> ## 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.

# 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.