how to calculate day rate self employed trades
How to Calculate a Profitable Day Rate (Beyond Just Your Wage)
Your day rate isn't your wage divided by working days - it's your wage plus everything it costs to be in business, divided by the days you'll actually bill. Get that second part wrong and you can be booked solid all year and still be skint by February.
The classic beginner mistake is dividing by 260 - every weekday in the year - and ignoring overheads entirely. Here's the honest way to build the number, step by step, with a worked example.
Step 1: Set your target annual pay
Start with what you want to take home. A useful floor is what a decent employed tradesperson earns in your area - if you're carrying all the risk of self-employment, you should clear more than someone on the books. For the worked example, let's say £38,000.
Step 2: Total your true business overheads
This is the bit most people skip. Everything below comes out of your rate before you earn a penny:
- Public liability and tool insurance
- Van finance or lease, plus servicing and tyres
- Fuel for the year
- Tool replacement and depreciation - that £600 combi drill doesn't last forever
- Phone and software subscriptions
- Accountancy
- Training, cards and certification renewals
Counted honestly, a one-van sole trader typically lands somewhere around £8,000-£10,000 a year. We'll use £9,000. Tool depreciation deserves a special mention because it's invisible until it isn't: nothing leaves your bank account this month, but every drill, breaker and level is quietly wearing out. A sensible habit is to total what your kit would cost to replace, divide by its realistic life in years, and put that figure in the pot. If your van's full of gear worth £6,000 that lasts five years on average, that's £1,200 a year whether you notice it or not.
Step 3: Add holiday, sick and pension
An employer funds holiday pay, sick cover and a pension contribution. You don't have an employer. If you want four weeks off, the odd sick day and anything resembling a retirement, the money comes from your day rate. Add a realistic allowance - say £5,000 for the example.
Step 4: Work out your realistic billable days
365 days, minus 104 weekend days, minus holiday, minus the days you spend quoting, doing paperwork, collecting materials, rained off or between jobs. Most trades genuinely bill around 200-220 days a year. Dividing by 260 is how people end up busy and broke. We'll use 210.
- 365 days in the year
- Minus 104 weekend days = 261
- Minus around 25 days holiday and bank holidays = 236
- Minus around 15 days quoting, admin and merchant runs = 221
- Minus around 10 days weather, sickness and gaps between jobs = around 211 billable days
Step 5: Divide, then add profit on top
Worked example: (£38,000 + £9,000 + £5,000) ÷ 210 = around £248 a day break-even. Add a 15% profit margin and you're at around £285 a day. Profit isn't greed - it's what pays for the new van, the quiet January and the job that goes wrong. A business with no margin is one bad month from being a hobby.
Now see what the classic mistake does: £38,000 ÷ 260 = around £146 a day. Charge that and every overhead in step 2 comes straight out of your take-home. That's a gap of well over £100 a day - tens of thousands a year - hiding in one lazy division.
Step 6: Sanity-check against your market
If your number is far above local rates, don't panic-cut it. Either trim real overheads, or move towards work that supports the rate - smaller outfits often win on speed, tidiness and communication rather than price. If you must come down, know exactly which line you're sacrificing, because the costs don't vanish just because the rate did.
From the tools: In my brother's first year as a self-employed spark he priced himself at £150 a day - his old employed wage divided by 260, near enough. He was booked out for months and still had nothing left after the van insurance renewal landed in November. When we sat down and did this exact exercise at his kitchen table, his real break-even came out at about £230. He moved to £260, braced for customers to walk - and lost almost nobody. One landlord with six properties didn't even blink. The work was the same; the maths underneath it finally wasn't lying to him. He cleared more in the next six months than in the previous twelve.
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