Making Sure What You Send Us Online Is Correct

14.3 National Insurance number tracing service

We have a National Insurance number tracing service.

You will need to fill in an Employee's National Insurance Number Trace form (CA6855) (PDF 55K) which you can get from:

• your Employer CD-ROM
• the Employer Orderline on 0845 7 646 646
• your HM Revenue & Customs office.

Or you can write to us with the details we need. Just tell us (in this order) your employee's title, surname, first name, address, date of birth, gender, works/payroll number, date employment started, date employment ended (if that applies), and your employer's PAYE reference. Then send your letter to:

National Insurance Contributions Office
ABW, NI number tracing
Room BP1102
Benton Park View
Newcastle Upon Tyne
NE98 1ZZ.