UK Tax Questions? Ask a UK Tax Advisor for answers ASAP
Hello, I am Keith, one of the experts on Just Answer, and pleased to be able to help you with your question.
If you spend more than 183 days in the UK in any one tax year then you are liable to UK taxation on your world wide income. Thus any profits made through the Swiss banking arrangements should be declared on your annual self assessment tax return. If no profits are made then there is, of course, nothing to report. On registration for self employment you will automatically sent a tax return form annually. You may, of course, be being sent one anyway.
I would suggest that you register for self employment as quickly as possible.
Please come back to me if you have any follow up questions.
I do hope that you have found my reply of assistance.