Thailand Sourcing Office Setup: Representative Office, TISO, or IPO?

Define the real office task

Start with a transaction map, not a proposed office name. Identify the goods, the buyer, the seller, the party that places each purchase order, who owns inventory at each point, who pays whom, who receives a sourcing fee, and whether a Thai person will negotiate or close local sales. These facts show whether the team will only inform the foreign parent, provide an eligible service, or trade and handle stock.

A representative office is an extension of a foreign juristic person, not a new Thai limited company. The DBD’s July 2025 foreign-business Q&A describes a representative or regional office for an international-trade business as a service business exempt from FBA permission under Ministerial Regulation No. 3 B.E. 2560. It also says that an activity outside the defined representative-office category can require permission if it falls in an FBA list. The exemption is therefore scope-specific ; it does not convert every sourcing or sales team into a representative office.

The words “sourcing support” can hide very different work. Finding candidate suppliers for a parent and reporting product information is closer to representative support. Providing eligible procurement information or another BOI-listed service may fit TISO. Buying, receiving, controlling, and reselling manufacturing inputs is a trading flow that should be screened against IPO conditions, foreign-business rules, customs requirements, and any product controls.

Compare representative office, TISO, and IPO

The table compares the operating mandate, legal vehicle, commercial flow, and strongest disqualifier. It keeps two unlike money tests separate: TISO’s annual expense threshold and IPO’s paid-up capital requirement.

The BOI Investment Promotion Guide 2026 classifies TISO and IPO under separate activity codes and Group B. TISO’s THB 10 million figure is an annual expense floor, not paid-up share capital. IPO’s THB 10 million figure is paid-up registered capital, not an annual budget. Neither threshold alone proves that the operating model fits or guarantees a certificate.

TISO covers listed service activities; the 2026 Guide excludes specified advisory fields such as securities, foreign-exchange, accounting, legal, advertising, architecture, and civil engineering services. Machinery-related work has its own limits, including products manufactured by an associated enterprise or officially authorized by the manufacturer. TISO is not a blanket authorization to buy any product, sell to any customer, or perform a restricted activity outside the approved project.

For IPO, the goods must be inputs used in manufacturing, not finished items ready for ordinary use. The project needs a warehouse and a dedicated warehouse-management system, procurement and handling work such as quality inspection or packaging, several procurement sources including a domestic source, and domestic wholesale and/or overseas exports. The application should identify goods, suppliers, customers, system, and warehouse flow.

Follow the transaction boundary

A sourcing project changes character at the points where someone negotiates, contracts, owns stock, or receives money. Trace each step from supplier discovery to buyer payment. Start with the local party that owns and trades the goods; if it does not, screen its service income and parent-support mandate.

Use the representative-office lane only when the parent or group receives the support, the Thai office does not earn service income, and no one in Thailand accepts purchase orders, offers goods for sale, or negotiates business with customers. Parent funding for local expenses is not the same as a service fee. A local purchase or resale flow should not be hidden inside the representative-office name.

Use TISO analysis when the local entity will provide a BOI-listed service such as goods-sourcing information and can support the required annual expenses and business plan. Use IPO analysis when it will procure eligible inputs, manage warehouse inventory, undertake suitable goods handling, and sell through an allowed channel. A combination of service and trading activity may require separate BOI scopes and distinct records; do not describe everything as “procurement services” to avoid examining each activity.

Keep the functions of each party visible in the contracts and evidence. If the foreign parent remains the buyer and owns the goods, a Thai support office may be doing market research; if the Thai company purchases goods in its own name and resells them, it is doing a different commercial job. The legal form should follow transaction ownership , not the team’s internal title.

Resolve the representative-office approval question

A live source conflict makes this step important. A BOI English background page last updated 27 September 2011 still says representative offices need permission under FBA List 3(21) and shows a THB 3 million minimum investment rule. DBD’s later July 2025 foreign-business Q&A says a foreign juristic person’s representative or regional office for the specified international-trade-office category is exempt from FBA permission under Ministerial Regulation No. 3 B.E. 2560. The DBD representative-office dataset gives the same exemption direction. Do not use the old BOI page by itself to budget an FBL fee or decide that a new license is required.

The official DBD online-services page separately lists e-Foreign Business and e-foreign services. Those labels point to different work: a foreign business license or certificate is not the same as identifying/registering a foreign juristic person or setting up a representative office. Confirm the exact DBD workflow with the Foreign Business Administration Division; do not submit an FBC application merely because the term “foreign business” appears on a portal.

