Maybe I'm missing something somewhere but how much money do the government really think they are going to save?? The amount of extra work this has created is unbelievable.
Surely much money money would be generated by changing rules and ensuring that companies pay the tax that they should
NO
It's that kind of thinking that got us into the Child Benefit mess in the first place.
Consider this:
The "old" system of child benefit was simple to undersand and cheap to administer. It was a little bit unfair, because some people earning really rather a lot of money received it, and so everyone had to pay a tiny bit more tax.
Up jumps a politician, presumably trying to curry favour with those that stand to his political left, and shouts "this is unfair, I will stop it".
So we end up with a system that is complicated to understand, costs a large amount to administer (forget the additional costs in HMRC - the compliance burden on us, the taxpayers, has not even been taken into account), introduces a number of unexpected side effects (the tax reclaims from those filling in tax returns for the first time and finding they have £thousands in unclaimed pension contribution refunds) and instead of being a little bit unfair on a large number of people is very unfair on a smaller number (e.g. those with earnings between £50k and £60k who have extortionate marginal tax rates; those with two earners on £50k who escape the charge altogether).
Thankfully it seems that after this, the "pasty tax" and other bad decisions made against the advice of people who know what they are talking about and don't have a political axe to grind, the leaders of the current administration are being a little more circumspect regarding the political temptation to join in the Corporation Tax lynch mob, joining in the chorus of "hang 'em high" rather than carrying the rope.
This is just as well - so far we have only cocked things up for a few people with kids they can afford to feed a higher-than-ambient-temperature pastry-based savoury snack from time to time. Do the same damage to Corporation Tax and you risk cocking things up for the companies that sell the products and employ the people that generate the VAT, Excise Duty, Income Tax, and National Insurance that make up nearly 70% of the UK's total tax income.