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Most tradespeople set their day rate by asking what the bloke down the road charges, then knocking a tenner off to win the job. It feels safe. It is also the quickest way to work flat out and still wonder where the money went. A day rate is not a wage. It has to cover your pay, your tools, your van, your insurance, your tax, your holidays and the days you spend quoting, buying materials and chasing invoices.
This guide walks through the sums step by step, using round example figures so you can swap in your own. Nothing here is tax advice, so run the final numbers past your accountant, but the method will get you much closer than guessing.
Quick Verdict
Start from the income you need, add your running costs, then divide by the days you can realistically charge for, not the days in the working week. For most self-employed tradespeople that is somewhere between 180 and 220 chargeable days a year, not 260. Divide by the lower number and your rate goes up, which is exactly the point.
Why Guessing Your Day Rate Fails
Copying a rate from a mate or a job board ignores the things that are specific to you. Your van might be on finance. You might work alone with no labourer. You might be VAT registered, or sitting just under the threshold. Two sparks both charging the same rate can end up with very different take-home pay once those costs land.
There is also the matter of unbillable time. Every site visit that does not turn into a job, every hour in the merchant, every evening spent on invoices and quotes is time you are not paid for unless the rate covers it. Build it in from the start rather than hoping it all evens out.
Step 1: Decide What You Want to Take Home
Start with the annual take-home pay you actually need. Work backwards from your household budget: mortgage or rent, bills, food, childcare, the holiday, a bit of savings. Be honest here. If you pretend you can live on less than you can, you will underprice every job you quote.
Then add a pension contribution. Employees get an employer pension without thinking about it. You do not, so if you want to stop work one day, you need to pay yourself that money as well. Add a sensible figure now rather than regretting it later.
Step 2: Add Your Annual Business Costs
Next, list everything the business pays for before you take a penny. Be thorough. The ones people forget are the ones that hurt.
Vehicle
Van finance or depreciation, insurance, fuel, servicing, tyres, MOT, road tax, and any congestion or parking charges. A work van is often the single biggest running cost after your own pay.
Tools and Equipment
Budget for replacing and adding tools every year. Cordless batteries wear out, blades and bits are consumables, and test equipment needs calibrating. Treat tool spend as a regular cost, not a nice surprise. It is far easier to cover it from a planned allowance in your rate than from a bad month.
Insurance and Memberships
Public liability, tools cover, professional indemnity if it applies to your trade, and scheme or trade body fees. Gas Safe, NICEIC, NAPIT, CSCS and similar registrations all cost money every year, and you cannot work without them.
Admin and Software
Phone contract, accounting software, your accountant’s fees, a quoting or invoicing app, website or advertising costs. None of it is huge on its own, but together it adds up to a real figure.
Workwear and Consumables
Boots, gloves, dust masks, hi-vis, fixings, tape, sealant, sacks and cleaning kit. Customers rarely pay for these separately, so they have to live inside your rate.
Step 3: Allow for Tax and National Insurance
Your take-home figure is after tax, so you need to gross it up. As a sole trader you pay income tax and National Insurance on your profit, and if you are a limited company director the picture is different again. The simplest approach is to ask your accountant what gross profit you need to net your target figure, then use that number in the sums below.
If you are VAT registered, remember VAT is not yours. It passes straight through to HMRC, so your day rate should be worked out excluding VAT and the VAT added on top of the invoice. If you are under the threshold, you are not charging it, which is one reason some customers prefer small sole traders.
Step 4: Work Out Your Chargeable Days
This is where most people go wrong. There are about 260 weekdays in a year, but you will not be paid for all of them. Take off bank holidays, your own holiday, a sensible allowance for sickness and injury, and the time you spend quoting, buying, invoicing, and waiting between jobs.
| Item | Example days |
|---|---|
| Weekdays in the year | 260 |
| Bank holidays | -8 |
| Holiday you want to take | -20 |
| Sickness, injury, bad weather | -8 |
| Quoting, admin, merchant trips, gaps between jobs | -25 |
| Chargeable days | about 199 |
Your own figure will differ. A busy tradesperson with a full diary and a good admin routine might reach 220. Someone just starting out, with gaps while they build a reputation, might only manage 150. Be realistic, and if in doubt, go lower.
