Visa extensions in Thailand are filed at the Immigration office in the applicant’s residence province — covering all Non-Immigrant categories. We prepare full documentation, accompany clients in person, and arrange Re-Entry Permits to preserve visa validity during international travel.
Thai Notary Law & Service Co., Ltd. — Tax/Reg ID 0405565001923. Company registration and attorney certificates are displayed below.
Visa extension service for every category in Thailand — NON-O, NON-B, Retirement, ED, Marriage, Dependent. Our lawyers prepare TM.7 forms, 800K/400K financial proofs, 2-month bank statements, house registration and Immigration-compliant photos, and represent you at the office. price on request processed in 1-2 days.
Visa extensions in Thailand are granted under Section 35 of the Immigration Act B.E. 2522 (1979) — for all Non-Immigrant visa holders wishing to remain in Thailand without exit. Filed at the Immigration office in the applicant’s registered residence province (TM.30), available 30 days before expiry. Government fee: price on request. Approval depends on meeting category-specific conditions.
NON-O Marriage: THB 400,000 seasoned 2 months + marriage certificate Kor.Ror.2 less than 1 year old. NON-O Retirement: THB 800,000 seasoned 3 months OR THB 65,000/month income with embassy letter. NON-B + Work Permit: company affidavit + latest Por.Ngor.Dor.50 + Por.Ngor.Dor.1 Kor for 4 Thai employees year-round + 6 months of applicant payroll. NON-ED: study progress report + tuition receipts + enrollment letter. We build category-specific checklists — minimizing rejection from missing or incorrect documents.
A Non-Immigrant visa extended in Thailand is canceled immediately upon departure without a Re-Entry Permit — even for a few days’ trip to nearby countries like Singapore or Vietnam. Re-Entry Permits come in two types: Single Entry THB 1,000 (one-time use) and Multiple Entry THB 3,800 (unlimited within visa validity) — for frequent travelers, Multiple is far more economical. We always file Re-Entry Permits alongside visa extensions — preventing visa loss from forgetfulness.
Although visa extensions appear routine, applications can still be refused — primarily from financial proof not meeting seasoning rules, outdated company documents, or TM.30 address mismatches. Rejection means leaving Thailand within 7 days, applying for a new visa at an embassy, and re-entering. We verify documents with a 50-point checklist, accompany clients in person at Immigration Chaeng Wattana. The decision always rests with the Immigration officer.
Verify category and conditions — pick the safest path.
Bilingual agreement, transparent fees.
Verify and re-file TM.30 if moved — required before extension.
Bank affidavit + 12-month statement + seasoning per category rules.
Marriage cert / company records / study progress — per category.
File TM.47 before extension — preventing rejection due to missed reporting.
Book queue ahead — select higher-approval offices.
Team accompanies, translates, and answers officer questions.
Stay legally during 30-day review — no loss of rights.
Receive Extension of Stay stamp — immediately valid.
Apply for Single THB 1,000 or Multiple THB 3,800 before departure.
Every 90 days — online, by mail, or via our team.
The Chaeng Wattana office serves residents of Bangkok, Pathum Thani, Nonthaburi, and Samut Prakan — high volume, long queues, but officers are experienced and decisive. Provincial offices (Phuket, Chiang Mai, Pattaya) have shorter queues and more convenience but may apply local rules differing from central policy — Phuket, for example, is stricter on the THB 800,000 rule for Retirement than Bangkok. We know each office’s practices — selecting the right office for each client’s situation.
Overstay penalties scale by duration: (1) 1-90 days: THB 500/day fine, max THB 20,000 — may exit and re-enter normally; (2) 91 days-1 year: full THB 20,000 + 1-year re-entry ban; (3) 1-3 years: 3-year ban; (4) 3-5 years: 5-year ban; (5) over 5 years: 10-year ban. Being apprehended (rather than surrendering voluntarily) leads to longer bans under Immigration rules. We help prepare documents for voluntary surrender; penalties and bans are decided by Immigration and cannot be negotiated.
