Do sole traders need to lodge a BAS?
Understand when a sole trader may need to lodge a business activity statement and what the ATO says about BAS obligations.
Summary
A sole trader may need to lodge a business activity statement, or BAS, if they are registered for GST or have other reporting obligations such as PAYG instalments or PAYG withholding. BAS obligations depend on the registrations and tax roles attached to the business.
What this means
A BAS is used to report and pay certain business taxes, most commonly GST for GST-registered businesses.
Not every sole trader lodges a BAS. The need to lodge depends on whether the ATO requires reporting for GST, PAYG instalments, PAYG withholding, or other obligations.
Typical actions
- Check whether you are registered for GST.
- Check ATO online services for BAS lodgment obligations.
- Keep records of sales, expenses, GST, and PAYG amounts where relevant.
- Lodge and pay by the due date if the ATO issues a BAS.
Official ATO sources
Last checked: 20 June 2026
Business activity statements
ATO hub for BAS information.
How to lodge your BAS
Explains BAS lodgment options.
Registering for GST
Explains GST registration, which commonly creates BAS obligations.
Related questions
- Do sole traders need to register for GST?
- What is a BAS?
- Do sole traders pay PAYG instalments?
- What records do sole traders need to keep?
Important notice: Tax Clarity is an independent information tool. This page provides general information based on official sources. It does not provide tax, legal, financial, or accounting advice. Tax rules can change, and how they apply depends on your circumstances. For advice about your situation, speak with a registered tax agent or qualified professional.
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