Bitcoin Inheritance: A Spare Key Is Not a Deed
Brian Cubellis | Chief Strategy Officer
Bitcoin inheritance is a two-part problem: key management, so the asset is not lost at death, and legal title transfer, so it passes to the intended beneficiary rather than becoming a dispute. Most inheritance plans solve only the first part; a spare key is not a deed. Onramp's report The Legacy Layer maps the failure modes and what a complete plan looks like, from transfer-on-death titling to trust structures.
Bitcoin inheritance is a two-part problem. The first part is key management, so the asset is not lost when the owner dies. The second is legal title transfer, so the bitcoin passes to the intended beneficiary instead of becoming a dispute. Most inheritance plans in the market today solve only the first part. Even with a perfect plan for handing over the keys, the keys do not give a beneficiary the deed. This is the framework at the center of Onramp's report The Legacy Layer: Bitcoin IRAs & Estate Planning, and it explains why so many careful holders still leave their families with a position they cannot reach, or cannot legally claim.
Owning bitcoin correctly for thirty years and having it die with you
The line in the report worth repeating is that owning bitcoin correctly for thirty years and having it die with you is the same outcome as never owning it, or losing it along the way. That is the scale of the problem, and it is a problem the estate planning profession recognizes immediately, because every practitioner who has handled one of these estates has seen the same failures.
Treasure-map instructions are lost, or found by the wrong people. Timelocks strand assets at exactly the moment an estate needs liquidity. Executors cannot locate holdings they were never told existed. Heirs inherit a hardware device having never signed a transaction in their lives. And self-custodied and collaboratively custodied bitcoin are probate assets, so keys written into wills become public record, which is a specific problem for holders whose whole security model depends on privacy.
For retirement accounts the problem takes a different shape. The SECURE Act's ten-year rule leaves beneficiaries of a single-custodian IRA inheriting single-point-of-failure risk that they now have to solve on a clock. We cover that in detail in What Happens to a Bitcoin IRA When You Die.
The four-box map
Lay the two problems against each other and every inheritance plan lands in one of four boxes.
- Keys present. Title present: Inheritance. The complete plan: title passes and access follows.; Title absent: Keys without title. A spare key is not a deed. Access with no legal standing.
- Keys absent. Title present: Title without keys. A probate asset heirs cannot reach, on the public record.; Title absent: Neither solved. The position is lost.
Most solutions in the market solve the top row's right-hand box only. They hand a beneficiary a way in, and leave the question of who legally owns what they are walking into to a probate court.
Where the current market lands
Each existing approach has something to recommend it. Bitcoin ETF shares transfer cleanly through ordinary beneficiary designations, and for many estates that is adequate. Most single-custodian platforms offer no formal inheritance mechanism at all, though River deserves credit for offering transfer-on-death titling. Collaborative custody arrangements vary by provider and typically leave the family holding hardware.
The gap sits with a particular investor: one who wants actual bitcoin rather than fund shares, values privacy, and wants an estate plan with no single point of failure. For that person, the choice has historically been between a technical plan with no legal backbone and a legal plan that reintroduced one counterparty.
Inheritance as a property of the account
The report's answer is that a beneficiary should inherit bitcoin the way they inherit a brokerage account, through a legal mechanism and not a technical one. At Onramp, every Core account includes a segregated multi-institution vault titled in the client's name or their trust's name. The client designates primary and contingent beneficiaries and signs a Transfer on Death agreement, which makes the account a non-probate asset. Title passes without probate, intestacy statutes or public record.
Three things follow. Beneficiaries need no technical expertise, seed phrases or hardware. Title transfers privately. And basis steps up at date-of-death value, because the bitcoin sits outside a retirement wrapper.
The reason this works is the custody underneath it. Because no key material ever sat with the account holder, there is no seed phrase for an heir to find, no device to locate, and no single person whose death or incapacity breaks the chain. The 2-of-3 quorum of independent institutions outlives the account holder. That replaces a treasure map with a legal relationship, with a Lloyd's of London insurance policy standing behind the custody operation as a backstop.
For larger estates the same account can be titled to a revocable trust, and above that to a perpetual dynasty structure, without the bitcoin moving or a new counterparty entering. That progression is the subject of What Is a Bitcoin Dynasty Trust. The full argument, including the failure record that makes architecture the primary variable, is in The Legacy Layer: Bitcoin IRAs & Estate Planning.
Frequently asked questions
How do I leave bitcoin to my heirs?
A complete bitcoin inheritance plan solves two problems: key management, so the asset is not lost, and legal title transfer, so it passes to the intended beneficiary. Options range from beneficiary designations on ETF shares to transfer-on-death titling on a custodied account to trust structures.
Does bitcoin go through probate?
Self-custodied and collaboratively custodied bitcoin are generally probate assets, and any keys written into a will become public record. A custodied account with a Transfer on Death agreement, or one titled to a trust, can pass outside probate.
What is a transfer-on-death agreement for bitcoin?
A Transfer on Death (TOD) agreement names primary and contingent beneficiaries on a custodied bitcoin account, making it a non-probate asset so title passes directly at death without a court process or public filing.
Is giving my family my seed phrase an inheritance plan?
It solves access, not ownership. A seed phrase gives a person the ability to move bitcoin but no legal standing to own it, which is why the report describes a spare key as not a deed.
Related reading
- What Happens to a Bitcoin IRA When You Die
- What Is a Bitcoin Dynasty Trust, and Who Needs One
- The Four Ways to Hold Bitcoin in an IRA
- Full report: The Legacy Layer: Bitcoin IRAs & Estate Planning
This article is research and analysis, not a recommendation to adopt any legal or tax structure. Onramp is not a law firm, an accounting firm or a tax practice, and nothing here is legal, tax, accounting or investment advice. Estate outcomes depend on individual circumstances and state law. Custody descriptions are simplified for illustration and governed in full by the applicable account agreements. References to third parties are for context only and imply no endorsement. Consult your own attorney, accountant and financial advisor before acting. Bitcoin is a volatile asset and its price can fall as well as rise.