Businesses with monthly reporting obligations—either due to GST turnover of $20 million+ or by choice—must lodge and pay BAS by the 21st day of the month following each reporting period. For example, a BAS for July is due by 21 August


🔹 Key Points

  • Due Date: 21st of the following month (e.g., July BAS due 21 August)
  • If the 21st falls on a weekend or public holiday, lodgment/payment rolls to the next business day
  • December BAS for monthly lodgers (GST turnover ≤ $10 million reporting monthly) is due by 21 January

✅ Why It Matters

  • Timely lodgment helps avoid penalties and interest
  • Small, regular payments improve cash flow management
  • Demonstrates compliance to the ATO and supports better record-keeping

🛠️ How to Lodge & Pay

  • Lodge online using SBR-enabled software or the ATO portal
  • Make payments via BPAY, EFT, credit/debit card, or direct debit
  • Use your unique PRN (Payment Reference Number) to apply payments

🔗 External References


Stay on top of your monthly BAS!
Win Professionals offers:

  • Automated reminders and scheduling
  • Regular reconciliation and error checks
  • Lodgment and payment services
  • Review of your reporting cycle suitability


Book a BAS management review today!