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Thai Notary Law & Service Phuket
THAI NOTARY LAW
Phuket • Thailand

Working in Thailand: Non-B & Work Permit

Non-B business visa, work permit forms, and the employer conditions most often checked.

20 questions in this topic, based on published guidance from the Immigration Bureau, Department of Employment and Ministry of Foreign Affairs. All approvals remain at the discretion of the deciding officer.

Visa vs Permission to StayTourist, Visa Exemption & e-VisaWorking in Thailand: Non-B & Work PermitExtension of Stay & Change of Visa Type90-Day Report, TM30 & Re-entry PermitRetirement Visas: Non-O, O-A, O-XFamily, Spouse & Dependent VisasLong-Stay Options: DTV, LTR, SMART, Thailand PrivilegeStudent & Training Visas (Non-ED)Documents, Translation & Legalization for VisasRefusals, Overstay & Re-applyingThai Nationals Applying Abroad
Q1.What is the risk of repeated short tourist entries?

Frequent back-to-back short-stay entries may lead to additional questioning or refusal of entry, because the pattern suggests continuous residence on tourist rights. Anyone needing to live in Thailand long term should use a category matching the real purpose, such as Non-B for employment or Non-ED for study, rather than repeating short extensions.

Q2.Does a Non-B visa allow me to start working?

No. A Non-B visa allows business-purpose stay, but working requires a separate work permit issued by the Department of Employment or the responsible authority. Starting work before the permit is issued carries penalties for both employee and employer. The correct sequence is the right visa category first, then the work permit application.

Q3.What must a Thai employer prepare to sponsor a Non-B?

Typically the company affidavit and current shareholder list, the latest financial statements, tax and social-security filings for staff, an employment letter stating position and salary, and evidence of the Thai-to-foreign staff ratio required by the authority. Every document must be internally consistent, because officers cross-check figures between filings.

Q4.Can I keep my work permit after changing employer?

Not automatically. A work permit is tied to the employer, position, and work location stated on it. Changing employer requires cancellation and a fresh application through the Department of Employment, plus notification to the Immigration Bureau so the stay permission matches. Plan the transition early so your permitted stay does not lapse.

Q5.Do I need a work permit to work remotely for a foreign company from Thailand?

This must be assessed case by case, because the statutory definition of work is broad and guidance is periodically updated. Long-term remote workers should use a route designed for that purpose, such as DTV or LTR, depending on eligibility, and confirm current guidance with the Department of Employment or a legal adviser first.

Q6.What extra documents do foreign teachers need?

Teaching roles usually require a school letter, degree and transcript legalized and translated as prescribed, a police clearance certificate, and in many cases a teaching licence or waiver from the Teachers' Council. Foreign-issued documents must be legalized in the issuing country and their translations certified before filing.

Q7.Which documents are normally required for an extension?

The core set is form TM.7, photographs in the required size, copies of every stamped passport page, accommodation evidence plus the landlord's TM30 notification, and supporting documents for your reason to stay such as employer papers, marriage documents, or financial evidence. Individual offices may request more based on your circumstances.

Q8.Which immigration office should I file with?

File with the immigration office covering your registered residence or your employer's registered location, not any office of your choice. If you move home or workplace to another province you must report the change and may need to file in the new area. Check the office's jurisdiction and queue-booking system before travelling there.

Q9.Can a retirement visa holder work in Thailand?

No. A stay granted for retirement purposes does not include work rights. Working requires changing to a category that permits employment and obtaining a work permit. Working without a permit carries penalties and affects future extension decisions. Those who need both long-stay and work rights should review options such as LTR.

Q10.Can a dependent of a Non-B holder work?

Dependent status does not include work rights. To work, an employer must apply for a work permit and the stay category must be adjusted accordingly. Working without a permit affects both the worker and the employer and can influence the whole family's next extension assessment, so arrange permissions before starting any paid work.

Q11.How does LTR differ from DTV?

LTR is assessed by the Board of Investment for defined groups: wealthy global citizens, wealthy pensioners, remote workers employed by qualifying companies, and highly skilled professionals, with continuing benefits and a designed work-permit route. DTV is a visa issued by Thai missions and does not grant the right to work for a Thai employer.

Q12.Is Thailand Privilege a permanent visa?

No. Thailand Privilege is a commercial membership that comes with long-stay visa privileges and concierge services. It is not permanent residence and does not grant work rights automatically. Members who wish to work must still obtain a work permit under the law and may need to adjust their stay category accordingly.

Q13.Can international students work part-time in Thailand?

A study-based stay does not include work rights automatically. Working requires a valid work permit and the role must be one the law allows foreigners to perform. Students should check the conditions with their institution and the Department of Employment before accepting work, as unauthorised work affects both student status and future extensions.

Q14.How long can I stay after graduating in Thailand?

Once the reason for stay ends, permission expires on the date already stamped. To stay on you should change the basis of your stay, for example an employer sponsoring a Non-B plus work permit, or leave and apply for a new visa category from abroad. Start early so no gap in permitted stay occurs.

Q15.DTV vs LTR — which long-stay visa should I choose?

The DTV is a 5-year multiple-entry visa allowing 180 days per entry, extendable once by another 180 days inside Thailand; it suits remote workers paid by foreign employers or clients. The LTR is a 10-year (5+5) visa endorsed by BOI, with annual reporting instead of 90-day reporting, fast-track at airports and a bundled digital work permit. If your income and insurance meet BOI thresholds, LTR is usually better long term; otherwise start with the DTV.

Q16.Can a DTV holder work for a Thai company?

No. The DTV only covers remote work for employers or clients registered outside Thailand. Taking work from a Thai entity or earning Thailand-sourced employment income requires a Non-B with a work permit, or an LTR/SMART visa that includes work authorisation. Working without permission is an offence under the Foreign Workers Management Emergency Decree.

Q17.Who qualifies for a SMART Visa and how does it differ from a Non-B?

SMART Visa targets qualified experts, investors, executives and startup founders in Thailand's targeted industries, endorsed through BOI after a qualification review. Unlike the Non-B it needs no separate work permit, requires only annual reporting, and extends residence rights to spouse and children. A Non-B requires a Thai employer to file company documents and a work permit with the Department of Employment each time.

Q18.Does a Thailand Privilege (Elite) membership allow me to work?

No. The membership grants long-stay privileges and concierge services but no work rights. Members who want to work must obtain a work permit through the normal channels or via a package that explicitly includes a work-permit pathway. Working without one carries the same penalties as on any other visa.

Q19.Can I switch from DTV to LTR or Non-B without leaving Thailand?

In-country changes of visa category are possible in some cases and remain at Immigration's discretion. DTV holders hired by a Thai company are usually advised to apply for a fresh Non-B at an embassy abroad to avoid refusal risk. For LTR you can apply for BOI endorsement while in Thailand and then collect the stamp at Immigration or an embassy as BOI directs.

Q20.Can I change my visa category inside Thailand or must I leave?

If you entered visa-exempt or on a tourist visa you can usually convert to a Non-Immigrant category in Thailand, provided you have at least 15 days of permitted stay remaining (some offices require 21) and the supporting documents for the target category. The conversion fee is THB 2,000 and gives 90 days, after which you file TM.7 for a one-year extension. When employer documents are not ready, applying at an embassy abroad is sometimes faster — we compare both routes before you commit.

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Official sources referenced

Government fees and processing times on this page were last verified in July 2026 by our Notarial Services Attorneys registered with the Lawyers Council of Thailand. Figures follow published agency schedules, may change without notice, and actual turnaround depends on each authority's queue. Please reconfirm with the issuing authority before you file.