Trademark Registration in Thailand 2026 for US and Foreign Brands: Fast Track 4 Month Plus+, Madrid vs Direct Filing, and the First-to-File Rule

Key takeaways

• Since 1 January 2026 Thailand's Department of Intellectual Property (DIP) has offered Fast Track 4 Month Plus+, which gives qualifying e-commerce sellers a first examination result within four months of filing.
• The standard route takes roughly 12 to 18 months from filing to certificate, of which examination accounts for about 6 to 11 months.
• The conditions are strict: one class, no more than 10 goods or services taken word for word from the Trademark Office's list, electronic filing, every document including the notarized power of attorney on file from day one, no extensions and no amendments.
• The fast track is closed to Madrid Protocol designations. A US brand can reach Thailand through Madrid, but only a direct Thai filing can be expedited.
• Thailand is a first-to-file country. Years of use in the United States, or a USPTO registration, give no rights in Thailand.
• A Thai registration lasts 10 years and is renewable. A mark that has not been used for three consecutive years can be cancelled on a third party's petition.
• Thailand remains on the US Trade Representative's Special 301 Watch List in 2026, with counterfeit goods still easy to find online. Registration is what the enforcement tools run on.

If your company plans to sell in Thailand, or your products are already listed on a Thai marketplace, one change in 2026 deserves attention.

From 1 January 2026 the DIP has run an accelerated examination route called Fast Track 4 Month Plus+. A qualifying applicant receives the first examination result within four months of filing, against the 6 to 11 months that examination takes on the standard route.

The route was built for online sellers. A brand that sells through platforms often needs proof of its trademark position within weeks, whether to open an official store, to join a platform's brand-protection programme or to have a counterfeit listing taken down. Waiting more than a year for an examiner does not fit that timetable.

This guide explains the conditions of the new route, how it compares with the standard procedure, the choice a US company has to make between the Madrid Protocol and a direct Thai filing, and the points on which Thai trademark law differs most from what US brand owners are used to. It reflects Thai law and DIP practice as of November 2026.

1. Fast Track 4 Month Plus+: who qualifies and on what conditions

The route is open to individuals and companies that do business through online platforms. Thai practitioners read the term broadly: it covers a business in any industry that sells over the internet. It builds on the DIP's earlier six-month and four-month fast-track routes and adds e-commerce use as the qualifying condition.

The speed is paid for with formal requirements. In practice most applications that fall out of the fast track do so because one condition was missed, not because anything is wrong with the mark.

• Electronic filing only. The application goes through the DIP's online system. Paper and counter filings do not qualify.
• A stated need for online sales. The applicant explains why the registration is needed for sales through online platforms and supports it, for example with a business plan or a marketing plan.
• Proof of a prior search. The application includes evidence of a search in three databases: the Thai Trademark Office's own database, TMview and the WIPO Global Brand Database.
• One class per application. A brand that needs several classes files several applications.
• No more than 10 items. An eleventh good or service takes the application off the fast track.
• Items copied from the official list. Every good or service must match an entry in the Trademark Office's guideline list exactly. Wording you draft yourself disqualifies the application.
• Everything on file at the start. All supporting documents, including the power of attorney, are filed with the application. No extension of time is available.
• No amendments. Changing the list of goods or services, recording an assignment or recording a change of name or address moves the application to the ordinary track.
• Ordinary marks only. Words, letters, numerals, logos and combinations of them qualify, as trademarks or service marks. Colour combinations, three-dimensional marks, sound marks, certification marks and collective marks do not.
• An undertaking on priority. The applicant accepts that the examiner may withdraw the application or registration if a third party later establishes an earlier foreign priority date.

The Trademark Office tells the applicant whether the application has been accepted for the fast track within about 15 days of filing. One that does not meet the urgency requirement is examined on the ordinary timetable and may still qualify for the six-month route.

Three of these conditions cause most of the trouble for foreign applicants.

The official list comes first. A US company usually arrives with an identification of goods that the USPTO accepted. That wording was written for a different office. If the Thai list has no entry that matches your product, as often happens with new product types or unusual specifications, the application cannot use the fast track at all.

The power of attorney comes second. A foreign applicant needs a notarized power of attorney for its Thai agent, and on this route it must be filed with the application. Have it signed and notarized in the United States before the filing date is fixed, not after.

