MASAK Freezes a Foreign Investor’s Assets in Turkey: How Can the Measure Be Challenged? (2026 Updated Guide)

A foreign investor’s bank accounts or assets are frozen in Turkey following a MASAK investigation. Learn how to identify the legal basis, document the source of funds, challenge seizure or freezing measures and seek release of assets.

A foreign investor may suddenly discover that a Turkish bank account cannot be used, money cannot be transferred, company funds are inaccessible or other assets have effectively been frozen following a financial investigation involving Turkey’s Financial Crimes Investigation Board, commonly known as MASAK. These cases require an immediate distinction between a bank compliance restriction, a temporary administrative measure, a prosecutor-led criminal investigation and a judicial seizure or asset-freezing decision. The legal remedy depends on the actual legal basis of the restriction. A foreign investor should therefore obtain the relevant records, determine which authority ordered or triggered the restriction, document the legitimate source and commercial purpose of the funds and challenge any disproportionate or legally unsupported measure through the appropriate procedure.

Why Can a Foreign Investor’s Assets Be Frozen in Turkey?

Asset restrictions can arise from suspicions concerning money laundering, suspicious financial transactions, unexplained transfers, fraud investigations, proceeds of crime, sanctions-related concerns, unusual corporate transactions or another criminal investigation.

A large international transfer alone does not establish criminal conduct. Nevertheless, unusual transaction patterns can lead banks or authorities to request additional information.

Is Every “MASAK Block” Actually a MASAK Asset Freeze?

No. This distinction is extremely important.

A bank may temporarily restrict transactions because of its own compliance obligations or enhanced review procedures. In another case, the restriction may arise from an investigation conducted by a public prosecutor or a judicial decision affecting particular assets.

The investor should identify the precise legal mechanism rather than relying on a bank employee’s description that “MASAK blocked the account.”

Ask the Bank for the Available Information

The account holder should determine, as far as legally available, whether the restriction concerns the entire account, a particular amount or only specific transactions.

The bank may be legally restricted from disclosing certain investigative information. Nevertheless, the investor’s lawyer can investigate the procedural position through the appropriate authorities where permitted.

Determine Whether There Is a Criminal Investigation

One of the first questions is whether a prosecutor’s investigation file exists.

If the restriction is connected with a criminal investigation, the defense strategy must address both the financial measure and the allegations underlying the investigation.

Identify the Exact Assets Affected

Prepare a complete inventory of frozen property:

bank accounts, investment accounts, company shares, receivables, vehicles, real estate and other affected assets should be identified separately.

A measure affecting one transaction should not automatically be treated as legally identical to a restriction covering the investor’s entire asset portfolio.

Obtain the Decision Where Legally Possible

The defense should identify the authority, date, scope and legal basis of the measure.

This determines which objection or review mechanism is available.

Examine the Source of Funds

Source-of-funds evidence is frequently central to the defense.

A foreign investor should be prepared to explain how the money was earned, where it originated, why it was transferred to Turkey and how it was intended to be used.

What Documents Can Prove the Source of Funds?

Depending on the transaction, relevant evidence may include:

sale agreements, company financial statements, dividend resolutions, salary records, inheritance documents, loan agreements, property-sale records, investment agreements, bank statements, tax records and commercial invoices.

The evidence should create a coherent financial history.

Build a Complete Money Trail

Do not submit only the final transfer receipt.

The strongest evidence often shows the movement of funds from their legitimate economic source through intermediate accounts and finally into Turkey.

Bank statements should be organized chronologically.

Large Transfers Are Not Automatically Illegal

A substantial transfer by a foreign investor may arise from a property acquisition, capital contribution, acquisition of shares, commercial investment or other legitimate transaction.

The amount itself does not establish criminal origin. The investor should nevertheless be capable of documenting its economic purpose.

Explain the Commercial Purpose

Source of funds and purpose of funds are related but different.

For example, money may legitimately originate from the sale of a foreign company and then be transferred to Turkey for a real-estate investment. Both stages should be documented.

Company Capital Transfers Should Be Documented

If the funds were transferred for incorporation or capitalization of a Turkish company, preserve corporate resolutions, share subscription documents, investment agreements and accounting records.

The amount transferred should correspond logically with the commercial transaction.

Shareholder Loans Require Clear Documentation

Foreign investors sometimes finance Turkish companies through shareholder loans.

A written loan agreement, corporate records, banking documentation and accounting treatment can become important if the transaction is later questioned.

Related-Party Transfers Need Additional Attention

Transfers between a foreign parent company, subsidiary, shareholder or related business can receive additional scrutiny.

Prepare documentation explaining the corporate relationship and economic purpose.

Invoice-Based Payments Should Match the Underlying Trade

Where funds arise from international trade, compare the transfer with invoices, purchase orders, customs records, delivery documents and accounting entries.

