BAS & IAS Compliance for Melbourne Businesses
BAS & IAS Accountant Melbourne – Accurate Lodgement, Timely Advice
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For Small Businesses & Growing Companies
Avoid Last-Minute Stress — Stay Ahead of BAS & IAS Deadlines
Managing your BAS and IAS isn’t just about lodging forms — it’s about staying in control of your cash flow and avoiding unnecessary penalties.
At 42 Advisory, we work closely with you to:
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Prepare and review your BAS accurately
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Communicate every deadline in advance
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Give you time to make payments comfortably
We ensure your reports reflect your true position, manage any ATO communication, and help you plan ahead so there are no surprises. Learn more about ATO due dates.
Founders, Clinics, and Brands Who Trust Our Numbers
What Our Clients Are Saying
Very professional, highly recommended!!!
Paul M
Extreme MMA
42 have been outstanding for our clinic. They handle our Tax, BAS, payroll, and complex medical structures with absolute precision.
Belinda C
PM of Family First Medical Centre
As an online retailer, our sales move quickly across multiple platforms. 42 Advisory built clear reporting, managed our inventory accounting
Katerina P
CEO of Watches of Mayfair
Fantastic service and such an easy experience from start to finish. My accountant made everything clear and stress-free. Highly recommend!
Maria P
Founder of MWM Pilates
Complete BAS & IAS Accounting Support
Accurate Lodgements. Clear Timelines. No Surprises.
We manage the entire BAS/IAS process — from preparation and review to submission and follow-up — ensuring full ATO compliance and predictable planning.
Core Services Include:
✅ BAS Preparation & Lodgement – Quarterly or monthly lodgements prepared accurately, with review for GST, PAYGW, PAYGI and FBT accuracy.
✅ IAS Management – Monthly instalment activity statements managed proactively to avoid missed payments.
✅ Calendar Management & Reminders – We communicate due dates early and provide reminders to ensure you’re always ahead.
✅ Payment Planning & Cash Flow Timing – We plan your lodgements to align with cash flow, giving you time to pay comfortably.
✅ ATO Payment Plans – We liaise with the ATO to set up, manage, or review payment plans that meet your compliance requirements.
✅ PAYG Instalment Variations – Adjust instalments to match your current financial position and reduce overpayment.
✅ Compliance Review & Reconciliation – Regular checks to ensure your BAS and IAS align with your actual records and reports
Why Businesses Trust 42 Advisory for BAS & IAS
Proactive. Organised. Always One Step Ahead.
Our approach is simple — no last-minute surprises, no confusion, and no missed deadlines.
We help you manage your BAS and IAS obligations efficiently, while keeping your business cash flow steady and predictable.
Our proactive calendar and regular communication keep you informed of all due dates, payment amounts, and ATO requirements — so you’re always prepared.
We provide a fixed-fee service without surprises. Learn more about fixed fee vs hourly billing
“We speak your language — timing, planning, and compliance.”
Because great accounting isn’t just about numbers — it’s about giving you peace of mind.
YOU MAY NEED TO KNOW
Frequently Asked Questions About BAS & GST in Melbourne
What is the GST threshold in Australia?
The current GST registration threshold is $75,000 in annual turnover ($150,000 for non-profit organisations).
If your business turnover exceeds this amount — or is expected to — you must register for GST and begin lodging Business Activity Statements (BAS).
Even if your turnover is below $75,000, you may voluntarily register if it improves your cashflow position or commercial credibility.
For Melbourne SMEs, reviewing this threshold before EOFY is critical to avoid unexpected compliance obligations.
Who needs to lodge a BAS?
You must lodge a Business Activity Statement (BAS) if your business is registered for GST.
This includes:
- Sole traders
- Companies
- Trusts
- Partnerships
Your BAS reports:
- GST collected and paid
- PAYG withholding
- PAYG instalments
- Other ATO obligations
If you operate in Melbourne and are unsure whether registration is required, it’s important to assess turnover before crossing the threshold.
Do I need to register for GST if I earn under $75,000?
If your turnover is under $75,000, GST registration is generally not compulsory.
However, voluntary registration may be appropriate if:
- Your clients are GST-registered businesses
- You incur significant GST on expenses
- You want to present as an established operation
We regularly advise Melbourne startups and growing businesses on whether voluntary registration strengthens or weakens their financial position.
What is the difference between a BAS and an IAS?
A Business Activity Statement (BAS) is issued to businesses registered for GST.
An Instalment Activity Statement (IAS) is usually issued when:
- You need to report PAYG withholding
- You pay PAYG instalments
Many businesses receive IAS before crossing the GST threshold, then transition to BAS once registered.
Understanding the distinction avoids incorrect reporting and missed lodgements.
How often do I need to lodge a BAS?
Most small to medium businesses lodge BAS quarterly.
Standard quarterly due dates are:
- 28 October
- 28 February
- 28 April
- 28 July
If you use a registered tax agent, you may be eligible for extended lodgement deadlines.
Businesses with a turnover exceeding $20 million may lodge monthly.
Can I do my own BAS?
Yes — you can lodge your own BAS using:
- ATO Online Services
- Accounting software such as Xero
- MyGovID-linked platforms
However, common errors include:
- Incorrect GST coding
- Claiming ineligible input tax credits
- Failing to reconcile payroll withholding
- Misreporting PAYG instalments
For established SMEs, professional oversight significantly reduces audit exposure and improves cash flow forecasting accuracy.
Do I need a BAS agent or an accountant to lodge BAS?
You are not legally required to use an accountant.
However, using a registered BAS Agent or Tax Agent ensures:
- Correct GST treatment
- Compliance with current ATO rulings
- Accurate PAYG reconciliation
- Reduced penalty risk
- Strategic advice beyond compliance
42 Advisory is a registered tax agent servicing Melbourne businesses and professionals.
How much does a BAS agent cost in Melbourne?
Fees vary depending on:
- Transaction volume
- Payroll complexity
- Reconciliation quality
- Advisory requirements
Typical Melbourne pricing ranges:
- Sole trader (simple): $220–$450 per quarter
- SME with payroll: $300–$900 per quarter
42 Advisory operates on a fixed-fee subscription model, integrating BAS compliance into ongoing advisory rather than reactive billing.