Question to the Department for Work and Pensions:
To ask Her Majesty's Government how many National Insurance numbers were (1) issued, and (2) deleted in each of the last three years for which records are available.
The requested information at point (1) is not available and can only be provided at disproportionate cost.
The requested information at point (2) National Insurance Numbers (NINO) are not deleted. Once they have been allocated they are registered on Her Majesty’s Revenue and Customs (HMRC) E-NIRS system where they remain indefinitely.