HI, Wonder if anyone can advise. I have been doing supply for ten years now - mainly agency and LEA long-term contracts. Am usually on emergency tax as I have been with various agencies over the years and never had the single person's threshold and paid a load of tax. I know you can only claim for the last 6 tax years, but how do I do it? Not sure I have the relevant payslips and P45s. Have some, but would the tax office have a record of whom I have worked for and when. Would they request payment records on my behalf. Was going to go through the NASUWT company where you get 60% back and they keep a 40% cut? Has anyone done that. But it would be nice to get the whole let owed to me back. Am about to finish a year's long term postion and have no job for September. So need the money badly. Any advice would be great. Also - how long does it take? Cheers, Ostpreussen.