Please note that this is a WIP.Are you self-employed and/or a PAYE employee? Our calculator is able to estimate whether you are due a tax refund or not.Watch this space for additions to the tool. Currently it only supports the standard tax codes. i.e. 09/10 649L.keywords: tax refund, refund calculator, uk paye tax calculator, tax return, tax calculator, uk tax calc, paye tax calculator,