The Canal & River Trust doesn't publish a single flat fine for cruising without a valid licence. The exact outcome depends on the case, how long the boat's gone unlicensed, and whether it's a first instance or a repeated one. What's consistent is that CRT actively enforces licensing: unlicensed boats can be pursued for the unpaid fee plus additional charges, and in persistent cases CRT can take court action or ultimately remove the boat from the water. The safest position is not to test it: see whether you need a licence for a narrowboat for what's required, and check the Canal & River Trust website directly for current enforcement guidance and fee rates rather than a secondhand figure. Once the licence is sorted, the better job is the name itself: see our canal boat gifts.
Enforcement lands on people already living aboard. For a boat with no home mooring the licence condition is movement, and how far a narrowboat travels in a day is the practical side of that. The Trust sets out its own remedy: "We are able to 'Section 8' unlicensed boats. This relates to power given in the British Waterways Act 1983", and "If a boat is also someone's home, before exercising these powers, we take the added precaution of getting a court order to remove the boat from the waterway" (Canal & River Trust, how we tackle evasion).
