Please act on the following to complete MTD agent Setup
Step 1: Providing MTD Agent Reference Number (ARN) You can only use this service once after verifiying your ARN
Step 2: Conduct Grant Authorisation with HMRC User ID given Log into HMRC with HMRC MTD User ID given below to complete HMRC MTD Agent Grant Authorisation
You must use your MTD Agent User ID and not the regular HMRC User ID
If you DO NOT have MTD Agent HMRC Gov Gateway Credentials or an Agent Reference Number (ARN), you must first register with HMRC.