Kathryn supports an annual fundraising event in Christchurch for Ronald McDonald House Charities (RMHC), along with the Red Shoe Ball in Auckland which raised $310,000 in 2019. Kathryn also hosts an annual highly anticipated fundraiser event called Sole to Soul at Soul Bar & Bistro. In addition, she has partnered with Nope Sisters Clothing to design KW Sweaters to assist RMHC raise funds for the Starship Children's Hospital.