What happens when a foreigner cannot prove the source of money transferred to Turkey? Learn about bank compliance reviews, rejected transfers, account restrictions, suspicious transaction reporting, property purchases and how to document legitimate funds.

A foreigner who transfers a substantial amount of money to Turkey may be asked by a Turkish bank to explain and document where the funds came from, who owns them and why they were transferred. If the customer cannot provide a satisfactory explanation, the consequences can range from requests for additional documents to rejection or delay of the transaction and, where legally defined suspicion exists, suspicious transaction reporting.

However, inability to produce one particular document does not automatically mean that the money is illegal, nor does it automatically establish money laundering or another criminal offence.

Turkish anti-money-laundering rules require regulated institutions to know their customers, obtain sufficient information concerning customers and their activities, identify persons conducting transactions and apply other required customer due-diligence measures. Where information, suspicion or reasonable grounds for suspicion exist that transaction assets were illegally obtained or are being used for unlawful purposes, a suspicious transaction report must be submitted.

The practical question for a foreign property buyer, investor or company is therefore not simply whether one document is missing. The issue is whether the legitimate economic history of the money can be demonstrated through reliable evidence as a whole.

Why Do Turkish Banks Ask Foreigners About the Source of Money?

Banks operate within a customer due-diligence and transaction-monitoring framework.

Official Financial Crimes Investigation Board guidance explains that regulated institutions must obtain sufficient information concerning their customers and customer activities. Customer identification is part of a broader set of measures rather than the bank merely checking a passport and opening an account.

Banks therefore examine whether transactions are consistent with the information available concerning the customer.

For example, a foreign customer who normally maintains a relatively small account balance but suddenly receives EUR 1.5 million may reasonably be asked to explain the transaction.

The size of the transfer alone does not establish illegality. The bank is attempting to understand the economic background of the payment.

What Does “Unable to Document the Source of Funds” Actually Mean?

There are several different situations.

A foreigner may know exactly where the money came from but no longer possess the original document.

Another customer may have some documentation but significant gaps in the transaction history.

A third customer may provide an explanation that conflicts with bank records.

A fourth may genuinely be unable to explain who provided the money.

These situations should not be treated identically.

For example, a foreign investor who sold a business ten years ago but cannot locate one historic document is in a very different position from someone receiving repeated payments from unrelated third parties without being able to explain why.

Does Missing Documentation Automatically Make the Money Illegal?

No.

The absence of a particular document does not itself prove criminal origin.

However, unexplained gaps can make it difficult for the bank to satisfy its own regulatory obligations.

The customer should therefore focus on reconstructing the transaction history through alternative reliable evidence.

Bank statements, tax records, contracts, corporate documents, court records, inheritance records and official property records may collectively demonstrate a legitimate source even where one original document is unavailable.

Can the Bank Ask for Additional Documents?

Yes.

If the first documents supplied do not adequately explain the transaction, the bank may seek additional information.

The customer should respond carefully and consistently.

For example, if a foreign buyer initially says that EUR 400,000 came from employment savings but later states that the money came from the sale of a company, that inconsistency can create additional questions.

If there was an innocent misunderstanding, it should be corrected clearly and supported with documentation.

Can the Bank Reject the Transfer?

Potentially.

Customer due diligence includes measures concerning transaction rejection and termination of business relationships where the applicable requirements cannot be satisfied. Official Financial Crimes Investigation Board guidance expressly identifies transaction rejection and termination of business relationships within the customer due-diligence framework.

This does not mean that every customer unable to locate a document will automatically lose access to banking services.

The bank’s response will depend on the transaction, risk assessment, available evidence and regulatory obligations.

Can the Bank Return the Money to the Sending Account?

Depending on the transaction and banking circumstances, a payment may be rejected or returned rather than credited or released to the intended beneficiary.

A foreign customer should determine exactly what has happened.

“Bank transfer blocked” can describe several legally different situations: a transfer awaiting compliance review, a rejected incoming transfer, a returned international payment, a bank-imposed restriction or a restriction arising from a competent authority.

