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Inheriting stock means receiving a brokerage account number. Inheriting real estate means receiving a deed. Inheriting Bitcoin is different — and that difference is the reason this guide exists.
When someone leaves you Bitcoin, they are not leaving you a balance in a system that can verify your identity and transfer ownership on your behalf. They are leaving you access to a cryptographic key that controls an entry on a global ledger. No bank holds that key. No institution can recover it. If the key is lost — or transferred to the wrong hands — the Bitcoin is gone. Permanently.
This is not meant to frighten you. It is meant to orient you. The families who handle Bitcoin inheritance well are the ones who understood, in advance, that the rules are fundamentally different. The families who handle it poorly are often the ones who assumed the process would resemble inheriting any other financial asset.
This series is written for you: the adult child, grandchild, or spouse who will one day receive — or has already received — a Bitcoin inheritance. You do not need to be a technologist. You do not need to believe in Bitcoin as an investment. You simply need to understand how it works well enough to protect what you've been given.
The Heir Education Series
Each article in this series addresses a specific, practical aspect of Bitcoin inheritance. Start at the beginning if you're new to all of this. Jump to a specific topic if you're already working through an active inheritance.
Eight Things Every Heir Should Know
Before you read anything else, anchor yourself with these eight facts. They are not negotiable, and they are the foundation of everything else in this series.
| # | What Every Heir Should Know |
|---|---|
| 1 | Bitcoin is a bearer asset. Whoever holds the private key controls the Bitcoin. There is no institution standing behind it to verify your identity or protect your claim. |
| 2 | The seed phrase is the master key. A 12- or 24-word phrase controls everything. It must never be entered into a website, app, or device you did not purchase yourself from an authorized source. |
| 3 | Lost keys mean lost Bitcoin — forever. There is no customer support line. No password reset. No account recovery. If the keys are not found, the Bitcoin cannot be accessed. |
| 4 | A Letter of Instruction from your grantor is the most important document in a Bitcoin inheritance. It should specify where the hardware is stored, how to access it, and who to call. |
| 5 | Do not move the Bitcoin until you have consulted an estate attorney and a Bitcoin-literate CPA. Premature transactions can create serious legal and tax complications. |
| 6 | The stepped-up cost basis rules that apply to stocks and real estate may also apply to inherited Bitcoin. This is a significant tax consideration. Get qualified advice before selling. |
| 7 | Scammers target Bitcoin heirs. The publication of an obituary can trigger outreach from fake recovery services, fake estate attorneys, and fake exchanges. Treat all unsolicited contact with extreme suspicion. |
| 8 | Patience is protective. The Bitcoin is not going anywhere as long as no one touches the keys. The greatest risks in Bitcoin inheritance come from moving too quickly, not too slowly. |
Key Terminology
Bitcoin has its own vocabulary. These five terms will appear throughout this series, and understanding them now will make everything else clearer.
Does your family have a Bitcoin Letter of Instruction?
The single most important thing a Bitcoin holder can do for their heirs is document how to find, access, and properly transfer their Bitcoin. Our Letter of Instruction Builder walks through every critical field.
Build a Letter of Instruction →How to Use This Series
If you are preparing in advance — perhaps your parent or spouse has told you about their Bitcoin and you want to understand it before the need arises — read the series from the beginning. Start with Article 1 to build a foundation, then work through custody, the first 30 days, and scam protection in order.
If you are in the middle of an active inheritance, go directly to the first 30 days guide and read it carefully before taking any action. Then contact an estate attorney. The most important thing you can do in the first 72 hours is secure the hardware and do nothing else.
Throughout this series, we have tried to write the way a thoughtful, experienced person would explain this to someone they care about — not talking down, not using unnecessary jargon, not pretending the stakes are smaller than they are. Bitcoin inheritance is genuinely complicated, and you deserve a straight account of it.
