By Louis Goss An HMRC unit set up to tackle Covid fraud is set to leave £3.3bn outstanding when it winds down in March 2023, campaigners have warned. The Taxpayer Protection Taskforce, which was set up by Chancellor Rishi Sunak in March 2021, will be phased out, despite having collected less than 25 per cent of the money lost through misallocation of Covid funds. The launch of the unit also diverted millions away from other parts of HMRC that could have been used to fund more lucrative recovery work, investigative think-tank Tax Watch said. HMRC’s Taxpayer Protection Taskforce was set up by th…