Step 5: Do the Maths
Now put it together. The formula is simple: (gross income you need + annual business costs) divided by chargeable days equals your minimum day rate.
| Line | Example figure |
|---|---|
| Gross income needed after tax is covered | £42,000 |
| Business costs (van, tools, insurance, admin) | £14,000 |
| Total to cover | £56,000 |
| Chargeable days | 199 |
| Minimum day rate | about £281 |
Those are made-up numbers, but the pattern holds. The rate that looks high at first glance is usually the one that just keeps you whole. If you were planning on £200 a day, the sum shows why the business felt tight.
Converting to an Hourly Rate
Divide the day rate by the hours you actually work on site, not the hours you spend on the job overall. If your day rate is £281 and you work an eight-hour day on site, that is about £35 an hour. Many customers will compare hourly rates, so it helps to know yours.
Step 6: Check It Against Your Market
Only now should you look at what others charge. Your sum gives you the floor. The market tells you whether there is room above it. Ask other tradespeople in your area, check what local jobs are advertised at, and think about what your specialism is worth.
If the market rate is below your floor, you have three options: cut your costs, increase your chargeable days, or specialise into work that pays more. Dropping below the floor is not an option unless you are happy to work for less than you need.
What Pushes a Rate Up
Qualifications and schemes that customers value, such as Gas Safe, 18th Edition, MCS or G98 and G99 knowledge for solar and battery work. Emergency or out-of-hours call-outs. Difficult access or dirty jobs. Work in London or other high-cost areas. A reputation for finishing on time and leaving the place clean.
What Pulls It Down
Long periods of unpaid travel, a saturated local market for easy work, and relying on one main contractor who knows you cannot walk away. If that last one sounds familiar, the fix is a wider customer base, not a lower rate.
Day Rate vs Fixed Price
A day rate suits jobs where the scope is uncertain, such as repairs, refurbishment, fault finding and working for another contractor. A fixed price suits well-defined work where you know how long it takes. Even when you quote a fixed price, work out the days it will take and multiply by your day rate, then add materials and a contingency. That way the price still reflects your sums.
Be careful about fixed prices on work with unknowns. Old houses, hidden pipework and customer changes of mind can eat days that were never in the quote. Write a clear scope, state what is excluded, and charge for variations.
Common Day Rate Mistakes
Forgetting Materials Handling
If you buy materials, you spend time picking, collecting and carrying them. Charge a handling margin on top of cost, or the time comes out of your day.
Discounting Without a Reason
Dropping your price to win a job rarely leads to better work later. Customers who negotiate hard on price tend to keep negotiating. If you do discount, make it specific: a quicker payment, a bigger job, or work that fills a known gap.
Never Reviewing the Rate
Fuel, insurance, materials and tool prices all move. Review your day rate at least once a year, and put it up in line with your costs. A small rise every year is easier for customers to accept than a big jump after three years of nothing.
How to Put Your Rate Up Without Losing Customers
Give existing customers notice, a short reason, and a date. Something like “My day rate is going up from the first of next month because of rising costs” is plain and fair. Most good customers accept it. The ones who walk away over a modest increase were probably the ones squeezing your margin anyway.
For new customers, simply quote the new rate. You do not need to apologise for it.
FAQs
What is a fair day rate for a UK tradesperson?
It depends on your trade, your region and your costs, so there is no single answer. The method above gives you a figure that works for your own situation. Compare it with local rates afterwards as a sense check, not as the starting point.
Should I include materials in my day rate?
No. Keep your labour rate and your materials separate. Charge materials at cost plus a handling margin, and show them as a separate line on your quote or invoice.
How many days a year should I plan to work?
Plan on around 180 to 220 chargeable days, depending on how busy you are. Using 260 will leave you short, because it assumes you are paid for holidays, sick days and admin.
Do I charge the same rate for every customer?
Not necessarily. Domestic, commercial and subcontract work all have different risks and payment terms. A contractor who pays on time every week might justify a slightly lower rate than a domestic customer who takes six weeks to pay, but only if your floor is still covered.
How often should I review my rate?
At least once a year, and any time a major cost changes. Put a reminder in your diary for the start of the new tax year, when you will already be thinking about the numbers.
The Bottom Line
A good day rate comes from sums, not from what everyone else is doing. Work out what you need to take home, add the real cost of running the business, divide by the days you can actually charge for, and check the result against your market. Then charge it with confidence. If you also work out how much your tools and van are costing you each year, you will find that the number is rarely as low as you thought.
Once your rate is set, keep it under review, quote clearly, and chase payment promptly. The best day rate in the world does not help if the invoice sits unpaid for three months.
