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Service Knowledge Base

Thai immigration paperwork — questions foreigners actually ask

Answers on documents supporting Thai immigration matters — extension of stay (TM.7), address notification (TM.30), 90-day reporting (TM.47) — and how supporting papers should be translated and certified, based on the Immigration Act B.E. 2522 and Immigration Bureau notifications. (24+ search topics covered)

Can an overstay be undone?

No. Overstay carries fines and can trigger statutory re-entry bans. We cannot remove those consequences, but we can prepare supporting documents and assist with contacting the authority through the correct procedure.

How are foreign degrees certified for a work permit?

Generally they are certified in the issuing country and legalised by the Royal Thai Embassy there, or attested by that country's embassy in Thailand and then legalised by the MFA, with a Thai translation attached. The exact chain depends on the issuing country.

Do foreign documents filed with immigration need translation?

Documents not in Thai or English normally need an accompanying translation, and officers frequently require the certification chain applicable to your nationality — your embassy in Thailand and/or MFA legalisation — before acceptance.

Which law governs immigration matters in Thailand?

The Immigration Act B.E. 2522 (1979), together with ministerial regulations and Immigration Bureau notifications. Detailed criteria sit in published Royal Thai Police orders that are amended periodically, so the current version should be checked before every filing.

How should foreign documents supporting an extension of stay be prepared?

Foreign marriage certificates, children's birth certificates and financial confirmations are normally authenticated under the issuing country's system and by the Royal Thai Embassy there, or by apostille once the Convention enters into force for Thailand on 28 February 2027 where accepted. A Thai translation is then legalised by the Department of Consular Affairs before the document is attached. Check the validity period applied by the office, since some categories must have been issued within a limited window before filing.

Can documents for an extension be submitted by a representative?

Practice varies by office and category. Some immigration offices accept a filing by an authorised representative with a power of attorney and copies certified by the applicant; others require the applicant's personal attendance, photographs at the residence, or a biometric step. Since attendance rules are set locally and change, we confirm with the receiving office before the appointment rather than assume.

Must the financial evidence be seasoned?

Extension categories based on a deposit require the funds to sit in the applicant's own account at a bank in Thailand for the amount and period set by regulation, both at filing and afterwards. Funds transferred in days before filing are normally not accepted.

What if the officer asks for more documents?

Ask for the missing items to be stated clearly, then supply them within the deadline given. We prepare the additional bundle and translations in the specified format so the application continues rather than restarting.
Topics covered
กลุ่มเหตุผลการอยู่ต่อ: อยู่ต่อกรณีสมรสกับคนไทย · อยู่ต่อกรณีทำงาน · อยู่ต่อกรณีเกษียณอายุ · อยู่ต่อกรณีอุปการะบุตร · อยู่ต่อกรณีศึกษา · อยู่ต่อกรณีรักษาพยาบาล
เชื่อมกับใบอนุญาตทำงาน: work permit thailand · ใบอนุญาตทำงานกรมการจัดหางาน · เอกสารบริษัทขอใบอนุญาตทำงาน · แปลวุฒิการศึกษาขอใบอนุญาตทำงาน · รับรองวุฒิเพื่อทำงานในไทย
คำค้นหลัก: ต่อวีซ่าในไทย · ขออยู่ต่อ ตม.7 · extension of stay thailand · แจ้ง 90 วัน · 90 day report thailand · ตม.30 แจ้งที่พักคนต่างด้าว · re-entry permit ตม.8
Official references

Need your documents reviewed or your case assessed? Ask our team by phone, LINE, or email. We reply during business hours (Mon–Fri 9:00–18:00, Sat 9:00–15:00, ICT).

083-249-4999LINE @NYCVcontact@nycvisa.org
Example of an approved business-category visa
Example of an approved business-category visa — From actual casework by the NYC Visa & Translation team
Service Playbook

Thai immigration compliance — TM.30, 90-day reports and re-entry

TM.30 address notification is the housemaster's duty; the 90-day report (TM.47) is the resident's. Neither is a visa extension.

Documents to prepare

  • • Passport with the current entry stamp and departure card
  • • Proof of address such as a lease or a housemaster letter
  • • The housemaster's house registration and ID for TM.30
  • • Your previous receipt for the next 90-day report
  • • Re-entry permit application if you plan to travel
  • • Power of attorney if someone files for you

Step-by-step process

  1. 1. File TM.30 on arrival at the address — The housemaster or landlord files within the statutory window.
  2. 2. Report at 90 days — In person, by post or online within the permitted window.
  3. 3. Obtain a re-entry permit before leaving — Single or multiple, depending on your travel plans.
  4. 4. Keep every receipt — Receipts support your next extension filing.

Pitfalls and rejection causes

  • • Leaving without a re-entry permit ends your permission to stay.
  • • A missing TM.30 can stall an extension.
  • • The 90-day report has a fixed window — diarise it.
  • • Overstay carries fines and future travel consequences.

