Every member's day counts

For Family Offices

A record that stands up to scrutiny.
View of Daysium Portal for tax residency compliance.

Built for the complexity of a family office

Daysium brings together real-time day counts, contemporaneous evidence, and a single shared view for the family office, its principals and their advisors.

Nothing is reconstructed after the fact, and nothing is missed.

Managing tax residency across a family is a coordination problem.

Each principal travels independently.

Each has a different tax residency position.

Each needs a record that will stand up to scrutiny if questions arise.

And behind all of it, you have advisors who can only work from what they're given — which too often is a spreadsheet already out of date when it was sent.

That's not tax residency evidence. It's a risk factor.

Daysium's Family Office Solution

Evidence-grade view of day counts for every principal, across every jurisdiction.

Coded tax law, not just a counter

Daysium applies the actual tax residency rules — Statutory Residence Tests, Schengen limits — to every day counted, for every member.

Evidence that stands up to scrutiny

Geo-tagged records, travel documents and diary notes captured as they happen in Daysium Mobile. If questions arise, the record is already there.

Every member, one view

Principals, partners, family members and tax advisors — Daysium brings the whole picture together in Daysium Portal. Each member controls what they share; advisors and family members see counts and status only — never someone else's location or evidence.

FAQs

Family Offices

Can different family members have different levels of visibility?

Can different family members have different levels of visibility?

Can different family members have different levels of visibility?

Yes. Daysium Portal scopes access individually; a principal's counts and status are shared only with those they choose to invite, and evidence and location stay private even from other family members unless explicitly granted.

We already work with a tax advisor — does Daysium replace them?

We already work with a tax advisor — does Daysium replace them?

We already work with a tax advisor — does Daysium replace them?

No. Daysium sits alongside your existing advisors, giving them a live view of the record without replacing their advice or strategy.

How does billing work as our family office grows?

How does billing work as our family office grows?

How does billing work as our family office grows?

Family Office membership scales with the number of users. Speak to our team to find the right structure.