Content reviewed and verified by Graham Chee, with FCPA-led practice at Local Knowledge, Mascot NSW. Continuous CPA Australia member since 1986. Prior career at Goldman Sachs, BNP Investment Management and Merrill Lynch..
TL;DR
You do not need complex systems — you need the right ones, kept current. A clear guide for Sydney sole traders and freelancers.
Key Takeaways
- A separate bank account for the business — the single most valuable habit you can adopt
- Every business expense captured, with the receipt kept, so no deduction is lost
- GST registration and BAS lodgement once your turnover reaches the threshold
- Money set aside regularly for income tax and, if registered, GST
- Records kept for the ATO-required period, ideally digitally
Simple, But Not Optional
Being a sole trader lowers the complexity — not the obligations.
As a sole trader in Sydney, your business income is reported in your personal tax return, which makes your structure refreshingly simple. But simple does not mean informal: you still need accurate records of income and expenses, you may need to register for and report GST, and you are responsible for setting money aside for your own tax.
Good bookkeeping for a sole trader is really about three things — knowing your true income, capturing every legitimate deduction, and never being surprised by a tax or GST bill. Get those right and the rest looks after itself.
The Sole Trader Essentials
A separate bank account for the business — the single most valuable habit you can adopt
Every business expense captured, with the receipt kept, so no deduction is lost
GST registration and BAS lodgement once your turnover reaches the threshold
Money set aside regularly for income tax and, if registered, GST
Records kept for the ATO-required period, ideally digitally
A simple monthly check so you always know where you stand
Do You Need to Register for GST?
The threshold that changes your obligations.
You must register for GST once your business turnover reaches the registration threshold (currently $75,000 a year), or immediately if you drive for a rideshare service. Below that, registration is optional — and sometimes worthwhile if you want to claim GST credits on purchases.
Once registered, you charge GST on your sales, claim it on eligible purchases, and report through a Business Activity Statement. Many sole traders find this the moment bookkeeping shifts from “nice to have” to genuinely necessary — and the moment a principal-led partner earns its keep by keeping the whole thing accurate and on time.
A Ten-Minute Weekly Habit
Reconcile
Match the week’s transactions in your software so income and expenses are current.
Capture Receipts
Photograph and attach receipts as you go so deductions are never lost.
Set Aside Tax
Move a percentage of income into a separate account for tax and GST.
Check the Number
Glance at your income and expenses so there are no surprises at BAS or tax time.
Sole Trader Bookkeeping Questions
Q.Do I really need a separate bank account?
It is not legally required for a sole trader, but it is strongly recommended. A separate account makes bookkeeping faster, deductions clearer, and any ATO review far simpler.
Q.How much should I set aside for tax?
It depends on your income and marginal rate, but setting aside a fixed percentage of every payment received is the habit that prevents a nasty surprise. We help you choose a realistic figure.
Q.When do I have to register for GST?
Generally when your annual turnover reaches $75,000, or straight away for rideshare driving. We confirm the current threshold and whether voluntary registration suits you.
Q.What records does the ATO expect me to keep?
Records that explain your income and expenses — invoices, receipts and bank records — kept for the required period. Cloud software with attached receipts makes this effortless.
About the Author
Graham Chee, FCPA, CPA, GRCP, GRCA
Principal and Founder, Local Knowledge
Graham Chee is the principal and founder of Local Knowledge, an FCPA-led Australian practice that brings institutional-grade compliance, investment-structure and intellectual-property experience directly to owner-managed businesses. Graham is a Fellow of CPA Australia (FCPA since November 2005, continuous CPA member since 1986) and holds the OCEG Governance, Risk & Compliance Professional (GRCP) and Governance, Risk & Compliance Auditor (GRCA) designations. His prior career includes senior roles at Goldman Sachs, BNP Investment Management and Merrill Lynch. Graham was previously portfolio manager of the Asian Masters Fund (IPO December 2007 – 31 December 2009), which returned +29% in AUD terms versus the MSCI Asia Pacific (ex Japan) benchmark. He signs off on 100% of client files personally.
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This article is general information only and does not constitute financial, tax or accounting advice. Rates, thresholds and lodgement dates change and depend on your circumstances — Graham Chee, FCPA confirms the current position for your business before you act.
Graham Chee FCPA, CPA, GRCP, GRCA · Principal, Local Knowledge · Mascot NSW · CPA-signed files