The UK's tax authority, HM Revenue &amp; Customs (HMRC), has issued new guidance clarifying how fuel supplied to superyachts should be treated for duty purposes.Issued June 2026, the guidance does not introduce new legislation, but instead reinforces HMRC’s position that most superyachts, including many operating in the charter market, should be regarded as private pleasure craft, rather than commercial vessels when purchasing fuel in the UK.SuperYacht Times breaks down exactly what this new guidance means for superyacht fuel supply in the UK. <img src="https://photo-assets.superyachttimes.com/photo/375442/image/large-54e7aee42496cdefed23d149da2e9f5e.jpg" data-gid="gid://syiq/Photo/375442">What has HMRC said?The new guidance provides fuel suppliers with greater clarity on how to determine whether a vessel qualifies as a private pleasure craft (PPC), or a commercial vessel. According to HMRC, a vessel is considered a private pleasure craft when it is used for private or recreational purposes by its owner, charterer or any guests permitted to use it. This includes leisure cruising, holidays and private charters undertaken for recreational purposes.The guidance emphasises that a yacht's ownership structure, commercial registration status or crew arrangements do not automatically make it a commercial vessel for fuel-duty purposes.<img src="https://photo-assets.superyachttimes.com/photo/395931/image/large-1b97bd788627c1a902a84bcaf7f1e970.jpg" data-gid="gid://syiq/Photo/395931">Why are superyachts specifically mentioned?HMRC explains that although many superyachts and support vessels are commercially owned and available for charter, this alone does not mean they should be treated as commercial vessels when fuel is supplied.A superyacht should be considered a PPC if either the owner or charterer determines how the vessel is used and enjoys it for their own or guests’ leisure purposes. This applies even when a yacht is professionally crewed or operating under a charter arrangement.Therefore superyachts and support vessels should only be considered commercial in exceptional circumstances, such as when they are contracted by a government authority or industrial customer to supply non-recreational services. <img src="https://photo-assets.superyachttimes.com/photo/378222/image/large-9dabe457a6a0c831b4f7d237793820d3.jpg" data-gid="gid://syiq/Photo/378222">Why does this matter for superyachts?The distinction between a private pleasure craft and a commercial vessel is important because different fuel-duty treatments apply. There are two types of fuel in the UK relating to superyachts, which are white diesel and red diesel.&nbsp;White diesel is the standard diesel which is sold at the full rate of fuel duty. This means that VAT is applied at standard rates and no relief is available. White diesel is often used for road transport and any fuel use that does not qualify for a rebate.&nbsp;Red diesel is the same standard diesel, but it has been dyed red to indicate that it should be sold at a reduced rate of fuel duty. This is often referred to as “marked gas oil” and is intended for specific exempt or lower tax purposes such as, non-propulsion use on vessels like generators or heating, or for some agricultural, construction and industrial application on land.PPC’s are not eligible to receive red diesel duty-free under Marine Voyages Relief, or to use it for propulsion at the lower, rebated duty rate. Under the new HMRC guidance, superyachts and support vessels should be considered as PPC’s.&nbsp;However, HMRC has also stated that you can supply red diesel to a PPC in Great Britain, but the customer must declare the split between propulsion and non-propulsion use and the full rate of VAT applies to all red diesel supplies of 2,300 litres or more. The fuel supplier is also responsible for paying the additional amount due for propulsion. Red diesel for non-propulsion uses on a PPC, for example for heating or generating electricity, can be supplied without additional fuel duty if all the conditions are met.As a result of this, the use of red diesel is heavily regulated due to its lower price from standard white diesel, and if it is used for purposes other than the rules mentioned above, the HMRC treats this as fuel duty evasion.<img src="https://photo-assets.superyachttimes.com/photo/375650/image/large-276a87f67cc160786bebc3b9183df6c3.jpg" data-gid="gid://syiq/Photo/375650">What impact could this have on fuel costs?On 15 June, the red diesel rate was reduced from 10.18 pence per litre, to 6.48 pence per litre, until 31 December 2026. However, the white diesel duty rate is currently 52.95 pence per litre. This leads to a 46.47 pence per litre difference in duty to be paid to HMRC on fuel for PPC propulsion.While the exact financial impact will vary depending on a yacht's fuel consumption and operating profile, the amount could be significantly higher for larger vessels. For example, a superyacht taking on 50,000 litres of propulsion fuel could face an additional duty liability of approximately £23,235. For a vessel bunkering 100,000 litres, that figure rises to around £46,470 before VAT is applied.As a result, the classification of a vessel can have a significant impact on the total cost of fuel purchased in the UK, particularly for larger superyachts taking on substantial quantities of fuel.<img src="https://photo-assets.superyachttimes.com/photo/377386/image/large-be7ad0f93133f1194f69440d38ecd477.jpg" data-gid="gid://syiq/Photo/377386">What should owners and operators take away from the guidance?The guidance does not create new legislation, but it does provide a clearer indication of how HMRC expects fuel suppliers to assess superyachts and their support vessels.For owners, charterers, yacht managers and fuel suppliers, the document reinforces the importance of understanding how a vessel's use, rather than its ownership structure or registration status, may affect its fuel-duty treatment when operating in the UK.You must first confirm if the vessel is a PPC or is operating commercially, but pleasure vessels such as superyachts should be treated at PPC’s, unless clear evidence of commercial use is provided.&nbsp;A declaration between propulsion and non-propulsion use should be obtained and the additional duty for propulsion should be paid to HMRC. HMRC also stated that if claimed commercial use is unclear, always ask for a written statement and copies of documented evidence.&nbsp;“Whilst misinterpretation or application of the law by suppliers and the resulting access to lower fuel prices may seem tempting, the risk to the captain’s career, the vessel’s ownership structure and ultimately the UBO’s entire tax position, by unlawfully using non or reduced, duty or VAT paid fuel for a fully chargeable purpose, makes it a practice that should always be avoided," added Ben Mahy Technical Director, of port VAT clearance experts, <a data-gid="gid://syiq/Company/7132" href="#managed-by-system" rel="noopener noreferrer" target="_blank" title="Bachmann Group (Company)">Bachmann Group</a>."Yacht Management companies and Family Offices have an obligation to always operate superyachts within the laws of the jurisdictions that they visit. This new HMRC Guidance and the forthcoming updates to HMRC Notices it references, gives much needed clarification of the fuel duty that superyachts should be lawfully paying whenever bunkering fuel in the UK."If you have any questions regarding the new guidance, contact the HMRC Fuel Duty Policy Team at: <a href="mailto:oils.policymail@hmrc.gov.uk" target="_blank">oils.policymail@hmrc.gov.uk</a>&nbsp;

What the UK's new fuel duty guidance means for superyachts

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HMRC has clarified how fuel supplied to superyachts should be treated in the UK. We explain what the new fuel-duty guidance means.

Explained: What the UK's new fuel duty guidance means for superyachts

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Explained: What the UK's new fuel duty guidance means for superyachts