Hi
I will be receiving a large lump sump payment in arrears next pay for underpayment for 3 financial years -namely 17/18,16/17 and 15/16. I have recieved one back payment already for ye 18/19 . Payroll had advised me that witholding for this payment was calculated under part A schedule 5. Tax office info states that Bii method although more work involved gives a more accurate figure. However I cannot work out if this means less or more tax will be deducted using Bii , than using A method. I would rather have more than less tax deducted , so checking if I should ask payroll to calculate using Bii or stick with A. Hope my question is clear. Many thanks