> ## Documentation Index
> Fetch the complete documentation index at: https://docs.conduit.financial/llms.txt
> Use this file to discover all available pages before exploring further.

# Thailand

> How to collect KYB documents from business customers in Thailand (THA) when onboarding through the Conduit API.

## Overview

| Field | Value |
| - | - |
| Region | Asia-Pacific |
| ISO 3166-1 | TH / THA |
| Registry | DBD, Ministry of Commerce |
| Last updated | 2026-05-06 |

## Identifiers

Collect two identifiers from each business customer in Thailand and submit them as strings on the application body.

| API field | Local name | Issuer |
| - | - | - |
| `businessInfo.taxId` | **เลขทะเบียนนิติบุคคล** | DBD, Ministry of Commerce |
| `businessInfo.businessEntityId` | **เลขทะเบียนนิติบุคคล** | DBD, Ministry of Commerce |

*Tax ID:* 13-digit; digit 1 = entity type, digits 2–5 = province/office, digits 6–9 = Buddhist Era year, digits 10–12 = sequential ID, digit 13 = check digit. Identical to TIN for juristic persons.

*Registration number:* 13-digit; digit 1 = entity type, digits 2–5 = province/office, digits 6–9 = Buddhist Era year, digits 10–12 = sequential ID, digit 13 = check digit. Identical to TIN for juristic persons.

## Sector regulators

`BoT` · `SEC TH` · `OIC` · `BOI` · `AMLO`

## Legal structures

| Local name | Abbreviation | Description |
| - | - | - |
| บริษัทจำกัด (Private Limited Company) | Co., Ltd. / บจ. | Closely-held share-capital company with ≥2 shareholders; limited liability; shares restricted from public offering; governed by CCC Book III ss.1096–1297. Equivalent to a US LLC. |
| บริษัทมหาชนจำกัด (Public Limited Company) | PCL / บมจ. | Share-capital company whose shares may be publicly offered and listed; stricter governance and disclosure under the Public Limited Companies Act B.E. 2535 (1992). Closest US equivalent: C-Corp. |
| ห้างหุ้นส่วนจำกัด (Limited Partnership) | LP / หจก. | One or more general partners with unlimited liability plus one or more limited partners; registered juristic person under DBD. Closest US equivalent: LP (Limited Partnership). |
| ห้างหุ้นส่วนสามัญจดทะเบียน (Registered Ordinary Partnership) | — | All partners jointly and unlimitedly liable; acquires separate juristic personality upon DBD registration; taxed as a corporate entity. Closest US equivalent: GP (General Partnership). |
| ห้างหุ้นส่วนสามัญ (Unregistered Ordinary Partnership) | — | Two or more persons conducting business together with all partners bearing unlimited liability; no separate legal personality; income taxed at individual level. Closest US equivalent: GP (General Partnership). |
| ทะเบียนพาณิชย์ (Sole Proprietorship / Commercial Registration) | — | Individual trading registration under the Trade Registration Act; no separate legal entity; owner bears unlimited personal liability; registered with local District Office or DBD. Equivalent to a US Sole Proprietorship. |
| Branch of Foreign Company | Branch | Foreign entity operating in Thailand through a registered branch; not a separate legal entity from the parent; subject to the Foreign Business Act B.E. 2542 (1999); registered with DBD. Closest US equivalent: Branch/Rep Office. |
| Representative Office of Foreign Company | Rep Office | Non-revenue-generating liaison office of a foreign company; limited to support activities such as sourcing, quality control, and market research; registered with DBD under the Foreign Business Act B.E. 2542 (1999). 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 | หนังสือรับรอง |
| Constitutive Documents | *All required:* หนังสือบริคณห์สนธิ + ข้อบังคับ |
| Tax Registration | *Any one of:* TIN Certificate · VAT Certificate ภ.พ.20 |
| Operating Permit | ใบอนุญาตประกอบธุรกิจ |
| Ownership Records | บัญชีรายชื่อผู้ถือหุ้น |
| Governance Records | *All required:* หนังสือรับรอง + Director Appointment Minutes |
| Signing Authority | *Any one of:* มติที่ประชุมคณะกรรมการ · หนังสือมอบอำนาจ |
| Address | *Any one of:* สัญญาเช่า · ใบแจ้งหนี้ค่าสาธารณูปโภค · รายการเดินบัญชี |
| Good Standing | หนังสือรับรอง |

