Introduction
Calceum is software for Making Tax Digital for Income Tax (MTD for ITSA). It allows sole traders and landlords to maintain digital records and send quarterly updates to HMRC.
Supported users
Calceum supports individuals required to comply with MTD for Income Tax:
- Sole traders - Self-employed individuals with trading income
- Landlords - Property owners with UK or overseas rental income
Calceum does not currently support partnerships or limited companies.
Core functionality
- Record income and expenses manually, via bank connection, or spreadsheet import
- Maintain HMRC-compliant digital records
- Send quarterly updates to HMRC
- View estimated tax calculations
- Send end of period statements and make final declarations
HMRC recognition
We are completing HMRC production recognition for Making Tax Digital for Income Tax, and expect production access by the end of October 2026. Calceum will appear on HMRC’s list of compatible software once recognition is granted.
Next steps
- Start Guide - Set up your account
- Key Concepts - Understand how Calceum works
- MTD Overview - Learn about Making Tax Digital requirements