A business owner and an accountant are working together on financial health and business growth strategies.

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.

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Our Services

Choose your package

Or Contact Us for a Customised Package

A sole trader who is starting a new business and needing help with bookkeeping and financial advice.

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

Family business owners are working together and achieving financial success.

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

A business owner of an established business is working with an accountant and celebrating the business success.

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!