How to Track Expenses as a Tradesperson (Without Spreadsheets)

You finished a kitchen refit last month. The client paid £18,000 and you felt good about it. But how much did you actually spend on materials, fuel, skip hire, and that extra day your sparks needed? If the honest answer is "not sure" — you're not alone, and you're probably not as profitable as you think.

Most tradespeople are brilliant at the work and terrible at tracking costs. It's not a character flaw — it's a time problem. You're on site from 7am, covered in dust by lunchtime, and the last thing you want to do at 6pm is type numbers into a spreadsheet. But the tradespeople who actually make good money — not just good turnover — are the ones who know exactly what every job cost them.

This guide covers what to track, how to track it without losing your mind, and why per-job expense tracking is the single most important habit you can build for a profitable trade business.

1 Why Most Tradespeople Don't Track Expenses

Let's be honest about why expense tracking doesn't happen. It's not that you don't care about money — it's that the traditional methods are painful enough to avoid.

• You're too busy doing the actual work. You're on site all day, driving between jobs, picking up materials, dealing with clients. Sitting down to do admin is the last priority — and tracking expenses feels like the most tedious kind of admin.
• Receipts live in the van. That Screwfix receipt goes in your pocket, then the dashboard, then a carrier bag in the footwell, then eventually a shoebox under the stairs. By January you've got a pile of faded thermal paper and no idea which job they relate to.
• You only think about it at tax time. Once a year, you or your accountant spend a miserable weekend sorting through bank statements and trying to reconstruct what you spent. You claim what you can remember and hope HMRC doesn't ask questions.
• Spreadsheets are boring. You tried a spreadsheet once. It lasted two weeks. Entering line items after a ten-hour day on site is nobody's idea of a good evening.

The result? You know your turnover but not your profit. You know the client paid you, but you don't really know if you made money on the job. And when you quote the next similar job, you're guessing rather than using real data.

Here's the uncomfortable truth: a builder turning over £120,000 a year who doesn't track expenses properly might be netting £25,000 — or £45,000. Without tracking, you genuinely don't know. And you can't fix what you can't see.

2 What Expenses Should You Actually Track?

The list is longer than most tradespeople realise. Here's everything that counts as a legitimate business expense — and every one of these eats into your job profit if you don't account for it.

Direct Job Costs

• Materials — timber, plasterboard, fixings, pipe, cable, paint, adhesives, tiles, bricks, blocks, cement, sand, aggregate. Everything you buy from merchants, Screwfix, Toolstation, or builders' yards.
• Subcontractor costs — sparks, plumber, plasterer, tiler, roofer. Anyone you pay to do work on a job.
• Plant and tool hire — excavator hire, scaffolding, cherry picker, specialist tools you rent for a specific job.
• Skip hire and waste disposal — typically £250-£400 per skip, and a renovation can easily eat 3-5 skips.
• Consumables — drill bits, saw blades, sanding discs, silicone, tape, dust sheets. Small individually but they add up to hundreds per job.

Running Costs (Overheads)

• Fuel — diesel for the van, driving to site, merchants' runs, tip runs. At current fuel prices, a tradesperson driving 25,000 miles a year is spending £3,000-£5,000 on fuel alone.
• Vehicle costs — van lease or finance, insurance, MOT, servicing, tyres, breakdown cover. A mid-range trade van costs £400-£600/month all-in before fuel.
• Insurance — public liability, employer's liability, professional indemnity, tool insurance, van insurance. Easily £1,500-£3,000/year combined.
• Phone and data — your mobile is a business tool. The business portion of your phone contract is claimable.
• PPE and workwear — boots, hi-vis, hard hats, dust masks, gloves, knee pads. Budget £300-£500/year.
• Tool purchases and replacement — drills, saws, levels, laser measures, battery packs. A working tradesperson spends £500-£2,000/year replacing and upgrading tools.
• Parking and congestion charges — especially in cities. London ULEZ alone is £12.50/day if your van doesn't comply.
• Accountancy fees — typically £500-£1,200/year for a sole trader or small limited company.
• Software and subscriptions — estimating tools, accounting software, cloud storage.

If you're only tracking materials and ignoring everything else, you're seeing maybe 60% of your actual costs. The other 40% is invisible — which is exactly why you feel busy but not wealthy.

3 The Shoebox vs Spreadsheets vs Apps

There are really only three ways tradespeople track expenses. Here's an honest look at each.

The Shoebox Method

Stuff every receipt in a bag/box/drawer, hand it to your accountant once a year, and let them sort it out. It's low-effort during the year but creates a nightmare in January. Your accountant charges more because the work takes longer, you miss claimable expenses because receipts are lost or illegible, and you have zero visibility into per-job costs during the year. Tax compliance: just about. Business intelligence: zero.

Spreadsheets

Better than the shoebox. You can categorise expenses, track by job, and see running totals. The problem is discipline — it takes 15-20 minutes a day to keep a spreadsheet current, and most tradespeople abandon it within a month. Spreadsheets also can't capture receipt images, don't work well on a phone screen, and become unwieldy once you're running multiple jobs. Tax compliance: good if maintained. Business intelligence: decent if maintained. Reality: rarely maintained.

