Can Bitcoin Be Seized? What Creditors and Insolvency Administrators May Do with Crypto Assets

Yes, Bitcoin can be seized. A creditor holding an enforceable title can reach a debtor's crypto assets, and anyone entering personal insolvency has to declare their coins to the insolvency estate. The question that decides everything in practice is a different one: which route the access runs through, and what happens if the debtor claims they can no longer reach their own keys.

Both sides regularly misjudge this situation. Creditors assume crypto assets are out of reach and give up on the attempt from the outset. Debtors assume self-custody is effective protection and then discover that the German Code of Civil Procedure can compel cooperation, with detention if need be. This article sorts out the legal position as it stands in September 2026 and names the points at which it remains open.

Can Bitcoin and other crypto assets be seized at all?

The Code of Civil Procedure contains no separate provision for crypto assets. Crypto assets therefore have to be captured through an existing category, and that happens through Section 857 of the Code of Civil Procedure: the attachment of other property rights, meaning asset positions that are neither a physical object nor a monetary claim and for which the law provides no dedicated route of access.

That classification is no longer theory. The Berlin Higher Regional Court confirmed it at appellate level for the first time in its order of December 6, 2023: crypto assets are attachable as other property rights under Section 857 of the Code of Civil Procedure. The basic question is therefore settled, and arguments that Bitcoin escapes enforcement law because of its technical nature do not hold up in court.

What follows is a distinction you have to keep in mind, because the entire subsequent process turns on it: are the coins held with a service provider, or are they held by the debtor themselves? In the first case there is a third party you can write to. In the second there is nobody but the debtor.

The route via the provider: attaching the payout claim against the third-party debtor

If a trading platform holds the coins for the debtor, the debtor has a claim against the provider for delivery or payout. It is precisely that claim which is attached, and the provider is the third-party debtor, meaning the party that owes the debtor something and on whom the attachment order is served.

The attachment takes effect upon service on that third-party debtor. From that moment the provider may no longer transfer or pay out the affected holdings to the debtor, and if it does so anyway it is liable to the creditor. For the creditor this is the most comfortable case in the whole of crypto enforcement law: no keys are needed, no technical detail is needed, only the right address for service.

In practice, then, success turns on a thoroughly non-legal question, namely whether the provider is reachable within the European Union. A service provider authorised in Germany or in the EU has an address for service, a supervisory framework and an interest in complying with court orders. A platform with no seat and no authorisation within the jurisdiction may well not respond at all, and a German attachment order cannot in fact be enforced against it.

Self-custody: why the bailiff cannot simply open the wallet

If the coins sit in self-custody, meaning in a wallet whose keys the debtor alone controls, the convenient route falls away. There is no third party on whom anything could be served, and there is no technical means of opening a wallet against the holder's will. A bailiff can take a hardware device away during a search, but the device alone moves no coins: without a PIN or recovery words it is a locked object.

The entire access question therefore shifts onto a duty for the debtor to act. At this point the law works not with technical force but with personal pressure: the debtor has to disclose what they hold, and has to cooperate in realising it. If they refuse, coercive measures apply against their person. That self-custody is technically secure therefore changes nothing about the legal outcome, and anyone using it as protection against enforcement merely shifts their problem from their assets to their liberty. Which devices are candidates for custody, and how the approaches differ, is shown in our hardware wallet comparison.

The asset disclosure: where crypto holdings have to be declared

Before anything can be attached, the creditor has to know there is something to attach. For that the law provides the asset disclosure, formerly the sworn affidavit: on the creditor's application, the debtor has to disclose their assets in full to the bailiff, as governed by Section 802c of the Code of Civil Procedure.

Crypto assets have to be stated. Crypto assets are assets, and the duty of disclosure covers all assets, with no exception for digital forms. Concealing them is not a mere administrative offence: the statement is given in lieu of an oath, and a false declaration constitutes a criminal offence. That is the lever which most often works in practice, long before any order is served.

For creditors that still does not mean sitting back is enough. A disclosure containing nothing is at first only an assertion, and establishing indications of your own remains the creditor's task. Bank statements are the most obvious source here, because a transfer to a trading platform shows up there with the recipient's name and thereby identifies the third-party debtor you can write to.

Coercive fine and detention: what the Cologne Higher Regional Court decided on lost credentials

The obvious defence for a debtor is to say they have lost their credentials. The Cologne Higher Regional Court ruled on exactly that on June 26, 2024, and for practical purposes the decision is the most important of recent years: a debtor may not rely on lost credentials in blanket terms. They have to exhaust all reasonable measures to regain access, and they have to set out what they have done to that end.

If they stick to the blanket assertion, the court can impose a coercive fine, meaning a financial sanction to compel an act that cannot be performed by a substitute, and can order coercive detention in the alternative. The basis for that is Section 888 of the Code of Civil Procedure. Not substitutable means nobody else can perform the act on the debtor's behalf, and that applies precisely to entering recovery words.

The consequence is uncomfortably clear. A debtor who can in fact still reach coins and denies it risks detention as a means of compulsion. A debtor who really has lost access bears the burden of making that plausible, and the larger the former holding was, the more closely the court will enquire. Both lead to the same practical advice: anyone caught up in enforcement should be able to evidence the history of their holdings rather than rely on gaps in memory.

Crypto assets in personal insolvency: the insolvency estate and the duty to cooperate

In insolvency proceedings the situation shifts, because there an administrator organises the entire estate and no individual enforcement runs any more. Crypto assets form part of the insolvency estate, meaning the assets all creditors access jointly. The basis is Section 35 of the German Insolvency Code, which covers the debtor's entire assets, and an asset that can be realised falls under it.

