Seafarer's tax advice and tax return submission. SK Tax Service is a seafarer’s tax advice service providing Merchant Seamen and seafarers with dependable income tax advice which has saved our clients literally millions of pounds in income tax over the years. SK Tax Service has been submitting tax returns for seafarers for over 26 years. Steve King has been advising seafarers on their tax affairs for over 36 years. There aren't many people who are in a better position than Steve and his team to give you more informed advice. We aim to remove the stress and confusion caused when dealing with your income tax affairs and put to rest that nagging voice in the back of your mind "Am I getting everything back to which I am entitled?" Also we deal with overseas workers who are employed shore side abroad rather than on vessels. We can offer all the advice you need to make sure that you fulfill the criteria for a Non-Residency claim. We hope you will find the information on this site informative and please don't hesitate to contact us for further clarification on where you stand when it comes to claiming your income tax back.