Introduction
Investment services in Turkey are strictly regulated under Turkish Capital Market Law. Any person or institution intending to provide brokerage services, order transmission, execution of orders, portfolio management, investment advice, underwriting, placement, custody services or other capital market-related activities must carefully assess whether a license or authorization from the Capital Markets Board of Türkiye, known as the CMB in English and SPK in Turkish, is required.
The Turkish capital market system is based on the principle that investment services and activities may only be carried out by institutions authorized by the CMB. This principle protects investors, preserves market integrity and ensures that financial services are provided by qualified, supervised and financially reliable institutions. It also prevents unauthorized persons, online platforms, foreign entities, social media groups or unlicensed advisors from offering risky or misleading investment services to Turkish residents.
The main statute is Capital Markets Law No. 6362. Under the Turkish regulatory framework, capital market activities include the activities of capital market institutions, investment services and activities falling within the scope of the law, and ancillary services connected to them. The SPK’s investor guidance explains that Article 34 of the Capital Markets Law defines capital market activities in this broad manner and that Article 37 lists investment services and activities.
For companies, fintech platforms, banks, brokerage firms, portfolio management companies, foreign investment firms and individual advisors, licensing is not a procedural formality. It is a legal threshold. Providing regulated investment services without authorization may result in administrative sanctions, criminal complaints, imprisonment, judicial fines, civil liability and serious reputational damage.
Legal Framework for Investment Services in Turkey
The legal framework governing investment services in Turkey is primarily based on Capital Markets Law No. 6362, the Communiqué on Principles Regarding Investment Services, Activities and Ancillary Services III-37.1, the Communiqué on Principles of Establishment and Activities of Investment Firms III-39.1, and the CMB’s related principle decisions and guides.
The CMB’s official capital market legislation page lists the Communiqué on Investment Services, Activities and Ancillary Services III-37.1, the Communiqué on Principles of Establishment and Activities of Investment Firms III-39.1, and the Communiqué on Documentation and Record-Keeping System Regarding Investment Services and Activities and Ancillary Services III-45.1 under the investment firms, investment services and activities section.
The SPK’s Investment Services and Institutions Guide states that the III-37.1 Communiqué and the III-39.1 Communiqué entered into force on 1 July 2014. The same page also states that the guide was accepted as a CMB principle decision and has been updated several times, including by the i-SPK.37.9 principle decision dated 17 June 2026.
This is important because investment services regulation in Turkey is not static. The CMB updates its guidance to reflect market developments, new products, compliance needs and interpretative issues. Institutions operating in this field must therefore monitor not only the law and communiqués but also CMB board decisions, guides, public announcements and enforcement practice.
What Are Investment Services and Activities?
Investment services and activities are regulated services performed in relation to capital market instruments. The SPK’s investor guidance lists the main investment services and activities under Article 37 of Capital Markets Law No. 6362. These include receiving and transmitting orders concerning capital market instruments, executing orders on behalf of customers, trading capital market instruments on own account, portfolio management, investment advice, underwriting in public offerings, and placing capital market instruments without firm commitment.
The English text of the III-37.1 Communiqué also identifies investment services and activities requiring prior CMB authorization. These include reception and transmission of orders, execution of orders, dealing on own account, individual portfolio management, investment advice, underwriting on a firm commitment basis, placing without firm commitment, and operation of multilateral trading systems and regulated markets other than exchanges.
The practical importance of this list is clear: if a business activity falls into one of these categories, it generally cannot be conducted freely. A company that collects customer orders for shares, a platform that routes orders to brokers, a person who gives personalized investment recommendations, or an institution that manages individual portfolios may be performing a regulated investment service.
The legal classification depends on the substance of the activity, not merely the name used by the parties. Calling a service “financial education,” “market commentary,” “membership service,” “signal group,” “portfolio support,” “copy trading,” “investment club” or “consultancy” does not automatically remove it from the scope of investment services regulation.
Who May Provide Investment Services in Turkey?
Investment services in Turkey may generally be provided by investment institutions authorized by the CMB. Investment institutions mainly include intermediary institutions, banks and certain other capital market institutions permitted to perform specific services under capital market legislation.
