Hello and welcome to the site. Thank you for your question.My advice to you would be to register for self assessment tax return if you are likely to earn money from other ventures on recurring basis.Also you have income from pensions and some teaching supply. You want to make sure you have correct tax coding etc.If you are already registered for self assessment and have a UTR number (unique tax reference number) then just file a tax return.Otherwise, you can register for self assessment and get a UTR number here
I hope this is helpful and answers your question.
If you have any other questions, please ask me before you rate my service – I’ll be happy to respond.
Jim, thanks for your reply.Deadline for Tax returns for tax year ended 5 Apr 2015 -Paper returns no later than 31 Oct 2015Online filing no later than 31 Jan 2016...
Tax return for year ended 5 apr 2014 - deadlines have past.
I hope this is helpful.