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BAS & IAS lodgements, on time, every cycle.

Monthly, quarterly or annual Business Activity Statements and Instalment Activity Statements — reconciled to your books, reviewed by a Chartered Accountant, lodged through the ATO portal under our TPB Tax Agent registration.

What we lodge

Activity statements, handled cleanly.

BAS and IAS aren’t glamorous. But late lodgements, GST coding errors, and unreconciled BAS positions cause more avoidable trouble than almost any other compliance task.

Coverage i.

We prepare and lodge activity statements for sole traders, partnerships, Pty Ltd companies, trusts, and not-for-profits — from one-person businesses with quarterly BAS to multi-entity groups running monthly cycles.

What’s covered

  • GST — calculation and reconciliation. Sales-side and purchase-side GST review against your accounting file, GST coding correction where needed, BAS-to-ledger reconciliation.
  • PAYG withholding (W1, W2, W3, W4). Payroll-derived withholding, contractor withholding under voluntary agreement, and TFN withholding obligations.
  • PAYG instalments (T1, T2). ATO-issued instalments, plus variations where business circumstances have changed materially.
  • FBT instalments. Quarterly FBT instalments where applicable, with annual FBT return preparation as a separate engagement.
  • Fuel tax credits. Calculation and lodgement for eligible business activities.
  • Wine equalisation tax (WET) & LCT. For wine producers and dealers, and for luxury car importers/dealers.
  • IAS lodgements. For entities not registered for GST but withholding PAYG, or required to lodge instalments.

What’s included as standard

Included

  • BAS-to-bank reconciliation
  • GST coding sample review
  • Payroll withholding tie-out
  • ATO portal lodgement
  • Lodgement confirmation & payment notice

Optional add-ons

  • Monthly bookkeeping (Xero / MYOB / QuickBooks)
  • Payroll preparation & STP lodgement
  • Annual FBT return
  • GST registration / cancellation
How a quarterly BAS engagement runs

The cycle, end-to-end.

If you’ve had previous BAS pain — missed deadlines, GST surprises, late-night reconciliations — this is what changes.

Cycle 04

i. Quarter close (week 1 after period end)

You confirm the quarter is closed in your accounting system — bank feeds reconciled, supplier invoices entered, payroll posted. We handle this for you if bookkeeping is bundled.

ii. BAS preparation & reconciliation (week 2)

We pull the GST and PAYG figures, reconcile against the general ledger and bank, sample-check coding, and identify any anomalies before lodgement.

iii. Review & sign-off (week 3)

Draft BAS sent to you with a one-page summary: what you’re lodging, why the position differs from last quarter (if it does), and what’s due to the ATO. You sign off.

iv. Lodgement & confirmation

BAS lodged via the ATO portal under our Tax Agent registration. Lodgement receipt and payment notice sent to you the same day. Calendar reminder set for the next quarter.

Common questions

Things people ask us.

Do you only do BAS, or do I need to bundle bookkeeping too?

BAS-only is fine if your bookkeeping is well-maintained in Xero, MYOB, or QuickBooks — we just need clean data. If your books need work, we offer a combined bookkeeping + BAS engagement priced as a fixed monthly fee.

What happens if my BAS reveals I owe a lot more than expected?

We don’t lodge surprises. If the position is materially different from your expectation, we discuss it with you before sign-off. If cash flow is the issue, we can also help you negotiate a payment arrangement with the ATO — the earlier you act, the better the terms typically are.

Can you lodge a BAS that’s already overdue?

Yes. As your registered Tax Agent, we get an extended lodgement window compared to direct lodgers. Late BAS still attract failure-to-lodge penalties from the ATO, but we can lodge them quickly and, where appropriate, prepare a remission request based on your circumstances.

What software do you work with?

We work directly with Xero, MYOB, QuickBooks Online, and Reckon. If you’re still on spreadsheets or desktop accounting, we can help you migrate — cloud accounting makes BAS preparation dramatically faster and reduces error risk.

Can BAS be lodged annually instead of quarterly?

Sometimes — for entities below the GST turnover threshold, annual GST reporting may be available. We’ll check eligibility and recommend the right cadence based on your cash flow profile.

Ready to simplify your BAS cycle?

Free 20-minute call. We’ll review your current setup and quote you a fixed monthly or quarterly fee.