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Bitcoin can and usually should be addressed in your estate documents, but with care. Name it as an asset and point to where secured access instructions are kept — never write the actual seed phrase or private keys into a will, which can become a public document during probate and would expose your coins to anyone who reads it.

The person administering your estate — the executor — needs to know the Bitcoin exists and how the access plan works, at least in outline. Crypto is easy to overlook precisely because it leaves no bank statements; an executor who doesn't know to look may never find it, and the coins are simply lost.

Rules differ sharply by jurisdiction. How a will is validated, whether probate is public, how digital assets are legally treated, and what an executor is empowered to do all vary by country and sometimes by region. Cross-border situations — assets, heirs, or exchanges in different countries — add real complexity worth professional handling.

On tax, Bitcoin is frequently part of your taxable estate and may attract estate or inheritance tax, with thresholds and rates that differ widely and change over time. Heirs may also face capital-gains considerations when they eventually sell, often based on the asset's value at inheritance. Because both the legal and tax sides are jurisdiction-specific and consequential, this is the area where a qualified estate attorney and tax professional are most worth involving.