Making Tax Digital for Income Tax (or MTD IT to its mates) changes the way you record and report income from self-employment and property. Rather than scribbling your sales figures on an old receipt and submitting a Self Assessment tax return once a year, MTD IT makes it compulsory to keep financial records digitally and use special software to submit this information to HMRC throughout the year.
This article explains who is affected and when (and what to do!).