The ban on amendments comes third. On the standard route it is common to file early to secure a date and tidy up later. Here the filing strategy has to be final before anything is submitted. The four months are earned by preparation.

A US seller with a Thai-facing storefront also has a second compliance question that arrives with the first order: Thailand's data protection law applies to foreign sellers who offer goods to people in Thailand. That is covered in Thailand PDPA Compliance 2026: What the First THB 21.5 Million in Fines Means for Foreign Companies, Cross-Border Transfers to Head Office, SCC and the New BCR Rules .

2. Timeline: the standard route and the fast track compared

What the route accelerates is the first examination result, not the whole procedure. The opposition period and the time allowed for answering an objection are unchanged. If the examiner raises an objection, or a third party opposes after publication, the overall timetable can still stretch.

For an online seller the first result often has commercial value by itself. Several platform brand-protection programmes work from the details of a pending application and do not insist on a registration certificate. An official examination result that arrives several months earlier is frequently enough to unlock those tools before a peak sales season.

3. Madrid or a direct Thai filing: the choice a US brand has to make

The Madrid Protocol has applied in Thailand since 7 November 2017, and the United States has been a member since 2 November 2003. A US company with a USPTO application or registration can therefore file one international application through WIPO and designate Thailand along with other countries. It can also ignore Madrid and file directly with the DIP through a Thai agent. The two routes lead to the same Thai rights but behave very differently on the way.

Three consequences follow for a US applicant.

Madrid is not a shortcut through Thai examination. A designation is examined under the same substantive law as a national application, but none of the fast-track routes applies to it, and Thailand has reserved 18 months in which to issue a provisional refusal. Thai practitioners report that a designation can stay pending longer than a comparable direct filing.

Expect questions about the goods. Thai examiners regularly treat wording that another office accepted as too broad or unclear, and a Madrid designation can be narrowed in Thailand but never widened beyond the US basic mark. WIPO figures cited by Thai practitioners show an estimated 9,149 designations of Thailand in 2025 and 8,272 provisional refusals issued by Thailand in the same year. Those two numbers are not a refusal rate, but they show that a provisional refusal is a normal part of the process. Answering one requires a Thai agent with a notarized power of attorney, within 90 days of the date the DIP issues the refusal.

The Thai protection depends on the US filing for five years. If the US basic application or registration is refused, narrowed or cancelled within five years of the international registration date, the Thai designation falls to the same extent. This matters most for a US application filed on an intent-to-use basis that has not yet matured. The holder can convert the lost designation into a Thai national application within three months and keep the original date, but that means paying for the national route after all.

So which route fits?

• Madrid suits a brand that is filing in many countries at once, has clear and conventional goods, already holds a secure US registration and is in no hurry in Thailand.
• A direct filing suits a brand for which Thailand is a priority market, one that is about to sell online and wants the fast track, one that needs goods or services described differently from its US identification, and one that wants to register something that has no US counterpart, such as the Thai-script version of the brand name.

A direct filing does not give up the US date. Thailand is a party to the Paris Convention, so a Thai application filed within six months of the first US filing for the same mark can claim that filing as its priority date.

4. What US brand owners most often get wrong

The differences that matter can be put side by side.

Waiting until the product has launched

In Thailand trademark rights belong, in principle, to whoever files first, not to whoever used the mark first. A long record of use in the United States does not by that fact protect the brand in Thailand. Thai law does keep a passing-off action for unregistered marks, but it depends on proving a reputation in Thailand and is no substitute for a registration.

The costly pattern is a familiar one. A foreign brand gains a following in Thailand, and only then discovers that someone else, sometimes a former distributor, filed for the mark first. Opposing the application, petitioning to cancel a registration or negotiating to buy the mark back all cost far more than an early filing would have. Cancelling the other party's registration for non-use is harder than it sounds, because the party asking for cancellation has to prove the non-use.

The same distributor often holds something else the brand needs: the Thai FDA registrations for the products, which belong to the importer that filed them and not to the brand. See Thai FDA Approval 2026: How a US or Foreign Brand Gets Food, Dietary Supplements, Cosmetics and Medical Devices Registered in Thailand, Timelines, Penalties and Document Legalisation .