The CMB’s official page on investment institutions identifies investment institutions as a separate category and provides sections for intermediary institutions and banks. The CMB’s application process page also states that the investment services framework concerns investment institutions consisting of intermediary institutions and banks, and that these institutions must use the relevant application forms when renewing existing permissions or applying for new investment service permissions under the III-37.1 and III-39.1 communiqués.
This distinction matters because not every financial institution may provide every investment service. Banks may be authorized for certain investment services, but the scope of their permission must be assessed under capital market regulations. Intermediary institutions may also have different license scopes depending on their authorization. Portfolio management companies may conduct portfolio management and, where permitted, investment advisory-related activities under the relevant framework.
Therefore, clients and investors should not assume that a famous bank, fintech company, foreign broker or financial consultant is automatically authorized for all investment services. The specific license scope should be checked through CMB records and official authorization lists.
Licensing and CMB Authorization
The licensing principle is one of the core protections of Turkish investment services law. Before providing a regulated investment service, an institution must obtain the necessary authorization from the CMB. The authorization process examines whether the applicant satisfies legal, financial, organizational, technical and operational requirements.
The SPK’s application process page lists separate activity permission categories, including order transmission intermediation, transaction intermediation, portfolio intermediation, individual portfolio management, investment advisory activity, public offering intermediation, and limited or general custody services. This demonstrates that authorization is activity-specific. A license for one activity does not necessarily authorize the institution to perform all investment services.
In practice, an institution must determine the exact services it intends to provide, prepare the required application documents, demonstrate that it meets the organizational and capital requirements, establish internal control and risk management systems, appoint qualified personnel, ensure record-keeping infrastructure and comply with CMB standards.
The CMB may refuse, limit or condition authorization if the applicant does not satisfy the applicable requirements. Even after authorization, the institution remains subject to ongoing supervision. A licensed institution must continue to comply with capital adequacy, internal systems, documentation, customer protection, suitability, appropriateness, disclosure, conflict-of-interest and record-keeping obligations.
Establishment and Activity Conditions for Investment Firms
The III-39.1 Communiqué is one of the key regulations governing the establishment and activities of investment firms. The SPK’s 2014 announcement explains that the III-39.1 Communiqué was prepared to complete the III-37.1 Communiqué and that it regulates the establishment of intermediary institutions, general activity conditions of investment institutions and their obligations.
This means that licensing is not limited to a single approval letter. Investment firms must be established and operated in accordance with detailed regulatory standards. These may include minimum capital requirements, fit-and-proper conditions for founders and managers, internal audit, internal control, risk management, information systems, professional staff, documentation systems, customer asset protection and organizational structure.
Investment firms must also ensure that their actual operations remain within the scope of their authorization. A firm authorized only for limited services cannot expand into portfolio management, investment advice, public offering intermediation or custody services without obtaining the necessary additional permissions.
For foreign financial institutions, the establishment and activity rules are particularly important. A foreign license does not automatically replace Turkish CMB authorization. If services are provided in Turkey or targeted at Turkish residents, Turkish licensing rules may apply.
Brokerage and Order-Related Services
Brokerage-type activities are among the most common investment services. These may include receiving customer orders, transmitting orders to another institution, executing orders in relation to capital market instruments, or dealing on own account.
Order transmission may appear simple, but it is a regulated service. A person or platform that collects orders from investors and forwards them to a broker may be performing order transmission intermediation. Similarly, a platform that enables customers to trade securities, derivatives or leveraged products may be performing regulated investment services if it targets Turkish investors.
Execution of orders also requires careful compliance. Investment institutions must record customer instructions, execute orders fairly, comply with best execution principles where applicable, disclose risks, preserve evidence and protect customer assets. Disputes frequently arise where customers allege unauthorized trades, execution errors, delayed orders, incorrect pricing or failure to follow instructions.
For investment firms, the safest legal approach is to maintain strong order recording, customer confirmation and audit systems. In capital market disputes, documentary evidence, call recordings, electronic logs and customer instruction records are often decisive.
Portfolio Management Services
Portfolio management is a regulated investment service. It generally involves managing a customer’s assets or portfolio on a discretionary basis according to the customer’s risk profile, investment objectives and contractual mandate.
Individual portfolio management requires authorization. The service provider must assess the customer’s financial position, investment knowledge, risk tolerance, investment horizon and return expectations. It must also comply with suitability rules, documentation obligations, portfolio limits, conflict-of-interest standards and reporting duties.
