Sorry to bother everyone again but I tried to get in touch with the tax office for a letter of my previous employment etc and basically they have made a mess of my file and can only sort it when I get my P60 in the middle of the month. My assessment date is 11 April so I wondered if I definitely need exact dates of employment before my assessment date or if I can provide these if I am successful? Just really worried I will have to cancel my assessment!