Meet the Team
At Headland we have a skilled group of professionals each bringing unique expertise and strengths to assist our clients achieve their objectives.
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Anthony Castellan- CA & Tax Agent
Anthony has dedicated over 30 years to the accounting industry, developing deep expertise in tax strategies, business advisory and planning. With a passion for helping clients achieve their financial goals, Anthony offers practical, innovative solutions tailored to each individual's needs.
Anthony is focused on guiding clients through complex tax laws, maximizing entitlements, and supporting their financial growth and protection.
What Anthony Brings to the Team:
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Over three decades of experience in accounting and taxation
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Proven success in helping clients optimize their financial outcomes
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Deep understanding of small and medium-sized business needs
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Friendly, approachable, and dedicated to client success
When working with Anthony, you gain a professional who is committed to your financial wellbeing and long-term success
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Natalie Castellan - CA
​Natalie brings extensive experience and a genuine passion for supporting clients throughout the year. She focuses on proactive advice, helping clients manage their tax positions, estimate expected liabilities, and plan effectively—so there are no unpleasant surprises at year’s end.
Additionally, Natalie is adept at assisting clients when challenges arise with their accounting software, quickly troubleshooting issues and getting them back on track. Her hands-on approach ensures your systems run smoothly, allowing you to focus on growing your business.
What Natalie Brings to the Team:
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Over 25 years of experience in accounting and financial management
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Ongoing support and proactive tax planning to optimize your financial position
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Expertise in BAS, tax compliance, and business structuring
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Skilled at troubleshooting accounting software issues and restoring workflows
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Approachable, caring, and dedicated to your long-term success
Partnering with Natalie means having a trusted professional by your side—supportive, proactive, and ready to help you stay on track.

Accountants & Bookkeepers
While our clients are our top priority, our dedicated team of experienced professionals is the backbone of everything we do. Many of our staff have been with Headland Business Services for years, and they are valued members of our firm whom we care for deeply.
It is through the combined effort, expertise, and commitment of our staff that we are able to deliver personalized, reliable, and high-quality service to every client. Our team’s diverse skills — from accounting and taxation and technology support — allows us to provide comprehensive solutions tailored to your needs.
We believe in fostering a supportive and collaborative environment, and this strong team approach is what empowers us to help you succeed. Together, we work towards ensuring your financial wellbeing, growth, and peace of mind.