Portfolio management should be distinguished from general model portfolio publications or generic research reports. The CMB’s updated Investment Services and Institutions Guide explains that where investment institutions classify customers according to risk and return preferences and prepare research reports for these groups, including standard allocation recommendations, such activity may be considered a general investment recommendation rather than investment advisory activity, provided that it is not specific to an individual customer’s circumstances.
This distinction is significant. Personalized discretionary management or individualized recommendations may trigger stricter licensing requirements, whereas general research may fall outside investment advice if it satisfies the relevant criteria. However, institutions should not use this distinction abusively. If a service is effectively individualized portfolio management or advice, it should be licensed accordingly.
Investment Advice in Turkey
Investment advice is one of the most sensitive investment services in Turkey. It involves providing recommendations concerning capital market instruments based on the investor’s financial condition, risk-return preferences and investment objectives.
The SPK has expressly stated that investment advisory activity is among the investment services and activities defined in Capital Markets Law No. 6362 and may only be performed by investment institutions and portfolio management companies authorized by the CMB.
This rule has major practical consequences. Individuals, social media influencers, Telegram group administrators, YouTube commentators, foreign consultants, software platforms and unlicensed companies may cross the legal line if they provide personalized or influential investment recommendations without authorization.
A disclaimer such as “this is not investment advice” is not always sufficient. The legal assessment depends on the content, target audience, personalization, commercial nature, repetition, investor reliance and whether the statement encourages the purchase or sale of specific capital market instruments.
General market commentary is not automatically prohibited. However, when comments become personalized, directed, paid, systematic or influential enough to affect investor decisions, licensing risk increases. Institutions and individuals publishing financial content should therefore seek legal advice before monetizing investment recommendations.
Underwriting and Public Offering Intermediation
Underwriting and placing capital market instruments are also regulated investment services. These services are especially important in public offerings, initial public offerings, debt issuances and other capital market transactions.
Underwriting on a firm commitment basis means that the intermediary institution assumes a commitment regarding the sale of capital market instruments. Placing without firm commitment involves sales intermediation without assuming the same level of underwriting risk. Both activities require CMB authorization.
The regulatory purpose is to ensure that public offering processes are conducted by qualified institutions. Public offerings involve a large investor base, complex documentation, pricing, allocation, disclosure and sales obligations. Intermediary institutions play a critical role in protecting investors and ensuring that the offering complies with the approved prospectus and CMB rules.
Issuers should verify that the intermediary institution has the necessary public offering intermediation authorization. A failure to work with properly authorized institutions may jeopardize the transaction and create liability for the issuer and its managers.
Custody Services and Customer Asset Protection
Custody services are another crucial part of investment services regulation. Investors entrust cash, securities or other capital market instruments to financial institutions. The legal system must ensure that customer assets are protected, recorded, segregated and returned when required.
The SPK’s application process materials list limited and general custody service permissions among the activity permission categories for investment institutions. This reflects the importance of custody authorization as a separate regulatory area.
Custody failures may create severe consequences. If customer assets are misused, inadequately recorded, commingled with institutional assets or transferred without authorization, investors may face direct financial harm. Therefore, custody service providers must maintain strong internal control, reconciliation, accounting, reporting and customer asset protection systems.
Investors should always check whether the institution holding their assets is authorized for the relevant custody service. This is especially important for complex products, leveraged transactions, foreign securities and digital investment platforms.
Documentation and Record-Keeping Obligations
Investment services cannot be provided informally. Licensed investment institutions must maintain documentation and record-keeping systems. The CMB’s capital market legislation page lists the Communiqué on Documentation and Record-Keeping System Regarding Investment Services and Activities and Ancillary Services III-45.1 under investment firms and investment services regulation.
Documentation is essential for both regulatory supervision and dispute resolution. Customer agreements, risk disclosure forms, suitability and appropriateness tests, order records, call recordings, electronic instructions, portfolio reports, advisory documents and transaction confirmations may become evidence in future disputes.
From a compliance perspective, institutions should assume that every customer communication may later be examined by the CMB, a court, an arbitral tribunal or an expert. Poor documentation may make it difficult to prove that the institution acted lawfully.
From an investor perspective, proper documentation protects rights. Investors should keep copies of contracts, risk forms, transaction confirmations, account statements and correspondence. If an unauthorized transaction or unsuitable advice dispute arises, these records may be decisive.
