Seatax
Oil and gas support vessel tax and SED
Navigating support vessels in oil and gas can be ships. The installation they serve usually is not. Your contract title is a weak guide. The midnight position and the Schedule 27 use of the unit are stronger.
Pain
Same field, different units. One crew gets SED, the next does not.
Solution
We name the vessel type first, then run the day-count.
Support vessels
PSV, AHTS, ERRV and similar ships may support an SED claim if you are employed on that ship and meet eligible period, half-day and foreign-port tests.
The installation
Time living and working as installation crew is the high-risk category. See our FPSO and North Sea pages.
This page is general information based on published HMRC guidance, not personal tax advice. Seatax will apply the rules to your sea service after you enrol. Fees from £275 including VAT per return.
Questions people ask
I rotate between boat and platform.
Then we split the duties. SED is not all-or-nothing on a mixed tour without looking at each employment and vessel.
Enrol with Seatax
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Fees from £275 including VAT per tax return. Download the pack, or call us and we will deal with your enquiry within 24 hours.