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Strategy

Bitcoin estate planning.
How to pass Bitcoin without losing it.

Bitcoin estate planning is fundamentally different from traditional asset planning. A lost seed phraseseed phraseThink of it as the combination to a bank vault that exists only in your head: 12 or 24 specific words in a specific order. Anyone who copies the combination opens the vault. The bank has no copy. There is no locksmith, no reset, no customer service. Lose the words, lose the Bitcoin.Full definition means lost Bitcoin forever. Heirs need access; you need security. This page walks through how to structure your Bitcoin inheritance so heirs can recover the coins without compromising your control today.

READING TIME: 10 MIN

Tax treatment in this page (stepped-up basisstepped-up basisA tax break for heirs. When you inherit a stock, house, or Bitcoin, the IRS pretends you bought it at its market value on the date the previous owner died. All the growth that happened during their lifetime escapes tax forever.Full definition, IRAIndividual Retirement Account (IRA)A personal retirement savings account with tax advantages. Two main types: Traditional (tax now, pay later) and Roth (pay now, tax-free forever).Full definition inheritance) reflects US federal rules. The custody mechanics (multisig, seed-phrase storage) apply globally.
THE SHORT VERSION

Traditional estate planning assumes your bank cooperates with your heirs. Bitcoin assumes the opposite: only the seed phrase grants access. Heirs need the seed phrase, but if they have it now you have given up control. The solution is a multisig wallet where any 2 of 3 keys can move funds, paired with an inheritance letter that explains the mechanics in plain English. Self-custodied Bitcoin also receives stepped-up basis at death, making it potentially the most tax-efficient asset class to pass to heirs.

Why it is different The four methods What not to do Tax treatment for heirs Bitcoin in an IRA

Section 1 · Why Bitcoin estate planning is different

TRADITIONAL ASSETS
  • A bank, brokerage, or insurer holds the asset.
  • BeneficiarybeneficiaryThe person or entity you name to receive an account or insurance policy when you die. designations or probateprobateThe court-supervised process of validating a will, paying debts, and distributing assets after death. Slow, costly, and public.Full definition direct the transfer to heirs.
  • The institution cooperates because law requires it.
  • Heirs need a death certificate and proof of identity, not your password.
SELF-CUSTODIED BITCOIN
  • No institution holds the asset.
  • No company can be compelled to transfer it to heirs.
  • The seed phrase is the only path to the Bitcoin.
  • If heirs lack the seed phrase, the Bitcoin is permanently inaccessible.
  • If heirs have the seed phrase now, they have full access immediately.
THE CORE TENSION

Security requires secrecy. Inheritance requires disclosure. These two requirements conflict directly. Every estate planning method below is a different way to resolve this conflict.

Section 2 · The four methods

METHOD 1 · DOCUMENTED SEED-PHRASE STORAGE

Write the seed phrase on metal (not paper; fire and water destroy paper backups). Store it somewhere your executor knows about but your heirs do not learn until you die.

Locations to consider:

  • Safe deposit box (with executor as deputy or co-signer)
  • Home safe with combination given only to executor
  • With an estate attorney in a sealed envelope

Risk: the person who knows the location is trusted with everything. Choose carefully. A dishonest executor can move the Bitcoin to themselves with no recourse.

METHOD 2 · MULTI-SIGNATURE (MULTISIG)

A multisig wallet requires multiple seed phrases to authorize a transaction. The standard inheritance structure is 2-of-3: three keys exist, any two can move the Bitcoin.

  • You hold key 1.
  • A trusted family member holds key 2.
  • An estate attorney or institution holds key 3.

During your life: you control key 1 and need one other to transact. No single person has full access.

At death: heirs with key 2 plus the attorney with key 3 can access funds.

Setup options: Unchained (collaborative custody, US-based), Casa (concierge service), Sparrow Wallet (self-managed, open source), Bitkey (Block Inc., 2-of-3 with hardware + phone + recovery service) ×DON'T TRUST, VERIFYClaim: Major collaborative-custody multisig services as of 2026.Verify at: unchained.com ↗ · keys.casa ↗ · sparrowwallet.com ↗ · bitkey.world ↗Service availability and pricing change. Sparrow is open-source and free; Unchained and Casa charge subscription fees; Bitkey uses a hardware-plus-app model..

METHOD 3 · TIME-LOCKED SEED DISCLOSURE

Store the seed phrase with a service that releases it after a confirmed death or after a period of inactivity from you. As of 2026, no perfect commercial service exists for this.

Dead-man's-switch approach: set up an encrypted email or document that is automatically released if you do not check in within a defined period (services like Dead Man's Switch, Letter to a Friend, or self-hosted alternatives). Requires disciplined maintenance. Single point of failure if the service shuts down or your check-in routine breaks.

METHOD 4 · INHERITANCE LETTER WITH INSTRUCTIONS

A "letter of instruction" stored with your will explains:

  • What Bitcoin you hold (approximate amount)
  • Where the hardware wallet is physically located
  • How to access the seed phrase (which method above you used)
  • Step-by-step instructions for your specific hardware-wallet model
  • Who to contact for technical help (a trusted Bitcoiner friend, an estate attorney with cryptocurrency experience)
  • Warning: do not share the seed phrase by phone or digital channel under any circumstances, no matter what someone claims

This is not a replacement for methods 1-3. It supplements them with operational instructions for heirs who may have never used a hardware wallet.