A payment should be traceable to the actual commercial transaction it supposedly represents.

Cryptocurrency Transactions Can Complicate the Evidence

Where funds passed through cryptocurrency exchanges or digital assets before entering the banking system, additional tracing may be required.

Preserve exchange records, wallet transaction histories, acquisition records and evidence connecting the digital assets with the investor.

Do Not Create Documents After the Freeze to Invent a Transaction

The investor should never fabricate loan agreements, invoices or contracts retrospectively to create an artificial explanation for the money.

The defense should reconstruct the genuine transaction using authentic evidence.

Explain Legitimate Cash Transactions Carefully

Where physical cash is involved, proving origin may be more difficult than with bank transfers.

Customs declarations, withdrawal records, contracts and other contemporaneous evidence may become important.

Separate Personal and Company Money

If an investor has transferred personal money into a Turkish company account, explain the legal basis clearly.

Was it share capital, a shareholder loan, payment for shares, reimbursement or another transaction?

Ambiguous accounting descriptions can create unnecessary suspicion.

Review the Transaction Descriptions

Bank-transfer descriptions can sometimes create problems when they do not correspond with the real commercial transaction.

Prepare supporting documentation explaining inaccurate or incomplete transfer descriptions where necessary.

Can the Investor Challenge the Freeze?

Potentially. The applicable procedure depends on whether the restriction arises from banking compliance, an administrative measure, a prosecutor’s investigation, a judicial seizure decision or another statutory mechanism.

The first task is therefore to identify the measure correctly.

Criminal Procedure Remedies May Be Available

Where assets have been seized within a criminal investigation, Turkish criminal procedure provides mechanisms through which affected persons may seek review or return of property depending on the circumstances.

The defense should address why continued restriction is unnecessary or legally unsupported.

Proportionality Can Be Important

Suppose the investigation concerns a specific transaction worth a limited amount while substantially larger unrelated assets are restricted.

The defense should examine whether the scope of the measure corresponds with the suspected transaction and applicable legal requirements.

Request Partial Release Where Appropriate

Even if authorities consider some restriction necessary, it may be possible in appropriate circumstances to argue that unrelated assets should not remain affected.

The request should identify the assets and demonstrate why they are independent of the suspected transaction.

Company Operating Funds Require Special Attention

Freezing a company’s operational bank account can prevent payment of salaries, taxes, suppliers and ordinary expenses.

Document these consequences immediately.

Preserve Payroll and Supplier Evidence

If the freeze threatens business operations, prepare payroll schedules, tax obligations, supplier invoices, lease payments and other evidence showing the practical consequences.

This can help support arguments concerning the scope and proportionality of continued restrictions.

A Foreign Investor and the Turkish Company Are Not Necessarily the Same Person

Where the investigation concerns an individual shareholder, determine whether restrictions affecting company assets have an independent legal basis.

Corporate assets should not automatically be treated as personal assets merely because a foreign investor owns shares in the company.

Beneficial Ownership May Be Investigated

Authorities may examine who ultimately controls companies or funds involved in complex international structures.

Prepare corporate registers, shareholder charts and supporting documentation identifying ultimate ownership accurately.

Offshore Companies Require Transparent Documentation

Using a foreign holding company is not inherently unlawful.

However, multi-jurisdictional structures can require additional evidence concerning ownership, commercial purpose and the origin of funds.

What If the Investor Is Not a Suspect?

A person whose assets are affected may potentially have legal interests even where they are not the primary suspect.

The defense should establish ownership of the affected property and its separation from the alleged criminal activity.

Third-Party Ownership Claims Can Be Important

If seized money or property belongs to another company, shareholder or family member, ownership should be established with objective documentation.

Mere statements that the property belongs to someone else may not be sufficient.

International Transfers Should Be Reconciled

Prepare both sending-bank and receiving-bank records.

If intermediary banks were involved, preserve available SWIFT and transaction information so that the complete route of the funds can be demonstrated.

Foreign Documents May Need Formal Preparation

Documents obtained abroad may require translation or other formalities depending on how and where they will be submitted.

Plan this early rather than waiting until an urgent hearing or objection deadline.

Coordinate the Financial and Criminal Defense

An asset freeze should not be treated solely as a banking problem if there is an underlying criminal investigation.

Statements submitted to explain the money may later become relevant to the criminal file. Financial explanations and criminal defense should therefore be coordinated.

Avoid Contradictory Explanations

The investor, company manager, accountant and other involved persons should not provide inconsistent descriptions of the same transaction.

Differences should be investigated before formal submissions are made.

Review Tax and Accounting Records

The financial explanation should be consistent with tax returns and company accounting.

A transaction described as a shareholder loan in court should not appear in company books as unrelated revenue without an explanation.

Can the Investor Obtain Access to the Investigation File?

