Find or check an employee's National Insurance number using Basic PAYE Tools
As an employer, use Basic PAYE Tools to find or check an employee's National Insurance number if you cannot do this with your commercial payroll software.
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This guide will help you use Basic PAYE Tools to find or check an employee’s National Insurance number.
All Basic PAYE Tools user guides are updated only when there are major changes to the tools. They may not be updated yearly.
As an employer you must register with HMRC for PAYE Online before you use Basic PAYE Tools to run your payroll calculations and submissions.
Updates to this page
Published 12 June 2014Last updated 17 December 2024 + show all updates
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Contact details to apply for a new National Insurance number have been updated. Instructions to activate a new tax year have been removed as they are covered in the Basic PAYE Tools user guide.
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The guidance for Basic PAYE Tools on how to check a National Insurance number has been updated for the tax year 2021 to 2022.
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The guidance for Basic PAYE Tools on how to check a National Insurance number has been updated for the tax year 2020 to 2021.
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The guidance for Basic PAYE Tools on how to check a National Insurance number has been updated for the tax year 2019 to 2020.
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The guidance for Basic PAYE Tools on how to check a National Insurance number has been updated for the tax year 2018 to 2019.
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Updated guidance available.
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This guide includes changes to reflect 2015 Basic PAYE Tools screen shots, new url's and telephone number and removal of out of data items.
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First published.