Just had a notice from the TAX man saying i have underpaid by approximately £2,000.00 for the last year and the same for year ending April 2010. All together I apparently owe them £4,311.20. How the hell can this be my fault if I am PAYE????? I have a main job and a part time job, all my income has been declared properly but they are saying (i think) it's to do with how much i have paid on the 40% bracket. Surely that's worked out by them??? Anyone else had similar problems? any ideas?