Expense Tracking Apps

The practical middle ground. Photograph a receipt on your phone and it's logged in seconds. The best apps extract the amount, date, and supplier automatically using OCR (optical character recognition), let you allocate costs to specific projects, and sync with your accountant. The daily time investment drops from 15 minutes to 30 seconds per receipt. Tax compliance: excellent. Business intelligence: excellent. Sustainability: high because it's fast enough to actually do.

The best expense tracking system isn't the most sophisticated one — it's the one you'll actually use every day. If photographing a receipt takes 5 seconds, you'll do it. If it takes 5 minutes, you won't.

4 How to Track Expenses on the Go

The key to consistent expense tracking is capturing costs at the moment they happen — not at the end of the week, not at the end of the month, and definitely not at the end of the tax year.

Receipt Capture

• Photograph every receipt immediately. Before it goes in your pocket, snap it with your phone. This takes literally 3 seconds and means you'll never lose a receipt again.
• Use an app that reads the receipt for you. Good OCR will pull out the total, date, and merchant name automatically. VoxTrade does this and lets you assign the expense to a specific project in the same step — so you know exactly what each job is costing you.
• Capture merchant account statements too. If you have trade accounts at Jewson, Travis Perkins, or similar, photograph the monthly statement as a backup to individual receipts.

Fuel Tracking

• Log mileage by job if you use the simplified mileage method. HMRC allows 45p per mile for the first 10,000 miles and 25p after that. If you use actual costs instead, track every fill-up.
• Keep fuel receipts. Pay-at-pump receipts fade fast — photograph them before they become blank thermal paper.

Voice Logging

Sometimes you can't stop to type. You've just paid a subcontractor in cash, or you've bought materials from a merchant who doesn't give itemised receipts. In those moments, being able to say "paid Steve the plasterer £800 for the kitchen skim" and have it logged as an expense against that project is genuinely useful. VoxTrade supports voice expense logging for exactly this reason — speak the cost, assign the project, and it's recorded.

5 Per-Project Expense Tracking

Here's where expense tracking stops being a tax chore and starts being a business tool. Tracking your annual totals tells you what you spent. Tracking per project tells you which jobs made money and which ones didn't.

Consider this example. You complete two bathroom refits in the same month:

• Bathroom A: Client paid £8,500. Materials cost £2,800, subcontractor (tiler) £1,200, skip £350, fuel and parking £120. Total costs: £4,470. Your gross profit: £4,030 (47% margin).
• Bathroom B: Client paid £9,200. Materials cost £3,600 (client wanted premium tiles), subcontractor (tiler + plumber) £2,100, two skips £600, fuel £180, parking £80, extra day for snag list £250. Total costs: £6,810. Your gross profit: £2,390 (26% margin).

Without per-job tracking, you'd see a combined income of £17,700 and feel good about it. With per-job tracking, you'd see that Bathroom B — the bigger job — made you significantly less money per day than Bathroom A. That's information you can use when quoting the next bathroom job.

The single most valuable thing expense tracking gives you isn't a lower tax bill — it's accurate data for your next quote. When you know exactly what the last kitchen extension cost you, you'll never underquote the next one.

Per-project tracking also helps you spot patterns. Maybe you consistently underquote plumbing materials. Maybe your fuel costs on jobs more than 20 miles from base eat a bigger chunk of profit than you expected. Maybe certain types of job are reliably profitable while others barely break even. You can't see any of this without allocating expenses to projects.

6 Making It Stick

The biggest challenge with expense tracking isn't choosing a tool — it's building the daily habit. Here's what works for tradespeople who actually stick with it.

• Scan every receipt before it leaves your hand. Standing at the Screwfix counter? Photograph the receipt before you walk to the van. It takes 3 seconds. Do it every single time until it's automatic.
• Log expenses at the end of each day. If you've missed anything during the day — a cash payment, a parking ticket, a fuel stop — spend 2 minutes before dinner logging it. Not 20 minutes. Not an hour. Two minutes.
• Review weekly. Every Friday afternoon (or Sunday evening if that's your style), spend 10 minutes reviewing the week's expenses. Check nothing's missing, make sure everything's allocated to the right project, and glance at your running costs per job.
• Don't try to back-fill. If you miss a week, don't try to reconstruct it perfectly. Log what you can from bank statements and move forward. A slightly incomplete record that you maintain consistently is infinitely better than a perfect record that you abandoned in February.
• Make it as frictionless as possible. The fewer taps between "I have a receipt" and "it's logged against this job," the more likely you are to do it. That's why trade-specific apps that scan receipts and allocate to projects in one step tend to stick better than generic tools.

You don't need to become an accountant. You just need a 30-second habit repeated consistently. Photograph every receipt, log every cost, review every week. After a month of doing this, you'll have better financial visibility than 90% of sole-trader tradespeople in the country.

Wrapping Up

Tracking expenses as a tradesperson isn't complicated — it's just easy to skip. The receipts pile up, the spreadsheet gets abandoned, and by year-end you're guessing your way through a tax return and hoping the numbers look right.

The fix is simple: capture costs as they happen, allocate them to projects, and review weekly. You don't need a degree in accounting. You need a phone, 30 seconds per receipt, and a tool that makes it easy enough that you'll actually do it.

The payoff isn't just a cleaner tax return — it's knowing which jobs make you money and which ones don't. That knowledge makes every future quote more accurate, every pricing decision more confident, and every year more profitable.

For more practical guides on running a profitable trade business, browse the VoxTrade blog.