The right time to file is before the product enters the Thai market.

Assuming the US registration reaches Thailand

Trademark rights are territorial. A USPTO registration has effect in the United States only. Takedown requests and brand programmes on Thai marketplaces are also much easier to run with a Thai filing number than with a US certificate.

Registering goods and forgetting services

Thailand follows the Nice Classification. Goods and services fall in different classes, each class is charged separately, and each fast-track application covers one class only. A company that sells a product and also provides repair, consulting or an online platform under the same brand may find that a goods-only registration does not cover what it actually does.

Treating enforcement as someone else's problem

The US Trade Representative's 2026 Special 301 Report keeps Thailand on the Watch List. It credits the DIP and the Thai police with an action plan against counterfeit and pirated goods and notes good working relationships between right holders and Thai Customs, but it also records that counterfeit goods remain readily available, particularly online. Police raids, customs seizures and platform takedowns all start from the same document: a Thai registration, or at least a Thai application, in the brand owner's name.

5. Other schemes and changes in 2025 and 2026

Seasonal schemes. The DIP has run short-term accelerated schemes in recent years, including a New Year scheme that promised a first result within three months for applications filed between 15 December 2025 and 31 January 2026. These are temporary. If your filing date happens to fall inside one it is worth using, but it is not something to plan around.

Electronic certificates for Madrid registrations. Under a format in force since 15 August 2025, the DIP issues registration certificates and replacement certificates for international registrations protected in Thailand in electronic form only. The certificate carries a QR code for verification and has the same legal effect as a paper certificate. A US holder that reached Thailand through Madrid receives this version; certificates for direct national filings are still issued on paper.

6. After registration: renewal and use

Registration is not the end of the work.

Term and renewal. A Thai registration is valid for 10 years and can be renewed for further 10-year periods without limit. Renewal can be filed within the three months before expiry. After expiry there is a six-month grace period, with a surcharge of 20% of the official renewal fee.

Cancellation for non-use. A registered mark that has not been used for three consecutive years can be cancelled on the petition of a third party. There is no declaration of use to file, so nothing prompts the owner to check. Keep sales invoices, packaging, advertising and dated screenshots of marketplace listings, and file them away at regular intervals. This matters most for a brand that registered defensively and has not yet started selling in Thailand.

7. Four recommendations for foreign brand owners

Search first, then decide. A search of the DIP database for similar marks costs little and avoids finding the obstacle after filing. On the fast track a three-database search is a filing requirement in any case.

Choose the route for Thailand separately. Madrid may be right for the rest of your portfolio and wrong for the one market where you are about to open an online store. For a seller on Shopee, Lazada or TikTok Shop, the difference between four months and a year can decide whether the official store opens before the peak season.

Finish the preparation before filing. With no extensions and no amendments, the list of items, the supporting plan, the search evidence and the notarized power of attorney all have to be right on the first day.

Decide who owns the mark. The applicant should be the brand owner, normally the parent company, and never the Thai distributor. Where the business will run through a joint venture, the shareholders' agreement should say that the mark is licensed to the venture and stays with its owner if the venture ends; see Joint Ventures and Shareholders' Agreements in Thailand 2026: Where Lawful Protection Ends and a Nominee Structure Begins under the New DBD Checks . Where you are setting up your own Thai company to sell under the brand, the structure and the foreign ownership limits are in Setting Up a Company in Thailand 2026 for Foreign Investors: The 49% Rule, Nominee Shareholder Risk, Capital and Work Permit Ratios, BOI and the New DBD Checks .

The shape and packaging of the product, and the technology inside it, are protected separately as designs and patents, and the rules on disclosure before filing are much stricter than for trademarks. See Thailand Patent Guide 2026: Invention Patents, Petty Patents and Designs for US and Foreign Companies, PCT Entry, Fast-Track Options and the Draft Patent Act .

Frequently asked questions (FAQ)

How long does trademark registration take in Thailand in 2026?

On the standard route, about 12 to 18 months from filing to certificate, of which examination takes about 6 to 11 months. An objection or an opposition can stretch that to 24 to 30 months. Under Fast Track 4 Month Plus+, available since 1 January 2026, a qualifying application receives its first examination result within four months, and an application that meets no objection and no opposition can be registered in about six to seven months. Only the first examination is accelerated; the 60-day opposition period and the time for answering an objection are the same.

