BRIDGES · Taxes and residency

Center of vitalinterests

Center of vital interests

Center of vital interests — a criterion for determining tax residency based on where a person family and economic ties are concentrated.

tiesfamily and business
residencecriterion
in a disputebetween two countries
  • 4 min read
  • Updated: July 2026
  • BRIDGES Research Team
In brief — 30 seconds
What it is
Centre of vital interests — where a person’s ties are concentrated
Why
Determining tax residence in disputed cases
What it is judged by
Family, home, work, business, economic ties
When it matters
When two countries dispute which one you are resident of
How to use it
Build your ties deliberately when relocating

In plain words

The centre of vital interests is a criterion used to determine a person’s tax residence when a simple count of days does not give a clear answer. It looks at where a person’s life is actually concentrated: where their family lives, where their main home is, where they work and do business, where their main economic and personal ties are.

This criterion is especially important in disputed situations, when two countries both regard a person as their tax resident (because they spend a lot of time in both, for example). Tax treaties contain special rules for resolving such conflicts, and the centre of vital interests is one of the first and main tests: residence is attributed to the country with which the person has closer personal and economic ties.

For those relocating, obtaining a second residence or living across several countries, this is a key concept: formally “moving” is not enough — what matters is where the centre of your life really is, because that is what determines your tax obligations. We help build and document the centre of vital interests deliberately when relocating, so as to avoid disputes over residence and double taxation.

Where the centre of vital interests matters

Determining tax residence
Resolving dual residence disputes
Planning a move
Living across several countries
Changing tax residence
Protection against double taxation

What matters about the centre of vital interests

What it is judged by
  • Where the family lives
  • Main home
  • Personal ties
Economically
  • Where the work is
  • Where the business is
  • Where the main assets are
When it matters
  • A dispute between two countries
  • Many days in both
  • The treaty test
Keep in mind
  • Not only days
  • Real ties
  • Document them

How residence is determined

  1. 01Assess the ties in each country
  2. 02Determine where the centre of life is
  3. 03Apply the treaty test
  4. 04Document the ties
  5. 05Clear residence

What you need to know

  • The centre of vital interests is where a person’s life is concentrated
  • It determines tax residence in disputed cases
  • It takes into account family, home, work, business and ties
  • The main test when two countries dispute residence
  • More important than a formal move — where the centre of life really is

Common mistakes

  • Assuming only the count of days matters
  • Formally “moving” while leaving the centre of life in the old country
  • Not documenting ties with the new country
  • Ignoring the risk of dual residence
  • Not taking the criterion into account when planning a move

What this means for a BRIDGES client

We help build the centre of vital interests deliberately when you relocate: we move and document real ties — family, home, business — in the right country. That way your tax residence becomes unambiguous, and disputes between two countries and double taxation do not arise because the centre of your life remained elsewhere.

Frequently asked questions

01 /What is the centre of vital interests?

A criterion for determining tax residence by where a person’s life is actually concentrated: family, home, work, business, main personal and economic ties.

02 /When does this criterion matter?

In disputed cases, when two countries both regard a person as their resident. It is then applied as one of the main tests in tax treaties.

03 /Is simply moving enough?

No. What matters is not a formal move but where the centre of your life really is. If your family and business remained in the old country, residence may remain there.

04 /What indicators are used?

The totality: where the family lives, where the main home is, where the work and business are, where the main assets and personal ties are. The real picture is assessed.

05 /How is it connected with dual residence?

It is the centre of vital interests that often resolves the dispute when two countries claim a person: residence is attributed to the country with closer ties.

06 /How can you protect yourself when relocating?

Deliberately move real ties to the new country and document them. We help build the centre of vital interests so that residence is unambiguous.

See also

Read next

Dmitry Nagy
AuthorDmitry NagyInternational Tax Consultant, BRIDGES
Sergey Evdokimov
Reviewed bySergey EvdokimovManaging Partner, BRIDGES
Updated
July 2026
Version
1.0
Scheduled review
January 2027
Back to glossary

Living across several countries?

We will help build and document your centre of vital interests — so that your residence is clear, without disputes or double tax.

Message us on WhatsApp →