Mainstay Advisers
Have Questions?? (02) 4955 9195

About Us

AV (Tony) Young took over the business 20 years ago and together with his long serving and qualified Accountants, Brendon Lucas and Sarah Sullivan and a team of dedicated support staff, the team has prepared and lodged over 45,000 tax returns.

Mainstay Advisers lodges 1000’s of returns each year making it not only one of the longest continuously running tax preparation firms but also one of Newcastle’s largest individually family owned business.

At Mainstay Advisers, we are Registered Tax Agents and Limited Australian Financial Services License holders.

Our History

​Over 60 years ago, Mr. A.G. Lewis was working as an accountant at steel manufacturer BHP and began offering individual tax preparation to his work mates in his spare time.

At that time, BHP was Newcastle’s largest employer with over 30,000 men and women on the books.  Being well known and regarded, word of his particular service spread and before long he was preparing individual returns tax by the score.  Demand was so great, he took the bold step of leaving what was in those days a safe job for life and hung his shingle in his home suburb of Wallsend offering individual income tax preparation services to the working men and women of Newcastle.

Some 30 years ago, Archie Lewis (son of Mr. A.G. Lewis) joined the firm and carried on the family business retiring in 2000.

Current Principal AV (Tony) Young took over the rein’s on Archie’s retirement and has continued to grow the business strongly ever since.

Our Team

Tony Young – Principal 

Tony Young holds a Bachelor of Commerce from the University of Newcastle, is a Chartered Accountant and holds a SMSF Specialisation from the University of NSW Business School. Tony’s expertise in accounting and taxation services has enabled him to provide a high quality of diverse services to his client base and establish long term relationships.

If not at the office, Tony will be spending his time with family, surfing or being involved in property development ​projects across Newcastle.

Brendon Lucas – Accountant 

Having worked with Tony at Mainstay Advisers for 16 years, Brendon has knowledge in all aspects of accounting and taxation gaining an interest in shares, Business tax strategies and Self-managed superannuation Funds. Brendon holds an Advanced Diploma in Accounting and is an experienced investor. 

When not at work Brendon enjoys time outdoors with his family and renovating his house.

Sarah Sullivan – Accountant

Sarah has worked at Mainstay for the last 2 years. Sarah completed her Bachelor of Commerce (Accounting) at Newcastle University, Advanced Diploma in  Accounting, and is currently working towards her CPA. Sarah works with a number of business and individual clients and focuses on taking the time required to understand their individual needs and objectivesSarah’s passion is helping people and being part of a solution.

Having lived in Wallsend for most of her life, Sarah is involved in her local Church community and spends time with her family and friends.