Tax9 June 2026· 10 min read

What Can a Self-Employed Electrician Claim on Tax? (UK 2026)

Every allowable expense you claim legally reduces your taxable profit — and every £1,000 of expenses saves you roughly £200–£400 in tax and National Insurance. This guide covers every expense category relevant to UK self-employed electricians.

The rule HMRC uses

An expense is allowable if it is incurred wholly and exclusively for the purposes of your trade. If something is used partly for business and partly personal (e.g. your phone), claim only the business proportion. Keep receipts for everything — HMRC can ask for evidence going back 6 years.

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Tools and test equipment

  • Screwdrivers, wire strippers, crimping tools
  • Multifunction electrical testers (18th edition compliance)
  • Loop impedance, RCD, and insulation resistance testers
  • Thermal imaging camera (for fault finding)
  • Drill, fixings, cable management tools
  • Tool bag, belt, and storage
HMRC note: Claim as regular expenses or capital allowances for expensive items. Tools used exclusively for work are 100% claimable.
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Van and vehicle costs

  • Van insurance (business use)
  • Fuel or electricity for charging
  • Van service, MOT, and repairs
  • Loan or lease payments (capital element via capital allowances)
  • AA/RAC breakdown cover
HMRC note: Choose: actual costs (apportioned for business use %) OR 45p/mile first 10,000 miles, 25p after (HMRC approved mileage rate). Do not mix methods.
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Workwear and PPE

  • Branded work trousers, shirts, fleeces
  • Safety boots (to BS EN ISO 20345)
  • Class 2 hi-vis vest
  • Electrical-rated gloves
  • Safety glasses
  • Hard hat for site work
HMRC note: Only clothing that is exclusive to work. Generic clothing you could wear off-site is not claimable.
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NICEIC/NAPIT registration and certification

  • Annual scheme membership fees (NICEIC, NAPIT, SELECT, ELECSA)
  • Re-assessment and competency assessment fees
  • Additional category registration fees
  • Building Regulations notification fees
  • Electrical Installation Condition Report (EICR) stationery/certificates
HMRC note: 100% claimable. These are directly required to operate as a registered electrician.
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Insurance

  • Public liability insurance (minimum £1m, £5m standard)
  • Professional indemnity insurance
  • Employers liability (if you employ anyone)
  • Tools in transit insurance
HMRC note: 100% allowable. Business insurance is a core operating cost.
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Phone and technology

  • Business proportion of your mobile phone bill
  • Invoicing software (TraderInvoice, etc.)
  • Electrical design software
  • Tablet or laptop for site surveys and documentation
HMRC note: Claim the business proportion only. If your phone is 80% business use, claim 80% of the total cost.
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Training and development

  • 18th Edition (BS 7671) training and exam
  • EV charger installation qualification
  • Solar PV installation training
  • Inspection and testing (2391) qualification
  • First aid certificate renewal
HMRC note: Claimable if training maintains or updates skills for your current trade. Initial qualifications to enter a new trade are generally not claimable.
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Home office (if you do admin at home)

  • Proportion of home internet
  • Proportion of electricity for home office use
  • HMRC simplified rate: £6/week flat rate (no receipts needed)
HMRC note: Use the £6/week simplified rate (£312/year) unless you have a dedicated room and track actual costs. You cannot claim mortgage interest or rent.

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Frequently Asked Questions

Can a self-employed electrician claim the cost of test equipment?

Yes — electrical test equipment (multifunction testers, PAT testers, loop impedance testers, RCD testers, thermal imaging cameras) is fully allowable as a business expense. For expensive test equipment (over £1,000 typically), it is claimed as a capital allowance under the Annual Investment Allowance (AIA) — which currently allows 100% first-year deduction for qualifying plant and equipment. For lower-cost items, claim them as regular business expenses.

Can I claim my NICEIC or NAPIT registration fees?

Yes — your NICEIC, NAPIT, SELECT, or other competent person scheme registration fees are fully allowable business expenses. These fees are directly necessary for operating as a registered electrician, so they reduce your taxable profit in full. Annual renewal fees, re-assessment fees, and any fees for adding additional categories to your registration are all claimable.

Can a self-employed electrician claim clothing on tax?

Only workwear and PPE that is solely for work purposes is claimable. This includes branded work trousers and shirts if they have your logo, safety boots, hard hats, hi-vis jackets, protective gloves, and electrical-rated PPE. Ordinary clothing that you could wear outside of work (smart trousers, everyday boots) is not claimable even if you wear them on the job. The test is whether the clothing is exclusively for work.

Can a self-employed electrician claim EV vehicle costs?

Yes. If you use an electric van for business, you can claim either the actual running costs (electricity for charging, insurance, servicing, finance payments) as a proportion of business use, or use HMRC's mileage rates for electric vehicles. The current advisory electricity rate for EVs is 9p per mile (as of 2026) — lower than the 45p flat rate for petrol/diesel vehicles under the approved mileage rate scheme. For most electricians, claiming actual costs on an EV will be more favourable than the mileage rate.

Related guides

Pricing

Electrician Day Rate UK 2026: How Much to Charge

Invoicing

How to Invoice as a Self-Employed Electrician UK

Tax

What Can a Self-Employed Plumber Claim on Tax?

MTD

Making Tax Digital for Tradespeople: Complete Guide

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