What to Tell Your Family About Your Bitcoin (and What Not To)

Think of your Bitcoin plan as two separate layers. The existence layer answers: is there Bitcoin, roughly how much, who helps, and where the instructions live. The access layer answers: what are the keys, where are the backups, and how are they combined.

Your family should have the existence layer today. They should only reach the access layer on your death, and only through a documented, multi-party process. Mixing the two layers is where estates get robbed.

Tell them that Bitcoin exists and forms part of the estate. Tell them roughly what proportion of your net worth it represents, so nobody dismisses it as a hobby. Tell them who your professional contacts are - the solicitor, the accountant, and your custody adviser. Tell them where the executor briefing document is stored and that it must not be opened before death.

That is enough for an executor to open a file, engage the right people, and follow a process. It is not enough for anyone to steal a satoshi.

Never disclose seed words, passphrases, PINs, or the physical location of hardware devices and metal backups. Never confirm exact balances at family gatherings. Never store key material in shared cloud storage, an email draft, a password manager the family already accesses, or a photo on your phone.

And never put any of it in the will. A will becomes a public document once probate is granted. A seed phrase in a will is a seed phrase in a public record.

The uncomfortable truth about disclosure is that it creates a coercion risk for you while you are alive. Someone who knows you hold a large amount of Bitcoin and knows you can move it alone is a reason for a home invasion. This is not theoretical - wrench attacks are the most common way large holders lose funds.

Multisignature custody dissolves this problem. If you genuinely cannot move the funds without a second party who is not in the room, coercion stops working, and you can be honest with your family without painting a target on your door.

Have the conversation once, deliberately, with the people who will actually be involved: your executor, your spouse, and any adult children who will inherit. Write down what you told them. Put the same information in the executor briefing so nobody has to rely on memory years later.

Then repeat it annually. Custody changes, people move house, and a briefing written five years ago and never revisited is usually wrong in at least one detail that matters.