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Regular Expression Details

Title Test Find UK National Insurance Number
Expression
(?!BG|GB|KN|NK|NT|TN|ZZ)[A-CEGHJ-PR-TW-Z][A-CEGHJ-NPR-TW-Z][0-9]{6}[A-D]
Description
UK NI number. ensured that the suffix is always a single character of A-D (as these are the only values currently supported by HMRC). Created 2021
Matches
XY123456D
Non-Matches
XY123456E
Author Rating: The rating for this expression. Mark Hobart
Source https://www.gov.uk/hmrc-internal-manuals/national-insurance-manual/nim39110
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