iCalculator UK PAYE Calculator is updated for the 2012 - 2013 tax year. You can calculate your take home pay based of your annual income and include tax deductable elements such as pensions and student loans.
iCalculator also provides historical UK PAYE figures so you can review how much tax you have paid in previous tax years.
See the guide below for specific information on each element that is taken into account when calculating your take home pay.