Profit Margins for Trade Businesses UK — What You Should Be Making and How to Improve (2026)

Ask most tradespeople how business is going and they'll tell you they're flat out. Diary full, phone ringing, jobs back to back. But ask them what they actually made last year after costs and many can't give you a clear answer. Being busy isn't the same as making money. Plenty of trade businesses turn over good revenue and still leave the owner with very little to show for it. Margin is what matters — and most tradespeople don't track it.

This guide covers the three profit metrics you need to understand, what the benchmarks look like for UK trade businesses in 2026, what kills your margins without you noticing, and five concrete actions you can take to improve them.

The three profit metrics that matter

1. Gross profit margin

Gross profit is your revenue minus your direct costs — the materials and subcontractor costs that are specific to each job. Gross profit margin is that number expressed as a percentage of revenue.

Formula: (Revenue − Direct Costs) ÷ Revenue × 100

For a sole trader doing primarily labour with some materials, gross margin should sit between 40% and 60%. If you're consistently below 30%, something is wrong — your pricing isn't covering your direct costs properly, you're over-specifying materials, or your subbies are costing more than you quoted for.

2. Net profit margin

Net profit is gross profit minus your overhead costs — everything it costs to run the business regardless of how many jobs you do. Van finance, insurance, phone, subscriptions, accountant fees, advertising, tool replacement. Net profit margin is what's left after all of that.

Formula: (Gross Profit − Overheads) ÷ Revenue × 100

A healthy sole trader should be netting 20–35%. If you're netting below 15%, your overhead base is too high relative to your revenue, or your gross margin isn't strong enough to absorb it.

3. Owner's earnings

For sole traders, net profit is your pay. There's no salary separate from it — what's left after all costs is what you take home. For limited company directors, it's more nuanced: you pay yourself a salary (which goes through the P&L as a cost), and net profit is what remains in the business after that salary. Owner's earnings is salary plus dividends — the total economic benefit you extract from the business.

Understanding which structure you're in matters when you benchmark yourself, because a limited company director paying themselves a market salary will show lower net profit than a sole trader doing the same work.

Industry benchmarks for UK trade businesses

These are realistic ranges based on typical UK trade business structures. Your exact numbers will vary by trade, geography, and how much of your work is labour versus materials.

• Sole trader, labour-dominant (electrician, plasterer, painter): Gross margin 60–80% — you're primarily selling your time, so direct material costs are low. Net margin 25–40% after overheads.
• Small firm with employees (2–5 vans): Gross margin 35–55% — employee costs eat into gross margin. Net margin 10–20% once management overhead and additional fixed costs are absorbed.
• Materials-heavy trades (heating, roofing, groundworks): Gross margin 25–45% — high material content naturally compresses gross margin. Net margin 8–18%. These trades need higher revenue volume to generate the same absolute profit as a labour-dominant sole trader.

If you're materially below these ranges and you've been in business more than two years, it's worth investigating why before taking on more work.

How to calculate your actual margins

The uncomfortable truth is that most tradespeople don't track this. Revenue sits in a bank account, materials go on a card, and at the end of the year the accountant tells you what you made. That's too late to act on.

To calculate your margins you need three numbers for a given period — ideally a quarter:

1. Total revenue — all invoices raised in the period
2. Total direct costs — materials purchased and subcontractor payments for those jobs
3. Total overhead costs — van, insurance, phone, subscriptions, accountant, advertising

Gross profit = Revenue − Direct Costs. Net profit = Gross Profit − Overheads. Divide each by revenue and multiply by 100 to get percentages. Do this quarterly and you'll spot problems before they compound.

What destroys margins

Most margin problems come from the same handful of causes:

• Under-pricing: Quoting without accounting for all costs. A common mistake is pricing labour and materials but forgetting travel time, parking, waste disposal, or the time spent managing the job. Those costs are real even if they're not on your materials receipt.
• Materials wastage: Buying more than you need and not returning unused materials. On a job with £2,000 of materials, leaving £150 of waste on site is a 7.5% hit to your materials margin on that job.
• Unbillable time: Driving to quote, doing admin, chasing invoices, waiting on site for access, re-visiting because a part was wrong. Every hour you're not billing is an hour you're absorbing as cost. If you're billing 6 hours in a 9-hour day, your effective rate is significantly lower than your day rate suggests.
• Late-payment costs: If a customer pays 60 days late on a £5,000 invoice, you've effectively given them a short-term loan. You've paid for materials, fuel, and your time — but the money hasn't landed. That costs you in overdraft interest, stress, and opportunity cost.
• Poor subcontractor management: Quoting for subbies at one rate and ending up paying more, or not properly scoping what they're doing so the job takes longer and you absorb the overrun.

Five ways to improve your margins

1. Raise your prices

This is the highest-leverage action available to most tradespeople and the one most are most reluctant to take. A 5% price increase on the same volume of work flows almost entirely to net profit, because your costs don't change. If your net margin is currently 20% on £80,000 revenue, a 5% price rise — with no other changes — takes net margin to around 24%. Most customers won't notice. The ones who leave were often your most price-sensitive, lowest-margin jobs anyway.

2. Apply a proper material markup

Materials aren't cost-neutral. You source them, transport them, store them, manage the returns, and take the risk if something is damaged or wrong. A 20–40% markup on materials is standard and justified. If you're charging trade price plus a token amount, you're leaving money on the table and subsidising your customer's build.

3. Increase billable utilisation

Reduce the proportion of your working day that's non-billable. Batch admin tasks into one slot rather than spreading them through the day. Optimise job sequencing to reduce drive time. Confirm access, materials delivery, and site readiness before you arrive rather than discovering a problem on site. Every extra billable hour per day at your day rate improves annual revenue without adding a single new customer.

4. Charge for surveys and quotes on larger jobs

For jobs above a certain value — say £3,000 or £5,000 — charge a survey or design fee, redeemable against the job if they proceed. This filters out time-wasters who are collecting quotes with no intention of committing, gets you paid for the expertise involved in accurately scoping complex work, and positions you as someone who takes their work seriously. Customers who won't pay £150 for a proper survey for a £10,000 job are telling you something useful about how they'll behave throughout the project.

5. Move toward higher-margin work

Not all jobs are created equal. Service and maintenance work — boiler servicing, annual safety inspections, planned maintenance contracts — tends to carry better margins than new installation work because the material content is lower and the jobs are more predictable. The same applies to repeat customers and service contract revenue, which reduces your cost of acquiring each job. If you're currently doing mostly one-off installation jobs, building a service book alongside it can significantly improve your blended margin.

Fix the margin before you scale

The most dangerous thing a trade business owner can do is take on more volume at bad margins. If you're making 12% net margin and you double your revenue, you've doubled your workload, your stress, and your complexity — and you've still got a 12% net margin. You've just got more of the same problem.

Growth amplifies whatever margin structure you already have. If that structure is healthy, growth is good. If it isn't, growth accelerates the loss. Get your margins right at current volume first. Understand what you're actually making and why. Then scale.

The businesses that come out ahead aren't always the busiest ones — they're the ones who know their numbers, price properly, and protect their margin at every job. That starts with tracking it.