Off-payroll working (IR35): enquiries
Contact HMRC for help with enquiries about the off-payroll working rules.
Phone
Call HMRC for:
- help with enquiries about the off-payroll working rules
- a full run-through of the Check Employment Status for Tax (CEST) tool
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 personal details and address are up to date in your personal tax account or you could fail telephone security. If you do not have a personal tax account, you can鈥痗reate one before you check your details.
Telephone: 0300 123 2326
Opening times: Monday to Friday, 8:30am to 4:30pm. Closed bank holidays.
Post
Write to HMRC for help with enquiries about the off-payroll working rules.
HM Revenue and Customs
IR35 Customer Service Unit
S0733
Newcastle Upon Tyne
NE98 1ZZ
United Kingdom
Related content
Understanding off-payroll working (IR35)
Check if you鈥檙e an employment intermediary