Professional
For one person with straightforward cross-border needs.
£1,200
billed annually
Includes:
- 1 Daysium Mobile licence
- 1 tax jurisdiction
- Automated day counting
- Evidence capture
- Summary reports
Membership fees
Memberships designed for cross-border lives
Choose the level of support, collaboration and governance your situation needs.
Membership tiers
Private Client
For more complex positions, with Concierge support from Daysium.
£2,500
billed annually
Everything in Professional, plus:
- 1 Daysium Mobile licence
- Up to 3 tax jurisdictions
- Daysium Portal
- Invite the advisors and support people you choose
- Concierge Service
Platinum
For two people whose positions are connected.
£5,000
billed annually
Everything in Private Client, plus:
- 2 Daysium Mobile licences
- Up to 5 tax jurisdictions
- You each see the other's day counts
Family Office
Governed oversight across the family.
from £10,000
billed annually
Book a call
Scoped with you on the call.
Includes:
- 4 Daysium Mobile licences
- Additional people: £1,200 each
- Our library of jurisdictions
- Daysium Portal
- Concierge
- Onboarding and rule configuration
- Governance and continuity
Prices are shown before tax.
Enterprise
For trust companies, multi-family offices and advisory firms that need a standard residence process across multiple client relationships.
Complete features list
Scroll sideways to compare tiers.
| Feature | Professional | Private Client | Platinum | Family Office |
|---|---|---|---|---|
| Essentials | ||||
| Daysium Mobile licences | 1 | 1 | 2 | 4 |
| Additional Daysium Mobile licences | Not included | Not included | £1,200 each | £1,200 each |
| Tax jurisdiction rulesets | 1 | up to 3 | up to 5 | our library |
| Invited seats — advisors, team and assistants | Not included | named people | named people | named people |
| Concierge Service | Not included | Included | Included | Included |
| Daysium Portal | Not included | Included | Included | Included |
| Daysium Portal | ||||
| Calendar view of the day counts | Not included | Included | Included | Included |
| Invite advisors, accountants and assistants | Not included | Included | Included | Included |
| Presented reports, not raw spreadsheets | Not included | Included | Included | Included |
| Each person sees the other's day counts | Not included | Not included | Included | Included |
| Daysium Mobile | ||||
| Automated day counting | Included | Included | Included | Included |
| Timeline | Included | Included | Included | Included |
| Evidence | Included | Included | Included | Included |
| Photo capture | Included | Included | Included | Included |
| Photo gallery upload | Included | Included | Included | Included |
| Add notes | Included | Included | Included | Included |
| Audit trail | Included | Included | Included | Included |
| Day counts and reporting | ||||
| Annual tax return day count | Included | Included | Included | Included |
| Global physical presence count | Included | Included | Included | Included |
| Excel summary reports | Included | Included | Included | Included |
| Control and succession | ||||
| Control over who sees what | Not included | Not included | Not included | Included |
| Account-wide consent log | Not included | Not included | Not included | Included |
| Governance and continuity | Not included | Not included | Not included | Included |
| Data successor | Not included | Not included | Not included | Included |
| Rule management for the family’s own advisors | Not included | Not included | Not included | Included |
| Advisory and governance | ||||
| Data residency outside the UK* | Not included | Not included | on request | on request |
| Client support | ||||
| Included | Included | Included | Included | |
| Chat support, 24/7 | Included | Included | Included | Included |
| Talk to a human, 9am–5pm UK | Not included | Included | Included | Included |
| Private Client Advisor | Not included | Included | Included | Included |
Security is the same at every level — see Security.
* Subject to charge.
Before you commit
What happens on the call
We're going to establish three things.
- 1
Your circumstances
Where you spend your time, which jurisdictions are in play, and the strategy you are working to.
- 2
How Daysium supports it
Which rules need to be set for that strategy, how Daysium counts against them, and how the record is built through the year.
- 3
Whether it fits
If Daysium is not right for your situation, we will say so. If it is, we will show you which membership fits and what onboarding involves.
What is Daysium?
Daysium is a tax residence platform with two connected products. Daysium Mobile keeps your day counts current against the rules set for your position and builds the record as you travel. Daysium Portal gives named people permissioned access to the live day-count position and reports where your membership includes it.
How do the membership plans differ?
Professional is for one person with one jurisdiction, on Daysium Mobile. Private Client adds Daysium Portal, up to three jurisdictions, the ability to invite your advisors, and the Concierge Service. Platinum adds a second licence, up to five jurisdictions, and lets the two of you each see the other's day counts. Family Office covers the whole family, with governance and continuity across it.
What is Concierge Service?
Concierge Service is included from Private Client upwards. The Daysium team handles onboarding, configures the rules for the strategy you and your advisor have established, liaises with your advisors where appropriate, and remains available for product support. Concierge does not provide tax advice.
Can I change my plan later?
Yes. If your circumstances or the people who need to be involved change, talk to us and we can move you to the appropriate membership.
Is there a trial?
A 14-day trial is available for Professional, Private Client and Platinum where you would like to try Daysium before committing. Family Office and Enterprise begin with a conversation so we can understand the people, rules and access model involved.
How quickly will I see value?
The record begins building from the day you start using Daysium. Your current day counts and supporting record then develop as you travel. Daysium does not automatically recreate an historic period before you joined, so starting now is more useful than waiting for a perfect historic record.
Guided by tax experts
Valuable partnerships
A pioneering company in the field of day counting and record-keeping. Their innovative tool simplifies complex date-related calculations, offering immense value to our clients. This partnership marks a significant step towards enhancing our client services with advanced solutions.
Alan Kennedy · Managing Director, Trident TaxSimplifying international tax
The Daysium team deliver technology that makes taxes easier for expats and globally mobile individuals. What’s not to like about that? We’re really excited to work with them and offer our clients the ability to use this technology.
Stephanie Wickham · Founder, Expat TaxesSomeone on the end of the phone
We found out about Daysium from our advisors, it’s a fantastic product, very easy to use and with someone on the end of the phone in case of need or to fix any issues, we would and have recommended it to anyone that would need such a product, it’s totally intuitive too!
Two decades of spreadsheets, ended
After more than two decades of manually counting days spent in various jurisdictions using Excel, I discovered Daysium. It’s transformed how I record my whereabouts — automated, precise, a defensible record ready for when I need it.
Still deciding
Not sure which membership fits?
That is what the call is for. Tell us how your life crosses borders and who needs to be involved. We will tell you which membership fits — or whether Daysium is the wrong answer for you.