The correct response depends on which situation exists.

Can the Bank Restrict the Customer’s Account?

Potentially, but the legal basis matters.

A customer should distinguish between a bank conducting additional compliance checks and an account being subject to a formal legal restriction.

An internal compliance review is not necessarily the same as a judicial seizure, statutory transaction postponement or asset-freezing decision.

The customer should therefore ask what banking functions remain available and what additional documentation can be submitted.

Does Failure to Prove Source of Funds Automatically Trigger a Suspicious Transaction Report?

Not automatically.

Under Law No. 5549, the reporting obligation arises where there is information, suspicion or reasonable grounds for suspicion that assets involved in an attempted or completed transaction were illegally obtained or are being used for unlawful purposes.

Therefore, inability to produce one document should not be confused with an automatic reporting rule.

Nevertheless, unexplained transactions, inconsistent statements, unusual third-party payments and other risk indicators may contribute to a regulated institution’s overall assessment.

The Financial Crimes Investigation Board updated its suspicious transaction reporting guides in 2025 based on sector risks and the updated National Risk Assessment, reinforcing the risk-based nature of the framework that remains relevant in 2026.

Will the Bank Tell the Foreigner Whether a Report Was Filed?

The customer should not assume that the bank will disclose its suspicious transaction reporting decisions.

The anti-money-laundering framework includes restrictions concerning disclosure of suspicious transaction reporting. Official Financial Crimes Investigation Board guidance expressly identifies non-disclosure as a separate obligation imposed on regulated institutions.

Therefore, a bank’s refusal to explain internal compliance decisions does not by itself prove that the customer is under criminal investigation.

Can the Transfer Be Temporarily Postponed?

Turkey has a specific statutory mechanism allowing qualifying transactions to be postponed where assets are suspected of being connected with money laundering or terrorist financing.

Article 19/A of Law No. 5549 provides for postponement for up to seven business days under the statutory conditions so that the suspicion can be examined and the results transmitted to competent authorities where necessary.

The implementing regulation similarly provides that where a suspicious transaction report is submitted together with a postponement request, the obliged institution refrains from executing the transaction while awaiting the relevant decision, subject to the statutory seven-business-day framework.

This specific mechanism should not be confused with every ordinary bank compliance delay.

Does Every Bank Restriction Have to End After Seven Business Days?

No.

The seven-business-day rule relates to the specific statutory transaction-postponement mechanism.

Other restrictions can have different legal foundations.

For example, a transaction or account could potentially be affected by another judicial or administrative measure.

Accordingly, a foreigner whose account remains restricted should not simply assume that the bank is acting unlawfully because seven business days have passed.

The legal basis of the continuing restriction must first be identified.

What If the Money Came from Years of Cash Savings?

This can create evidentiary difficulty.

Suppose a foreign customer states that EUR 300,000 deposited or transferred into Turkey represents twenty years of accumulated cash savings.

The customer may genuinely have saved the money lawfully, but a bank may reasonably ask how that explanation can be verified.

Historical salary records, tax returns, previous bank withdrawals, business records, property transactions and other evidence may help reconstruct the financial history.

The weaker the documentary trail, the more important consistency becomes.

What If the Money Came from a Property Sale Abroad?

A foreign property sale is often comparatively straightforward to document.

The customer can potentially provide the previous property’s sale agreement, official ownership-transfer documentation, foreign bank statements showing receipt of the purchase price and records demonstrating the subsequent transfer to Turkey.

If the original sale agreement is unavailable, official registry records, banking records and tax documents may sometimes help reconstruct the transaction.

The objective is to establish a credible chain:

previous property → sale → receipt of money → transfer to Turkey.

What If the Money Is Inheritance?

Inherited funds can constitute a legitimate source of money.

The customer should collect whatever evidence exists concerning the estate and distribution of the inheritance.

This can include inheritance decisions, estate documents, bank statements, probate-related documentation and records showing the transfer from the deceased’s estate or other heirs.

