What Our Clients Say:

"After more than two decades of manually counting days spent in various jurisdictions using Excel, I discovered Daysium.
It’s transformed how I track my whereabouts — automated, precise, a defensible record ready for when I need it."

Sanjeev P, Zurich

Built for globally mobile lives.

Daysium helps you avoid tax mistakes by:

  • Automatically logging travel events
  • Counting days using tax jurisdiction-specific rules 
  • Creating a secure, audit-ready record with corroborative evidence

No spreadsheets. No guesswork. Just clarity.