Do I need to register my boat in New Zealand?

In New Zealand, recreational boats generally do not need to be registered for domestic use, although some regional councils and clubs may require them to display identification numbers, and trailer boats need trailer registration. However, if you want to fly a New Zealand flag or take the vessel internationally, registration under the Ship Registration Act 1992 can help, since a registered ship has a nationality and its ownership and any mortgages are recorded on the register. Registration can also help when obtaining finance and establishing title. It involves an application to Maritime New Zealand, evidence of ownership and, for some vessels, a measurement survey. Check the requirements of any foreign ports you plan to visit, as some require documentation of nationality and ownership.