Question to the HM Treasury:

To ask Her Majesty’s Government how many persons were paying National Insurance contributions in the most recent period for which data are available, and how many of those were citizens of the EU10 countries at the time they first registered for a National Insurance number.

In 2012-13 it is estimated that 26.8m individuals are liable to National Insurance Contributions from earned income or self-employed profits across the different classes of National Insurance.

This is estimated using the latest available outturn from the Survey of Personal Income (SPI) for 2012-13. The SPI does not contain information on the nationality of individuals in the sample.

Calculating the number of individuals in 2012-13 who were paying National Insurance Contributions who were citizens of the EU when they first registered for a National Insurance number is complex and cannot be done quickly.However, HM Revenue and Customs are planning to produce more data early in 2016 on this issue.