A foreign heir purchasing property in Ankara with inherited money should ideally prepare these documents before sending a substantial amount to the Turkish banking system.

What If the Money Came from a Family Member?

The bank may seek information concerning both the recipient and the person who provided the funds.

For example, a foreign buyer purchasing an apartment in Istanbul receives EUR 500,000 from a parent.

The customer should be able to explain whether the payment is a gift, loan or another arrangement.

Where appropriate, documentation concerning the parent’s legitimate source of the EUR 500,000 may also become relevant.

Using a family relationship does not eliminate source-of-funds questions.

What If There Is No Written Loan Agreement?

Suppose a foreign investor says that USD 600,000 came from a private loan but no written loan agreement exists.

The absence of a written agreement may make the explanation harder to establish, but the customer should not fabricate or backdate documentation.

Instead, existing evidence should be examined.

Bank transfers between the lender and borrower, messages discussing the loan, repayment records, accounting documents and other contemporaneous evidence may be relevant.

Creating a false agreement after the bank begins asking questions can create substantially greater risk.

What If the Money Came from Business Profits?

The customer should connect the funds to the business.

Relevant evidence may include corporate financial statements, tax documents, dividend resolutions, shareholder records, company bank statements and payment records.

For example, if a company owner transfers EUR 800,000 to Turkey and states that the money represents dividends, there should ideally be corporate records consistent with that explanation.

Company money and personal money should not be treated interchangeably without understanding the legal basis of the transfer.

What If the Money Came from Selling Company Shares?

The customer can attempt to reconstruct the share-sale transaction.

A share purchase agreement, corporate records, shareholder resolutions where applicable, bank statements showing receipt of the consideration and tax documentation can help.

Where the transaction occurred many years earlier, official corporate or banking records may still provide useful evidence.

What If the Money Came from Cryptocurrency?

This can be more complicated if the transaction history has not been preserved.

A customer relying on digital-asset profits should attempt to establish the chain between acquisition of the assets and the fiat money eventually transferred to Turkey.

Exchange statements, wallet transaction histories, purchase records, sale records, bank deposits and tax documentation may become important.

The customer should not simply state that “the money came from cryptocurrency” without attempting to demonstrate the transaction history.

What If Cryptocurrency Records Are Missing?

Alternative records should be collected wherever possible.

Exchange account histories may sometimes be retrieved. Blockchain transaction records may provide part of the transaction history. Bank records may show payments to and from exchanges.

However, merely demonstrating that a wallet transferred digital assets does not necessarily establish how the customer originally obtained those assets.

The complete economic history should be reconstructed as far as reasonably possible.

What If the Money Was Received in Cash from a Property Buyer?

Large undocumented cash transactions can be particularly difficult to explain.

The customer should collect the underlying property-sale documentation, ownership records and any evidence concerning receipt of the purchase price.

If the customer sold a property but the official documents show a substantially different transaction structure from the explanation given to the bank, additional legal and tax questions may arise.

What If the Money Was Transferred Through Several Countries?

A complicated international payment route does not automatically mean that the funds are unlawful.

However, it can create more questions.

For example:

Customer’s company → holding company → shareholder → foreign bank → another intermediary → Turkish account.

The customer may need to explain each significant step.

Corporate ownership records, contracts, bank statements and transaction documents can be used to establish why the funds moved through that structure.

What If Money Was Sent Through a Friend’s Account?

This can significantly complicate the analysis.

Suppose a foreign property buyer owns EUR 250,000 but transfers it first to a friend’s account and asks the friend to send it to the seller in Turkey.

The bank may reasonably ask why a third party is involved.

The customer may then need to demonstrate both the original source of the money and the reason for the intermediary transfer.

For substantial property or investment transactions, unnecessary use of third-party accounts should generally be avoided.

Can This Cause Problems with a Property Purchase?

Yes.

A banking delay can become a contractual problem when the purchase agreement contains a strict payment deadline.

