Kerry Bertros, chairman of Heritage, said Mr Minz had been “an absolutely outstanding CEO” for the bank.
“He has led Heritage through a period of sustained growth and modernisation, with a sharp eye on the best interests of customers and staff, while also broadening the range of products and services available to customers,” he said.
“He has done this with the greatest integrity and professionalism, and instilled a culture of engagement and service excellence among our staff.”
Mr Minz steps down from the role after 23 years at Heritage, including the last 12 as CEO.
He said he leaves Heritage vastly enriched as a person, and a better man for the opportunities and life experiences that the role provided.
“I’m incredibly proud that I’ve been part of this wonderful organisation. I cannot consider a better way to bring a career to a close – doing what I love with other people who make a real difference in the lives of our customers,” he said.
“Heritage is the perfect example of what’s so great about the customer-owned banking model. Every day our staff focus purely and simply on helping our customers fulfil their financial dreams.
“I look back with enormous satisfaction at the culture we have created and the way this organisation has evolved.”