
Graham Case
Managing Director
FCPA, B.Bus. (Acct’g), J.P. (Qual.), Reg’d Tax Agent
is a Fellow of CPA Australia with 30 years of experience. His work mainly comprises of tax specialist and business advisory work. Small business is his most passionate interest. Graham commenced his accounting career with KPMG a big four accounting firm. He soon went into practice on his own. He has enjoyed a long association with Concord Tax since 1989. Graham has a broad experience with all business structures. His taxation knowledge, industry exposure, and familiarity with small business will be invaluable to you when advice is needed. Graham's main strength is his capacity to think outside the box, find solutions, and solve problems.

Donna Zillmann
Practice Manager, Business Advisor
B.Bus. (Acct’g), CPA, Registered Tax Agent
Donna completed her Bachelor of Business in Accounting at CUQ with distinction. She commenced working for a large accounting practice in Mackay in 2004. In 2008 she relocated to Townsville and commenced working with Concord Tax - Kirwan. She received her CPA status in 2011 with a High Distinction in Taxation and further became a Registered Tax Agent in 2013. Her professional expertise is focused on business accounts and taxation. Furthermore, she offers a range of Business Advice to her clients. She is expert in Xero, Quickbooks, and MYOB.

Anish Manandar
Tax & Business Accountant
Anish completed his Bachelor of Business in Nepal. He moved to Australia and completed his Master of Professional Accounting and Master of Business Administration at James Cook university. He joined Concord Tax-Kirwan in 2020 after working for an accounting practice in Brisbane. He is an associate with CPA Australia. He specialises in tax compliance for both individuals and small businesses. His attention to detail and problem-solving skills has enabled him to provide tax effective solutions to his clients in areas including Self-Managed Super Funds. In his spare time, Anish enjoys exploring new places, trying new local restaurants, and staying active at the gym.

Jacque Zanussi
Professional Bookkeeper
Jacque joins the CTK team as our Qualified Bookkeeper. She holds a Bachelor of Commerce from JCU, is a Registered BAS Agent and a Member of Australian Bookkeepers Network. Jacque brings 20 years knowledge to our team and has worked with many industries including Construction, Medical, Hospitality, Childcare, Retail, Engineering, Insurance and Financial Planning. Her focus is to relieve the stress of bookkeeping and ultimately empower her clients with time, to focus on what they do best. She is experienced in Xero, MYOB and Reckon. After hours, Jacque loves spending time outdoors breathing in our fabulous NQ lifestyle, taking in the latest movie or theatre production, being creative at a local craft class, catching up with friends for coffee and a good natter, cooking and relaxing at home with the family.

Raelea Archer
Administration Officer
Raelea is our Receptionist and Administration Officer. She takes care of the front office, our clients, the team, and the administration for our practice. She brings with her a wealth of experience. Raelea holds a Certificate IV in Accounting and has several years of experience working in office administration. She looks forward to getting to know you and is always happy to assist in any way she can. Outside of work, Raelea enjoys spending time outdoors with her family fishing and exploring our wonderful North Queensland countryside.
