Why estate planning for crypto is different
Cryptocurrency ownership is non-custodial by design: if you hold the private keys, you control the coins. That means traditional estate paths (a will that hands over a bank account) don’t translate cleanly. What happens to your crypto if heirs don’t know there is a hardware wallet, or if the seed phrase is lost? These are real problems.
Think of a seed phrase like the master key to a safe deposit box. Lose the key, and the box is inaccessible. I’ve been testing hardware wallets since the 2017–2018 cycle, and what I’ve found is that most failures in transfers to heirs are organizational, not technical. Short sentence.
And that’s where planning helps.
Core elements of a crypto estate plan
A robust plan includes both technical steps and legal documentation. At minimum, prepare:
- An inventory of assets (addresses, blockchains, custody locations). Link to supported cryptocurrencies if you need a compatibility check.
- A clear description of the hardware wallet model, firmware version, and any apps required. (Heirs will need this; take a screenshot or record the firmware number and link to firmware updates and verification.)
- The seed phrase strategy (12 vs 24 words, and whether a passphrase is used). See Seed phrase basics.
- A documented recovery test showing you successfully restored the device from the seed phrase. Link: restore and recovery.
- Instructions for tokens and DeFi positions (contract addresses, how to access liquidity, etc.).
Store the non-secret parts of this inventory with your executor. Keep secret material (seed phrase, passphrase) physically secure and separate.
Strategy comparison: single-sig, passphrase, multisig, custodial
Here’s a concise comparison to help decide which approach fits your situation.
| Strategy |
Recovery Ease for Heirs |
Security Against Theft |
Complexity |
Who it’s best for |
| Single-sig (seed phrase only) |
High (if seed is accessible) |
Moderate |
Low |
Small holdings; heirs comfortable with simple restore |
| Single-sig + passphrase |
Low (heirs must know passphrase) |
High |
Low-medium |
High-value holdings for tech-savvy owners (risk: passphrase lost) |
| Multisig (distributed signers) |
Medium (requires coordination) |
Very high |
High |
Large estates; high-security setups; families with access to trusted co-signers |
| Custodial (exchange or trust) |
High |
Variable (depends on custodian) |
Low |
Users who prefer legal simplicity and professional management |
Pros and cons exist for each approach. For example, multisig increases security but you must plan how signers are selected and replaced. See more on multisig setups.
But remember: there is no one-size-fits-all.
How to leave crypto to heirs — step by step
- Inventory everything. List addresses for Bitcoin, Ethereum, Solana, and other chains. Export transaction history for tax purposes. (See tax-export-history.)
- Choose a strategy from the table above and document why you chose it.
- Create and confirm backups. Write the seed phrase on paper, then transfer to a metal backup plate. Test that the seed phrase restores on a spare device or simulator. See backup-metal-slip39.
- Decide on passphrase use. If you use a passphrase (25th word), plan how heirs will learn it — or intentionally do not use it. (More below.)
- Consider a multisig design if holdings are significant. Run a rehearsal restore and sign with the people you designate. See multisig-setup-ledger and multisig-setups.
- Draft legal documents: a will or trust that references the inventory and gives the executor authority over digital assets (without publishing the seed phrase itself). Consult an attorney experienced in digital assets.
- Store materials in at least two secure locations (e.g., home safe and a trusted attorney’s safe deposit box) and ensure the executor knows how to access them.
- Revisit the plan annually or after major moves (new accounts, major firmware upgrades, or token migrations). I revisit mine every six months.
Passphrase (25th word): benefits and risks
A passphrase acts as a 25th word on top of a BIP‑39 seed phrase. It creates an additional private key layer that the hardware wallet never stores. This is powerful for security, because even someone with the seed phrase cannot access funds without the passphrase.
But the catch is simple: if the passphrase is lost or unknown, funds are irrecoverable. I’ve seen users secure their passphrase in a safety deposit box or split it using Shamir/SLIP‑39 shares so heirs can reconstruct it. See shamir and SLIP‑39 guide and passphrase usage risks.
Options to make passphrase use estate-friendly:
- Don’t use a passphrase and rely on physical security + legal controls instead.
- Use a passphrase but record its location in an encrypted vault whose key is given to the executor.
- Use SLIP‑39 to split the passphrase into shares distributed across trusted parties.
Choose with care.
Multisig for inheritance: practical notes
Multisig splits signing power across multiple keys and people. For inheritance, multisig allows you to decentralize access (for instance, 2-of-3 signers could be the owner, a spouse, and a trusted attorney). This reduces single-point-of-failure risk.
That said, multisig adds ongoing operational work: firmware compatibility, third-party wallet support, and key rotation procedures. In my experience, families that plan and rehearse the multisig restore process fare far better than those that do not. Rehearse in a low-value testnet first.
See multisig setups for detailed walkthroughs.
Legal, tax and executor considerations
A will can name the executor, but a trust can provide faster access and avoid probate delays. Questions to resolve with counsel include:
- Who will be the executor or trustee, and do they understand crypto?
- Are there powers of attorney needed for accessing related accounts (exchange, custodial)?
- How will taxes be handled on inherited crypto in your state? (Keep transaction history; see tax-export-history.)
Do not write your seed phrase in the will. Wills become public during probate in many jurisdictions. Instead, reference a separate location for the recovery kit.
And consult an attorney experienced in digital assets.
Common mistakes people make
- Leaving the seed phrase with no context or inventory. Heirs need addresses and steps, not just 24 words.
- Using a passphrase and not recording how heirs should retrieve it.
- Storing backups online or in plain text. Never store seed phrases in cloud storage.
- Forgetting firmware or app requirements that are required to access certain tokens. Record the firmware version and necessary third‑party apps. See firmware updates and verification and third-party compatibility.
But the biggest mistake is assuming heirs will intuitively know what to do. Train them or document the process clearly.
FAQs
Q: Can my heirs recover crypto if the device breaks?
A: Yes, if they have the seed phrase (and passphrase if used). Test a recovery now and record the process. See restore and recovery.
Q: What happens if the hardware wallet company goes bankrupt?
A: Since crypto is non‑custodial, your private keys remain usable with compatible wallets that support the same standards (BIP‑39, derivation paths, etc.). Document compatibility and include links to alternatives. See company bankruptcy and business risk.
Q: Is Bluetooth safe for a hardware wallet?
A: Bluetooth introduces more attack surface than USB or air‑gapped workflows. For estate planning, err on the side of simple, documented restoration paths (wired or air‑gapped). See connections: usb, bluetooth, nfc and air-gapped signing.
Q: Can I leave crypto in a will verbatim?
A: Don’t write the seed phrase into a will. Use legal documents to reference a separate recovery kit location.
Conclusion & next steps
Passing crypto to heirs requires both technical foresight and legal planning. Start by making an inventory, testing recovery, and deciding whether to use a passphrase or multisig. I recommend creating a clear recovery kit (inventory, hardware info, recovery test) and discussing the plan with your executor or a trusted attorney.
Want to learn more? Read our guides on seed phrase basics, backup options with metal plates and SLIP‑39, and practical multisig setups. If you prefer hands-on walkthroughs, check restore and recovery and firmware updates and verification before you finalize any legal documents.
Plan carefully. Test often. And keep your documentation accessible to the right people.
