Seafarer's Tax Calculator

Record and track your days outside the UK to qualify for Seafarer's Earnings Deductions (SED). The Seafarers’ Earnings Deduction (SED) is a UK tax relief allowing eligible seafarers to claim a one hundred percent deduction on foreign earnings, often resulting in zero income tax. To qualify, you must be a UK/EEA resident working on a ship, spending at least 365 days outside the UK, and visiting at least one foreign port.