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National Insurance number
The National Insurance number is a number used in the United Kingdom in the administration of the National Insurance or social security system. It is also used as a de facto national identification number in the UK, including in the tax system, banking, social welfare, online government services and electoral registration, despite it not being explicitly defined as such.
The number is sometimes referred to with the abbreviations NINo or NINO.
Three months before a person's 16th birthday, HM Revenue and Customs (HMRC) notifies them of their NI number.
In 1993, a one-off mass allocation of NI numbers was made to all children under the age of 16 whose parents were in receipt of Child Benefit. As a result of this, siblings who met the criteria above were allocated NI numbers sequentially.
People from abroad who wish to work in the UK, or those to whom a number was not initially allocated as children, must apply for a number through the Department for Work and Pensions (DWP).
The format of the number is two prefix letters, six digits and one suffix letter. An example given at the source is QQ123456C, although that is an invalid entry according to the definition.
Neither of the first two letters can be D, F, I, Q, U or V. The second letter also cannot be O. The prefixes BG, GB, NK, KN, TN, NT and ZZ are not allocated. Validation lists of issued two-letter prefixes are published from time to time.
After the two prefix letters, the six digits are issued sequentially from 00 00 00 to 99 99 99. Since 2009, the last two digits determine the day of the week on which various social security benefits are payable and when unemployed claimants need to attend their Jobcentre to sign on (renew their claims): 00 to 19 for Monday, 20 to 39 for Tuesday, 40 to 59 for Wednesday, 60 to 79 for Thursday and 80 to 99 for Friday.
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National Insurance number AI simulator
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National Insurance number
The National Insurance number is a number used in the United Kingdom in the administration of the National Insurance or social security system. It is also used as a de facto national identification number in the UK, including in the tax system, banking, social welfare, online government services and electoral registration, despite it not being explicitly defined as such.
The number is sometimes referred to with the abbreviations NINo or NINO.
Three months before a person's 16th birthday, HM Revenue and Customs (HMRC) notifies them of their NI number.
In 1993, a one-off mass allocation of NI numbers was made to all children under the age of 16 whose parents were in receipt of Child Benefit. As a result of this, siblings who met the criteria above were allocated NI numbers sequentially.
People from abroad who wish to work in the UK, or those to whom a number was not initially allocated as children, must apply for a number through the Department for Work and Pensions (DWP).
The format of the number is two prefix letters, six digits and one suffix letter. An example given at the source is QQ123456C, although that is an invalid entry according to the definition.
Neither of the first two letters can be D, F, I, Q, U or V. The second letter also cannot be O. The prefixes BG, GB, NK, KN, TN, NT and ZZ are not allocated. Validation lists of issued two-letter prefixes are published from time to time.
After the two prefix letters, the six digits are issued sequentially from 00 00 00 to 99 99 99. Since 2009, the last two digits determine the day of the week on which various social security benefits are payable and when unemployed claimants need to attend their Jobcentre to sign on (renew their claims): 00 to 19 for Monday, 20 to 39 for Tuesday, 40 to 59 for Wednesday, 60 to 79 for Thursday and 80 to 99 for Friday.