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Cross-border crypto estates
The extra dimensions when assets or family span jurisdictions: which law applies, where assets sit, double taxation, and the professional team needed.
Crypto ignores borders; law does not. When the person who passed away lived in one country, held crypto in another, or had heirs in a third, the estate enters a zone where no single answer is safe, and where the only wrong move is acting as if one country’s rules were the whole picture.
The dimensions
- Which inheritance law applies? Which inheritance law applies can depend on factors such as habitual residence, domicile, nationality, the location or nature of certain assets, and a valid choice of law, depending on the jurisdictions involved. Within the EU member states that take part in the Succession Regulation (all EU member states except Denmark and Ireland), the starting point is often the last habitual residence of the person who passed away, unless that person validly chose the law of their nationality. Which rules apply in a concrete cross-border case must be established separately. The residence of an heir does not by itself change which inheritance law applies to the estate; inheritance rights and forced-heirship rules are determined by the applicable inheritance law.
- Which countries can tax? The residence of individual heirs can be fiscally relevant, alongside the residence of the person who passed away, the location of the assets and the platform. Inheritance, wealth and capital-gains rules can overlap; treaties and local relief rules must be verified per country pair.
- Where the assets are held. Exchanges have their own jurisdiction and procedures. Self-custodied crypto has no obvious legal “location”: where a hardware wallet is located does not automatically determine where the crypto is legally situated; For self-custody there is no central provider administering the position. Which tax connecting factors, valuation rules and reporting obligations apply must therefore be checked separately for the jurisdictions involved with the competent tax authorities.
- Where the business is. Corporate holdings add another layer (crypto in a business estate).
The European dimension
For a cross-border estate, it must first be established which inheritance law and which procedures apply. Factors such as the habitual residence, any choice of law and the countries involved can be relevant. Within the EU member states that take part in the Succession Regulation (all EU member states except Denmark and Ireland), Regulation (EU) No 650/2012 contains rules on applicable law and created the European Certificate of Succession, but which law applies in a specific case must be determined under those rules and the individual circumstances. Use the current official cross-border inheritance information and involve, where necessary, a competent professional in the jurisdictions concerned. The Regulation applies to succession, not to taxation or to the technical question of access.
What this means
- Conflicting rules can both apply. Two countries may each claim succession rights or taxing rights; that in itself is not proof of a mistake. This can require coordination between several jurisdictions, and whether double taxation can be avoided or reduced depends on local rules and any treaties or relief arrangements.
- Forced-heirship. Several legal systems protect certain heirs (spouse, children) from being disinherited; a will valid in one country may conflict with another’s mandatory rules.
- Double taxation. Death duties and capital-gains taxes can overlap; treaties and local relief rules exist but must be verified per pair of countries.
- Additional requirements are possible. A cross-border estate may have additional document, translation, legalisation or recognition requirements. Check with each jurisdiction and body involved which documents are actually required.
- Which authority document a platform accepts. Each exchange decides which documents prove representation for a deceased account, usually the local equivalent of probate or a certificate of inheritance for the account’s jurisdiction. Ask the platform directly which documents it accepts before commissioning translations or apostilles.
- Access is still separate. Whatever the law says about who inherits, technical access to self-custody crypto depends on the keys and devices that exist, the legal layer and the technical layer stay separate (see legal authority vs technical access).
The professional team
- One local professional per relevant jurisdiction, or a firm that coordinates across them, never a single “one-size” opinion.
- The estate’s documents (will, inventory, valuations) should be prepared knowing they will be read in several places.
The honesty rule
This platform’s country pages are written for their own jurisdiction and say so. When the estate is cross-border, the correct answer is not “this page” but “a coordinated professional review in the relevant countries.” Ask for it early, retrofitting cross-border structure is expensive.
Sources and useful links
- EUR-Lex, Regulation (EU) No 650/2012 on successionSource accessed: 2026-08-13