Crypto Inheritance: What Actually Happens to Your Bitcoin When You Die
6 min read
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6 min read
If you die tomorrow, your bank account gets frozen, then released to your heirs once they show the right paperwork. Indonesian banks and stock brokers have done this for decades. Your crypto wallet does not work that way. If nobody else knows how to get into it, what you own does not pass to anyone. It just sits on the blockchain forever, visible to everyone, spendable by no one.
That is not a hypothetical. Researchers estimate that somewhere between 2.3 million and 3.79 million bitcoin, roughly 11% to 18% of the 21 million coins that will ever exist, are already permanently lost (Chainalysis estimates, as reported by BitGo and NewsBTC, retrieved 12 August 2026). At bitcoin's price of about $64,200 on 12 August 2026, that range is worth roughly $148 billion to $243 billion. Not all of that is inheritance related. Some of it is forgotten passwords and discarded hard drives. But a meaningful and growing share of it is people who died without telling anyone how to access what they owned.
A bank has your name, your KTP number and a legal obligation to hand your balance to your heirs once they prove who they are. A crypto wallet has none of that. Ownership of crypto is defined entirely by who controls the private key, the string of characters (usually shown as a 12 or 24 word seed phrase) that lets you move the coins. Whoever has that key owns the crypto, full stop. There is no company to call, no "forgot access" button and no ID check that overrides it. If the key is gone, so is the crypto.
This splits crypto inheritance into two very different problems depending on where your coins actually sit.
If you hold crypto on a custodial platform like Indodax rather than in your own wallet, the exchange controls the private keys on your behalf, and that gives your heirs somewhere to go. Indodax's own help center describes a heir claim procedure: a family member contacts support@indodax.com, and the team sends back a data form that has to be completed before the account can be released (Indodax Help Center, "What is the procedure for claiming heirs on account owners who have passed away?"). It is a manual, human-reviewed process, not an automatic transfer, so it takes time. But it exists, which is more than a self-custody wallet offers.
Self-custody, holding your own private key in a hardware wallet or a written seed phrase instead of on an exchange, is usually the safer choice against hacks and exchange failures. It is the worse choice for inheritance, unless you plan for it. Nobody can call a support line and prove they are your heir to a piece of paper or a hardware device. If you never told anyone where your seed phrase is or how to use it, that crypto is gone the moment you are, not eventually reachable through a legal process, just gone.
Indonesia has no law written specifically for crypto inheritance. Legal researchers writing in academic journals, including a 2026 analysis in Lex Positivis (Universitas Lambung Mangkurat) and one in Khazanah Multidisiplin (UIN Sunan Gunung Djati), argue that crypto can be classified under Pasal 499, 503 and 504 of the Civil Code (KUHPerdata) as an intangible movable asset, the same broad category covering things like receivables or intellectual property rights, which under general inheritance principles can pass to heirs. That is a reasonable legal argument built on a 19th century code, not a rule written with blockchain assets in mind, and both papers describe the result as a genuine gap (kekosongan hukum) rather than a settled answer. In practice, this means an Indonesian court would very likely recognize crypto as inheritable property in principle. It says nothing about how your heirs would actually get the private key if you never told them where it was.
| Where the crypto sits | What happens after the owner dies | Who can act |
|---|---|---|
| Bank account or IDX brokerage | Frozen, then released through the standard heir-claim process once documents are verified | Bank, broker or KSEI, following established procedure |
| Custodial exchange (e.g. Indodax) | Account can be claimed through a manual heir-claim process | Exchange support team, after a data form and documents are submitted |
| Self-custody wallet, access shared in advance | Heir uses the seed phrase or key as instructed | Whoever was told where it is and how to use it |
| Self-custody wallet, access never shared | Permanently inaccessible | Nobody |
Do not write your seed phrase directly into your will. A will typically becomes part of the public probate record, and estate-planning guidance is consistent on this point: anything written into it can eventually be read by people who are not your heirs (NY Estate Plan, "Don't Lose the Keys"; FindLaw, "Can You Inherit Crypto?"). List what crypto you own and who should get it in the will itself. Keep the actual seed phrase or key in a separate, secure place, and tell your executor or a trusted person where that place is and how to reach it.
You do not need a lawyer to take the first step. Start by making sure your own Holdings page in NetWort actually reflects what you own across every exchange and wallet, custodial and self-custody alike, so there is one accurate list instead of scattered memory. Then decide who should have access to that list, and where you will store the actual keys so that person can find them if they ever need to. You can track bitcoin's price and history on its asset page while you are there, but the list itself is the part that actually protects your heirs.