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GST & BAS Services

Whether you’re a sole trader or company, registered for GST or considering it, managing your quarterly BAS obligations can be confusing and time-consuming. That’s where OneTax comes in.

We take the hassle out of BAS preparation and lodgement. Our experienced tax professionals ensure that your GST is calculated accurately, reconciled against your accounts, and lodged on time — every time. We also provide IAS support, PAYG withholding guidance, and end-of-year compliance summaries.

Our goal is to keep your business compliant, prevent ATO penalties, and help you understand what you owe and why — in plain English.

We Offer The Benefits

GST and BAS can feel overwhelming — but not with OneTax. We go beyond form-filling with a complete review of your financial data to ensure every lodgement is correct. We also assist with GST coding, bookkeeping accuracy, and industry-specific reporting needs (especially for trade, e-commerce, and service-based businesses).

  • GST registration & setup
  • Quarterly BAS preparation & lodgement
  • GST calculations & reconciliation
  • PAYG instalment and withholding reporting
  • BAS reviews and error corrections
  • ATO correspondence & representation

Any questions find here

You must register if your business turnover exceeds $75,000 annually. We can assess and register you if required.

We can work with the ATO to request extensions or negotiate penalties if you’ve fallen behind.

Yes, if you’re registered for GST and have valid tax invoices for business purchases.

Absolutely — we specialise in supporting new and growing businesses.