Marina Berth and Boat Mooring Business Tax Guide 2026/27
Letting out a marina berth, mooring or renting out a boat brings its own property vs trading income questions. How 2026/27 Self Assessment treats mooring and boat-letting income.
Quick answer
Whether letting out a marina berth or a boat itself counts as simple property income or full trading income depends heavily on how much service is bundled in — a bare sub-let of a berth or a boat with no crew and no extras looks like property/equipment letting, while a skippered charter with meals and instruction looks like a genuine trading business.
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Rental yield calculatorSub-letting a berth or mooring: usually property income
An owner who holds a marina berth or river mooring and simply sub-lets it to another boat owner when not using it themselves is typically generating property/rental income, taxed under the same rules as letting out a garage or storage space, with its own separate £1,000 property allowance available if the income is modest and occasional.
Chartering a boat: often trading income instead
Providing a boat for charter — particularly with a skipper, catering, instruction, or a genuinely managed booking and turnaround service — moves the activity much closer to trading income, since real services beyond simply providing space are being delivered. This distinction matters because trading and property income follow different expense rules, and because genuine trading activity opens up different capital allowance treatment for the vessel itself.
Rental Yield Calculator
Calculate gross and net rental yield for buy-to-let properties.
Rental yield calculatorRunning costs and allowable expenses
Whichever category applies, ongoing costs — mooring or marina fees paid by the owner, maintenance, insurance, safety equipment, and fuel where relevant — are generally allowable against the income the activity generates, though the specific expense rules differ slightly between trading and property income treatment (for instance, in how losses can be used).
Bareboat vs crewed charter, and capital allowances
A bareboat charter (letting out the vessel alone, with no crew provided) sits closer to equipment hire than a fully-crewed, serviced charter experience, which affects both VAT treatment and how the activity is categorised for tax. Capital allowances on the boat itself may be available where it's used for a genuine charter/hire trading business, but a boat used mainly for the owner's own enjoyment that's only occasionally let out sits in a more marginal position, and is worth discussing with an accountant given how much the specific facts (usage split, level of service, booking frequency) affect the answer.
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Frequently asked questions
Is income from sub-letting a marina berth taxed as property income?
Generally yes, if it is simply the berth or mooring being sub-let without significant additional services — this is typically treated as property/rental income, with its own £1,000 property allowance available for modest, occasional income.
Is chartering out a boat with a skipper treated differently to simple mooring rental?
Yes, providing a skipper, catering or instruction alongside the boat moves the activity closer to trading income rather than passive property income, since genuine services are being delivered beyond simply providing space or equipment.
Can boat maintenance and mooring fees be claimed as expenses?
Yes, ongoing costs like maintenance, insurance, safety equipment and mooring fees paid by the owner are generally allowable against the income the letting or charter activity generates, whether taxed as trading or property income.
What is the difference between a bareboat and crewed charter for tax purposes?
A bareboat charter (vessel only, no crew) sits closer to equipment hire, while a crewed, serviced charter is more clearly a trading business — this affects both VAT treatment and how the activity is categorised, with knock-on effects for expense and capital allowance treatment.
Can capital allowances be claimed on a boat used for charter?
Potentially yes, where the boat is used for a genuine charter/hire trading business, though a boat used mainly for personal enjoyment and only occasionally let out sits in a more marginal position, worth discussing individually with an accountant.
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