About Worldwide Accountancy 

At Worldwide Accountancy, we enable & advance financial liberty & literacy. We do that by taking a holistic perspective on clients’ situations and simplifying complexities.

We are an Australian Accounting and Tax firm with a global perspective. We appreciate that the world is larger than Australia so we have an understanding of the intricacies & intertwining with other tax jurisdictions.

We specialise in financial obligations, analysis and objectives. We build strong personal trusting relationships, offering exceptional service and peace of mind.

What We Do

Simplify Australian income tax and provide knowledge and insights to uncover opportunities for our clients.

Work with our clients to manage the pain from the ATO (Australian Tax Office).

We offer a full suite of accounting and tax services. We service all types of individuals and small to medium enterprises (companies, trusts, partnerships and so on).

Provide you with professional and up-to-date advice to avoid unexpected tax bills.

Build long term relationships, so we can work closely in assisting our clients to fulfil their financial goals.

Our Story

Worldwide Accountancy started when our director, Mark, was living in Canada. He noticed many expats struggled with understanding their Australian tax obligations.

Acknowledging the complexities behind Australian Tax residency and the need for stronger financial literacy, the Worldwide Accountancy blueprint was formed.

Our Director

Mark Mansour

Mark Mansour

Managing Director

Mark is focused on making tax and accounting as simple and painless as possible.

He is a designated member of Chartered Accountants Australia and New Zealand (CAANZ) and the Tax Practitioners Board Australia (TPB). Mark has experience in accounting, tax, banking, financial analysis, investments, insurance and business development, working with global organisations including ANZ, Westpac, Arthur J Gallagher and PKF in addition to start-ups and boutique accounting firms. This holistic range of financial services allows him to better understand client’s unique personal circumstances and provide exceptional service.

Social Mission

Education is important to us at Worldwide Accountancy. This is why we donate a small portion from every customer serviced to United Way Australia Charity to support their Dolly Parton’s Imagination Library.

We all benefit when children start school with the skills they need to learn and thrive. Sadly 22% of Australian children start school ‘developmentally vulnerable’. Research shows that if these children start school behind, they’re likely to continue a poor developmental trajectory at school and in later life. 

The Imagination Library is a community-based program providing children with free home delivered books and literacy resources each month, from birth until they turn 5. Read more about it here.


Years of Experience

We have over 11 years’ of experience in accounting, tax and financial services.

Tax Returns Completed

We have completed over 550 Australian tax returns for both individuals and small to medium enterprises.

Months of books provided to disadvantaged children

Through our partnership with United Way Australia and through the Imagination Library, we have donated 48 months of differing books to disadvantaged children around Australia.