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SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
SUWANVARA LAWFIRM
SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
Bangkok

Work Permit & Visa Lawyer in Bangkok — Non-B, Non-O, LTR, BOI Smart Visa, 90-Day Reports

Thailand's immigration regime ties three things tightly together: the visa (Non-B for work, Non-O for marriage/retirement, LTR for long-term residents, Smart Visa for BOI-promoted talent), the work permit (issued separately by the Ministry of Labour and only valid for the specific employer and role on the permit), and the 90-day report (required of all foreigners staying continuously for 90 days or more). Getting any one wrong invalidates the others. We handle the full application chain, the renewals, and — when things go wrong — overstay resolution and appeals against denied applications.

Scope of work permit and visa lawyer work in Bangkok

  • Non-B visa and work permit — initial application, renewals, change of employer
  • Non-O visa — marriage extension, retirement extension (50+)
  • LTR (Long-Term Resident) visa — wealthy global citizens, retirees, professionals, work-from-Thailand
  • BOI Smart Visa — for talent in BOI-targeted industries
  • Dependant visas for spouse and children, including school admission paperwork
  • 90-day reporting, re-entry permits, and address changes (TM47 / TM30)
  • Overstay resolution and appeals against denied applications

Process

  1. 1Eligibility review — match visa category to your situation and timeline
  2. 2Document collation — both yours and (for Non-B) the sponsoring company's
  3. 3Visa application at a Thai embassy/consulate abroad, or in-country change of visa
  4. 4Work permit application at the Ministry of Labour after arrival
  5. 5Ongoing compliance — 90-day reports, re-entry permits, renewals

Documents to prepare

  • Passport with at least 6 months validity
  • For Non-B: employment contract, company DBD certificate, VAT and tax certificates, sponsorship letter
  • For Non-O marriage: marriage certificate, Thai spouse's ID and household registration
  • For Non-O retirement: bank book showing THB 800k seasoned 2-3 months, or monthly income proof
  • Education certificates (apostilled/legalised) for work permits

About our team in Bangkok

Service for Bangkok and its metropolitan area — Thailand's capital and its financial and industrial hub. We have a Bangkok branch office in Lat Phrao and appear at the Civil, Criminal, Central Labor, Central Tax, and Central IP & International Trade Courts. We cover factories and operators across Bangkok-area industrial estates such as Lat Krabang, Bang Chan, Gemopolis, Nava Nakorn, Bang Kadi, Bangpoo, and Bang Phli — labor and wrongful-termination cases, import-export customs, BOI investment, and commercial-contract advisory.

We specialize in Bangkok's specialized courts — IP, Central Tax, Central Labor, and Central Administrative — plus M&A, foreign investment, and advisory work for factories in industrial estates: labor and termination disputes, factory and environmental compliance, customs procedures, and BOI privileges. We keep a Bangkok branch office in Lat Phrao and our partners travel to Bangkok regularly, serving clients at lower cost than a downtown-capital firm.

Courts we appear at in Bangkok

  • Bangkok South Civil Court
  • Civil Court
  • Criminal Court
  • Central Labor Court
  • Central Tax Court
  • Central Intellectual Property and International Trade Court

Bangkok and metro (Nonthaburi, Pathum Thani, Samut Prakan), including the Lat Krabang, Bang Chan, Gemopolis, Nava Nakorn, Bang Kadi, Bangpoo, and Bang Phli industrial estates

Past matters in Bangkok

  • International IP case at CIPIT Court

Contact our Bangkok attorneys

We serve clients across Thailand. Initial consultation.

Frequently asked questions — work permit and visa lawyer in Bangkok

3 questions answered

No. It is an offence to work in Thailand without a valid work permit, even if your visa allows residence. "Work" is interpreted broadly under the Working of Aliens Act — it includes unpaid work, signing contracts on behalf of an employer, and attending business meetings in some circumstances. We help time the application so there is no working gap.
The Long-Term Resident (LTR) visa is a 10-year visa introduced to attract four target groups: wealthy global citizens, wealthy pensioners, work-from-Thailand professionals, and highly skilled professionals in BOI-targeted industries. Each category has income, asset, or insurance thresholds. The LTR is significantly easier to maintain than the traditional Non-B/Non-O routes (annual rather than 90-day reporting; digital work permit; simplified renewals). We assess fit and handle the application.
Voluntary departure with payment of the overstay fine at the airport is generally the simplest path for short overstays. Longer overstays (90+ days) trigger automatic re-entry bans (one year for 90 days, escalating up to 10 years for 5+ year overstays). If you've been arrested for overstay, you need representation before the immigration tribunal — call before you make any statement. We've handled both short fix-ups and longer custodial matters.