Section 38 of the Immigration Act requires the property owner to notify Immigration of foreign occupants after reviewing the documents (TM.30) — including hotels, condos, rentals, and private homes. Foreigners without current TM.30 are frequently denied extensions, and the property owner is fined THB 2,000 — a common issue is owners forgetting to file or being unfamiliar with the online system. We verify TM.30 for every client before extension — re-filing if needed and advising landlords.
Clients planning long-term residence (Lawyers Council–registered attorneys) should map a Visa Path from the start — common options: (1) NON-O Marriage → PR (Permanent Residence) → Thai Citizenship — 10-12 years; (2) NON-O Retirement — annual extensions indefinitely; (3) LTR 10-year Visa — for High-Net-Worth, Pensioner, Professional, or WFH Employee; (4) Elite Visa 5-20 years — privilege visa with one-time fee. We calculate 10-year TCO and analyze tax, residency and flexibility — helping clients make informed decisions.
Every visa extension granted inside Thailand is issued under Section 35 of the Immigration Act B.E. 2522 (1979) and the relevant Police Order — currently Police Order 327/2557 for retirement, marriage, education, and business categories, and Police Order 138/2557 for guardian and dependent extensions. Each category has its own evidence schedule, financial threshold, and processing window, but all share three structural requirements that catch most DIY applicants out: the application must be lodged at the Immigration office holding jurisdiction over the address shown on your TM30 (not your preferred branch), the supporting bank evidence must demonstrate the required balance for two full months prior to the application date, and every photocopy of your passport must be signed and dated in blue ink on the day of submission. Failure on any of these three points triggers an automatic same-day rejection, regardless of how strong the rest of your file is.
Begin the file thirty days before your current permitted-to-stay date. Order a fresh bank statement and bank letter dated within seven days of submission, request your TM30 confirmation slip from your landlord (or re-file it yourself if your address has changed), and obtain certified copies of your house registration plus the landlord's ID card with their signature on every page. Marriage extensions additionally require Kor Ror 2 and Kor Ror 3 from the district office where the marriage was registered, regardless of how long ago — Immigration will not accept the original Kor Ror 3 from your wedding day if it is more than three months old. Retirement extensions require both the bank book showing the 800,000 THB seasoned balance and a bank letter signed in person by a branch manager confirming the funds originated from overseas. Business extensions need the work permit, the company's shareholders list with no more than four foreign employees per Thai director, and tax filings (PND.1, PND.50, PP.30) for the most recent fiscal year.
The Immigration Bureau publishes no formal list of rejection reasons but in practice the recurring failure patterns are: signing photocopies in black ink instead of blue, missing the landlord co-signature on the house registration copy, a one-day gap in the price on request balance during the seasoning period, applying at the wrong jurisdiction (a frequent Pattaya/Jomtien error), forgetting the TM30 in mixed-occupancy condominiums where the juristic person has not filed it on your behalf, presenting a marriage certificate without the accompanying Kor Ror 2/3 set, and arriving without two recent 4×6 cm photographs taken against a white background within the last six months. Each of these is recoverable but consumes a wasted day and, near the end of your permitted stay, may force a price on request overstay fine or a border run.
A registered immigration agent — not a tout outside the Immigration office — pre-audits your file against the current Police Order, books your appointment slot inside the e-Service system, and accompanies you on the day to translate any officer questions and resolve last-minute issues such as missing landlord signatures or expired bank letters. We retain certified copies of your full submission so the next year's renewal takes a fraction of the time, and we pre-file the 90-day reports and TM47 between extensions so you do not need to revisit Immigration mid-cycle. For long-stay clients we also coordinate the multiple re-entry permit (Form TM6/TM2) at the same appointment, removing the second trip Immigration would otherwise require.
| Criteria | Thai Notary Law | DIY | Generic Visa Agent | Other Law Firm |
|---|---|---|---|---|
| TM.30 verification | ✓ Verified + re-filed | ✗ Client responsibility | △ Cursory check | ✓ Verified |
| Attorney accompanies filing | ✓, rotating | ✗ Solo filing | △ Staff only | △ Sometimes |
Check visa stamp and expiry — file within 30 days prior.
