About Our Firm

Mark Calleja Accounting, founded by Mark Calleja – Chartered Accountant, Registered Tax Agent and Justice of the Peace – provides trusted tax and business advisory services to SMEs and private individuals across Australia.

Trust Worthy

Whether you meet with us face to face or choose to connect with us remotely, we listen, and are reliable and available to meet your needs.


When it comes to accounting, you can count on us, all our team has over 20+ years experience and we can help you navigate life’s changes.


We know numbers. We are committed to your success. We’ll keep your finances on track – we have a knack for that.

Who We Are

Mark Calleja Accounting

Mark Calleja Accounting (MCA), founded by Mark Calleja – Chartered Accountant, Registered Tax Agent and Justice of the Peace – provides trusted tax and business advisory services to SMEs and private individuals across Australia.

Bringing over 20 years’ experience of working in small and mid-tier accounting firms, Mark and his team specialise in developing effective taxation and accounting solutions for SMEs, including family owned and operated businesses.

MCA understands the challenges that SMEs and their owners face on a daily basis. We work closely with clients, developing long-term relationships and taking pride in delivering personal assistance customised to their individual requirements.

Forming a close, ongoing relationship with you, our client – enables MCA to assist in ways beyond the traditional accounting and tax services. Proactive advice and efficient personal service helps businesses and individuals overcome whatever financial obstacles present themselves. MCA’s business improvement strategies, strategic advice and continual performance monitoring throughout the year, ensure critical business decisions can be addressed quickly and to the best effect.

Years in the Business

Focus on growing your business, trust the accounting to us.

Happy Clients

Large enough to meet all your financial needs. Small enough to know your name when you call.

Expert Accountants

The knowledge and insights to uncover opportunities and the commitment to see them through.

Who We Are

Our Team of Experts

Our long standing team is committed to delivering ongoing, realiable and expert support to our clients.

Marpie Soballa

Marpie Soballa

Chartered Accountant

Marpie is a Chartered Accountant with over 25 years experience in taxation and accounting for small to medium sized organisations owned by families and subsidiaries of multi nationals as well as superannuation funds. Marpie has worked in small, mid tier and large accounting firms that has enabled a well rounded career to be forged in dealing with small and large clients.

Marpie works closely with clients, often providing bookkeeping services, on and off site. Prepares quarterly accounts for clients and subsequent BAS’s.
Marpie prides herself in providing personal service to her clients.


Advising private businesses and their owners on income tax and general compliance matters. Processing of transactions and reconciliations of general ledgers. Preparation of financial statements on a regular basis for management.
Jacqui Nisbet

Jacqui Nisbet

Chartered Accountant

Jacqui is a Chartered Accountant with over 20 years experience in business services and audit, including accounting and taxation services for individuals, companies, trusts and partnerships.

Jacqui has extensive experience in audit management, advisory services and processes, including external audit knowledge on listed clients, multinational clients, private clients and franchises, with knowledge across various industries, including specialisation in Retail and Distribution, Life-sciences and Technology, Media and Telecommunications.
Jacqui has strong communication and management skills, allowing tailored solutions for her clients.


Preparation and review of statutory accounts, reporting to directors and managers, preparation and review of budgets, audit and due diligence function, and providing tax and accounting solutions to clients.
Ze Sun

Ze Sun

Chartered Accountant

Ze is a Chartered Accountant with over 8 years’ experience in taxation and accounting for small to medium sized organisations, including companies, partnerships, trusts, superannuation funds and sole traders. Ze has worked with clients in professionals, manufacturers, trading entities and franchises across a broad range of industries and sectors. Ze has strong problem solving and customer service skills which allows her to find effective ways to help clients and solve new problems.


Advising on taxation and accounting matters to private businesses owners, including the assistance on compliance matters relating to the establishment of trusts, companies and superannuation funds.

Sharon Calleja

Sharon Calleja

Client Services Officer

Sharon is the Client Services Officer for Mark Calleja Accounting. Joining the firm in October 2020, Sharon brought to the firm many years of experience with both customers and clients in the retail industry. This varied from working for a large supermarket chain, to owning her own small business, to catering to wholesalers and buyers in the fruit and vegetable industry. Taking on the Client Service role in MCA, she brings a wealth of experience and genuine care for people, in assisting our clients with their queries and completing their basic accounting needs. Sharon has excellent communication and organisation skills and her warm and friendly welcome is our clients first port of call.


Strong communication and organisation skills, ensuring excellent client service.

Vision Statement

“We believe that every business owner has the right to be able to make choices on how they spend their time, be protected and feel safe that they comply with their statutory requirements.”

Our Mission

“To deliver programs so that SME business owners can operate a flexible and responsive business in a ever changing environment while maintaining a positive cash flow and profitability, ensuring that their statutory obligations are protected and safe whilst maintaining a work /life balance.”

“Mark crosses all the T’s and dots all the I’s. Mark’s assistance with dealing with financiers and investment advisers is just what I need and he is always available. All going well he will be my accountant for the remainder of my life and one that will look after my family after I have gone”.
Stephen Murray


“Mark has been looking after my personal and business taxation and finances for 3 years. His professionalism, dedication and service is outstanding.

My family and I have an extremely good relationship with Mark, who is always approachable and I always feel confident with his advice at all times.”

Paul Trisic

Augusta and Fairlight Cellars

Join Us

Our Values

Core offering the MCA way:

Absolutely reliable by being responsive to changing environment and clients needs. We do this be being preventive and proactive.

The way we deliver this is by being Empathetic and Attentive to the needs to our clients.

Core words:

Reliable – Available when you need us

Attentive – We listen

Responsive – We get back to you, We do what we say

Empathetic – We care

Contact Us


(02) 9923-2959

Suite 302, Level 3, 83 Mount Street, North Sydney




PO Box 589, North Sydney NSW 2059