According to the Guardian:
HM Revenue and Customs's resource budget will be cut by 5%, but extra resources will be provided to tackle tax evasion.
This is utterly bizarre logic. In a system - and we have a tax system - you simply cannot make such claims. It is not possible.
What you can say is the resources required to collect tax are being cut with the inevitable consequence that the tax yield will fall - probably by more than £11.5 billion.