Bookkeeping for Australian Sole Traders: A Practical Guide

Running a business as a sole trader in Australia comes with a lot of freedom — and a fair amount of paperwork. Most sole traders handle their own bookkeeping until it gets too complicated, too time-consuming, or until the ATO sends a letter that prompts a very stressful conversation with an accountant.

There’s a better way to manage it. Here’s what you actually need to know.

The Basics: What Sole Trader Bookkeeping Must Cover

Income tracking

Every dollar you earn needs to be recorded. This includes invoiced income, cash payments, and any other revenue — including gig work, freelance income, or sales through platforms like Etsy or eBay.

For GST purposes, if your turnover reaches or is likely to reach $75,000 in a financial year, you must register for GST and report it in your BAS. Below that threshold, GST registration is optional — but worth considering if your clients are registered businesses who can claim input tax credits.

Expense tracking

Every business expense that’s legitimate and directly related to earning your income can be claimed as a deduction. This includes equipment, software subscriptions, professional development, home office costs (if you work from home), vehicle use, and contractor fees.

The key: you need a record of every expense. A receipt, an invoice, a bank statement entry. The ATO can ask for evidence of any deduction, and “I spent it but don’t have the receipt” is not a valid response.

BAS lodgement

If you’re registered for GST, you need to lodge a Business Activity Statement (BAS) either quarterly or monthly, depending on your reporting period. The default for most sole traders is quarterly.

BAS due dates for the 2025–26 financial year:

• Q1 (July–September): 28 October
• Q2 (October–December): 28 February
• Q3 (January–March): 28 April
• Q4 (April–June): 28 July

Missing these dates attracts penalties from the ATO — starting at $330 per 28-day period for most small businesses.

Super contributions (if you employ anyone)

If you engage contractors who are primarily paid for their labour, you may have superannuation obligations for them even if they’re not on your payroll. This is a common trap for sole traders who use contractors regularly.

From 1 July 2026, Payday Super also comes into effect — requiring super to be paid alongside wages rather than quarterly. If you employ anyone, this changes your payroll process.

The Tools Most Australian Sole Traders Use

Xero is the dominant accounting platform for Australian small businesses. It integrates with the ATO’s systems, makes BAS preparation straightforward, and connects to most Australian bank accounts via bank feeds. If you’re not already using it, it’s the place to start.

MYOB is the other major option — slightly more common in industries like construction and retail where it has established integrations.

Spreadsheets work for very simple sole trader operations but become unmanageable quickly as transaction volume grows. The time spent on manual data entry is rarely worth the cost savings compared to a proper accounting platform.

When to Get Help

Most sole traders reach a point where DIY bookkeeping is costing them more in time than it would to outsource it. Signs you’re there:

• You’re spending more than a few hours a month on bookkeeping
• Your BAS lodgements are regularly late or stressful
• Your records aren’t reconciled and you’re not sure what you actually owe
• You’re not confident about what you can and can’t claim

At Ease, we manage bookkeeping for Australian sole traders and small businesses as part of our accounting plans — monthly Xero reconciliation, BAS preparation and lodgement, and clear reporting so you always know where you stand.

Starting from $700/month for our Compliance plan.

easetechnical.com.au