I was a Tax Officer some thirty years ago, but most of what I know - if not all of it - is out of date. You would need someone who deals with Schedule D - usually the tax schedule for self employed people -to advise you. The rules regarding expenses can differ for those which are allowed under Schedule E. I think that the rules about travelling expenses,in particular, are more liberal for musicians and the like. All the things you mentioned sound reasonable enough to me. I would certainly claim for them in Germany, where I have been a working musician for years. I think Liz the Squeak can give you better information about the UK than I can though.