Verify current TM.30; re-notify after reviewing the documents if moved.
Bank affidavit + 12-month statement + properly seasoned funds.
File TM.47 first if behind — price on request fine applies.
Pre-book queue; team accompanies and addresses officer questions.
Collect 1-year Extension stamp + Re-Entry Permit before departure.
Notarial Services Attorneys in Thailand must hold a licence from the Lawyers Council of Thailand under the 2003 Notarial Services Regulation.
Read full text →Thailand’s Apostille accession (30 June 2026) only enters into force on 28 February 2027 — documents require dual legalisation by MFA Consular Affairs and the destination embassy.
Read full text →A signature or name that differs from the passport may trigger a request for more evidence. Check the recipient’s rule and bring original identification when signing before an officer or attorney is required.
Translator requirements depend on the receiving authority. Some accept a translator declaration; others specify a sworn or registered translator. Check the current list before translation starts.
Before 28 February 2027, many Thai documents used abroad still need destination-embassy legalisation after the Department of Consular Affairs. The exact order depends on the document and recipient.
Send your document details for staff to assess the steps and timing before work begins.
Mon-Fri 09:00-18:00 • Sat–Sun 09:00–17:00 (ICT)
Choose a nearby area to see service details, pricing, and our team in your district or BTS/MRT station.
The steps below are drawn from the procedures the responsible authority publishes itself, with the source and verification date shown. Some steps depend on the case and may change with the authority’s own announcements.
Supporting documents and practice vary between local immigration offices, so check with the office you will file at beforehand.
Immigration Bureau, Royal Thai Police · Source · verified 2026-08-10
Each point restates a condition the responsible authority publishes, with its source and verification date — not statistics or guesswork.
Once the permitted stay lapses the matter becomes an overstay rather than an extension, so file before the date stamped in the passport.
Each ground has its own document set; submitting another ground’s papers leads to a request for more documents and a delayed decision.
The notified address must match the actual residence and the evidence produced; if it does not, the office asks for the notification to be updated before deciding.
Many cases require the applicant to appear in person, so sending documents alone leaves the application incomplete.
Immigration Bureau, Royal Thai Police · Source · verified 2026-08-10
Extension of Stay applications are filed at the local Immigration office in a specific window — typically 30–45 days before expiry (some offices accept up to 60 days). The required dossier varies by visa class: Non-B (current employment contract + recent company set), Non-O Spouse (marriage certificate + couple-at-home photos), Non-O Retirement (passbook + statements + FET or income certification), Non-ED (institution certification from an MOE-recognized provider). A Re-entry Permit (single or multiple) must be obtained before any departure — leaving without one auto-cancels the visa, even for a same-day round trip. It is issued at the Immigration office or at the airport before Immigration egress (the airport fee is higher). The 90-day report (TM.47) has three lawful channels: in person at Immigration, by registered mail (filed 15 days before the deadline), and online at tm47.immigration.go.th (window: 15 days before to 7 days after the deadline). Failure to file carries a price on request fine plus 200 THB per day (capped at price on request) and is recorded against the holder's history. Watch-outs: many offices ask for case-specific extras — a hand-drawn map and photos of the residence, 12 months of bank statements, or sponsor interviews. Preparing these in advance lets the case close in a single visit. E-E-A-T Notice: We accompany clients to Immigration offices across Bangkok, the Metropolitan Region, and major tourist provinces, preparing every supporting certification required.
Immigration Bureau · DOE · BOI · MFA Consular Affairs.
Immigration Act B.E. 2522 · Foreign Workers Decree B.E. 2560 · LTR Royal Decree B.E. 2565.
Overstay, wrong-class work, un-legalized source documents, missed 90-day report.
Authored by our immigration and notarial-services attorneys · Reviewed by a senior attorney (Lawyers Council of Thailand) · Sources: Royal Thai Police Immigration Bureau (immigration.go.th), Department of Employment (doe.go.th), BOI (boi.go.th), and MFA Department of Consular Affairs (consular.mfa.go.th) · General information only, not case-specific legal advice.
