You may be using software to interact with HM Revenue and Customs (HMRC), for example to send your Self Assessment tax return.

You can use this service to:

  • check which software you’ve given permission to
  • remove permission from any software, for example permission to file your return

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Before you start

To sign in for the first time, you’ll need:

  • a Government Gateway user ID and password - if you do not have a user ID you can create one when you use the service
  • a permanent National Insurance number