How Bitcoin Inheritance Differs From Other Assets
If you've inherited a house, a brokerage account, or a life insurance payout, you have some intuition about how inheritance works. Bitcoin breaks most of that intuition. Understanding where the differences lie is the most important piece of orientation we can offer.
| Asset | What You Inherit | What Happens If Records Are Lost | Institutions That Can Help |
|---|---|---|---|
| Brokerage Account | A claim against the broker's balance sheet | Broker can verify identity and reconstruct records | Broker, SIPC, FINRA, estate attorney |
| Real Estate | A deed recorded in a county registry | County records office can reconstitute the chain of title | County recorder, title company, attorney |
| Bank Account | A deposit claim against the bank (FDIC insured) | Bank maintains records; FDIC covers insolvency | Bank, FDIC, estate attorney |
| Exchange-Held Bitcoin | A claim against the exchange's balance sheet | Exchange can verify identity and process estate claim | Exchange estate team, attorney |
| Self-Custodied Bitcoin | Direct control of the cryptographic key itself | If keys are lost: permanent loss. No recovery possible. | None that can restore access |
Self-custodied Bitcoin has no institution behind it. The blockchain maintains a permanent record of the Bitcoin's existence, but it cannot verify your identity or override the key requirement. The Bitcoin will sit on the blockchain indefinitely — visibly, on a public ledger, inaccessible — if the keys are never found.
Common Failure Modes in Bitcoin Inheritance
Understanding how Bitcoin inheritance goes wrong is as valuable as understanding how to do it right. These are the most common patterns we see:
- The holder never told anyone. The most common failure: the holder considered Bitcoin a private matter and died without leaving any documentation. Heirs discover hardware wallets, strange phrases, or exchange accounts — but have no context for what they're looking at or how to proceed.
- The Letter of Instruction was never written. The holder intended to document everything, but never did. The estate contains a hardware wallet and no record of the PIN. Or a seed phrase and no indication of which wallet it corresponds to. Or exchange accounts with no login credentials.
- The seed phrase was stored insecurely. Seed phrases stored in email drafts, photos in cloud accounts, notes apps, or generic "personal documents" folders are exposed to anyone who gains access to those accounts — including the estate administrator, family members, or hackers who breach a deceased person's accounts.
- An heir moved funds prematurely. An heir who gains access to a wallet and immediately transfers the Bitcoin — perhaps to sell it quickly — may create serious tax complications, legal questions about estate distribution, and in some cases may have acted outside their legal authority before the estate is settled.
- A scammer intervened. After an obituary is published, Bitcoin inheritance scammers sometimes contact heirs posing as recovery services, estate attorneys, or Bitcoin exchanges. Heirs who are unfamiliar with Bitcoin and emotionally vulnerable are prime targets. The seed phrase, once shared, cannot be taken back.
- The multisig setup was not documented. A holder who used a sophisticated 2-of-3 multisig arrangement but left no description of the configuration, the wallet coordinator software, or the location of each key has effectively created an inaccessible position — even if heirs eventually find one or two of the keys.
- The passphrase was not preserved. Some holders add an extra passphrase ("25th word") to their seed phrase for additional security. If this passphrase is not documented, the seed phrase alone produces an empty wallet — and the Bitcoin in the passphrase-protected wallet is permanently inaccessible.
Questions to Ask the Bitcoin Holder While You Still Can
If your parent, spouse, or other family member holds significant Bitcoin and is still alive, this is the time to ask these questions. They may feel uncomfortable — but far less uncomfortable than discovering, during an active estate settlement, that no one knows where anything is.
- Do you hold Bitcoin on an exchange, a hardware wallet, or both? Which ones?
- Have you written a Letter of Instruction? Where is it stored?
- Is there a seed phrase? Where is it physically stored?
- Is there a passphrase (sometimes called a "25th word") on top of the seed phrase?
- Is the Bitcoin held in any kind of multisig arrangement? Who are the other keyholders?
- Do you use any collaborative custody service (Unchained, Casa, etc.)? What is the account information?
- Have you included specific instructions in your trust or will about the Bitcoin?
- Is there a Bitcoin-knowledgeable attorney or adviser we should contact if something happens to you?
