Spreadsheets feel flexible because everyone can open them. They become fragile when residence analysis depends on several people, several jurisdictions, changed travel plans and evidence that lives outside the sheet.
What spreadsheets miss
- Which document supports which journey.
- Whether a journey was manually entered, OCR extracted or GPS supported.
- Which tax year, timezone and counting rule was used.
- Whether the principal, spouse and dependants have separate residence profiles.
- What changed after an assistant corrected a flight or uploaded new evidence.
Why this matters for CRS and SRT
CRS self-certification and UK SRT reviews both depend on reliable underlying facts. If those facts are scattered, every review becomes a clean-up project. That creates friction for clients and low-value work for advisers.
The Atrium alternative
Atrium is designed around a journey-first record: trips are confirmed, evidence is attached, day counts are computed from one factual source, and advisers receive a readable export. The goal is simple: make tax-residency admin boring before it becomes urgent.
Useful search intents
tax residency calculator, day count calculator, tax residency app, travel day tracker, CRS records, SRT spreadsheet alternative.