Account Freeze After Crypto Withdrawal in Germany? How to Prove Your Source of Funds

Banks in Germany are classified as “obligated entities” under the Anti-Money Laundering Act and are required to meet certain due diligence obligations for every customer and every transaction. Sections 10 et seq. of the GwG require banks to verify the economic origin of assets whenever there is reason for doubt. For crypto withdrawals in the five- to seven-figure range, compliance departments treat that threshold as structurally met: decentralized blockchain transactions do not fit neatly into the conventional documentation framework used by financial institutions.

The key provision here is Section 43 GwG. If there are concrete indications that funds may be connected to a criminal offense, the bank is not merely permitted to hold the transaction — it is legally required to do so and to file a suspicious activity report with the FIU. Even an abstract risk is sufficient to trigger internal review: an unidentified wallet origin, a missing exchange history, or a reference to decentralized protocols (DeFi) can all be enough. The bank is not acting out of personal suspicion toward you; it is fulfilling a statutory obligation. The account will nonetheless be frozen — and as the account holder, you bear the initial burden of demonstrating the lawful origin of your funds.

It is also worth noting that this applies regardless of where you originally acquired or held your crypto assets. Funds arriving from foreign exchanges or wallets set up while living outside Germany are subject to exactly the same scrutiny as domestic transactions — and in practice, international transaction histories are among the most common documentation gaps compliance departments encounter.

The situation is further complicated by Section 47 GwG, which prohibits the bank from informing you that a report has been filed. You will often learn of the freeze without being told why. At the same time, Section 46 GwG prevents the transaction from being processed until the matter is resolved.

Since Germany reformed its money laundering statute in 2021, Section 261 StGB no longer applies only to proceeds from a defined list of predicate offenses — it now covers proceeds from any unlawful act. This significantly increased the legal risk for crypto holders. As long as the lawful origin of crypto assets is not thoroughly documented, the mere fact that funds passed through mixers, privacy coins, or exchanges that no longer exist can be enough to establish an initial suspicion of money laundering. An investigation can be opened on the basis of reasonable suspicion alone — proof of an underlying predicate offense is not required.

Particularly significant is the concept of negligent money laundering under Section 261(6) StGB. Anyone who fails to recognize the potentially unlawful origin of funds due to a lack of reasonable care — or deliberately avoids doing so — may face criminal liability. For individuals who acquired cryptocurrency between 2013 and 2017 and held it without professional documentation, a failure to account for their own transaction history can be interpreted as negligent. Incomplete or contradictory records make matters considerably worse: they generate doubt where none should exist. Once a bank files a suspicious activity report, the public prosecutor’s office may open a criminal investigation — even without concrete evidence of an underlying offense.

Banks will not accept vague declarations or simple screenshots from a crypto app as proof of source of funds. What is required is a structured, complete, and traceable record of the entire transaction chain — from the original fiat deposit on a crypto exchange through to the current withdrawal. Compliance departments typically look for documentation across four categories.

Purchase records and bank statements: Account statements or transfer receipts showing that the original investment came from taxed funds. If these records no longer exist because the investment was made through an exchange that has since closed, alternative evidence must be provided — such as tax assessment notices from the year of purchase or a statement explaining the income situation at that time. Note that foreign tax records — for example, a capital gains declaration filed in the US or UK — do not satisfy German banking compliance requirements. The two standards are separate, and what satisfies a foreign tax authority will not necessarily satisfy a German bank’s compliance department.

Exchange histories and trading logs: Complete transaction exports from all crypto exchanges used (Coinbase, Kraken, Binance, etc.), preferably in CSV format and accompanied by a clear summary of trading activity. Tax software such as CoinTracking or Koinly can help organize the data — but it is not a substitute for legal preparation tailored to banking requirements.

Comprehensive on-chain analysis: Using professional blockchain forensics tools, wallet addresses, transaction pathways, and any connections to high-risk sources (darknet marketplaces, sanctioned addresses) can be examined and documented. This on-chain analysis provides the bank with objective confirmation that no contact with illicit sources exists — including in complex DeFi transaction chains.

Attorney-prepared cover letters: Legally structured documentation submitted by a lawyer carries considerably more weight with compliance departments than self-prepared records. It signals that the source of funds has been professionally reviewed and organized for submission to a financial institution.

Many people find themselves in the difficult position where their tax advisor correctly declared their crypto gains for tax purposes — but the documentation of the source of funds falls short of what a bank’s compliance department requires. The two sets of requirements are related but follow different standards: what satisfies the tax authorities is frequently not enough for a bank.

If a tax advisor certifies the origin of crypto assets for a tax return but fails to account for the documentation requirements of financial institutions, and an account freeze results, a liability claim may arise. The applicable legal basis is Section 675 of the German Civil Code (BGB), read in conjunction with the professional duties set out under Sections 1 et seq. of the German Tax Advisory Act (StBerG). A claim requires that the advisor had a relevant duty of care, that the duty was breached, and that the client suffered a demonstrable loss as a result. Losses may include legal fees incurred to unfreeze the account, lost interest, or exchange rate losses resulting from a forced holding period. Whether and to what extent such claims are enforceable depends on the specific mandate and the available documentation. An early legal review of potential recourse claims is strongly recommended.

When an account has been frozen, the most important factor is structured, prompt action. Approaching the bank’s compliance department without legal guidance often results in incomplete or ambiguous responses that intensify suspicion rather than dispel it. At Schlun & Elseven, we take over all communication with the bank and coordinate the submission of the required documentation.

The first step is to assess your situation: Has a suspicious activity report already been filed under Section 43 GwG? Has the bank set a deadline? Is there a risk of account termination? On that basis, we prepare a complete source of funds documentation using blockchain forensics and structure it in the format banks require. Documents submitted by a lawyer carry significantly greater weight with compliance departments because they demonstrate that the source of funds has been professionally examined and that legal responsibility has been assumed. If the bank nevertheless fails to act, or terminates the account without justification, we will immediately explore interim legal relief — including injunctive proceedings or a claim based on the bank’s statutory obligation to provide basic banking services.

If you are planning a withdrawal and want to prevent a freeze from arising in the first place, we can assist you proactively: we will coordinate with your bank in advance and develop a legally sound cash-out strategy together with you.