- Are there multiple wallets or exchange accounts, or is it all in one place?
- Is there a PIN for the hardware wallet? Is it written down somewhere? Where?
You do not need to ask all of these at once. Some families have this conversation as part of broader estate planning discussions. Others schedule a dedicated session. The point is not to learn the seed phrase — it's to know that it exists, that it's documented, and that someone you trust knows where to find it when needed.
What Makes a Good Letter of Instruction
The Letter of Instruction is the single most important document in a Bitcoin estate. Unlike a will or trust — which are legal documents filed with the court and seen by attorneys, trustees, and potentially the probate court — the Letter of Instruction is a private operational document kept in a secure physical location alongside (or near) the Bitcoin custody hardware.
A complete Letter of Instruction for a Bitcoin holder should include:
- All custody positions: A list of all hardware wallets, exchange accounts, and other Bitcoin holdings with enough identifying information for a successor to locate each one
- Hardware wallet instructions: The device type, PIN procedure (not the PIN itself — that should be stored separately), and which seed phrase corresponds to which device
- Seed phrase storage locations: Not the seed phrase itself, but instructions for where it is stored — "In the Sentry safe in the master closet, second shelf, behind the blue envelope"
- Passphrase instructions: If a passphrase is used, the Letter should indicate this and describe where the passphrase is stored separately
- Multisig configuration: The full description of any multisig setup — M-of-N configuration, where each key is stored, who holds each key, the wallet coordinator software, and where the wallet descriptor file is backed up
- Exchange account details: Account usernames, email addresses on file, and 2FA backup codes (if stored securely)
- Professional contacts: The name and contact information of the estate attorney, CPA, and any Bitcoin-knowledgeable adviser the holder worked with
- First-step instructions: A brief instruction to the heir about who to contact first and what not to do (specifically: do not move Bitcoin before consulting the attorney)
The Letter of Instruction should be reviewed and updated annually, or whenever custody arrangements change. A stale Letter of Instruction is better than none — but one that reflects the actual current state of the holdings is far more valuable.
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Explore Bitcoin Mining Tax Strategies →Frequently Asked Questions
What should I do first when I inherit Bitcoin?
Secure all physical items — hardware wallets, seed phrase backups, notebooks — in a safe or lockbox. Do not plug in any hardware device. Do not attempt any transactions. Contact an estate attorney within the first 72 hours. The Bitcoin is safe as long as the keys are not compromised. The biggest risks come from acting too quickly, not too slowly.
What is a seed phrase and why is it so important for Bitcoin heirs?
A seed phrase is a sequence of 12 or 24 common English words that functions as the master key to a Bitcoin wallet. Anyone who has this phrase can access all the Bitcoin from any device. It must never be entered into any website or app. Scammers specifically target heirs asking for seed phrases. Legitimate professionals never need your seed phrase.
Does inherited Bitcoin get a stepped-up cost basis?
Under current US tax law (IRC §1014), assets inherited at death generally receive a stepped-up cost basis to the fair market value at the date of the decedent's death. Bitcoin is classified as property by the IRS, so this step-up should apply. An heir who inherits Bitcoin originally purchased at $1,000/BTC and sells at $200,000/BTC would owe capital gains only on appreciation since the date of death. Consult a CPA before selling.
What is a Bitcoin Letter of Instruction?
A Letter of Instruction is a private operational document — kept separate from legal estate documents — that describes where hardware wallets are stored, how to access exchange accounts, the structure of any multisig arrangement, seed phrase storage locations, and who to contact for professional assistance. It is the single most important document a Bitcoin holder can prepare for their heirs.
How can I tell if a Bitcoin recovery or inheritance service is a scam?
Warning signs: unsolicited contact after an obituary is published; promises to recover Bitcoin without a seed phrase; requests for upfront fees; requests to enter your seed phrase online; impersonation of an estate attorney or exchange; urgent pressure to act. Legitimate professionals do not cold-contact heirs, never ask for seed phrases, and never demand fees before access.