Most new electricians make the same mistake: they decide they want to earn £30-£40 per hour and use that as their rate. This ignores overheads, which are the real costs of running a business. Your hourly rate must cover everything, not just your take-home pay.
Here is how to calculate your true hourly rate:
Step 1: Calculate Your Annual Overheads
Add up every business cost for the year:
- Van (lease, insurance, fuel, maintenance, MOT): £6,000-£12,000
- Tools and equipment (replacement and calibration): £1,000-£3,000
- Insurance (public liability, professional indemnity, employers if applicable): £800-£2,000
- Competent person scheme registration (NAPIT, NICEIC, etc.): £400-£800
- Software and subscriptions (certification app, accounting, etc.): £500-£1,500
- Accountant fees: £500-£1,500
- Phone and data: £500-£800
- Workwear and PPE: £200-£500
- Training and CPD: £300-£1,000
- Marketing and website: £500-£2,000
- Office/storage costs: £0-£3,000
A typical sole trader electrician's annual overheads are £12,000-£25,000 per year.
Step 2: Calculate Your Available Billable Hours
You do not bill for 8 hours a day, 5 days a week, 52 weeks a year. Subtract holidays (5-6 weeks), sickness (1-2 weeks), admin time (quoting, invoicing, purchasing, travelling between jobs), and quiet periods. A realistic figure for a busy sole trader is 1,200-1,500 billable hours per year.
Step 3: Do the Maths
(Target salary + Annual overheads + Tax and NI provision) / Billable hours = Required hourly rate.
Example: (£45,000 salary + £18,000 overheads + £12,000 tax/NI) / 1,400 hours = £53.57 per hour. That is your minimum rate — charge less and you are losing money.
In the app
Hourly Rate Calculator — Know Your True Cost
Enter your target salary, overheads, and working hours. Elec-Mate calculates the hourly rate you need to charge to actually make the money you want after…