Who can use Fast Track 4 Month Plus+, and what are the conditions?

Individuals and companies that sell through online platforms. The application must be filed electronically, explain why registration is needed for online sales, include evidence of a search in the Thai Trademark Office database, TMview and the WIPO Global Brand Database, cover one class and no more than 10 items, and use item descriptions that match the Trademark Office's list exactly. All documents, including the power of attorney, are filed at the start. No extension and no amendment is allowed. Colour, three-dimensional and sound marks, and certification and collective marks, are excluded.

Can a US company use the Madrid Protocol to protect its mark in Thailand?

Yes. The Protocol has applied in Thailand since 7 November 2017 and the United States is a member, so a US company can designate Thailand in an international application based on its USPTO application or registration. The limits are practical: the designation cannot use any fast-track route, Thailand has up to 18 months to issue a provisional refusal, the goods cannot be wider than the US basic mark, and for five years the Thai protection depends on that US mark.

Should a US brand file through Madrid or directly in Thailand?

File directly if Thailand is a priority market, if you are about to sell online and want a result in four months, if the Thai list of goods needs to differ from your US identification, or if you want to protect a Thai-script version of the name. Use Madrid if you are covering many countries at once, your goods are conventional, your US registration is secure and timing in Thailand is not critical. A direct filing made within six months of the first US filing can still claim the US date as its priority date.

My mark is registered with the USPTO. Is it protected in Thailand?

No. Trademark rights are territorial, and a USPTO registration has effect only in the United States. Thailand is also a first-to-file country, so use in the United States, however long, does not prevent someone else from filing for the same mark in Thailand. Brands that wait until they are known in Thailand sometimes find that the mark has already been taken, and recovering it through opposition, cancellation or a buy-back costs far more than filing early.

Do I have to prove use to register or keep a Thai trademark?

Not to register. Thailand does not ask for use, or for a declaration of intent to use, at filing, and there is no declaration of use to file afterwards. But a mark that has not been used for three consecutive years can be cancelled on a third party's petition. Keep invoices, packaging, advertising and dated screenshots of listings as evidence. The registration lasts 10 years and is renewed in the three months before expiry, or within six months after it with a 20% surcharge.

Do I need a Thai agent, and what documents are required?

Yes. A foreign applicant with no place of business in Thailand acts through a Thai agent under a notarized power of attorney. The application is filed in Thai; the mark can be in English or any other script, but the form and the list of goods or services are in Thai. The list is the part to get right: wording that departs from the Trademark Office's list invites an objection and rules out the fast track.

How Louis Group can help

In Thailand the trademark is often the first thing a foreign brand needs and the last thing it deals with. Product specifications, sales channels, pricing and the company structure all come first, and the trademark is left until the product is selling. Squatters tend to notice that a brand is taking off before the brand does.

Louis Group's Bangkok office works with Thai-qualified lawyers on trademark searches and registrability opinions, direct filings and fast-track eligibility, responses to provisional refusals of Madrid designations, oppositions, the recovery of marks registered by third parties, and brand ownership and licensing terms in distribution and joint venture agreements. We recommend completing the trademark assessment before the product is listed.

Author: Dr. Yvonne Wei (Arisa Pailinsiri) , Senior Partner, Louis & Partners Thailand.

This article is general information based on Thai law and DIP practice as of November 2026 and is not legal advice on any particular case. The conditions and scope of the DIP's accelerated examination routes can change, and seasonal schemes are not permanent. Check the latest DIP announcements and consult a qualified Thai trademark agent before filing.

Related reading

• Setting Up a Company in Thailand 2026 for Foreign Investors: The 49% Rule, Nominee Shareholder Risk, Capital and Work Permit Ratios, BOI and the New DBD Checks
• Joint Ventures and Shareholders' Agreements in Thailand 2026: Where Lawful Protection Ends and a Nominee Structure Begins under the New DBD Checks
• Thailand PDPA Compliance 2026: What the First THB 21.5 Million in Fines Means for Foreign Companies, Cross-Border Transfers to Head Office, SCC and the New BCR Rules