A post-election budget might normally be considered the time to raise taxes, with giveaways kept back until closer to the public next going to the polls. But the Chancellor faces the challenges of an impending Brexit and a minority Government. While our recent polling suggests that people would be prepared to pay more tax for key public services, the Chancellor will be mindful of the failure and fallout from the recent attempt to increase reform around National Insurance contributions for the self-employed at the last budget.