Here are my bang up to date expenses for my own liveaboard narrowboat James. Not all narrowboat owners will incur the costs that I do. Many of the costs below will apply though so if you’re considering buying your own narrowboat, you need to be aware of the costs. You may wonder why I have included costs for items and services that aren’t directly related to running a narrowboat. They’re included because they are typical lifestyle costs that you may well incur. You can discount them if you want, but just bear them in mind.