All former UK prime ministers are entitled to an allowance of up to £115,000 a year to cover the costs of their ongoing public engagements. This can continue fo

All former UK prime ministers are entitled to an allowance of up to £115,000 a year to cover the costs of their ongoing public engagements. This can continue for decades. In the first 10 years after Tony Blair left office, he collected £1,077,888 which is quite close to the maximum. In addition, former prime ministers can still remain members of Parliament if they get re-elected for that role, as is the case with Theresa May.