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This guide outlines how to set up UK Corporate Tax integration in Silverfin and submit corporation tax returns to HMRC.

TABLE OF CONTENTS

Ensure UK Corporate Tax Integration is set up

To proceed with submission, you need to have UK Corporate Tax integration in place. 

  1. As an admin user, navigate to https://integrations.getsilverfin.com/, login and authorise your firm.
  2. Click on the 'UK Corporation Tax' integration tile.
  3. Click on the 'Create UK Tax integration' button in the top right corner.

How to submit to HMRC? 

  1. From the client overview screen in Silverfin, click on 'Actions'.
  2. Click ' Download data'.
  3. Click 'iXBRL Corporation Tax'.
  4. Click 'Submit to HMRC'. This takes you to the integration screen which looks like the below: 
  5. Enter your HMRC credentials.
  6. Select/deselect 'Test submission' checkbox.
  7. Click 'Submit to HMRC'.
    • If this is a test submission, it will validate the submission package with HMRC. You will be taken to the client overview screen and into the communication panel on the right hand side. Here you will receive an acknowledgement message and shortly afterwards you'll receive either a success or error response.
    • If it is a live submission, the flow is exactly the same, but the submission package will actually be submitted to HMRC.
For test submissions, HMRC credentials are not required.