Section 3 · What not to do

  • Never store the seed phrase digitally. Not in email, iCloud, Dropbox, Google Drive, notes apps, or password managers. Cloud storage is a target.
  • Never take a photo of the seed phrase. Phone backups sync photos to cloud automatically.
  • Never share the seed phrase before death unless using multisig (where partial keys are explicit by design).
  • Never assume your executor knows what Bitcoin is. Most executors have never used a hardware wallet. The instruction letter exists for them.
  • Never leave Bitcoin on an exchange as an estate plan. Exchanges can freeze accounts during estate processes; some refuse to release without specific legal documentation that varies by state.

Section 4 · Tax treatment for heirs

Bitcoin held in self-custody at death receives a stepped-up cost basiscost basisWhat you originally paid for an asset. Used to calculate how much profit (or loss) you made when you sell.Full definition equal to its fair market value on the date of death ×DON'T TRUST, VERIFYClaim: Inherited cryptocurrency receives stepped-up basis under US federal tax rules.Verify at: IRS FAQ on virtual currency ↗ · IRS Pub 559: Survivors, Executors, and Administrators ↗Inherited property generally takes a stepped-up basis under IRC Section 1014; the IRS treats virtual currency as property, so the same rule applies..

EXAMPLE
  • You bought 1 BTCBitcoin (BTC)The ticker symbol for Bitcoin, used on exchanges and in price quotes.Full definition for $5,000.
  • At your death, that BTC is worth $200,000.
  • Heir's basis is $200,000 (the date-of-death value), not $5,000.
  • Heir sells immediately at $200,000: zero capital gainscapital gainsThe profit from selling an asset for more than you paid for it. Taxed differently depending on how long you held the asset. tax.
  • Heir sells later at $250,000: capital gains on only the $50,000 appreciation since inheritance.

For appreciated Bitcoin, this stepped-up basis can make self-custodied Bitcoin one of the most tax-efficient assets to pass to heirs. The opposite is also true: if Bitcoin has fallen in value at death, the stepped-down basis means heirs cannot use the loss.

Section 5 · Bitcoin in an IRA: different rules

Bitcoin held in a Bitcoin ETFExchange-Traded Fund (ETF)A basket of investments (stocks, bonds, or Bitcoin) that trades on a stock exchange like a single share. (IBIT, FBTC, etc.) inside a Roth IRA, or in a self-directed Bitcoin IRA, follows the rules for inherited retirement accounts. It does NOT receive stepped-up basis.

Inherited IRA rules (post-SECURE Act):

  • Most non-spouse beneficiaries must withdraw the entire account within 10 years ×DON'T TRUST, VERIFYClaim: Most non-spouse IRA beneficiaries must drain inherited accounts within 10 years.Verify at: IRS RMD FAQ ↗SECURE Act of 2019 introduced the 10-year rule for most non-spouse beneficiaries. Spouse, minor children, disabled, chronically ill, and not-more-than-10-years-younger beneficiaries are exempted (eligible designated beneficiaries)..
  • Roth IRA distributions remain tax-free; Traditional IRA distributions are taxed as ordinary income to the heir.
  • The "stretch IRA" pre-2020 strategy (taking distributions over the heir's lifetime) is gone for most beneficiaries.

The estate-planning trade-off:

Bitcoin ETF in Roth IRA: Roth tax treatment, no self-custody, no seed phrase, inherited as Roth IRA (still tax-free withdrawals but 10-year drain).
Self-directed IRA with Bitcoin: Traditional or Roth tax treatment available, Bitcoin in custody of a specialized custodian (not true self-custody), higher fees, more complex.
Self-custodied Bitcoin (not in an IRA): No contribution limits, capital gains tax on sale during life, stepped-up basis at death, full sovereignty.

For a long-term holder planning to leave Bitcoin to heirs: self-custodied Bitcoin with stepped-up basis can be more valuable to heirs than Bitcoin in an IRA that generates ordinary income tax (Traditional) or has a 10-year withdrawal mandate (Roth) on death. Run the numbers for your specific situation; the answer depends on your tax bracket, your heir's tax bracket, and the holding period.

RELATED PAGES
Hardware Wallets · the device tier Seed Phrase Rules · storage best practices Custody Levels · from exchange to multisig Wills and Estate Planning · the broader picture Bitcoin Inheritance · legacy planning overview TCJA Sunset · estate-exemption window
Sources & Citations
  1. IRS. Frequently Asked Questions on Virtual Currency Transactions · irs.gov.
  2. IRS Publication 559: Survivors, Executors, and Administrators · irs.gov/publications/p559.
  3. IRS RMDRequired Minimum Distribution (RMD)The minimum amount you must withdraw from Traditional retirement accounts each year starting at age 73.Full definition FAQ (post-SECURE Act inherited-account rules) · irs.gov.
  4. IRC Section 1014 (basis of property acquired from a decedent).
  5. SECURE Act of 2019 (Public Law 116-94) and SECURE 2.0 (Public Law 117-328) · statutory authority for the 10-year rule.
  6. Unchained collaborative custody · unchained.com.
  7. Casa concierge multisig · keys.casa.
  8. Sparrow Wallet (open-source DIY multisig) · sparrowwallet.com.

Last updated 2026-04-25 · Not financial advice. Do your own research.