If HMRC needs to contact you about anything confidential they’ll reply by phone or post.
- if you’re self-employed and have a National Insurance enquiry or need to report changes to your personal details
- to register for National Insurance, Income Tax and VAT if you’ve recently become self-employed
Contact Income Tax: general enquiries if you have a question about Class 4 National Insurance.
0300 200 3500
0300 200 3519
+44 191 203 7010
Monday to Friday: 8am to 8pm
Saturday: 8am to 4pm
Closed Sundays and bank holidays.