Clients typically engage Rhiannan when they are navigating something important, complex or time-sensitive — such as restructuring a group, expanding operations, or preparing for a transaction.
Rhiannan is a Principal in Business Advisory at William Buck in Sydney, specialising in retail and wholesale businesses and privately owned groups. She acts for founders, owners and management teams of mid-market businesses, providing clear, commercially focused advice on tax, structuring and strategic decisions.
She has deep experience across the retail and wholesale sector, including multi-site retail, ecommerce and consumer brands, import/export businesses, distributors, and franchise groups. Her work often involves supporting clients through growth and change — whether expanding into new markets, evolving supply chains, or restructuring group operations to support scale.
Rhiannan works closely with clients on transactions, including acquisitions, business sales and internal restructures. This includes advising on deal structuring, tax implications and pre-transaction readiness, and working alongside legal and M&A specialists to support a smooth and commercially effective outcome.
She also advises private groups and family enterprises on trust structures, succession planning and ongoing tax and compliance matters. Her approach is direct and practical, focusing on translating complex tax rules into clear next steps and solutions that work in the real world.
Having started her career in law before moving into accounting, Rhiannan brings a strong technical grounding combined with a pragmatic approach to problem solving. She is known for helping clients cut through complexity, manage risk and make confident decisions.
