This week on The Tax Factor, Heather Self and Roger Holman ask whether Angela Rayner should stop auditioning for Chancellor after her tax policy ideas were leaked and heavily critiqued.

Meanwhile, HMRC is getting heat from all directions: the National Audit Office questions its handling of wealthy taxpayers, and the Public Accounts Committee says the tax system is spiralling into complexity, public trust is fading, and confidence in HMRC’s IT overhaul is shaky at best.

Scottish Power had a fine reduced to £1 but paid £28 million in compensation. The big question: can that be claimed as tax deductible? HMRC and Scottish Power don’t see eye to eye.

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