The duty to cooperate is spelled out even more clearly in insolvency proceedings than in individual enforcement. The debtor has to provide the administrator with information and cooperate in realisation. In practice it often runs so that the administrator asks them to sell the crypto assets themselves and hand the euro proceeds over to the estate, because that spares the administrator from handling the technical side.

Anyone seeking discharge from residual debt has the strongest reason for openness here. Concealed assets that surface later jeopardise the discharge as a whole, and that costs more than the concealed holding was worth. The notion that a wallet could be smuggled through proceedings is, of all the mistaken assumptions in this field, the most expensive.

What attachment protection means and where it does not apply to crypto assets

German enforcement law contains protected areas. Earned income is exempt from attachment up to certain thresholds, an attachment protection account secures a basic amount per month, and certain household items are left out. Those rules share one purpose: the debtor should be able to live and work despite enforcement.

That protection can barely be transferred to crypto assets. A balance in Bitcoin is not earned income, it does not sit in a payment account, and it serves no household purpose. A crypto position is therefore, as a rule, fully realisable property, comparable to a securities account or a coin collection. Anyone expecting a basic amount to stay protected automatically, because that is how it works with a current account, is mistaken.

One exception deserves attention, because it is often overlooked in advice. If earned income or a social benefit is received as a stablecoin or cryptocurrency, it remains a protected payment in its legal nature, and the protection may continue to apply. That constellation is rare, it is not entirely settled in law, and anyone wanting to rely on it needs legal representation and full evidence of the origin of the funds.

Price swings during realisation: the unresolved valuation problem

One point makes realising crypto assets harder than realising a car or a property: the value changes daily, and considerably. Weeks can pass between the day of attachment, the day of realisation and the day of distribution to creditors, and the amount can shift markedly in that time.

That creates interests which run against each other. The creditor wants to sell quickly to lock in the value achieved. The debtor wants to wait, because a rising price could reduce their residual debt. And the administrator in insolvency proceedings is liable if they diminish the estate through an avoidably poor realisation, which pushes them to act fast, while realising into a falling market can trigger precisely the accusation they are trying to avoid.

There is so far no statutory rule resolving that conflict. Neither for the valuation date nor for the permissible duration of realisation does an express provision for crypto assets exist, and a reform of enforcement law that would change this is not currently in sight. For both sides that means the timing is negotiable, and whoever makes a reasoned proposal on it early shapes the outcome.

When third parties fight over access: divorce, inheritance, estate

Enforcement is not the only case in which a third party has to get at crypto assets. The same basic question of evidence and access arises in the equalisation of accrued gains on divorce and in inheritance, and the answers follow the same logic: whoever cannot evidence the holdings has the weaker position in a dispute, and whoever cannot hand over the keys triggers duties to cooperate and coercive measures.

We have broken this down in detail for divorce, because there the valuation dates of family law come into play on top: crypto assets in the equalisation of accrued gains. In the event of death a different particularity applies, because there the debtor is entirely absent as a source of information, and without provision the holding is lost to the heirs; how to arrange that is set out in our guide on passing crypto assets on.

What you need to prepare as a creditor

In enforcement law the sequence matters more than the choice of argument. At the beginning there is always an enforceable title, meaning a court decision or an equivalent instrument from which the claim can be enforced. Without a title nothing moves, and no provision on crypto assets changes that.

After that comes the fact-finding. Apply for the asset disclosure at the bailiff's office and read the answer against your own records. If you know the debtor's bank statements, look through them for transfers to trading platforms, because such an entry identifies the third-party debtor you have to write to. If the disclosure contains nothing although there are indications, the next step is to follow up with the bailiff.

Why the attachment application has to name the route of access

An application seeking in blanket terms to attach crypto assets does not help the court. Draft it according to the route of access: for holdings on a platform, attach the debtor's claim against that provider for delivery and payout, and name the provider as third-party debtor with a complete address for service. For self-custody, direct the application at the handover of the credentials and at cooperation in the transfer, because there the compulsion attaches to the debtor's person.

Expect longer proceedings in the second variant. The route via a coercive fine and coercive detention in the alternative takes time, it requires evidence that the debtor has access, and in some cases it ends without result, because a genuinely lost key cannot be replaced by any coercive measure. So quantify the effort before you undertake it.

Checking Bitcoin attachment: what to take away

1. First establish where the coins are held. The whole process hangs on it: with a provider authorised in the EU, an attachment order plus service on it as third-party debtor is enough, and from that moment it may no longer pay out to the debtor. With a platform that has no seat and no authorisation within the jurisdiction, the order is in fact unenforceable. How to recognise an authorisation is shown in our overview of regulated crypto exchanges.
2. Document holdings on an ongoing basis, from either role. As a creditor you need indications in order to attach anything at all. As a debtor you need evidence to make credible what you can still reach and what you cannot, because a blanket assertion about lost credentials no longer carries weight under the case law. Export the transaction history regularly; which tools manage that over the long term is set out in our overview of crypto tax tools and portfolio trackers.
3. Do not treat self-custody as protection against enforcement. Technical inaccessibility does not end the legal obligation: the law then reaches for the person, through the duty of disclosure, the asset disclosure in lieu of an oath, a coercive fine and, in the extreme, detention. Choose your custody by security and by everyday accessibility, as described in the hardware wallet comparison, and never in the expectation of locking creditors out.

(As of September 24, 2026. This article is not investment advice. Prices and fee structures change; check the terms with the provider before you buy.)

This article places the legal position in general terms and does not replace legal advice in an individual case. Anyone actually affected should seek advice from a lawyer, because with crypto assets much often turns on the particulars of the case at hand.