365-day period ends
27 Jul 2027
Days elapsed
31 / 365
UK days used
20 / 183
You're within the usual 183-day UK allowance, with 163 UK days still available in this 365-day period.
This is a simplified estimate of the standard Seafarers' Earnings Deduction rule (365-day eligible period, up to 183 days in the UK) — it is not tax advice. Eligibility also depends on your ship, voyages, and residency status. Confirm your claim with HMRC's official Seafarers' Earnings Deduction guidance (search “HS205” on gov.uk) or a qualified accountant.
Upload certificates, set expiry reminders, and never miss a renewal — completely free on CrewVal.
Create free accountFree to join. No credit card required.