Research and analysis

Individual electoral registration: National Insurance Number omnibus survey

Research to help understand customers' knowledge of their National Insurance Number to support Individual Electoral Registration.

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Individual Electoral Registration is a change to the electoral registration system being implemented by the Cabinet Office. Electors will be given individual responsibility to register to vote and will be required to provide personal identifiers, including National Insurance Number (NINo), to be matched against data held by the Department for Work and Pensions (DWP). HMRC have been working with both the Cabinet Office and DWP to introduce this change.

It is estimated that as part of this data collection, 7 to 9 million customers will have to be sent letters asking them for information. As a result, HMRC are keen to understand what proportion of people are able to find their NINo (i.e. either know it from memory or know where to find it) and how many are unable to and would potentially contact HMRC or DWP.