Tell HMRC about a change to your personal details
If HMRC needs to contact you about anything confidential they’ll reply by phone or post.
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 already have a personal tax account, you can set one up.
Call HMRC to:
- find out if you have to pay National Insurance
- get help with completing certificates so you can get healthcare abroad
Our phone line opening hours are:
Monday to Friday: 8am to 6pm
Closed on Saturdays, Sundays and Bank Holidays.
If your call is not urgent, you can find out information in:
HMRC cannot give you an estimate of your State Pension but you can get a State Pension statement online.
Find out about call charges
Write to HMRC with your National Insurance queries if you’re a non-UK resident.
You do not need to include a street name, city name or PO box when writing to this address.
Couriers should use a different address.