Every DTV Visa application requires a declared qualifying activity. Thailand calls this the Soft Power framework, a signal that you are coming to engage with Thai culture, sport, or expertise, not just to use the country as a cheap base. The six recognised categories range from remote work to Muay Thai to medical treatment. This guide covers each one in full: exactly what the embassy wants to see, what the letter must contain, and where to get it.
What Soft Power Means for Your Application
The Soft Power framework was introduced alongside the DTV Visa as part of Thailand’s cultural diplomacy strategy. In practical visa terms, it refers to a specific list of approved activities that justify an extended stay beyond tourism. You are not just visiting, you are staying to train, study, receive treatment, or work in a way that involves genuine engagement with Thailand.
Your declared activity becomes the basis for your supporting documentation. The activity does not have to fill every hour of your stay. Training Muay Thai three mornings a week while working remotely the rest of the time is a completely legitimate arrangement. What matters is that the declared activity is genuine and documentable with a specific, credible letter.
| Activity category | Primary document required | Key detail |
|---|---|---|
| Remote work / freelancing | Employer letter or client contracts | Must confirm remote work is permitted from international locations |
| Muay Thai training | Gym enrollment letter | SAT-registered or any registered Thai gym; official stamp and letterhead required |
| Thai cooking classes | School enrollment confirmation | Must be from a registered Thai culinary business |
| Thai language study | School enrollment letter | School should be Ministry of Education registered |
| Yoga / wellness | Programme participation letter | Provider must be a registered Thai business |
| Medical treatment | Hospital treatment letter | Appointment or treatment plan from a registered Thai hospital or clinic |
Activity 1: Remote Work and Freelancing
Remote Work / Freelancing
Remote work is the most commonly declared DTV activity, because it applies to the largest number of applicants: employees whose companies allow remote working, freelancers with international clients, and independent contractors working across borders. The core principle is that your income comes from outside Thailand, you work for entities that are not Thai-registered, and your work output does not serve the Thai market.
- A letter from your employer on official company letterhead confirming that you are employed, that you work remotely, and that you are permitted to work from international locations including Thailand
- Your employment contract, at minimum excerpts showing your role and location flexibility
- Recent payslips (optional but strengthens the application)
- Active client contracts or service agreements with clients based outside Thailand
- Invoices from the past 3–6 months showing regular, international income
- A professional website or portfolio demonstrating your field of work
- A self-declaration letter explaining your business model and client base
- Accountant’s letter or profit-and-loss statement for the past 12 months (strongly recommended for self-employed applicants)
The employer letter is the critical document for salaried employees. It must state clearly that your work is performed remotely and that working from Thailand is specifically permitted. A letter that simply confirms employment without mentioning location flexibility is insufficient.
For the full treatment of the work permit question and tax implications, see Working on a DTV Visa: Remote Work, Tax & the Rules.
Activity 2: Muay Thai Training
Muay Thai Training
Muay Thai is explicitly central to Thailand’s Soft Power initiative and is one of the most straightforward activity categories to document because it involves a specific institution issuing a formal enrollment letter. You need an enrollment letter from a registered Muay Thai gym in Thailand. No prior training experience is required, you are enrolling to learn, not competing professionally.
- The gym’s name, address, and contact details on official letterhead
- Your full name exactly as it appears in your passport
- Your passport number
- The name of the training programme you are enrolling in
- The intended duration of your training
- The gym’s SAT registration or official Thai business registration number (if available)
- The authorised signatory’s name and signature
- The gym’s official stamp
The official bodies overseeing Muay Thai in Thailand are the Sports Authority of Thailand (SAT) and the Board of Boxing Sport under the Ministry of Tourism and Sports. A gym registered with or endorsed by these bodies carries the most formal weight. FITFAC (Fitfac Muaythai Academy) is a commercial gym chain, not a governing body, and FITFAC membership is not a DTV requirement. What matters is that the gym is a registered Thai business that can issue an official letter on letterhead with a stamp.
Gyms across Bangkok, Pattaya, Chiang Mai, and Phuket with proven DTV documentation experience are covered in the dedicated Muay Thai DTV Route guide.
Activity 3: Thai Cooking Classes
Thai Cooking Classes
Thai cuisine is internationally recognised and sits at the heart of the Soft Power initiative. Enrolling in a Thai cooking programme is one of the simplest activity categories to document because established culinary schools are familiar with the process and issue letters as a matter of routine for DTV applicants.
- An enrollment letter or confirmation from a registered Thai culinary school
- The letter must include: the school’s name, address, and business registration; your name and the course name; the programme duration
Well-known schools with proven DTV experience include Baipai Thai Cooking School (Bangkok, Ngam Wong Wan), Bangkok Thai Cooking Academy, Silom Thai Cooking School, and Asia Scenic Thai Cooking School (Chiang Mai). The cooking class does not need to be full-time, a once-a-week structured programme with a genuine enrolment is sufficient.
