Employers and confirming an employee tax code: enquiries
Call HMRC to check the tax code of one of your employees.
Phone
Call HMRC to check the tax code of one of your employees.
You鈥檒l need your employee鈥檚:
- name
- date of birth
- address
- National Insurance number
You can also find out information in your business tax account.
Before you call
This helpline may ask you some security questions. Make sure your business details and address are up to date in your business tax account or you could fail telephone security. If you do not have a business tax account, you can鈥痗reate one before you check your details.
Telephone: 0300 200 3300
Opening times: Monday to Friday, 8am to 6pm. Closed bank holidays.
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Updates to this page
Published 14 May 2025