Cessation of submissions by x400

HM Revenue & Customs (HMRC) is working with its service providers to streamline the technical links provided to assist traders in making their regular submissions. They are currently contacting a small number of traders who still use older means of communication in order to look at options for improvement.

You will only be affected if:

  • you send submissions to HMRC using x400 over a leased x25 line
  • you send submissions to HMRC using x400 over a Public Switch Telephone Network (PSTN) dial-up service

If you make use of a leased x25 line or a dial-up service and you would like to find out more about the available options, please look at the Frequently Asked Questions in the first instance.