Activity 4: Thai Language School
Thai Language Study
Learning Thai is one of the most practically useful activities a long-stay resident can pursue, and it qualifies fully as a DTV Soft Power activity. The DTV does not attach a minimum class-hours requirement, unlike the old Education Visa (ED Visa), which required a specified number of study hours per week. You need genuine enrolment at a registered institution, not attendance records.
- An enrollment confirmation from a Ministry of Education-registered Thai language school
- The letter must include: the school’s name and registration number; your name; the course you are enrolled in; the duration of the programme
In Bangkok, Rak Thai Language School and Union Language School have long track records with visa-supporting enrolments. In Chiang Mai, the YMCA and several independent schools offer similar services. Schools accredited by the Ministry of Education carry the most official weight on an application.
Activity 5: Yoga and Wellness Programmes
Yoga and Wellness
Thailand’s wellness industry has grown significantly, and yoga teacher trainings, meditation retreats, and wellness programmes explicitly qualify as DTV Soft Power activities. The provider must be a registered Thai business, an informal arrangement with an independent yoga teacher does not meet the standard.
- A letter or certificate of participation from the registered wellness provider on official letterhead
- The letter must include: the business name and registration number; the programme name and description; your name as a participant; the duration of the programme
Qualifying programmes include: 200-hour or 300-hour yoga teacher training (YTT), residential meditation retreats, Ayurvedic wellness programmes, Thai massage training courses (Thai massage is specifically part of the Soft Power framework), and structured holistic health retreat programmes. Koh Phangan is one of Southeast Asia’s most prominent yoga hubs. Chiang Mai has a strong meditation and wellness scene, including Suan Dok Temple’s programmes.
Activity 6: Medical Treatment
Medical Treatment
Thailand is one of Asia’s leading medical tourism destinations, with internationally accredited hospitals offering treatments at significantly lower cost than Western countries. Medical treatment is explicitly listed as a qualifying DTV Soft Power activity. Almost any legitimate medical treatment performed by a registered Thai healthcare provider qualifies.
- A letter from your treating hospital or clinic on official letterhead
- The letter must include: the hospital or clinic’s name, address, and registration details; your name as a patient (or confirmed appointment); the nature of the treatment (broadly described); the anticipated duration of treatment and follow-up care
Qualifying treatment types include: elective surgery (orthopaedic, cardiac, cosmetic, ophthalmic), dental treatment and orthodontics, cancer treatment, fertility treatments, rehabilitation and physiotherapy, and traditional Thai medicine. All the major international hospitals in Bangkok, Bumrungrad International, Bangkok Hospital Group, Samitivej, have international patient departments experienced in providing these letters for visa purposes.
Before you arrive: Contact the hospital’s international patient department, book an initial consultation, pay any required deposit, and request the letter as part of your intake process. You do not need to be in Thailand to receive the letter.
Combining Activities
You can declare a primary activity and mention additional ones. The application form asks for a primary category, but you are not restricted to that single activity for your stay. The most common combination is remote work as the primary (because it is the most straightforward to document with an employer letter) alongside Muay Thai or cooking classes as a secondary pursuit mentioned in the cover letter.
Which activity is right for you?
Frequently Asked Questions
No. The declared activity is the qualifying reason for your extended stay, not a schedule that governs every hour. A Muay Thai enrolment covering three sessions per week is perfectly compatible with spending the rest of your time working remotely, travelling around Thailand, or simply living your daily life.
Your visa permission to stay is determined by your entry stamp, not by the duration of your declared activity. If you complete a cooking course in month two of a six-month stay, you do not need to leave Thailand. The visa remains valid for the full permitted stay period.
Yes. Each entry is treated as fresh. If you declared Muay Thai on your first entry and want to declare remote work on your next, you can do so, provide the new activity documentation for the new entry. Thai immigration does not track activity continuity between entries.
There is no officially stated minimum. In practice, a letter confirming enrolment in a three-month programme is significantly more credible than a letter for a single weekend workshop. For a five-year visa application, showing an ongoing, multi-month commitment to an activity is the right approach, not the minimum you can get away with.
Yes. The gym does not need to be enrolled in any DTV programme. They simply need to provide an official letter on their letterhead confirming your training enrolment. You can tell them you need an official enrollment letter for a Thai long-stay visa application and provide them with the list of items the letter must contain. Most gyms that regularly host international students will understand.
Ready to Apply?
Your activity is sorted, here is where to go next.
Full Requirements Checklist Step-by-Step Application Guide The Muay Thai Route in Detail