Access depends on procedural status and whether restrictions concerning the investigation file apply.

Legal counsel should determine what information can lawfully be reviewed and build the defense from the available record.

What If the Investigation File Is Restricted?

A restriction on access can make early defense more difficult, but it does not mean that no legal action is possible.

The defense can still organize source-of-funds evidence, identify affected assets and pursue available procedural remedies.

How Long Can Assets Remain Frozen?

There is no useful universal answer applicable to every form of financial restriction. Duration depends on the legal basis, procedural developments and whether continued restriction remains legally justified.

The measure should be monitored rather than assumed to continue indefinitely.

Repeated Review May Become Necessary

If the investigation continues for an extended period, new developments may justify renewed applications concerning the assets.

For example, completion of financial analysis or clarification of the suspected transaction may materially change the basis for continued restriction.

What If the Investigation Ends Without Prosecution?

The legal status of seized or restricted assets should be reviewed immediately following a decision ending the investigation.

Do not assume that every banking restriction disappears operationally at exactly the same moment without follow-up.

What If the Investor Is Acquitted?

Where assets remain restricted despite developments favorable to the defendant, the legal basis for continued restriction should be examined promptly and the appropriate release procedures pursued.

Can the Investor Claim Compensation?

Potential compensation issues may arise in certain circumstances where coercive measures are later determined to have been unlawful or where other statutory requirements are satisfied.

Compensation should be analyzed separately from the immediate objective of releasing the assets.

Banking Compliance Restrictions May Continue Separately

Even if a criminal restriction is lifted, a bank may still have independent compliance obligations.

The investor should distinguish between release by public authorities and the bank’s own continuing customer-risk review.

Prepare a Source-of-Funds File Before Problems Occur

Foreign investors transferring substantial funds to Turkey should maintain an organized compliance file containing banking records, tax evidence, investment agreements, corporate documentation and proof of economic origin.

Preparing these materials before a restriction occurs can dramatically improve response time.

Immediate Legal Action Plan

A foreign investor facing an apparent MASAK-related asset freeze should immediately determine which authority or institution imposed the restriction, identify every affected asset, investigate whether a criminal file exists, obtain available decisions, protect objection rights, build a chronological source-of-funds record, document the commercial purpose of transfers, reconcile bank and accounting records, demonstrate ownership, identify unrelated assets, document business disruption and coordinate financial evidence with the criminal defense.

Frequently Asked Questions

Does MASAK personally order every bank account described as “MASAK blocked”?

No. Different legal and banking mechanisms may produce an account restriction. The actual authority and legal basis should be identified before choosing a remedy.

Can a foreign investor challenge an asset freeze in Turkey?

Potentially. The appropriate remedy depends on the legal basis and authority responsible for the restriction.

What is the most important evidence?

A documented source-of-funds and money trail showing where the assets originated, how they moved and the legitimate economic purpose of the transaction can be particularly important.

Is receiving a large amount of foreign money a crime?

Not by itself. The legality of the transaction depends on its actual circumstances and source.

Can company accounts be released while an investigation continues?

Potentially, depending on the legal basis and circumstances. Arguments concerning ownership, necessity, proportionality and operational consequences may become relevant.

What if only part of the money is connected with the investigation?

The defense should identify the relevant amount and examine whether continued restriction of unrelated assets is legally justified.

Can property and company shares also be affected?

Depending on the investigation and applicable legal measures, restrictions can potentially concern assets other than ordinary bank balances.

Should foreign documents be submitted?

Where relevant, foreign bank records, contracts, corporate documents, tax evidence and other source-of-funds materials can be important. Their formal submission requirements should be checked.

Can the investor claim damages if the measure was unlawful?

Potential compensation rights may exist in qualifying circumstances, but they should be evaluated separately under the applicable legal framework.

What should a foreign investor do first?

Identify the exact legal basis of the restriction before treating it simply as a “MASAK freeze.” Once the measure is identified, build a complete source-of-funds and transaction file and pursue the specific objection, release or judicial remedy available for that measure.

Client-Focused Legal Support for MASAK Asset Freezes in Turkey

A financial investigation affecting a foreign investor can simultaneously involve bank account restrictions, asset seizure, source-of-funds inquiries, money-laundering allegations, company operations and criminal proceedings. Fırat Fesih Kaya Law Office assists foreign investors, shareholders, company managers and international businesses facing financial investigations and asset restrictions in Turkey. Lawyer Fırat Fesih Kaya provides legal assistance in identifying the legal basis of asset restrictions, preparing source-of-funds evidence, challenging seizure and freezing measures, coordinating criminal and financial defense and seeking the release of assets where legally available.

Phone: +90 312 434 22 22
Mobile: +90 532 769 22 22
Email: info@firatfesihkaya.av.tr
Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey