HMRC tax checks target cash in hand work HMRC is to introduce a number of new tax checks in a bid to scrutinise workers in sectors deemed to be high risk for evasion, with a focus on roles where cash-in-hand work is prevalent or cash is widely used. As of April 4, taxi drivers, minicab drivers and scrap metal merchants will have to confirm to HMRC that they pay their taxes in full in order to renew their licences from local licensing authorities. Those found to have underpaid or misled HMRC may lose their licences to operate and could also face criminal prosecution. HMRC projects that the new system will prevent £270m of tax evasion over the next five years.