Making Sure What You Send Us Online Is Correct

14.4 Payroll ‘cleansing’

You can also use our free payroll ‘cleansing’ service that compares information from your payroll against individual National Insurance records. It is a method of ensuring that incorrect National Insurance numbers on your payroll, and personal detail errors on our records, are identified and corrected before you send us your Employer Annual Return or in-year forms.

We will:

  • identify any National Insurance numbers that are wrong or missing
  • provide you with a list of correct National Insurance numbers
  • tell you about any National Insurance number problems we have not been able to put right
  • check and update your employees’ personal details on their National Insurance records.

The benefits of payroll ‘cleansing’ include:

  • more accurate National Insurance numbers means fewer enquiries from us
  • fewer rejections when you file online, saving you time and administration costs
  • your employees' National Insurance contributions are allocated to the right account without delay
  • your employees’ identity details are kept fully up to date on their National Insurance records (important when people claim Social Security benefits or Retirement Pension).

For an information leaflet (CA89) to find out more, write to:

Customer Account Services
National Insurance Contributions Office
Bishop's Lynn House
18 Tuesday Market Place
King's Lynn
Norfolk
PE30 1JW

For payroll cleansing enquiries only, call 01553 666870.
(Lines are open 8:30 - 17:00 Monday to Thursday and 8:30 – 16:30 Friday.)