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Pay, Payroll & Working Time

What is a Tax agent?

Updated 23 July 2026 5 min read

A tax agent is a professional registered with the Tax Practitioners Board (TPB) to charge a fee for preparing and lodging income tax returns and providing tax advice. In Australia it is illegal to charge for tax agent services without registration, so registration is the key credential to check before hiring anyone to do your tax.

This glossary article about tax agent provides general information about Australian employment law and workplace practices. It does not constitute legal, HR, or professional advice and should not be relied on as a substitute for advice specific to your business, workforce, or circumstances.

What a tax agent does

A registered tax agent can charge to:

  • Prepare and lodge income tax returns for individuals and businesses
  • Provide advice about your tax obligations, entitlements and liabilities
  • Deal with the ATO on your behalf
  • Generally also provide BAS services

Most accountants who do tax work are registered tax agents. Registration — not just a qualification — is what legally allows them to charge for it.

Registration and the TPB

The Tax Practitioners Board (TPB) registers and regulates tax agents under the Tax Agent Services Act 2009. Registration requires set qualifications, relevant experience, insurance and adherence to a Code of Professional Conduct. Always confirm a preparer's registration on the TPB public register before you engage them.

Tax agent vs BAS agent

Both are registered with the TPB, but their scope differs. A BAS agent is registered for BAS services — GST, PAYG withholding, and lodging the BAS — and is often a bookkeeper. A tax agent has a broader authorisation that also covers income tax returns and tax advice. If someone charges to do your tax return, they must be a tax agent, not just a BAS agent.

Key takeaways

A tax agent is TPB-registered to charge for tax returns and tax advice — the credential to verify before paying anyone to handle your tax. It's a broader registration than a BAS agent's. Check the TPB register, and for staff-heavy businesses choose one confident with payroll and award interpretation.

Steve Harris

Written by

Steve Harris

Workforce Management and HR Strategy Expert

Steve Harris has spent over a decade advising businesses in hospitality, retail, healthcare, and other fast-paced industries on how to hire, manage, and retain great staff. At RosterElf, he focuses on sharing actionable advice for business owners and managers — covering everything from smarter interview techniques and compliance with Australian employment laws, to building positive workplace cultures.

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