Is there a tax on leaving a country?

In some systems, yes: an exit tax treats unrealised gains as if realised on departure. Not every country has one, and the rules vary widely. It is one of the first things to check before a residency move, because it can make leaving expensive and change the timing of a sale or a move. Confirm the position with advisers in the country being left.

Does changing tax residency change my domicile?

No. Residency can change relatively quickly, but domicile, your permanent home in law, changes only through a genuine and demonstrable shift of permanent home, and it is easy to retain. In systems that tax inheritance on domicile, a family can become non-resident and reduce income tax while leaving its estate exposed to the old country's inheritance tax. Domicile must be planned separately.

How do I make sure a residency change actually works?

By genuinely breaking residence in the old country, giving up the available home and moving the centre of life, and genuinely meeting the new country's residence tests, so the two align in time. A token move that keeps home, family or business behind usually fails. Because CRS reports by residence, the change must be real and documented, and planned with cross-border advice.

Tax residency & substance

What to Consider Before Changing Tax Residency

Changing tax residency is not simply moving house. It requires genuinely leaving the old country's residence, which can trigger exit taxes and requires breaking enough ties to be treated as non-resident, meeting the new country's residence tests, and understanding that domicile and inheritance exposure may not move with you. Because financial accounts are reported by tax residence under CRS, the change must be real and documented. The questions below should be answered before a move, not after.

Key points

Leaving a country's tax residence can trigger an exit tax on unrealised gains in some systems.
Residency changes only if enough ties are genuinely broken; a token move is not enough.
Domicile and inheritance exposure often do not move when residency does.
The new country's residence tests and any special regimes must be met deliberately.
CRS reports by residence, so the change must be real and well documented.

Leaving the old country

The hardest part of changing residency is usually leaving, not arriving. Many countries do not let a taxpayer walk away cleanly: some impose an exit tax, treating unrealised gains as if crystallised on departure, and most require a genuine break of residence, giving up the available home, moving the family, and shifting the centre of personal and economic life, before they stop treating a person as resident. A move that keeps a home, a family or a business behind often fails, and residency is pulled back.

So the first questions are about the country being left: is there an exit charge, what ties must be severed, and over what period, to be treated as non-resident there. Getting this wrong means paying tax in two places.

Arriving in the new one

The destination has its own tests. Becoming tax resident somewhere new usually requires meeting day-count and ties thresholds, and some countries offer special regimes, lump-sum or remittance-based arrangements, that must be applied for and qualified for rather than assumed. A family that spends time in the new country but does not actually meet its residence tests may find it has left the old residence without securing the new one, the worst of both.

The move should therefore be planned so that non-residence in the old country and residence in the new one line up in time, with the new country's rules and any favourable regime confirmed in advance.

Domicile and estate

Changing residency does not change domicile. In systems that tax inheritance on domicile, a family can move, become non-resident and reduce income tax, yet leave its worldwide estate exposed to the old country's inheritance tax for years, because domicile is sticky and changes only through a genuine, demonstrable shift of permanent home. This is the exposure most often missed in a residency move.

So a residency change should always be tested against the estate position: does the old country still tax the estate on domicile, and if so, what deliberate steps over what time frame would change that. Income-tax planning that ignores the estate is only half a plan.

A pre-move checklist

Before moving, confirm each of the following with qualified cross-border advisers. Whether the old country imposes an exit tax, and on what. Which ties must be broken, and over what period, to be treated as non-resident there. The residence tests and any special regime in the new country, and how to qualify. Whether domicile and inheritance exposure remain in the old country, and what would change them. How the family's structures will be reported by tax residence under CRS after the move. And the timing, so that leaving and arriving align.

A residency change that answers these before departure is clean and durable. One that answers them afterwards often means double taxation, a failed move, or an estate exposure the family did not intend. This page frames the questions; the answers require advice specific to both countries.

Frequently asked questions

Whether the country you are leaving imposes an exit tax, which ties you must break to be treated as non-resident there, the residence tests and any special regime in the new country, whether your domicile and inheritance exposure remain behind, and how your structures will be reported by tax residence under CRS. Confirm all of this before moving, with advisers in both countries.

Sources: General international tax principles on exit taxation, residence tests, breaking ties, special residence regimes, and the distinction between residency and domicile for income and inheritance tax. OECD Common Reporting Standard, which reports financial accounts by country of tax residence, version 2.0 from January 2026. Educational content, not personal tax or legal advice; a residency change should be planned with qualified advisers in both the departing and arriving countries.

This Resource is provided by Caelius for general information and educational purposes only. It does not constitute investment, legal, tax or financial advice, nor an offer or solicitation. It is general in nature, may not apply to your circumstances, and may change without notice. Take any decision only after advice from qualified professionals who know your situation.