Inheritance & estate planning

Self-custody forces a hard question most people would rather avoid: what happens to your bitcoin when you die, or are incapacitated? There’s no bank manager to call, no beneficiary form, no probate court that can recover your keys. If your heirs can’t find or use your seed, the coins are simply gone — forever. Bitcoin is one of the few assets that can truly vanish with you. Planning for that isn’t morbid; it’s an act of love.

Two ways it goes wrong

• Too hard to reach — your heirs never learn the bitcoin exists, or can’t find or operate the seed. The coins are lost forever.
• Too easy to reach — a single seed written on paper in a drawer can be found and stolen by a thief, or an untrustworthy relative, while you’re still alive.

Good estate planning threads the needle between these two — reachable by the right people at the right time, and by no one before then.

Why you can’t just “leave the password”

A plain seed phrase is all-or-nothing: whoever has it owns everything, instantly. Hand it over early and you’ve created a theft risk today; keep it only in your own head and it dies with you. Bitcoin inheritance is really the art of splitting the difference safely.

Approaches, from simple to robust

• A letter of instructions — a sealed note with a trusted executor telling them what you hold and where the backup is (not the seed itself), with the seed secured separately. Simple, but leans on trust and secrecy.
• Multisig with distributed keys — the gold standard (recall the multisig lesson). A 2-of-3 where, say, you hold one key, a family member another, and a lawyer or a second location the third. No single person can steal it, yet your heirs can combine keys to recover it after you’re gone.
• Collaborative custody or time-locks — services that hold one key of a multisig with you, or “dead-man’s-switch” setups that release access after a long period of inactivity.

Write it down for non-technical heirs

The most elegant cryptographic setup fails completely if your family doesn’t know it exists or how to use it. Leave clear, plain-language instructions: what you hold, where the keys and backups are, how to combine them, and who can help them do it. Assume the reader knows nothing about Bitcoin. Revisit it whenever your setup changes.

Test it — an untested backup is only a hope

Have a trusted person actually walk through the recovery once, with a tiny amount, so you know for certain it works and the instructions make sense to someone who isn’t you. Most inheritance disasters are setups that were never rehearsed.

There’s one more grown-up matter most guides skip, and it ambushes people who ignored it: the taxman. Records and taxes, next.

Key takeaways

• With self-custody there's no beneficiary form or probate that can recover your keys — if heirs can't access the seed, the coins are lost forever. Plan between two failure modes: too hard to reach (lost) vs too easy (stolen while you live).
• The robust approach is multisig with distributed keys (e.g. 2-of-3 across you, a relative, and a lawyer) so no one can steal it alone but heirs can recover it — plus plain-language written instructions, tested once with a small amount.

Check yourself

Why is leaving a single written seed phrase for your heirs risky?

It can't be copiedIt's all-or-nothing: whoever finds it owns everything, so it's a theft risk while you're aliveSeeds expireIt only works once

What makes an inheritance backup trustworthy?

Keeping it entirely secretWriting clear instructions for non-technical heirs and testing the recovery once with a small amountMemorising itStoring it on an exchange