MTD IT FAQs

How to Add Client Authorisations to Your Agent Services Account
Introduction Why You Need an Agent Services Account An Agent Services Account is required to connect your software to HMRC, sign up clients and manage ...
Wed, 30 Sep, 2026 at 6:17 PM
Importance of Creating a Tax Return in MTD IT
Welcome to this quick guide on the importance of creating a Tax Return in MTD IT. This guide will walk you through the essential steps. A tax return is an ...
Wed, 30 Sep, 2026 at 6:21 PM
How to Add Additional Transactions in MTD IT
Welcome to this quick guide on how to add additional transactions in MTD IT. This guide will walk you through the essential steps.   If you have already...
Thu, 23 Jul, 2026 at 12:50 PM
Unlink an individual in MY ADMIN
How to Unlink an Individual in My Admin and Re-link the client in Capium 365   Purpose: Follow these steps to remove an incorrectly linked individual from...
Thu, 23 Jul, 2026 at 12:30 PM
MTD IT - The client or agent isn’t authorised
18/08/2026 Update: HMRC has provided to us a troubleshooting document, which is attached to this support and has created this article. HMRC are very confid...
Tue, 18 Aug, 2026 at 4:45 PM