The short answer
Moving countries does not split a crypto portfolio cleanly at the border. Four questions have to be answered separately, and the answers frequently overlap in a way that produces tax in two places for the same period.
When did residence end in the departure country? Under that country's own rules, not by reference to your flight date.
When did residence begin in the arrival country? Under its rules, which may not align with the departure country's, producing a gap or an overlap.
Does the departure country charge anything on leaving? Exit charges, deemed disposals, and continuing-residence provisions vary widely and are the most commonly overlooked element.
Which country taxes a disposal made during the transition? Determined by residence at the time of the disposal, by any source rules, and by a treaty where one applies.
A crossing planned around the physical move rather than around these four questions is planned around the wrong thing.
Residence rules do not align
Different countries use different tests: day counts, permanent home, centre of vital interests, habitual abode, domicile concepts, and statutory tests combining several. Two countries applying their own rules to the same facts can both conclude that you are resident.
Where a treaty exists, a tie-breaker article typically resolves dual residence through a sequence — permanent home, centre of vital interests, habitual abode, nationality, and finally mutual agreement. Claiming a tie-breaker position generally requires filing and disclosure in at least one country; it is not automatic.
Some countries also apply split-year or part-year treatment, dividing the year into resident and non-resident portions. Others tax the whole year on a residence basis regardless of when the move occurred. Do not assume split-year treatment exists in either country.
Exit charges
Several countries impose a charge on ceasing residence, typically by treating assets as disposed of at market value on a departure date. Where such a rule applies to digital assets, unrealised appreciation becomes taxable on a specified date, with tax payable in local currency on assets that may not have been sold.
Related mechanisms include deemed disposal on emigration, extended taxing rights for a period after departure, temporary non-residence provisions that recapture gains realised during a short absence, and continuing obligations based on citizenship or on retained ties.
Anyone leaving a country with substantial unrealised crypto gains should establish, before departure, whether any of these applies, what the valuation date is, and what evidence will be required.
The arrival side
Two points matter on arrival.
Base cost. Does the arrival country give you a market-value base cost as at the date residence began, or does it look back to your original acquisition cost? This determines whether pre-arrival appreciation is taxed when you eventually sell. Countries differ, and it is a large number.
Pre-arrival planning windows. Some jurisdictions offer regimes for new residents with conditions that must be satisfied before or shortly after arrival. Where these exist, they are time-limited and cannot be adopted retrospectively.
What to do before the move
- Establish the residence-ending test in the departure country and the residence-starting test in the arrival country, and identify any gap or overlap.
- Determine whether any exit charge, deemed disposal, or temporary non-residence rule applies.
- Take a dated inventory of every holding: asset, quantity, acquisition date, acquisition cost, and market value with the price source, as at both the departure date and the arrival date. This single document answers most questions that arise later.
- Establish whether the arrival country gives a step-up in base cost.
- Check whether disposals should be made before or after the crossing, on the answers above rather than on intuition.
- Preserve travel records, accommodation records, and evidence of where ties were severed and established.
During the transition
Avoid disposals in the window where residence is uncertain unless the treatment has been determined in advance. A disposal made in an ambiguous period is the transaction most likely to be claimed by both countries.
Keep provider records aligned with your actual residence, and update them when it changes. Automatic information reporting follows the residence data providers hold, and a stale address routes your data to the wrong authority — creating a discrepancy to explain rather than an advantage.
Worked example
An individual leaves Country A in March and becomes resident in Country B in May, holding tokens with large unrealised gains.
Country A applies a deemed disposal on ceasing residence: a taxable event in March at market value, payable in Country A's currency, on assets not sold.
Country B gives a market-value base cost as at the start of residence: appreciation before May is outside its charge.
Between March and May the individual is resident in neither on those rules, but that gap does not mean disposals in the window are untaxed — Country A's rules may extend, source rules may apply, and a treaty may allocate the right differently.
Change one fact — Country A has no exit charge but a temporary non-residence rule — and a disposal made in the gap could be recaptured if the individual returns within the specified period.
What changes this answer
- The two countries' residence tests and their dates.
- Whether a treaty exists and what its tie-breaker provides.
- Whether an exit charge or deemed disposal applies.
- Whether the arrival country gives a base-cost step-up.
- Citizenship, for citizenship-based systems.
- Whether the move is permanent or temporary.
Related HolderTax pages
- Expatriation and the exit-tax analysis for token holders
- Treaty article mapping for crypto income types
- Cross-border gifts and inheritances of digital assets
Evidence note
This page describes a framework of questions, not the rules of any country. Not professionally reviewed. Every element depends on two national systems and possibly a treaty. Obtain advice in both countries before the move, and take the dated inventory described above regardless of what advice you receive.