Tips from our team

  • • Set a reminder seven days before each deadline.
  • • Photograph the entry stamp and every receipt.
  • • File a new TM.30 whenever you move.

Prefer not to handle the queues yourself, or worried about a rejection? Send us photos of your documents for a free pre-check. We handle the full chain — obtaining certified copies, translation, certification and submission — and keep you updated at each step. Reach us on LINE, phone or email during business hours.

Route Comparison

Comparing Thai immigration routes

Extending, changing visa category in-country, or leaving to re-apply abroad carry very different timelines and risks.

RouteWhen to useCertifying authorityApprox. durationRejection risk
Extension of stay at an immigration officeYou are still within your permitted stay and meet the criteriaImmigration BureauVariable — some offices decide same-day, others place the case under considerationFiling on the last permitted day leaves no room to fix documents if more are requested
Change of visa category in-countryYour purpose of stay changed, e.g. tourism to employment or familyImmigration Bureau, under the published criteriaVariable — allow time for additional document requestsToo few days remaining under the criteria forces a fresh application from abroad
Apply for a new visa at a Thai embassy or consulate abroadThe category cannot be changed in-country, or the profile suits an overseas filing betterRoyal Thai Embassy or Consulate-General abroadVariable by postEach post sets its own document list and residency conditions — verify before travelling

Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before booking travel. If you would rather not test routes by trial and error, our advisers can assess which route fits your case.

Advisory Service

We do not just process documents — we advise you through the whole case

Our team has worked on cross-border documents, certified translation and government liaison for over 15 years. Most rejections we see are not caused by missing paperwork but by choosing the wrong route on day one, so we always start with a case assessment.

Route assessment

We look at your destination, purpose and deadline, then tell you which certification route applies — and which steps you can skip.

Pre-submission review

Name spelling, consistency across documents, document age and translation format are checked before anything reaches a counter.

Timeline planning

We sequence the steps around your appointment or travel date and flag bottlenecks in advance.

Rejection recovery

We read the refusal reasons, identify the underlying cause, and plan a resubmission that answers what the authority asked for.

Rather not learn by trial and error? Send your case details and document photos for a review — reach us on LINE, phone or email during business hours.

Practical Q&A

Practical questions · Near me / DIY / Required documents

Is there a service point near me?

Our main offices are Lat Phrao 95 (Bangkok), Khon Kaen and Udon Thani. We serve the whole country through scans and document courier, and can meet at city rail stations or malls. Ask our team by phone, LINE or email for the most convenient option.

Can I handle this myself?

Many steps can be done personally under the relevant authority's rules. What usually costs time is the wrong sequence, a translation format that does not match the requirement, or a source document version the recipient will not accept. Check the destination checklist before starting and ask us if anything is unclear.

Which documents should I prepare?

Generally the original document from the competent authority, the owner's ID or passport, a translation in the format the destination requires, and a power of attorney if someone acts for you. Details vary by service type — ask our team for a case-specific checklist.
Practical advice & cautions

Visa and immigration matters: advice and cautions

Before you start

  • Plan around expiry dates

    Extensions, reporting and re-entry permits should be handled well ahead of the deadline; queues and public holidays can make last-minute filing impossible.

  • Order documents to the authority's checklist

    Assembling the bundle in the required order with an index speeds up assessment and reduces requests for more documents.

  • Check passport validity and blank pages

    Many countries set a minimum remaining validity and number of blank pages. Verify before your appointment.

  • Make funds explainable

    Large deposits made shortly before filing attract questions. Support them with evidence of income and use statements bearing the bank's original seal.

Common reasons documents get rejected

  • Form data contradicting the attachments

    Dates, addresses or travel history that conflict with supporting documents are a frequent refusal ground and may be read as misrepresentation.

  • Translations the destination does not accept

    Accepted translator categories differ by country; confirm the required type before ordering.

  • Expired supporting documents

    Civil registry extracts, medical certificates and police clearances have limited validity; old copies make the bundle incomplete.

  • Ignoring post-approval obligations

    Periodic reporting, address notification and work conditions are ongoing duties that affect the next extension.

Requirements differ by authority and destination country and can change. Confirm current conditions with the receiving authority, or ask our team by phone, LINE or email.

What people search for

Frequently searched topics about visas and immigration

Documents required for a visa application
Checklists are set by the embassy or receiving authority; always follow their current published notice.
Extensions and periodic reporting
Long-stay holders must report at the intervals set by the Immigration Bureau.
Notification of residence for foreign nationals
House owners or occupiers must notify the stay of foreign nationals under Thai immigration law.
Refusal and reapplication
Read the stated reason first and address the actual cause rather than resubmitting the same file.

These topics reflect the rules and practice of the relevant authorities and can change. Confirm with the receiving authority, or ask our team by phone, LINE or email.

Related services

What clients usually handle next

One document set often moves through several stages — translation, notarial certification, legalization and finally a visa filing. The links below follow that real sequence.

External authority references

Authority requirements change. Verify with the receiving authority before filing, or ask our team by phone, LINE or email.