About
Decades as an accounting firm… but still young business owners at heart.
We started out as accounting partners in Perth in 1973 but you won’t catch any of us harping on about the past.
The modern business landscape is so dynamic that unless you keep moving with it, you quickly get left behind.
We take this message to our clients, helping them not only get smarter with their accounting, tax and finances but also with their systems and technology.
In fact, we embraced technology from the start…

Where it all began…
Henry Quarles de Quarles begins the accounting business in partnership in West Perth offices.
Alexander Quarles de Quarles starts working with Henry (his father) while studying part time at WAIT (now Curtin University).
Henry and Alexander start H Quarles & Co in Subiaco, buying their first computer system for $30,000 (paid off over six years!).
Henry retires and Alexander buys Henry’s share.
Growing through buy outs and mergers
We fully adopt Internet technology and our systems go online.
Buy out and merger with Perth accounting firm K. Mijatovic & Co, after which Guy Quinn joins the firm.
We relocate to premises on Beaufort Street, Inglewood.
Buy out and merger with Perth accounting firm Peter Thomas & Co.
Buy out and merger with Perth accounting firm Geoff Aitken & Company.
Laurie Flynne joins the company.
Growing with the technology…
We adopt Xero cloud accounting as software of choice for our own offices and for clients.
Cloud software Class is adopted as our SMSF Administration platform of choice.
Connected to the National Broadband Network and ready for the future!
A specialised, focused & personalised approach
Three strong principles light the way for our interactions with any client:
Specialisation
We work mainly with small building trades business, medical practices and medical professionals.
While we have clients from other industries, this is a specialist area after so many years of working with these professionals.
Reach out
Focus
Helping you reach your main goals and achieving financial wellbeing are the main drivers. This applies both in and out of your business.
We may start off with tax and accounting; but often find ourselves discussing deeper business issues, as well as other personal financial matters with business owners.
Reach out
Personalisation
There are no off-the-shelf packages: only one-on-one services tailored precisely to want you need.
This starts with developing a deeper understanding of your business and consideration of your unique business needs.
Despite the growth, we never want to lose the personal service that only an established local accounting firm can provide.
Meet the people who make that happen.