Your Trusted Partner in Financial Health and Business Growth
About Us
At Infinity Accounting & Advisory Services (IAAS), we help short-term rental (STR) and mixed STR + LTR property management businesses gain clarity, control, and confidence over their finances.
We are a Sydney-based Chartered Accounting firm specialising in the unique financial and trust-accounting challenges faced by STR managers — from OTA-driven cash flows and owner payouts, to trust compliance, reconciliation complexity, and scaling pressures.
With over a decade of experience across accounting, financial reporting, and business advisory, we understand that STR finance is not the same as traditional property management or standard small-business bookkeeping. Our work is grounded in real operational realities — high transaction volumes, multiple platforms, timing mismatches, and the growing compliance expectations around trust money.
What sets us apart is simple — we care about how your business actually runs. We take the time to understand your operating model, systems, and growth plans, and work alongside your team to put clear, practical financial structures in place. Our focus is not just on getting the numbers right, but on reducing risk, manual effort, and owner involvement over time.
Whether you need trust accounting support, owner reconciliations, finance process reviews, or ongoing financial oversight, our mission is the same: to give you confidence in your numbers, so you can focus on running and growing your STR business without carrying the financial burden yourself.
At IAAS, we don’t just support your finances — we support your ability to scale sustainably.
Our Services
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We specialise in trust accounting for short-term rental (STR) and mixed STR + LTR property management businesses, built around the complexity of OTA payouts and owner transactions.
Our approach delivers accurate owner balances, strong trust controls, and scalable processes so your finance function can keep up as you grow.
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We handle your bookkeeping so you can focus on running your business. From bank reconciliations to BAS preparation, we ensure your accounts are accurate and up to date every month — giving you clarity and confidence in your numbers.
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We transform your financial data into meaningful insights — profit and loss, cash flow trends, and KPI dashboards. You’ll always know how your business is performing, and where to focus for better results.
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Gain control and clarity over your financial future with tailored budgets and forecasts designed to guide smarter decisions, improve performance, and support sustainable growth.
We turn your numbers into a forward-looking plan — so you always know where your business stands and what’s next.
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As your trusted advisor, we go beyond compliance to help you plan strategically — setting goals, improving profitability, and identifying growth opportunities. You’ll get proactive advice from a Chartered Accountant who has extensive experience and genuinely cares about your success.
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We set up and automate trust accounting systems for STR management businesses, ensuring trust money, owner balances, and payouts are structured clearly and handled correctly from day one. By integrating trust accounting platforms with tools like Xero and reporting systems, we reduce manual processing, strengthen controls, and build trust workflows that can scale as your portfolio grows.
Choose your package
Or Contact Us for a Customised Package
Starter
Perfect for small STR operators and early-stage managers who need reliable trust accounting, bookkeeping, and clear monthly visibility without over-engineering the finance function.
from $1,380/m plus GST
✓ Monthly Trust Accounting
✓ Monthly Bookkeeping
✓ Monthly Profit & Loss Reporting
✓ Quarterly BAS Preparation
✓ Unlimited Email Support
Growth
Designed for growing STR management businesses that need stronger financial control, better cashflow visibility, and proactive support as property numbers and transaction volumes increase.
from $2,880/m plus GST
✓ Monthly Trust Accounting
✓ Monthly Bookkeeping
✓ Monthly Profit & Loss Reporting
✓ Monthly Balance Sheet Reporting
✓ Monthly Cashflow Reporting
✓ Monthly Aged AP/AR Reporting
✓ Payroll Management
✓ Quarterly Performance Review Meeting with a Senior CA
✓ Quarterly BAS Preparation
✓ Unlimited Email Support
Premium
Built for established STR operators who want their finance function to actively support growth, reduce owner involvement, and provide CFO-level insight as the business scales.
from $3,880/m plus GST
✓ Monthly Trust Accounting
✓ Monthly Bookkeeping
✓ Monthly Profit & Loss Reporting
✓ Monthly Balance Sheet Reporting
✓ Monthly Cashflow Reporting
✓ Monthly Aged AP/AR Reporting
✓ Payroll Management
✓ Monthly Review & Advisory Meeting with CFO-level insights
✓ Monthly BAS Preparation
✓ System Automation
✓ Unlimited Email Support
Contact Us
Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!