In Onvio Centre, select Setup > Firm Settings from the menu bar.
Select the MTD tab.
Select Add from the toolbar.
Enter your
Agent Reference Number
and
Description
, then select Next.
You will have received an Agent Reference Number when you set up your Agent Services Account (ASA) with HMRC for the purposes of MTD for VAT.
Select Authorise.
Read the HMRC privacy notice then, if you agree to the terms, select Continue.
Take the following steps in the HMRC web page.
Sign in with the correct Government Gateway account associated with your Agent Services Account.
Enter the six digit access code that HMRC will send to your mobile phone, landline, or other device.
Confirm your identity to HMRC.
Grant authority for Onvio to interact with HMRC on your behalf.
When you have completed HMRC's authorisation procedure, select Done. The Status of this Agent Reference Number should now be shown as Authorised.