that's probably going to be enough (showing a tax return) a long with a letter from yourself. After applying they let you know what further docs they need and the there will be a few options of each thing they are looking for. If you are legit I don't think it's very tricky tbh.
hi, i'm the 100% owner of a LTD company and have accountant do my accounts of which I didn't need to show as had a P60 . I'm not sure what they will ask you for, however the most important thing for them to see you are employed and can work remotely along with the 11k savings it seems. Can you prove employment through your latest p60?
letter from company explaining nature of work and the fact I gives me the freedom to work remotely, evidence of employment so I gave my p60 from last year and gave annual return to show ownership.
Applied on a Wedneday evening and was asked for further documents on the Thursday morning, sent the documents Thursday afternoon and received the visa Monday afternoon. I should add - Ltd company owner working remotely.