Meet the Principals

Experience a comfortable, stress-free approach to business and taxation advice by dealing directly with the principals.

In an ever-changing business environment, you need timely personalised service from an accounting practice that is not solely focused on income tax compliance.  We have the experience and expertise to partner you in your business, and guide you with real solutions.

We specialise in providing accounting and taxation advice in the medical & allied health, legal, and professional services sectors. We understand the pressures and demands of owning a business, and the different dynamics which affect the professions.

We seek to develop strong business relationships through regular contact and an understanding of your needs. We can monitor your progress, giving you piece of mind that your business is on track to success, leaving you to focus on your goals.

You will receive responsive attention, when it is most important to you.

Our focus is to provide premium services that deal with business accounting and taxation issues affecting your business in a clear and concise manner.

Your principals, Bernard Kasteel and Sandy Riba have more than twenty years combined experience in public practice. Together they have created a progressive Chartered accounting practice specialising in the medical & allied health, legal, and professional services sectors.

In addition to providing general taxation and compliance services, we offer an extensive range of accounting solutions and taxation advice tailored to your needs.

Bernard Kasteel

Chartered Accountant, B.Com

With over ten years experience in public practice, Bernard Kasteel has assisted and supported a broad range of clients with all aspects of their accounting and taxation requirements.

Throughout his career, Bernard has accumulated a wealth of knowledge and experience across a number of industries including medical & allied health, building & construction and professional services.  With exposure to a wide range of businesses local and interstate, Bernard approaches each situation with an open mind and broad understanding of the issues impacting businesses today.

Bernard has developed a reputation for providing assistance beyond expectations, and the ability to present simple answers to even the most difficult questions.  Determined to provide his clients with solutions tailored to their individual needs, Bernard will assist you in developing ideas to advance your business.

If you want a dedicated partner for your business, call Bernard to discuss how ribakasteel can assist you.


Sunshine Coast business accountant

Sandy Riba

Affiliate ICAA, B.Bus

Sandy Riba has over fifteen years experience in public practice assisting business clients across a range of taxation, accounting and business management matters.

Sandy has developed an expertise in the legal industry.  She has assisted legal firms with their bookkeeping and accounting requirements for the length of her career.  Thanks to the depth of her experience, Sandy has an edge when it comes to developing realistic solutions and business strategies to improve in-house efficiencies and processes.

With a solid reputation for building and maintaining strong professional client relationships, Sandy is a diligent practitioner who tailors her approach to suit the requirements of each and every business client in her portfolio.  Sandy prides herself on being accessible and available to discuss the specific issues and concerns of her clients.

Give Sandy a call to discuss the way forward to growing your business.