“At a time when the finances for ordinary families are so tight, they need to think long and hard about whether what they are doing is fair,” she said. “Every other family is having to meet expenses out of their ordinary salary and MPs need to act responsibly when it comes to claiming these types of expenses.” Sir Ian Kennedy, the chief executive of Ipsa, will give a speech tomorrow in which he is expected to suggest that MPs are underpaid. Although he will not set out specific proposals, it is understood that the regulator will recommend MPs are awarded a £10,000 pay rise after the next election.