When someone dies owning a bank account, there is a known institution to contact, a process for the executor to follow, and in the worst case, delay and paperwork, but not permanent loss. A cryptocurrency wallet does not work this way. There is no institution to call, no customer service line that can reset access, and no legal order that can compel a blockchain to release funds to an heir who does not hold the private key. If the seed phrase or key is not known, or not accessible, the funds are not delayed. They are gone, in every practical sense, permanently.
Why this catches families off guard
Most estate planning is built around institutions that hold assets on a person's behalf and that respond to a death certificate and a grant of probate. Crypto held in self-custody inverts that entirely, the whole point of the arrangement while the owner is alive is that no institution holds it on their behalf. That is a genuine security advantage against theft, but it means the ordinary mechanism families rely on after a death, contacting the institution, simply does not exist. Probate courts, too, are often working from a framework built for property registries and bank statements, and can be poorly equipped to handle an asset whose entire value depends on a string of words nobody can locate.
We see this most often not as a dramatic story but a quiet one: a spouse or adult child aware that meaningful value existed somewhere, with no functional way to reach it, because the one person who knew the seed phrase never wrote down where it was, or wrote it down somewhere nobody else knew to look.
The tension at the center of an inheritance plan
The core difficulty is that the same secrecy that protects a seed phrase from theft while its owner is alive is exactly what makes it unreachable to an heir after death. A plan that solves for one without addressing the other is not really a plan. The goal is not to remove that tension, since it cannot fully be removed, but to manage it deliberately rather than leaving it to chance.
An inheritance plan that only lives in one person's head is not a plan, it is a bet that nothing happens to that person unexpectedly. The plan needs to exist somewhere durable and discoverable by the right people, without being discoverable by the wrong ones.
Practical steps worth taking
- A written letter of instruction, stored with a solicitor or in a safe deposit box rather than in the will itself, since a will typically becomes a public document during probate in many jurisdictions and should never contain a seed phrase directly.
- A multi-part access scheme, such as splitting a seed phrase or using a multisignature wallet with keys distributed among trusted parties, so no single document or person holds complete access on their own.
- A designated, informed executor or trusted contact who knows that crypto assets exist and where the instructions to access them are held, even if they do not hold the keys themselves.
- A periodic review, at least annually, since wallets are created, consolidated, or migrated to new hardware more often than most people expect, and a plan built around an old wallet is as useless as no plan at all.
- A clear inventory of which assets exist, on which networks, and roughly what they are worth, since heirs unfamiliar with crypto often do not know what to look for even once they have access.
What to do if access has already been lost
If a wallet's owner has died and a full working seed phrase genuinely cannot be located, recovery is not guaranteed and, in a large share of cases, is not possible at all. What can sometimes still help is a partial recovery, a fragment of a passphrase, an old hardware wallet with residual access, or device-level clues about how the original backup was structured. That kind of partial information is worth preserving and reviewing carefully before assuming nothing more can be done, but it should be approached without the expectation of a guaranteed outcome.