We’re Rothsay, Your Leading Independent Chartered Accountant Company

At Rothsay, we are driven by a desire to support company owners and executives in realising their goals.

CharterNet Rothsay is now InCorp Advisory

Supporting Our Clients At Every Stage.

Rothsay Chartered Accountants has been dedicated to delivering great service to our customers from our Perth and Sydney offices since our inception in 1991. Our culture is based on long-term relationships with our customers and we take great satisfaction in helping them achieve their objectives. Rothsay will be your trusted advisor and can offer you the advice and tools you need to move forward in terms of both your business and personal wealth.

A full-service accounting firm.

We’ll ensure your financial records are entirely up-to-date.
We make sure you follow set finance rules.
We prepare and consolidate ledgers and financial statements.
We help you find financial irregularities and inaccuracies.
We work with businesses to achieve greater success.
We provide expert superannuation services for your business.
We can help with all your taxation needs.
Ready to sell? We provide professional business valuations.
Contact us to learn more about what we can do for you.


Financial peace of mind.

Accounting involves more than simply preparing annual and regular financial statements. Our focus is always providing effective and value-added services that will ensure your business achieves the goals that you have set. Your accountant has the potential to be the most trusted member of your company’s management team. That’s why you need an account you can count on; that’s why you need Rothsay Chartered Accountants. Here are some of the reasons you can trust and rely on us.

Let’s work together to create your future goals.

We are chartered accountants with over 30 years of expertise in providing complete accounting and tax services to companies and individuals in Sydney and Perth, as well as the surrounding areas.

We believe in offering a straightforward, courteous, and transparent service to our clients, using the most up-to-date technology while maintaining the personal touch that comes with working with a well-established, expert accountant.

Rothsay was founded with a single objective in mind: to deliver customer-centric services that bring value to our customers’ companies. We combine everything you know and love about accounting (and what you don’t) with the most up-to-date software and must-have applications to provide you with the ideal bundle as you continue your successful path, wherever it may take you. We’ll be there for you every step of the way.

What our clients say.


I’ve been with this top accounting firm in Sydney for over 20 years and their tax advice, professionalism, quality of work and accounting services are always outstanding. As owners of various businesses, Rothsay have always been part of our team of trusted advisors and consultants.

Greg Dwyer

I have appreciated the professional support and high quality advice I have received from Alex Petrakis and the team at Rothsay Chartered Accountants for more than a decade. Genuinely great, helpful folks who always go the extra mile. Can’t recommend them more highly.

Ken Mortlock

Have used Rothsay Chartered Accountants for a number of years. Always competent, very professional and a pleasure to work with. They have assisted in a number of areas especially in dealing with tax issues and the ATO – and I highly recommend their services.
“Our Company and family have been clients of Rothsay Chartered Accountants for over 25 years. We have always appreciated the professional and personal service provided by Frank Vrachas and his team. Their broad and up to date expertise as well as the accounting, financial and business advice we receive has been invaluable. We can confidently recommend Rothsay.”

Rick de Leeuw

Managing - Director - Astral Scientific


Rothsay Newsletter.

We are committed to ensuring that Rothsay’s clients are abreast of legislative changes, changing financial and business trends and developments that can potentially impact their business success and growth. We will discuss such developments with you as an integral part of our work together and support as well as including such information in this news section as another helpful and easy-to-access resource.

Sydney Office

Perth Office

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