Suitability, Appropriateness and Customer Classification
Investor protection requires more than licensing. Investment institutions must also understand their customers and assess whether certain services or products are suitable or appropriate for them.
Suitability and appropriateness rules are especially important for complex instruments, leveraged products, derivatives, structured products, foreign securities and high-risk investment strategies. A customer with limited experience and low risk tolerance should not be treated the same as a professional investor.
The CMB’s updated guide discusses customer classification, risk-return preferences and research reports prepared for grouped customer profiles. It clarifies when such reports may be treated as general investment recommendations rather than individualized investment advice.
In practice, suitability and appropriateness failures may lead to investor claims. If an investor suffers losses from a product that was not suitable for their profile, they may argue that the institution breached its duty of care. Therefore, institutions must not treat customer onboarding forms as empty paperwork. They are legal risk management tools.
Unauthorized Capital Market Activities
Unauthorized investment services are one of the most serious violations in Turkish capital market law. The SPK’s investor guidance page explains that capital market activities include investment services and activities, and that these activities are regulated under Capital Markets Law No. 6362.
The CMB has warned that, under Capital Markets Law No. 6362, investment services and activities in capital markets may only be carried out by institutions authorized by the Board. In its 2021 press release, the CMB noted that Turkish residents had been contacted through telephone, e-mail and social media with promises of high returns, especially in leveraged trading transactions, and that money transfers were requested to persons or entities claimed to be licensed or authorized.
The CMB has also stated that leveraged transactions for investors residing in Turkey by persons other than institutions authorized by the Board constitute unauthorized capital market activity, and that Article 109 of Capital Markets Law No. 6362 provides imprisonment from two to five years and judicial fines from five thousand to ten thousand days for unauthorized capital market activities.
This is highly relevant for foreign forex platforms, online brokers, signal sellers, investment clubs, crypto-related platforms, social media groups and individuals offering “account management” services. If they target Turkish residents without authorization, they may face serious legal consequences.
Social Media, Investment Groups and Online Recommendations
Social media has created new regulatory challenges in Turkish investment services law. Investment recommendations are now frequently shared through Telegram, WhatsApp, X, Instagram, YouTube and private membership platforms. Some of these communications may be harmless general commentary, but others may constitute unauthorized investment advice, market manipulation or fraud.
The CMB warned in 2020 that groups on social media channels and communication systems such as Facebook, Twitter, WhatsApp and Telegram were being used for activities aimed at manipulating and victimizing investors by persons without permission or authorization to engage in investment advisory or similar capital market activities.
This warning is important because the legal risk is not limited to the person giving advice. Investors who knowingly participate in manipulation schemes, spread false rumors, coordinate artificial trades or benefit from unlawful campaigns may also face legal consequences.
For content creators, the safest approach is to avoid personalized recommendations, guaranteed return promises, coordinated trading instructions, undisclosed conflicts of interest and misleading statements. For investors, the safest approach is to rely on authorized institutions, official disclosures and professional advice rather than anonymous online groups.
Cross-Border Investment Services
Cross-border investment services are particularly sensitive. A foreign institution may be licensed in its home country but still need to consider Turkish law if it targets Turkish residents. Marketing to Turkish investors, maintaining Turkish-language websites, using Turkish agents, accepting Turkish clients, running Turkish advertisements or providing investment advice to Turkish residents may create licensing issues.
The Turkish licensing regime focuses on the protection of Turkish investors and the regulation of services provided in or directed to Turkey. Therefore, a foreign license does not automatically authorize the provision of investment services in Turkey.
Foreign brokers, asset managers, fintech companies and trading platforms should conduct a Turkish law analysis before onboarding Turkish clients. This is especially important for leveraged products, derivatives, contracts for difference, foreign securities, crypto asset-related products and advisory services.
Compliance Recommendations for Investment Institutions
Investment institutions operating in Turkey should adopt a proactive compliance framework. The institution should first confirm the exact scope of its CMB authorization and ensure that every service offered to customers falls within that scope.
The institution should maintain internal control, risk management, internal audit, customer asset protection, information systems, documentation, record-keeping, conflict-of-interest and complaint-handling procedures. It should also ensure that customer-facing personnel have the necessary qualifications and licenses.