Suppose a foreign buyer agrees to purchase property in Mersin and must pay the remaining EUR 350,000 by a specified date.

The Turkish bank requests source-of-funds evidence, and the buyer cannot immediately provide it.

Even if the money is legitimate, the buyer may miss the contractual deadline.

The purchase agreement should therefore be reviewed promptly to determine whether an extension, written amendment or other protective measure is necessary.

What About Property Purchased for an Investment-Based Citizenship Application?

The banking and property documentation should be coordinated carefully.

An unexplained payment structure can create difficulties not only with the bank but also with demonstrating the underlying investment transaction.

The buyer should avoid undocumented third-party payments, inconsistent payment descriptions and unexplained cash movements.

If source-of-funds documentation is incomplete, the problem should be addressed before substantial funds are committed wherever possible.

Can This Affect Company Investment?

Yes.

Foreign companies investing in Izmir, Bursa, Ankara or elsewhere in Turkey may encounter similar questions.

The bank may need to understand whether a transfer constitutes equity investment, shareholder financing, payment for shares, a commercial loan or another corporate transaction.

Corporate documents should correspond with the banking explanation.

A transfer described to the bank as “capital investment” should not be supported by documents showing that it is actually payment for unrelated services.

Should the Customer Provide Every Document They Possess?

Not necessarily.

More documents do not automatically produce a clearer explanation.

A well-organized source-of-funds file is usually more useful than hundreds of unrelated pages.

The documentation should explain the transaction chronologically and identify the relevant amounts, accounts and parties.

Where the bank requests specific documents, those requests should be addressed accurately.

What If the Original Document Is Lost?

The customer should determine whether an official replacement or equivalent record can be obtained.

Possible alternatives may include certified registry records, duplicate contracts, bank statements, tax records, court decisions, corporate records and official inheritance documentation.

The objective should be reconstruction, not fabrication.

Should a Foreigner Create a New Agreement to Explain an Old Payment?

Not if the new document falsely represents what happened.

Backdating or fabricating agreements, invoices, loan contracts or receipts can create serious legal problems.

If an old transaction was genuinely undocumented, the safer approach is to explain that fact and support the explanation with genuine contemporaneous evidence.

Can the Customer Move the Money to Another Bank Instead?

Trying to move unexplained funds repeatedly between banks can make the situation worse rather than solve it.

The Financial Crimes Investigation Board’s sector guidance is built around risk indicators and risk-based detection of suspicious transactions.

A customer should therefore address the underlying documentation problem rather than attempting to make the transaction less visible.

Can the Customer Split the Money into Smaller Transfers?

Artificially dividing one transaction into numerous smaller payments merely to avoid scrutiny is not a sound solution.

If the genuine transaction is a EUR 600,000 property purchase, the customer should document that EUR 600,000 transaction.

Creating dozens of smaller unexplained transfers can create additional compliance questions.

Does an Account Restriction Mean There Is a Criminal Case?

No.

A bank compliance issue and a criminal investigation are not synonymous.

However, if the customer receives an official request from a prosecutor, court or other competent authority, the matter has moved beyond an ordinary banking inquiry and should be assessed accordingly.

The customer should preserve every official document and avoid making unsupported assumptions about the nature of the proceedings.

Can a Foreigner Challenge a Continuing Restriction?

Potentially, but the correct remedy depends on the source of the restriction.

The first task is to distinguish between:

a bank compliance review, rejection of an individual payment, a statutory transaction postponement, a judicial measure or another formal asset restriction.

Each has a different legal framework.

This is why simply asking, “How do I unblock my account?” may not be enough. The legal basis of the block must first be identified.

Frequently Asked Questions

1. Is money automatically considered illegal if a foreigner cannot prove its source?

No. Missing documentation does not automatically prove illegal origin. However, the inability to explain the transaction can create serious compliance difficulties.

2. Can a Turkish bank reject a transfer if source-of-funds documents are insufficient?

Potentially, yes. Turkish anti-money-laundering rules require customer due diligence, and the framework includes transaction rejection and termination of business relationships where applicable requirements cannot be satisfied.

