Four million state pensioners living alone could risk facing the prospect of a £394 average council tax bill hike under “painful” changes which could be put in place in Labour’s next Budget.

There are fears Labour is plotting to smash and grab from single state pensioners by axeing the 25 percent single person council tax discount after Chancellor Rachel Reeves refused to rule out the draconian measures.

Miss Reeves has already warned the UK that her first-ever Budget, to be delivered in…