A Will Needs a Way

Most assets sit inside institutions that respond to legal process. A bank freezes an account, an executor presents documents, and the institution releases the funds. The institution holds capability; the estate supplies authority.

Self-custodied bitcoin has no institution in the middle. The network does not read death certificates. It accepts a transaction if it is validly signed, and it ignores everything else. If nobody can produce those signatures, the bitcoin does not pass to anyone. It simply stays where it is.

That is the property that makes self-custody valuable while you are alive. It is also why an unprepared estate can lose everything without anyone doing anything wrong.

An executor can hold full legal authority and still be unable to move a single satoshi. Equally, a relative who finds a seed phrase in a drawer may be able to move everything, yet have no lawful right to do so. Possession of keys is never proof of entitlement.

A complete plan addresses both. Solicitors and the estate process decide who is entitled. A custody plan prepares the operational path so that the entitled person can actually act, without guesswork and without anyone taking shortcuts.

A will can express your wishes. A custody plan determines whether they can be carried out.

Inheritance is not a single event. It unfolds over time, and each stage asks something different of the people involved.

The people most likely to inherit your bitcoin are often the people least familiar with it. They do not need to become experts. They need to know that the bitcoin exists, roughly what form it takes, where the instructions are, and who they can trust for help.

A calm conversation now is worth more than a perfect document found too late. Walk the people who matter through the outline of the plan. Let them hold the hardware wallet. Explain what a scam would look like, so they recognise one when grief makes them vulnerable.

Bitcoin rarely lives in isolation. There may be exchange accounts, two-factor apps on a phone, a dedicated email address, wallet software on a laptop and device PINs. If the plan depends on a phone nobody can unlock, it is not a plan.

Make an inventory of the surrounding pieces: which accounts exist, which devices matter, and how someone with authority would be pointed toward them. The inventory describes; it does not contain the secrets themselves.

A seed phrase alone is not a complete backup plan. If the wallet uses a BIP39 passphrase, recovering the funded wallet requires the exact seed words and the exact passphrase. A wrong or missing passphrase does not produce an error. It produces a different, valid wallet, usually with no balance. That is how families can conclude there was nothing there.

For multisig, the wallet configuration (sometimes called the descriptor or output descriptor) must survive alongside the devices and seed backups. Without it, holding enough seeds may still not be enough to reconstruct the wallet easily.

Durability matters too: material that survives fire and water, locations someone else can reach, and enough copies to survive loss. Every extra copy adds redundancy and adds exposure. The right number is a deliberate trade-off, not a reflex.

A backup you have never tested is only an assumption.

Test recovery safely: on a hardware wallet or an offline device you trust, verifying that the expected wallet and addresses appear without moving funds just to prove a point. Never type cold seed words into a website, a phone app or any internet-connected computer. Putting a cold seed online breaks that wallet's cold-storage model. Deleting the online copy does not undo the exposure.

Instructions explain what exists, where things are and what to do. Secrets are the seed phrases, private keys and passphrases that can move funds. They belong in different places.

Never put seed phrases, private keys or passphrases in a will, an email, cloud storage, a notes app or a password manager. Wills can become public documents and pass through many hands. Online services can be breached, synced or recovered by people you never intended. Instructions can be widely held; secrets should not be.

Many holders keep bitcoin in more than one capacity: personally, through an SMSF, in a family trust or within a company. On the blockchain these look identical. In an estate they are not.

Each wallet should be operationally distinguished and clearly attributed to its owner, with records that show which coins belong where. Who is entitled to each holding is decided by qualified professionals under the relevant law and trust deeds. Nobody should infer legal entitlement from possession of a device or a seed.

Inheritance planning tempts people to add layers: more keys, more locations, more passphrases. Each layer should answer a specific risk. Layers added for reassurance become failure points for the person who has to unwind them later, alone, under stress.

The best architecture is the simplest one that genuinely covers the risks you face, documented clearly enough that someone other than you can operate it. Sometimes that is multisig. Often it is a well-executed single-signature setup.

You retain the keys. You operate the wallets. You remain in control.

Arise Bitcoin works only on the operational self-custody layer: helping individuals, families and SMSF trustees build arrangements they understand, document, test and can hand on.

Arise does not replace solicitors or accountants and does not administer estates. It does not take custody, and it never holds, requests, accesses or stores keys, seed phrases or passphrases. It does not sign or broadcast transactions. Legal, tax, SMSF, investment and estate-planning advice remains with appropriately licensed professionals.