The board paid dividends of $6.8 million to its shareholders - Greater Wellington Regional Council and Horizons Regional Council - and has declared a final dividend of $0.7 million.
Retiring CentrePort chairman Warren Larsen said the board looked forward to continued profitable growth of the business.
"The company will continue to invest in both updating port infrastructure assets where required, and further developing regional strategic partnerships to create seamless road and rail connections from central New Zealand to our seaport," said CentrePort chief executive Derek Nind.
He said CentrePort had developed its plans for a resource consent application to deepen the harbour's shipping channel.
The tide depth enhancement would facilitate the handling of larger capacity vessels and ensure ongoing direct access to international markets for central New Zealand importers and exporters.