
VAT & Tax Compliance
Making Tax Digital ITSA 2026: Deadlines, Rules and How to Get Compliant Fast
A comprehensive guide to Making Tax Digital for Income Tax Self Assessment, which goes live in April 2026 for sole traders and landlords earning £50,000+. Covers the quarterly submission requirements (four updates plus a final declaration), what digital records you need to keep, HMRC-compatible software options, the points-based penalty system for late submissions, and how the £30,000 threshold drops in April 2027. Explains how Sage Sole Trader (free) and Sage Accounting handle MTD compliance, including Sage's MTD AI Agent — the UK's first agentic compliance tool.







