New Zealand

“Working on your business not in your business will set you up for success.”

Diana Li

Director, Business Advisory

Delivering practical, commercially focused outcomes has helped Diana build strong, long-term relationships with her clients. Seeing her clients succeed and their businesses grow is what drives Diana to provide high quality advice and solutions.

Her expertise in business and tax advisory allows her to see the bigger picture and provide the right solutions to a range of clients, including SMEs, commercial entities, trusts and high-net-worth individuals. “I enjoy meeting new clients and tackling different issues.”

Diana’s expertise also extends to advising on business structures and solvent liquidations and providing litigation support services.

A qualified chartered accountant, Diana works across several different industries, including property development, construction, retail, hospitality and other service industries.

Born in Beijing, Diana is fluent in both English and Mandarin. She moved to New Zealand in 2000 and joined William Buck in 2017 with a promotion in January 2023 to a Director role.

With a love for the water, she is a keen scuba diver and is passionate about protecting our oceans and marine life.

The Facts:

Core Expertise

  • Accounting and tax planning and advice
  • Litigation support services


  • Member of Chartered Accountants Australia and New Zealand
  • Master’s degree in Accounting (Honours)
  • Bachelor’s degree in Accounting and Management


  • Property development and construction
  • Retail and hospitality
  • High-net-worth individuals
  • Small to medium businesses
  • Trusts