## 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 |
| - | - |
| **หนังสือรับรอง (Company Affidavit / DBD Certificate)** | Legal Registration, Governance Records, Good Standing |
| **หนังสือบริคณห์สนธิ (MoA)** | Constitutive Documents |
| **ข้อบังคับ (AoA)** | Constitutive Documents |
| **TIN Certificate (Revenue Department)** | Tax Registration |
| **VAT Certificate ภ.พ.20** | Tax Registration |
| **ใบอนุญาตประกอบธุรกิจ (activity-specific; local District Office or Ministry)** | Operating Permit |
| **บัญชีรายชื่อผู้ถือหุ้น (Form บอจ.5)** | Ownership Records |
| **Director Appointment Minutes** | Governance Records |
| **มติที่ประชุมคณะกรรมการ (Board Resolution)** | Signing Authority |
| **หนังสือมอบอำนาจ (Power of Attorney)** | Signing Authority |
| **สัญญาเช่า** | Address |
| **ใบแจ้งหนี้ค่าสาธารณูปโภค (ภายใน 90 วัน)** | Address |
| **รายการเดินบัญชี (ภายใน 90 วัน)** | Address |
| **Sector-Specific License** | BoT licence (banking/payment), SEC TH licence (securities/fund/digital asset), OIC licence |

### Collection notes

* **Legal Registration:** Issued by DBD; downloadable from encert.dbd.go.th or DBD Biz Regist. Lists registration number, directors, address, status. English version available from DBD portal.
* **Constitutive Documents:** Filed at incorporation and stored with DBD. For PCL, equivalent documents filed under Public Limited Companies Act B.E. 2535.
* **Tax Registration:** TIN equals DBD registration number. VAT certificate (ภ.พ.20) issued only after VAT registration; collect both if VAT-registered.
* **Operating Permit:** Thailand has no single universal operating permit; DBD registration serves as baseline. Activity-specific permits (food, hotel, factory, etc.) issued by relevant authority. Collect whichever applies to the entity's declared activity.
* **Sector-Specific License:** Financial entities must hold the relevant regulator's licence. Payment service providers require BoT licence under Payment Systems Act B.E. 2560 (2017).
* **Ownership Records:** Form บอจ.5 filed with DBD at each AGM.
* **Governance Records:** DBD Certificate lists current authorised directors and signing conditions. Changes notified to DBD within 14 days (CCC s.1157).
* **Signing Authority:** Notarised PoA required for delegation outside the board.
* **Address:** Lease (no freshness requirement) or utility bill or bank statement dated within 90 days. Same document satisfies both registered-address and operating-address verification.
* **Good Standing:** Thailand's DBD does not issue a separate Certificate of Good Standing. The หนังสือรับรอง (Company Affidavit) is issued on-demand from the live DBD registry and carries the entity's current registered status, directors, address, and capital — Thai banks accept it as the live attestation. Request an Affidavit dated within 30 days, ordered via DBD e-Service, DBD office branches, or partner-bank e-Certificate services.

## 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 |
| - | - | - |
| กรรมการ (Director) | `CONTROLLING_PERSON` | Member of the board with day-to-day authority; signing conditions specified in DBD Certificate. |
| กรรมการผู้จัดการ (Managing Director) | `CONTROLLING_PERSON` | Director delegated operational management; highest executive role. |
| ผู้จัดการ (Manager — partnership) | `LEGAL_REPRESENTATIVE` | Authorised manager of a registered partnership; binds the entity. |
| ผู้รับมอบอำนาจ (Attorney-in-fact / PoA holder) | `LEGAL_REPRESENTATIVE` | Holder of notarised หนังสือมอบอำนาจ with authority to bind the company. |

## Additional fields

Country-specific fields you'll need to collect during onboarding, beyond the document uploads.

| Field | Applies to | Reason |
| - | - | - |
| `3-month personal bank statement` | shareholder | DBD Order 2/2568 (eff. 2026-01-01) requires Thai shareholders to evidence share-payment funds when a foreign director or shareholder is present. |

## Notes

* The 13-digit DBD registration number and the Revenue Department TIN are the same number for juristic persons — do not collect them as two separate documents; one certificate confirms both.
* The Foreign Business Act B.E. 2542 deems a company "foreign" when ≥50% of shares are held by non-Thais. In restricted List 2/3 sectors this triggers FBL requirements or BOI promotion. Integrators must verify the actual shareholder nationality breakdown, not just the registered capital split.
* DBD Biz Regist became the mandatory filing platform from 2026-01-01; all newly issued corporate documents will be electronic. Certified paper affidavits issued before this date remain valid; accept both formats but note the transition.
* Thailand acceded to the Hague Apostille Convention (Cabinet approval 2025-12-09) but the Convention is not yet in force as of 2026-05-06 (pending deposit + \~6-month lead). Until entry into force, cross-border documents still require embassy/consular legalisation.


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