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If you have a Thai employer ready to hire you, the Non-B + Work Permit combo is your legal route to working in Thailand. The employer needs 4 Thai employees per foreign worker, ฿2M+ registered capital, and must sponsor your visa. You apply for the 90-day Non-B at a Thai embassy abroad, then convert to a 1-year extension at Jomtien Immigration. The separate work permit is issued by the Ministry of Labour. Renewable annually. After 3 years on Non-B + WP, you become PR-eligible.
What Non-B actually is
The Non-Immigrant B (Business) visa is one of Thailand's oldest visa categories — designed for foreigners coming to work legally for a Thai employer. Unlike SMART or LTR (BOI-administered, narrower industries), Non-B is the generic work-visa pathway available across all industries: hospitality, education, IT, engineering, manufacturing, etc.
The Non-B itself is just the entry/stay visa. You also need a Work Permit issued by the Ministry of Labour. Together: Non-B (right to be in Thailand) + WP (right to work). One without the other is incomplete — you can't work on the Non-B alone, and the WP alone won't get you long-term stay.
Who needs Non-B
- Employees of Thai companies (the most common case)
- Directors of Thai-registered companies (including foreign-owned BOI/Treaty companies)
- Consultants on long-term contracts with Thai entities
- Foreign experts invited by Thai government agencies
- Teachers at MOE-accredited schools (sometimes Non-B Education sub-type)
- Performers / sportspeople with Thai contracts
You do NOT need Non-B if: you work remotely for foreign clients (use DTV), you don't actually work in Thailand (use Retirement or Privilege), or you fall under specific BOI categories (use SMART or LTR).
Thai employer requirements
The Thai company sponsoring you must meet specific thresholds:
- Registered capital ≥ ฿2,000,000 per foreign worker hired (in some sectors ฿3M+ — BOI companies often exempt)
- 4 Thai employees per 1 foreign worker ratio (with Social Security contributions paid for all)
- Tax compliance — current on corporate tax, VAT, and Social Security
- Operational — actually operating, not a shell. Officials visit larger employers.
- Job role on the prohibited list — some roles are reserved for Thais (taxi driver, hairdresser, agriculture labour, etc.). Check the Royal Thai Decree 322 prohibited-occupations list.
The 4 Thai employees per foreign worker rule is strict and audited. A small Thai company with 4 Thais can only legally support 1 foreign employee. A startup with 2 Thai employees cannot legally sponsor any foreign workers — they'd need to hire 2 more Thais first. This catches many small Thai businesses by surprise.
The cost — visa + work permit together
| Item | Cost | Notes |
|---|---|---|
| Non-B entry visa (single) | ~฿2,000 | From Thai embassy abroad — 90-day entry |
| 1-year extension (Jomtien) | ฿1,900 | Convert 90-day → 1 year in-country |
| Work Permit (initial) | ฿3,000-5,000 | Filed at Ministry of Labour, valid 1 year |
| Work Permit renewal | ฿3,000/yr | Per year, often paid by employer |
| Multi re-entry permit | ฿3,800 | If travelling during visa year |
| Tax ID + Social Security setup | Free | Done with WP, employer files |
| Annual income tax | 5-35% | Standard Thai progressive rates on Thai salary |
| 90-day reporting | Free | Online or in-person at Jomtien |
Annual govt cost: ฿4,900-12,800. Most Thai employers cover the work permit cost. Your real "cost" is the Thai income tax on your salary.
Application — step by step
Get a Thai job offer
Get a signed employment contract from a Thai company that meets the 4:1 ratio + ฿2M capital requirements. The contract specifies role, salary, duration.
Receive WP01 letter
The employer sends you a WP01 letter — the formal invitation to apply for Non-B. It includes company documents (corporate certificate, tax docs, list of Thai employees).
Apply for 90-day Non-B
Apply at any Thai embassy abroad (Vientiane, Phnom Penh, Kuala Lumpur popular for Pattaya-bound applicants). Submit WP01 + company docs + ฿2,000 fee. Get 90-day Non-B sticker.
Enter Thailand
Enter Thailand on the 90-day Non-B. Start work immediately (the Non-B authorises you to be in Thailand for work, but you still need the WP to legally work).
