> ## Documentation Index > Fetch the complete documentation index at: https://v2.docs.conduit.financial/llms.txt > Use this file to discover all available pages before exploring further. # Turkey > How to collect KYB documents from business customers in Turkey (TUR) when onboarding through the Conduit API. ## Overview | Field | Value | | ------------ | ---------------------------- | | Region | Asia (West, South & Central) | | ISO 3166-1 | TR / TUR | | Registry | MERSIS / Ministry of Trade | | Last updated | 2026-05-06 | ## Identifiers Collect two identifiers from each business customer in Turkey and submit them as strings on the application body. | API field | Local name | Issuer | | ------------------------------- | ------------------------------- | ------------------------------ | | `businessInfo.taxId` | **Vergi Kimlik Numarası (VKN)** | GİB (Gelir İdaresi Başkanlığı) | | `businessInfo.businessEntityId` | **MERSIS Numarası** | MERSIS / Ministry of Trade | *Tax ID:* 10-digit numeric; issued to all legal entities at tax office registration; appears on Vergi Levhası and official GİB portal. *Registration number:* 16-digit numeric; unique permanent company identifier assigned at incorporation; replaces earlier trade registry number for digital transactions. ## Sector regulators `BDDK` · `TCMB` · `SPK` · `SEDDK` · `MASAK` · `BTK` ## Legal structures | Local name | Abbreviation | Description | | ------------------------------------------ | ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Anonim Şirket | A.Ş. | Joint-stock company with freely transferable shares; minimum capital TRY 250,000 (Presidential Decree No. 7887, eff. 2024-01-01); governed by a board of directors (Yönetim Kurulu) and general assembly. Equivalent to a US C-Corp. | | Limited Şirket | Ltd. Şti. | Quota-based limited-liability company; 1–50 shareholders; minimum capital TRY 50,000 (Presidential Decree No. 7887, eff. 2024-01-01); managed by one or more Müdür; the dominant SME vehicle. Equivalent to a US LLC. | | Kollektif Şirket | — | General partnership in which all partners bear joint and unlimited personal liability for the company's obligations; no minimum capital requirement. Equivalent to a US General Partnership (GP). | | Komandit Şirket | — | Limited partnership with at least one general partner (komandite) bearing unlimited liability and at least one limited partner (komanditer) whose liability is capped at their contribution; capital is not divided into shares. Equivalent to a US Limited Partnership (LP). | | Sermayesi Paylara Bölünmüş Komandit Şirket | SpBKŞ | Partnership limited by shares; at least one general partner (komandite) with unlimited personal liability and limited partners whose participation is represented by shares; classified as a capital company under TCC Book II. Closest US equivalent: Limited Partnership (LP). | | Şahıs İşletmesi | — | Sole proprietorship operated by a single natural person; no separate legal personality; registered with the local chamber of commerce. Equivalent to a US Sole Proprietorship. | | Kooperatif Şirket | — | Cooperative company governed by Cooperatives Law No. 1163; requires minimum seven founding members; organized on the principle of mutual aid and democratic governance (one member, one vote). Closest US equivalent: Cooperative. | | Yabancı Şirket Şubesi | — | Branch of a foreign commercial company registered with the Turkish trade registry; no separate legal personality; must appoint a fully authorized local representative. Closest US equivalent: Branch/Rep Office. | ## How documents combine For each evidence area, this table shows whether the listed documents are alternatives (any one of) or a bundle (all required). The artifact-by-artifact lookup follows below. | Evidence area | Documents needed | | ---------------------- | -------------------------------------------------------------------------------------------- | | Legal Registration | Ticaret Sicil Tasdiknamesi | | Constitutive Documents | *Any one of:* Ana Sözleşme · Şirket Sözleşmesi | | Tax Registration | Vergi Levhası | | Operating Permit | İşyeri Açma ve Çalışma Ruhsatı | | Ownership Records | *Any one of:* Ortaklar Defteri · Pay Defteri | | Governance Records | *Any one of:* Yönetim Kurulu Üyeleri Listesi · Müdürler Listesi · Ticaret Sicil Tasdiknamesi | | Signing Authority | *Any one of:* İmza Sirküleri · Yönetim Kurulu Kararı · Müdür Kararı | | Address | *Any one of:* Kira Sözleşmesi · Fatura (elektrik/su/doğalgaz) · Banka Hesap Ekstresi | | Good Standing | Ticaret Sicil Tasdiknamesi | ## Documents to collect The physical documents you'll collect from your customer, with the evidence area each one proves. One document can prove multiple areas — for example, Brazil's Cartão CNPJ covers both tax and business-registration proof, so it appears once with both areas listed. | Document | Proves | | ----------------------------------------------------------- | --------------------------------------------------------------------------- | | **Ticaret Sicil Tasdiknamesi (Trade Registry Certificate)** | Legal Registration, Governance Records, Good Standing | | **Ana Sözleşme (A.