UK tax year vs calendar year: setting up tracking periods

The UK tax year runs from 6 April to 5 April the following year. If you also file elsewhere on a calendar basis, you will answer multiple “how many days” questions for the same physical trip. Custom tracking years let you label and filter stays for each regime without duplicate entry.

Name your periods clearly—e.g. “UK 2024–25” and “Calendar 2025”—so filters in the workspace stay intuitive.

When a stay spans two periods, clipping rules should allocate days to each window automatically. That is the role of period-aware totals in your dashboard.

Cross-check against HMRC guidance and your adviser for split-year treatment and treaty claims.