How Do You Include Cryptocurrency in a Last Will and Testament?
Planning for what happens to crypto holdings after death runs into a problem traditional estate planning rarely faces: the asset can vanish permanently if the wrong information ends up in the wrong document, or the right information never reaches anyone at all.
The short answer
A will should identify that cryptocurrency exists as part of an estate and point an executor toward where access instructions are securely stored, but it generally should not contain private keys or seed phrases directly. Because a will typically becomes a public record during probate in many jurisdictions, writing sensitive access details directly into it could expose those keys to anyone who later reads the filed document.
Why the public nature of wills creates a unique problem
Traditional assets like a bank account or a house don’t disappear if their existence becomes public knowledge during probate — a bank can verify an heir’s identity and release funds through established procedures. Cryptocurrency doesn’t work that way. Whoever holds the private keys controls the asset outright, with no institution able to verify identity and reverse or reissue access. If a seed phrase were written directly into a will, anyone with access to that filed document — potentially including the public, depending on jurisdiction — could take the funds before an heir ever gets there.
What a will should generally include
- A statement that crypto assets exist. Naming that the estate includes cryptocurrency holdings, without listing specific keys or seed phrases.
- A reference to where instructions are stored. Pointing to a secure, separate location — such as a safe deposit box, an attorney’s records, or a dedicated document — where an executor can find actual access details.
- Executor guidance. Instructions for how the executor should handle the asset, since passing down private keys involves options that a layperson executor might not know exist without guidance.
Where the sensitive details actually belong
The private keys, seed phrases, or hardware wallet PINs themselves are usually better kept in a separate, secure document not filed with the court — something an estate attorney can help structure so it’s accessible to the right person at the right time, but not part of the public probate record. This might mean a sealed letter of instruction, a safe deposit box, or a trust structure, depending on the size of the estate and state-specific rules, which vary and change over time.
Why an executor unfamiliar with crypto is a real risk
Even with perfect documentation, an executor who doesn’t understand how wallets work could accidentally lose access — for instance, by not using a hardware wallet correctly or mishandling a device. Naming someone knowledgeable, or at minimum leaving clear plain-language instructions, reduces the odds that assets become unreachable through simple unfamiliarity rather than any theft.
Tax and legal considerations
Cryptocurrency held at death is generally part of the taxable estate, and its treatment can involve rules that vary by state and change over time — including how failing to list crypto assets could create problems in other legal contexts, a comparison that illustrates why disclosure matters even when direct key details stay elsewhere. Consulting an estate attorney familiar with digital assets is generally the safest way to navigate jurisdiction-specific requirements.
The takeaway
A will’s job is to point toward crypto holdings and how to reach them, not to store the keys itself. Keeping sensitive access information in a separate, secure location — while making sure an executor knows it exists — is what actually protects the asset through the transition.