3. Does missing documentation automatically cause a suspicious transaction report?

No. The statutory reporting test concerns information, suspicion or reasonable grounds for suspicion that assets were illegally obtained or are being used for unlawful purposes.

4. Can old bank statements be used instead of a missing contract?

Potentially. Alternative evidence should be assessed collectively to determine whether it establishes the genuine source and transaction history.

5. Can inherited money be transferred to Turkey?

Yes, but substantial inherited funds may require estate and banking documentation demonstrating their origin.

6. What if the money was a gift from parents?

The bank may seek documentation concerning the gift and potentially the donor’s source of funds.

7. What if the funds came from cryptocurrency?

The customer should attempt to establish the acquisition, wallet, exchange, sale and banking history of the assets.

8. Can a suspicious transaction be postponed?

Under the specific statutory mechanism in Article 19/A of Law No. 5549, qualifying transactions can be postponed for up to seven business days under the applicable conditions.

9. Does every bank restriction end after seven business days?

No. The seven-business-day rule applies to the specific statutory postponement mechanism, not every possible bank, judicial or administrative restriction.

10. Can a foreigner deal with the problem while living abroad?

Potentially, yes. Appropriate legal representation can be used to review banking correspondence, organize documentation and address related legal proceedings without requiring the foreign customer to remain physically in Turkey for every step.

How Can Foreigners Reconstruct Missing Source-of-Funds Evidence?

The most important step is to create a chronological explanation.

Start with the origin of the money. Determine whether it came from employment, business profits, dividends, sale of property, sale of shares, inheritance, family support, a loan, investments or another source.

Then identify every significant movement of the funds.

For example:

sale of foreign property → foreign bank account → investment account → Turkish bank account → Turkish property seller.

Each stage should be supported with genuine documents wherever possible.

Where an original document is unavailable, alternative evidence should be sought. Bank statements, official registry records, tax documentation, corporate records, court documents and contemporaneous correspondence can sometimes help reconstruct an incomplete history.

The explanation must remain consistent. The customer should not describe the same money as salary savings to one institution, inheritance to another and a family loan to a third.

Most importantly, foreigners should never manufacture evidence merely because the genuine transaction is difficult to document.

The Financial Crimes Investigation Board’s current compliance framework continues to emphasize customer due diligence, risk-based assessment and suspicious transaction reporting, while updated sector reporting guidance reflects the 2025 National Risk Assessment.

Legal Assistance When Source of Funds Cannot Be Fully Documented in Turkey

Firat Fesih Kaya Law Office provides legal assistance to foreign individuals, property buyers, investors and companies dealing with source-of-funds inquiries, delayed international transfers, bank compliance reviews and account restrictions in Ankara, Istanbul, Izmir, Mersin, Bursa and throughout Turkey.

Legal assistance may include reviewing bank correspondence, reconstructing source-of-funds documentation, examining property-sale proceeds, inheritance funds, family transfers, shareholder payments, company investments and cryptocurrency-related transactions, identifying the legal basis of continuing account restrictions and assessing available remedies where a transfer or account remains blocked.

Foreigners should seek legal assessment particularly quickly where a substantial property payment is approaching its contractual deadline, a bank has rejected several explanations, an entire account has become inaccessible or official authorities have become involved.

Phone: +90 312 434 22 22
Mobile / WhatsApp: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Office: Mevlana Boulevard No:221, Yildirim Tower, Balgat, Cankaya, Ankara, Turkey

The key 2026 principle is that inability to produce one source-of-funds document does not automatically establish that money is illegal. However, unexplained funds can prevent a bank from satisfying its customer due-diligence obligations and may lead to additional inquiries, rejection or postponement of transactions and, where the statutory suspicion threshold is met, suspicious transaction reporting. Foreign customers should reconstruct the legitimate financial history with genuine evidence rather than attempting to bypass compliance checks or create documents after the event.