Money & tax
Bookkeeping for a handyman business
Nobody picks up a drill because they love ledgers. The good news: a one-person trade business needs shockingly little bookkeeping if you build two or three small habits early. Here’s the minimal system that keeps HMRC happy, your tax bill accurate, and January panic-free.
The two lists that are your books
Strip away the jargon and sole-trader bookkeeping is two running lists. Money in: every invoice you issue, with its date, customer, and whether it’s been paid. Money out: every business cost, with its receipt. Income tax is calculated on the difference, so the whole game is keeping both lists complete and provable. Bank statements, a mileage log, and records of equipment purchases support the two lists; in the UK you keep the lot for at least five years after the filing deadline.
Separate the money on day one
Open a second bank account and run every business transaction through it. Sole traders aren’t obliged to, but mixing job income with the weekly shop is the single decision that turns year-end into archaeology. With a dedicated account, your statement practically is your bookkeeping, and if HMRC ever asks questions the trail is clean. Pay yourself a regular transfer to your personal account and treat it as your wage.
What you can claim against tax
Allowable expenses reduce your taxable profit, which is why the receipts matter. The usual categories for a handyman:
| Category | Examples |
|---|---|
| Tools & equipment | Drills, ladders, blades, sharpening, repairs |
| Materials | Anything bought for a specific customer job |
| Vehicle | Mileage allowance, or actual fuel/servicing/insurance |
| Cover & subscriptions | Liability premiums, phone, job software |
| Workwear & safety | Boots, gloves, hi-vis, eye protection |
| Admin | Accountant fees, bank charges, stationery |
Rules and rates change; confirm current allowances (for example the mileage rate) with your tax authority before filing.
The 15-minute Friday routine
Bookkeeping goes wrong through postponement, not difficulty. A short, fixed slot each week beats a heroic quarterly catch-up every time:
- Photograph every receipt from the week and file it in one folder.
- Check each finished job has an invoice sent against it.
- Match payments received to invoices and flag anything overdue.
- Jot the week’s business mileage while the trips are still fresh.
Fifteen minutes weekly also surfaces the numbers that actually run the business: which customers owe you, which months are thin, and whether your rates are keeping pace with your costs.
Put money aside for the tax bill
The rhythm that catches new sole traders out is that tax arrives long after the income did, and payments on account can effectively front-load the second year. Skim a fixed percentage of every payment into a savings pot the day it lands. Around a quarter to a third covers most situations at typical handyman earnings, and an untouched surplus in January is a far better problem than a shortfall.
Do you need an accountant or software?
Early on, probably neither in full. A spreadsheet plus disciplined invoicing genuinely suffices below the VAT threshold. Where paid help earns its keep: your first year filing (a one-off accountant review catches missed claims), approaching VAT registration, hiring, or incorporating. What you should adopt from the start is proper invoicing rather than documents cobbled together per job, because numbered, consistent invoices are half of the “money in” list done for you.
Your “money in” list, automated
ServiceInvoice numbers every invoice sequentially, records what’s paid and outstanding, and keeps the history per customer. Come tax time, your income record already exists.
Start keeping cleaner recordsRelated reading
New to all of this? Begin with how to start a handyman business, then make sure your invoices carry everything the taxman and the customer expect.