Papers are filled with talk of the Theresa May's NHS Brexit dividend this morning. Thankfully, it appears that no one buys the story.  Not one serious media outlet believes there is a Brexit dividend. The UK will still be paying the EU after Brexit. And because Brexit will shrink the economy there will be less tax paid. So, Theresa May is lying.
http://www.taxresearch.org.uk/Blog/2018/06/18/there-are-three-ways-to-deliver-funding-of-20-billion-for-the-nhs-and-tax-is-the-worst-of-them/