The capital question deserves separate advice. Thailand’s 2019 minimum-capital regulation sets general amounts for foreign business commencement, while the DBD Q&A explains an FBA-permission exemption for a defined representative-office category. The two rules address different gates. The safest file records the intended office category, the regulation relied on for FBA permission, the DBD registration evidence, the exact remittance instruction received, and the person responsible for annual accounting and tax filings.

No office label protects activity that exceeds its legal scope. If local staff start earning a fee, taking purchase orders, selling to Thai customers, or managing third-party transactions, pause that work and obtain a fresh FBA and licensing analysis before the contract or first invoice is issued.

Sequence the setup and first shipment

Work in this order so that the office design, parent authority, funding, and first commercial transaction support the same legal route.

1. Write the transaction map. List goods, supplier and customer countries, contracting party, invoice issuer, inventory owner, service-fee recipient, office staff duties, and expected customs or product steps.
2. Select the office lane. Keep a representative office for qualifying parent-only support; choose TISO only for a listed BOI service scope; test IPO for manufacturing inputs, warehouse handling, and the specified sales flow.
3. Confirm the legal person and DBD work. A representative office is attached to the foreign parent; TISO and IPO projects generally proceed through a BOI applicant company. If a Thai entity is part of the plan, align the incorporation record and shareholders with the chosen activity before filing.
4. Prepare the route-specific evidence. For a representative office, confirm parent authority, permitted functions, office address, funding, and staff responsibilities with DBD. For TISO, document the business plan, listed service, and projected expenses. For IPO, add products, sourcing sources, buyer countries, warehouse, IT system, quality control, and packaging.
5. Submit in the correct channel and wait for the decision. BOI applications go through e-Investment; do not begin a BOI-promoted activity merely because the application was submitted.
6. Close the non-BOI workstreams. Confirm FBA scope or permission, registration number, capital remittance, tax and accounting, customs, premises use, product approvals, bank onboarding, and work authorization as applicable before the first purchase order or shipment.

The 2026 BOI Guide gives general application-evaluation periods of 40, 60, or 90 working days after complete documents, based on the investment value bands. These are BOI project-review periods, not total setup time, and not applicable to a simple DBD representative-office registration. They do not include preparation, correction requests, company formation, a separate FBA decision, customs work, bank checks, or visas. Wait for each required certificate or registration output before treating that track as complete.

For Thai entity setup, place the chosen activity beside Thailand company registration requirements and ensure the company record, shareholder plan, and signed documents are consistent. Incorporation records do not grant BOI promotion, and a BOI resolution does not automatically register the company or clear every product, premises, or foreign-business requirement.

The DBD’s online-services menu lists separate services for the foreign-business permission/certificate process and foreign-juristic-person registration. Use the current DBD online-services page to locate the applicable system, then confirm the filing type with the authority before uploading parent documents or paying a fee. Keep the filed scope, agency decision, business contracts, and invoices together so a later review can compare the proposed route with actual activity.

A sourcing office reaches an operating “go” point only when its legal presence, authority to perform the work, counterparty flow, premises, goods, and staff permissions all match the actual first transaction. A filed application is a milestone, not the authority to start a restricted activity.

Select the route for your actual plan

Choose a representative office if the team only researches, liaises, and supports its foreign parent or group within a non-revenue mandate. Choose TISO if the Thai operation provides a specified service, including a relevant sourcing-information scope, and can meet the THB 10 million annual expense condition. Choose IPO if the company will source eligible inputs, manage them in a qualifying warehouse, perform product-handling work, and trade through wholesale and/or export channels with THB 10 million paid-up registered capital.

Before relying on a representative-office FBA exemption, confirm that the proposed office fits the international-trade-office category in DBD’s later guidance, and verify its registration, capital, reporting, and employment steps separately. If its work crosses into fee-earning services, contract negotiation, local purchase orders, goods ownership, or sales, reclassify the project before it acts.

A neutral next question is whether your group needs only a local market-information desk or a local operating counterparty. For the wider presence decision, review foreign-company presence options for a Thailand market entry ; the sourcing function and entity choice should be planned together, but the article does not replace the BOI or DBD classification for a particular activity.

The plan is ready for filing when each operating step has an identified legal person, contract role, stock owner, funding path, and source of authority. Choose by what the office will do on its first real purchase order, invoice, and shipment .