BAS & IAS Preparation for
Australian Businesses
Accurate GST reconciliation and activity statement preparation — lodged on time, every quarter.
BAS Preparation Without the Bottleneck
BAS and IAS lodgements are time-sensitive and non-negotiable. Late or incorrect lodgements mean ATO penalties — and unhappy clients. Prime Solution Advisory provides fast, accurate BAS and IAS preparation so your firm never misses a deadline.
Our team is fully conversant with Australian GST legislation, ATO requirements, and all major lodgement cycles — quarterly, monthly, and annual.
BAS & IAS — We Handle Both
📋 Business Activity Statement (BAS)
Comprehensive preparation of quarterly or monthly BAS lodgements including:
- GST collected on sales
- GST credits on purchases
- PAYG withholding on wages
- PAYG instalments
- Wine equalisation tax (if applicable)
- Luxury car tax (if applicable)
- Fuel tax credits
📄 Instalment Activity Statement (IAS)
Accurate IAS preparation for businesses that report PAYG withholding monthly:
- PAYG withholding from employee wages
- PAYG withholding from contractors
- PAYG instalment variations
- Monthly reconciliation to payroll records
- Superannuation reconciliation
- Year-end PAYG summary preparation
We prepare all BAS and IAS statements for your review and lodgement. We work alongside registered BAS agents — supporting your lodgement process with accurate, reconciled data, ready for your sign-off before submission to the ATO.
We Work to Your Lodgement Schedule
| Statement Type | Frequency | ATO Due Date | Our Turnaround |
|---|---|---|---|
| BAS — Quarterly | 4x per year | 28th of month following quarter | 48 hours |
| BAS — Monthly | 12x per year | 21st of following month | 24–48 hours |
| IAS — Monthly | 12x per year | 21st of following month | 24 hours |
| Annual GST Return | 1x per year | 31 October | 3–5 business days |
Your Platform, Our Expertise
We work in your existing accounting software — no disruption to your current systems.
Why BAS Agents Trust Prime Solution Advisory
Never Miss a Deadline
Lodgement deadlines are tracked and managed — we deliver before your due date, every time.
GST Specialists
Deep knowledge of Australian GST law — input tax credits, mixed supplies, and GST-free items handled correctly.
Reconciled Output
Every BAS is reconciled to the general ledger and bank statements before it reaches you for review.
Direct Communication
Questions answered promptly via email or your preferred channel — no delays, no runaround.
Data Security
All client data handled under strict confidentiality agreements — NDA signed before access is granted.
Cost Efficient
Significantly lower cost than hiring locally — without compromising on accuracy or turnaround time.
Never Miss a BAS Deadline Again
Talk to us about supporting your BAS lodgement process — we’ll set up a workflow that fits your firm perfectly.
Get in Touch TodayFree consultation · Fast onboarding · ATO compliant