Thailand Non-B Visa 2025: The Employment Visa You Need Before Your Work Permit

WHAT THE NON-B IS (AND WHAT IT IS NOT) The Non-B is a single-entry or multiple-entry visa issued by Thai consulates outside Thailand. It does not authorise you to work — that authority comes only from the work permit issued after you arrive. The Non-B grants you entry and up to 90 days of initial stay to complete the work permit application in-country. The distinction matters: arriving on a tourist visa exemption or any other visa category and then applying for a work permit is not the correct procedure. Immigration requires a valid Non-B when a work permit application is submitted to the Department of Employment. WHO APPLIES Non-B visas are available to: - Foreigners being hired by a Thai-registered company to work in Thailand - Foreign business owners setting up a Thai entity (BOI-promoted, limited company, etc.) - Certain specialists and qualified experts invited by Thai government agencies or BOI-promoted companies - Teachers at Thai schools and universities (teacher's Non-B, same category) Not for: remote workers earning from overseas clients only (DTV is the correct route). Not for: business meetings, trade shows, or short-term commercial activities that don't involve employment in Thailand. APPLYING FROM YOUR HOME COUNTRY Apply at the Thai consulate or embassy serving your jurisdiction before travelling to Thailand. You cannot apply for a Non-B while on a tourist stamp in Thailand except in limited circumstances (hospitals, BOI-sponsored companies with official exemptions — confirm with the consulate). Required documents (standard; verify with your specific consulate): • Passport — minimum 18 months validity • Completed Non-B application form • Passport photograph (white background, 4×6 cm) • Letter of employment offer or appointment letter from the Thai company • Company registration documents (DBD-certified, typically provided by your employer) • Company tax registration documents (VAT registration, last year's corporate tax filing) • Employer's letter confirming staffing and the Thai employee-to-foreign-employee ratio compliance • Evidence of your qualifications relevant to the job (degree certificates, professional registrations) Processing: typically 5–7 business days at major Thai consulates in Australia, the UK, the USA. Some consulates now offer online applications — check the specific consulate website. Initial visa entry type: typically a 90-day single-entry Non-B. Multiple-entry Non-B is available in some circumstances (particularly for BOI-sponsored roles) — ask your employer. CONVERTING TO A WORK PERMIT (IN-COUNTRY) Once you have entered Thailand on your Non-B and have a job offer in place, your employer submits the work permit application to the Department of Employment within the 90-day stay. The work permit application is employer-led — see our Work Permit Guide for the full document list and process. If the work permit is approved, you convert your Non-B stay to a 1-year Non-B (or Non-B extension) via Immigration. This annual extension ties your stay in Thailand to your continued employment — if you leave the job, the basis for your extension ends. ANNUAL RENEWAL CYCLE The Non-B + work permit combination is renewed annually: 1. Work permit renewed first at the Department of Employment (typically the same month each year) 2. Non-B stay renewed at Immigration (typically tied to the work permit expiry) Many employers handle this process. Be aware of the deadlines — both the work permit and the Non-B must be renewed before expiry to remain in legal status. CHANGING JOBS When you change employers, both the work permit and the Non-B are affected. Your current work permit is valid only for the current employer — you cannot legally work for a new employer using an old employer's work permit. The transition typically requires: 1. Resigning from current employer, which triggers work permit cancellation 2. New employer applying for a new work permit 3. In some cases, exiting Thailand and re-entering on a new Non-B issued for the new employer The exact transition path depends on timing, visa status, and whether your new employer can support an in-country application. Plan carefully — there is no automatic grace period for working between permits. TEACHERS AND EDUCATION Schools and universities in Thailand use a variant of the Non-B specifically for teachers. The documentation differs (teaching licence, institution approval letter) but the core process is the same. Thailand has been tightening enforcement on foreign teachers' qualifications — ensure your teaching certificates and, if required, a Thai teacher's licence (from the Teachers' Council of Thailand) are in order before applying. General guidance only, as of June 2025. Not legal advice. Requirements change without notice. Source: Thai Department of Employment (doe.go.th), Thai Ministry of Foreign Affairs (mfa.go.th). No outcome guaranteed. Always verify current requirements with the consulate and your employer's legal team.