Well it is just a discussion paper for 2018-19 but my did my heart sink on skimming it!!
In the suggestions on different band structures they do say "We acknowledge that if proposals to change tax bands are brought forward it will be important to engage extensively with HMRC to minimise any change in the administrative burden on self-assessment taxpayers and on business. The efficiency of the tax system is, therefore, something which we will consider in the upcoming debate." but given the farago of the HMRC tax computation this year and numerous exclusion cases who cannot see an even bigger monster looming on the horizon?