Ş.)** | Constitutive Documents | | **Şirket Sözleşmesi (Ltd. Şti.)** | Constitutive Documents | | **Vergi Levhası** | Tax Registration | | **İşyeri Açma ve Çalışma Ruhsatı** | Operating Permit | | **Ortaklar Defteri (Partners Ledger — Ltd. Şti.)** | Ownership Records | | **Pay Defteri (Share Ledger — A.Ş.)** | Ownership Records | | **Yönetim Kurulu Üyeleri Listesi** | Governance Records | | **Müdürler Listesi** | Governance Records | | **İmza Sirküleri** | Signing Authority | | **Yönetim Kurulu Kararı** | Signing Authority | | **Müdür Kararı** | Signing Authority | | **Kira Sözleşmesi** | Address | | **Fatura (elektrik/su/doğalgaz) (≤90 gün)** | Address | | **Banka Hesap Ekstresi (≤90 gün)** | Address | | **Sector-Specific License** | Sector-specific license from BDDK, SPK License, SEDDK License, TCMB License | ### Collection notes * **Legal Registration:** Issued by affiliated chamber via MERSIS; includes MERSIS No. and registration details. * **Constitutive Documents:** Filed with and published in the Türkiye Ticaret Sicili Gazetesi (TTSG). * **Tax Registration:** GİB-issued; shows VKN (10-digit), entity type, and tax-office assignment. * **Operating Permit:** Municipal permit; required before operations commence; renewed periodically. * **Sector-Specific License:** Required only for regulated sectors; fintech/e-money requires TCMB payment institution license. * **Governance Records:** Current governing persons appear in MERSIS extract and Gazette publication. * **Signing Authority:** İmza Sirküleri is the standard bank/counterparty authorization artifact; board/manager resolution for specific transactions. * **Address:** Conduit universal policy: lease (no time bound) OR utility bill OR bank statement, with utility/bank dated within 90 days. Same evidence satisfies both registered-address and operating-address checks. * **Good Standing:** Turkey is a subsumed-by-extract jurisdiction: the dated Ticaret Sicil Tasdiknamesi issued via MERSIS serves as proof of current good standing; no separate certificate of good standing is issued by a distinct authority. ## Person roles When you submit a person on the application body, set their `role` to one of Conduit's canonical `BusinessPersonRole` values. Use this table to map a local corporate-governance title onto the right canonical role. | Local role | Canonical API role | Description | | ------------------------------------------------ | ---------------------- | --------------------------------------------------------------------------------------------- | | Yönetim Kurulu Üyesi (A.Ş. board member) | `CONTROLLING_PERSON` | Member of the Yönetim Kurulu (board of directors) in a joint-stock company. | | Yönetim Kurulu Başkanı (board chair) | `CONTROLLING_PERSON` | Chair of the Yönetim Kurulu; governance role. | | Genel Müdür (general manager) | `CONTROLLING_PERSON` | Executive appointed by board for day-to-day operations; often also legal representative. | | Müdür (Ltd. Şti. manager) | `CONTROLLING_PERSON` | Managing director of an Ltd. Şti.; responsible for daily operations and legal representation. | | Temsile Yetkili Kişi (authorized representative) | `LEGAL_REPRESENTATIVE` | Person authorized to legally bind the entity; listed in İmza Sirküleri. | | Vekil (attorney-in-fact / POA holder) | `LEGAL_REPRESENTATIVE` | Holder of a notarized Vekâletname authorizing them to act on behalf of the entity. | ## Notes * MERSIS vs. Trade Registry Number: older documents may show a legacy Ticaret Sicil Numarası (chamber-specific numeric). The MERSIS No. (16-digit) is the current universal identifier and is what GİB, banks, and customs require. Always collect the MERSIS No. * İmza Sirküleri is mandatory: Turkish banks and counterparties universally require the notarized İmza Sirküleri listing authorized signatories with specimen signatures. A resolution without a Sirküleri is typically insufficient. * Apostille Convention: Turkey is a Contracting Party to the Hague Apostille Convention (ratified; in force 29-IX-1985; e-Apostille system live at eapostil.gov.tr since 2019). Foreign documents destined for Turkish use and Turkish documents for foreign use can be apostilled rather than requiring full consular legalization.