MTD for Income Tax Self Assessment (ITSA)

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) is being introduced by HMRC from April 2026, on a phased basis depending on an individuals income.

Platinum is a dealer and business management system and will not support MTD for ITSA submissions. Income tax submissions often require information from multiple income sources (for example PAYE, dividends, interest, or other self-employment income) that sit outside Platinum. As a result, ITSA submissions must be completed using HMRC recognised software or via your accountant or tax agent.

Customers affected by MTD for ITSA should refer to HMRC’s official guidance for full and up to date information:

All guidance linked above is provided and maintained by HMRC and may change over time. Customers should always check HMRC’s website or speak to their accountant or tax agent to confirm their obligations.