Cross-border crypto estates

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

• Where the person was domiciled/resident. This usually drives which inheritance law applies to the estate as a whole.
• Where the assets are held. Exchanges have their own jurisdiction and procedures; self-custody crypto has no location at all, which is precisely why tax authorities increasingly rely on residency rules and reporting frameworks.
• Where the heirs live. Inheritance rights, forced-heirship rules and tax treatment differ per heir’s location.
• Where the business is. Corporate holdings add a fourth layer (crypto in a business estate).

The European dimension

Within the EU, the Succession Regulation (EU) No 650/2012 establishes a single succession law for a cross-border estate: generally the law of the country of the last habitual residence of the person who passed away, unless that person chose the law of their nationality. It also created the European Certificate of Succession, which heirs and executors can use to prove their status across member states. It applies to succession, not to taxation or to the technical question of access. The Regulation does not apply in Denmark or Ireland, and it does not apply in the United Kingdom; there, national conflict-of-law rules continue to govern. If the estate touches two EU countries, ask a qualified professional whether the Regulation determines which law applies.

What this means

• Conflicting rules can both apply. Two countries may each claim succession rights or taxing rights. This is normal and solvable, not proof of a mistake.
• 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.
• Documentation doubles. Expect to satisfy authorities in more than one jurisdiction, with translations and apostilles where applicable.
• 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.