Marketing materials should be reviewed legally before publication. Advertisements, research reports, investor presentations, mobile application notifications, social media posts and customer messages may all create regulatory risk if they are misleading or exceed the institution’s authorization.
Investment institutions should also train employees regularly. Many violations occur not because the institution lacks a license, but because employees provide services beyond the authorized scope, give inappropriate investment advice, fail to document customer instructions or make exaggerated statements about returns.
Compliance Recommendations for Investors
Investors should verify whether the institution providing the service is authorized by the CMB and whether the authorization covers the relevant service. They should also avoid transferring money to personal bank accounts, foreign accounts or persons claiming to trade on their behalf without proper documentation.
Investors should be cautious when promised high or guaranteed returns. Capital market investments involve risk, and no legitimate institution should present volatile products as risk-free. Leveraged transactions, derivatives, foreign exchange products and complex instruments may lead to rapid losses.
Before entering into an investment service relationship, investors should read the customer agreement, risk disclosure forms, commission schedule, custody terms and product documents. They should also keep written evidence of all instructions and communications.
If investors suspect unauthorized activity, they may consider filing a complaint with the CMB and seeking legal advice. In cases involving fraud, unauthorized trading or misappropriation of funds, criminal complaint and civil recovery options should also be assessed.
Liability Risks for Licensed Institutions
Licensed investment institutions may face liability if they breach regulatory duties. Common areas of liability include unauthorized transactions, unsuitable investment advice, failure to conduct suitability or appropriateness tests, misleading statements, failure to disclose risks, improper custody, inadequate record-keeping, order execution errors and conflicts of interest.
Administrative sanctions may be imposed by the CMB. Civil claims may be brought by investors. In serious cases, criminal liability may also arise. Therefore, investment institutions must treat compliance as a core business function, not as a back-office obligation.
Legal risk is especially high in volatile market periods. When investors suffer losses, they often examine whether the institution properly explained risks, documented instructions and acted within the customer’s profile. Strong compliance records can protect the institution; weak records may increase liability exposure.
Liability Risks for Unlicensed Persons
Unlicensed persons providing investment services face even more serious risks. A person who manages customer accounts, gives paid investment advice, transmits orders, promotes unauthorized forex platforms, collects money for investment purposes or operates an unlicensed trading platform may be accused of unauthorized capital market activity.
The CMB’s 2023 announcement on unauthorized leveraged transactions expressly warns that persons enabling unauthorized market activities, promoting or advertising them, or using bank accounts or telephone lines to facilitate such activities may be subject to criminal complaints for unauthorized capital market activity.
This means that liability may extend beyond the main platform operator. Intermediaries, promoters, influencers, payment facilitators, local representatives and persons collecting investor funds may also face legal exposure depending on their role.
Conclusion
Investment services in Turkey are subject to a strict licensing and regulatory regime under Capital Markets Law No. 6362 and CMB secondary legislation. The main rule is clear: regulated investment services and activities may only be provided by institutions authorized by the Capital Markets Board of Türkiye.
Investment services include order transmission, order execution, dealing on own account, portfolio management, investment advice, underwriting, placement, operation of certain trading systems and custody-related services. These activities are regulated because they directly affect investor assets, market integrity and public confidence.
For investment institutions, compliance requires more than obtaining a license. Institutions must maintain internal systems, customer protection procedures, documentation, record-keeping, suitability and appropriateness processes, risk disclosures, conflict management and employee training. They must also ensure that their activities remain within the scope of their CMB authorization.
For investors, the most important protection is to work only with authorized institutions and to avoid unlicensed advisors, social media investment groups, foreign platforms targeting Turkish residents without authorization and persons promising guaranteed returns. Investors should rely on official records, written documentation and professional legal advice when necessary.
For foreign institutions and fintech platforms, Turkish licensing rules must be analyzed before targeting Turkish clients. A foreign license does not automatically permit investment services in Turkey. Cross-border marketing, Turkish-language platforms, local client acquisition and digital investment advice may trigger Turkish capital market obligations.
In conclusion, investment services licensing in Turkey is a central pillar of investor protection and market integrity. Any person or institution intending to provide investment services in Turkey should obtain legal advice before commencing operations, applying for authorization, marketing to Turkish investors or launching digital financial services. Failure to comply with CMB licensing requirements may result in severe administrative, civil and criminal consequences.
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