Question to the HM Treasury:
To ask Mr Chancellor of the Exchequer, how many (a) women and (b) men paid Class 4 national insurance contributions; and what the average amount paid was in the latest period for which figures are available.
In 2014-15, 550,000 women and 1,855,000 men had profits that were liable for Class 4 National Insurance contributions (NICs).
In 2014-15, the average annual amount paid by women was £1,120, and the average amount paid by men was £1,300. The average annual amount paid overall was £1,260.
This data is based on the Survey of Personal Incomes in 2014-15, the latest period in which figures are available.