Call HMRC for help with your deferred National Insurance contribution payments.
0300 200 3500
+44 191 203 7010
Our phone line opening hours are:
Monday to Friday: 8am to 6pm
Closed on Saturdays, Sundays and Bank Holidays.
You can also find out information in:
Write to HMRC to pay your deferred National Insurance, or for help with deferred National Insurance contribution payments.
Couriers should use a different address.
National Insurance Contributions and Employer Office
HM Revenue and Customs