommended for electrical workDo first
  • Professional indemnity insurance — increasingly required by commercial clientsDo first
  • Van insurance — business use cover, not social and domestic onlyDo first
  • Tools in transit insurance

Test equipment

  • Multifunction tester (BS 7671 18th Edition compliant) — calibrated and in dateDo first
  • Ensure all test equipment calibration certificates are current — NICEIC will checkDo first
  • Clamp meter, voltage indicator, proving unit
  • PAT tester if you plan to offer PAT testing services

Van and tools

  • Reliable van — electrical vans need good organisation (drawers, racking)Do first
  • Comprehensive tool kit for domestic and light commercial work
  • Cable stock (2.5mm T&E, 6mm, 10mm) and common fittings for first jobs
  • Open a trade account with an electrical merchant (Rexel, CEF, Screwfix Pro)

Administration setup

  • Open a dedicated business bank accountDo first
  • Set up invoicing software — TraderInvoice is free for 5 invoices/monthDo first
  • Start a tax savings pot — set aside 25–30% of every paymentDo first
  • Set up an electronic certificate system for EICs and MIWCs

Getting first customers

  • Set up Google Business Profile immediately — free and critical for local searchDo first
  • Tell everyone you are going self-employed — personal network drives first customersDo first
  • Register on Checkatrade or TrustATrader for early leads
  • Ask every customer for a Google review

Frequently Asked Questions

Do I need to be NICEIC or NAPIT registered to work as a self-employed electrician?

You must be registered with a government-authorised competent person scheme (NICEIC, NAPIT, ELECSA, SELECT in Scotland, or similar) to self-certify notifiable electrical work in domestic properties under Part P of the Building Regulations. Without registration, notifiable work must be inspected and certified by Building Control — which adds cost and delay, making you uncompetitive. For commercial work, competent person scheme membership is not legally mandatory but is expected by most clients. NICEIC registration typically takes 3–6 months and requires an initial assessment.

How much does it cost to start an electrical business in the UK?

The main start-up costs are: van (£5,000–£20,000+ or lease), insurance (£500–£1,500/year for full cover), NICEIC/NAPIT registration (£500–£1,500 for initial assessment and first year), test equipment (£500–£2,500 if not already owned), and invoicing/software. If you already own a van and test equipment from employed work, the cash requirement drops significantly. HMRC registration is free. Many electricians go self-employed with £3,000–£5,000 in start-up capital.

Can I go self-employed as an electrician straight after qualifying?

Yes — there is no legal minimum time requirement before going self-employed. However, NICEIC and NAPIT registration requires demonstrating competence through an assessment, which is easier with some employed experience behind you. Most new NICEIC applicants have 2+ years of post-qualification experience. Starting self-employed with a Domestic Installer registration (covering most residential work) is a common route, with the ability to add categories (inspection and testing, commercial) as you gain experience.

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What Can a Self-Employed Electrician Claim on Tax?

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How to Invoice as a Self-Employed Electrician UK

Setup

How to Start a Plumbing Business UK

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