The word "bookkeeping" makes most tradespeople's eyes glaze over. It sounds like paperwork, like sitting at a desk, like things that belong to a different kind of business.
Here's the reality: keeping adequate financial records as a solo or small contractor is a 15-minute-per-week task if you have the right setup. This is that setup.
You don't need double-entry accounting or depreciation schedules. For a solo or small trades business, good bookkeeping means four things:
1. You know what you earned this month, quarter, and year.
2. You know what you spent, broken down by category.
3. You have records to support your tax deductions if you're ever audited.
4. You can produce a simple profit and loss summary at any time.
That's it. Everything else is handled by your tax professional at filing time or simply isn't necessary at your scale.
1. A dedicated business bank account. Non-negotiable. All business income in, all business expenses out, through this one account. Never mix personal and business transactions.
2. A simple tracking spreadsheet. An income log with columns for date, client, job number, amount, and payment method. An expense log with date, description, category, and amount. That's the entire system.
3. A receipt habit. Every business receipt photographed immediately and saved to a Google Drive folder labeled by month. Takes 10 seconds — do it in the parking lot before you drive away.
Pick a day and time — most contractors use Friday afternoon — and protect this appointment like a paying job. It pays you back far more than it costs.
5 minutes: Log all income from the week — client name, amount, payment method, job number.
8 minutes: Log all expenses from your bank account and card. Enter by category.
2 minutes: Quick sanity check. Totals look right? Any unidentified transactions?
Every Friday you do this is a Friday you don't have to do it at tax time.
Once a month, run a one-line profit and loss summary: total income, total expenses by category, net profit. Compare to last month. Does anything look off?
Once a quarter, go deeper. Which job types generate the most actual profit? Is any overhead category creeping up? What's your profit margin this quarter vs. last? Are you on pace for your quarterly tax payment?
These reviews transform your tracking from record-keeping into real business intelligence.
A spreadsheet system works perfectly until you have employees, multiple vehicles with complex depreciation, or revenue above roughly $250,000/year. At that point, accounting software starts earning its keep.
But start here first. Understand your numbers in the simplest format before adding complexity. The contractors who struggle most with accounting software are the ones who jumped to it before understanding their finances at a basic level.
The Trades Money Kit Income & Expense Tracker is a pre-built spreadsheet for exactly this system — all 5 categories, automatic totals, 60+ rows ready to fill from day one.
Get the Expense Tracker — $47 Bundle