Apply for Work Permit
Within the first 30 days, your employer files the WP application at the Pattaya Ministry of Labour office (Bang Lamung). Documents: employment contract, company docs, your passport copies, photos. Processing: 7-10 days.
Convert to 1-year Non-B
In the final 30 days of your 90-day Non-B, apply at Jomtien Immigration for 1-year extension. Bring: WP copy, employer docs, TM30, ฿1,900. Get the 1-year sticker.
90-day reporting + annual renewals
Every 90 days file TM47. Each year before expiry, return to Jomtien for the next 1-year extension. Work Permit renewed in parallel at Ministry of Labour.
Path to Permanent Residency
After 3 consecutive years on Non-B + Work Permit (no gaps), you become eligible to apply for Thai Permanent Residency. Requirements:
- Continuous Non-B + WP for 3 years (no breaks)
- Minimum annual income ฿80,000+/month (some sources say ฿50K+ — verify current threshold)
- Thai language exam (basic conversational level)
- Points-based assessment (age, education, family ties, language)
- Application fee: ฿7,600 + ฿191,400 if approved
- Annual quota: 100 per country
Non-B vs alternatives
| Visa | Cost | Validity | Work permit | Best for |
|---|---|---|---|---|
| Non-B | ฿2K + ฿3-5K WP | 1 yr | Separate | Any Thai employer · annual |
| SMART | ฿10K | 4 yrs | Bundled | BOI industries only |
| LTR (H/T) | ฿50K | 10 yrs | Bundled | $80K+ income · targeted industries |
| Marriage | ฿1.9K + ฿3-5K WP | 1 yr | Separate | Married to Thai · work optional |
| DTV | ฿10K | 5 yrs | No Thai work | Remote work for foreign clients |
5 common Pattaya Non-B mistakes
- Working before the WP is issued. The Non-B alone doesn't authorise you to work. Working pre-WP can void your visa, fine your employer, and trigger a Ministry of Labour blacklist.
- Switching employers mid-visa without updating. If you change jobs, you need a new WP from the new employer + a new Non-B. The old visa is voided when the old employer cancels your WP.
- Employer doesn't meet the 4:1 ratio. Small Pattaya restaurants/bars often want to hire foreigners but don't have 4 Thai staff. You can't legally work there on a Non-B. Look for larger employers.
- Not filing tax returns. Non-B holders are Thai tax residents (180+ days). File annually (Por Ngor Dor 91 form). Missing returns risks both visa and PR eligibility down the road.
- Letting the WP lapse before visa renewal. The 1-year visa extension at Jomtien requires a valid WP at the time of application. Sequence the renewals: WP first, then visa.
Common questions
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Can I get Non-B without a Thai employer?
Generally no — Non-B requires a Thai entity sponsoring you (employer, BOI company you direct, etc.). For self-employed remote workers without Thai sponsor, DTV is the answer. For higher-income foreigners with foreign employer, LTR Work-from-Thailand may qualify.
How much Thai income tax do I pay on Non-B?
Standard Thai progressive rates: 5% (first ฿300K above the ฿150K threshold), up to 35% (over ฿5M). Most Pattaya Non-B holders earning ฿50-100K/month pay 7-17% effective. Your employer withholds and remits monthly.
Can I start my own Thai company as a foreigner on Non-B?
Yes, but you need a Thai shareholder structure (49% foreign max for most sectors, 100% under Treaty of Amity for US citizens, BOI promotion for select industries). Your company becomes your sponsor for Non-B + WP. Many Pattaya foreign business owners use this route.
What if I get laid off / quit?
Your Non-B is voided at the moment the employer cancels your WP. You have ~7 days to either find a new sponsor + transfer the visa, or leave Thailand. Don't overstay.
Does Non-B let me bring my family?
Yes — spouse and unmarried children under 20 qualify for Non-O dependant visas attached to your Non-B. Same renewal cycle. Your spouse can apply for her own Work Permit if she also wants to work.
Where in Pattaya is the Ministry of Labour office?
Bang Lamung District Labour Office, on Sukhumvit Road. Mon-Fri 08:30-16:30. Work permit applications and renewals filed here.