What happens to your crypto when you die?
The short, uncomfortable answer: if nobody has your keys, nothing happens. Your crypto sits at its address forever, visible to everyone and spendable by no one. Here is how that plays out in practice — and the four ways to prevent it.
The part of your estate that ignores the law
When you die, most of your property passes to your heirs through a legal process. A court can order a bank to release your accounts. A registrar can transfer your house. An insurer can pay your beneficiaries. Every one of those transfers works because an institution controls the asset and must obey the order.
Self-custodied crypto has no institution. A Bitcoin address is controlled by whoever knows its private key — not by whoever a court says should control it. A probate order naming your heir is, to the Bitcoin network, a piece of paper. If the key died with you, the coins are not "transferred to the estate." They are simply unspendable, forever, while remaining publicly visible on chain. Your family may be able to see the inheritance they cannot touch.
Estimates of how much Bitcoin is already lost this way range from 3 to 4 million coins — a meaningful slice of everything that will ever exist. A famous fraction of that belongs to people who died without a plan.
What actually happens, case by case
Crypto on an exchange
This is the one case that behaves like a bank account, because it is one in every way that matters. Exchanges have compliance departments and death processes: your executor presents a death certificate and probate documents, and after some months the exchange releases the assets to the estate. Slow, but recoverable. The trade-off is that exchange custody carries all the risks that make people self-custody in the first place — and an exchange account your family doesn't know exists is still lost, because no exchange searches for dead customers.
A hardware wallet in a drawer
The device itself is nearly irrelevant; the seed phrase is everything. If your family finds the wallet but no PIN and no seed phrase, the coins are gone. If they find the seed phrase, they have everything — which cuts both ways: anyone else who finds it first also has everything. A hardware wallet without a succession plan is a very durable way to lose money slightly more slowly.
A seed phrase in a will
Worse than it sounds, and covered in depth in why you should never put your seed phrase in your will. Two facts collide: a will becomes a public court record in probate in many jurisdictions, and a seed phrase in a public record is an open invitation. And before probate, a will is typically stored with people — lawyers, witnesses, relatives — any of whom can spend your coins while you are alive if the phrase is written in it.
Nothing at all
The default, and the most common. The family knows "there was some Bitcoin" and finds nothing, or doesn't know at all. No customer support exists. No recovery process exists. This outcome is permanent.
The four real solutions, honestly compared
| Approach | How it works | The catch |
|---|---|---|
| Custodial / exchange | Institution holds keys; legal process transfers them | You've reintroduced the counterparty risk self-custody exists to remove |
| Shared seed phrase | Heir holds a copy of your seed now | Your heir (or anyone who finds their copy) can spend everything today |
| Split secret / multisig | Seed split into shares, or 2-of-3 keys | Strong but operationally hard; families fumble shares and ceremonies over decades |
| Dead man's switch | A smart contract releases funds to your heir only after you stop checking in | You must actually check in; a stolen owner key is still a stolen vault |
The first three all share one structural weakness: they require either trusting an institution, trusting your heir with live spending power, or trusting your family to execute a multi-step cryptographic ceremony years from now under grief. The fourth — the dead man's switch — is the only one where your heir gets nothing while you're alive and everything when it matters, with no third party in between.
This is what Will & Key does. A self-custody vault on Ethereum L2: deposit, name your heir's wallet, check in on your schedule. Go silent past your chosen period and your heir can claim; you keep a veto window; after it, the transfer is automatic and final. No custodian, no seed-phrase sharing, a 0.5% fee only when an inheritance actually settles.
See how it worksWhichever route you choose, do these three things
- Make the inheritance findable. Your family can't claim what they don't know exists. A sealed letter that says what you own and where the instructions are — without containing any secrets itself — solves the most common failure for free.
- Keep custody cold. Whatever succession plan you pick, the coins themselves belong on a hardware wallet, not an exchange. (A Ledger or Trezor is under $200 — less than an hour of an estate lawyer's time.)
- Rehearse once. Whatever your heir must eventually do, have them do a dry run now, while you're alive to correct it. Every recovery plan that has never been rehearsed is a hypothesis.
The tax and legal footnote
Inherited crypto is still part of your taxable estate in most jurisdictions, whether or not the keys survive — your heirs can owe tax on coins they cannot access, which is its own special nightmare and one more reason not to improvise. Nothing on this page is legal or tax advice; estate law is local and worth one professional conversation, ideally with someone who has heard the word "blockchain" before.
Next: a practical crypto inheritance plan you can finish this weekend.