Written by the Thai Legal & Immigration legal team · Last reviewed · Editorial policy
What is the difference between a visa agent and a law firm?
A visa agent is a business that prepares forms, books appointments and accompanies applicants to immigration offices. Thai law does not create a special licence called 'visa agent', so quality ranges from careful, long-established firms to one-person operations with no registered company behind them.
A law firm employs lawyers admitted by the Lawyers Council of Thailand. Lawyers are bound by professional conduct rules, can give legal opinions, can represent you if a dispute or refusal turns into a legal matter, and — where they hold notarial services attorney registration — can certify signatures and documents. A lawyer cannot change immigration rules either, but you have a named professional who is accountable for the advice.
For a simple, routine filing many people are well served by a careful agent. When your case involves a past overstay, a previous refusal, a company structure, a marriage registered abroad, a criminal record question or foreign documents that need certification, the analysis is legal in nature and a lawyer review is the safer choice.
Warning signs of a visa scam or a risky provider
Expat forums regularly report the same patterns. Treat any of these as a reason to stop and check:
- A promise of approval, or an 'approval rate' presented as if it applied to your case.
- An offer to obtain a visa or extension without meeting a legal condition, such as funds that never actually sit in your account.
- A request to leave your passport for days with no signed, dated receipt listing the passport number.
- No registered company name, no DBD registration number and no physical office you can visit.
- Payment only in cash or to a personal bank account with no tax invoice.
- Pressure to decide today, or advice to stay silent about a previous refusal or overstay.
- Stamps or documents you are told to collect somewhere other than an official immigration office or embassy channel.
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A checklist before you hire anyone
These checks take minutes and protect you whichever provider you choose:
- Search the company name on the DBD DataWarehouse and compare it with the name on the contract and invoice.
- Ask for the name of the lawyer or adviser responsible and, for a lawyer, the licence details so you can verify them with the Lawyers Council of Thailand.
- Get a written scope: which application, which office or embassy, which documents you supply and what is excluded.
- Ask how your personal data and passport copies are stored and who can see them.
- Confirm whether you must attend in person; most extensions and many reports require the applicant to appear.
- Keep copies of everything you sign and every receipt.
Why legal conditions cannot be 'arranged'
Thai long-stay permissions rest on conditions written in Immigration Bureau orders and Ministry of Foreign Affairs rules: age, funds, income, marriage, employment or investment. When a provider says a condition can be 'handled' without you meeting it, you carry the risk. Officers can review a past extension, refuse a later one or record a status problem that follows you at the border.
A legitimate adviser works the other way round: they confirm you meet the condition, then make the evidence clear, consistent and complete for the specific office that will decide.
How we work
Thai Legal & Immigration Consulting Service Co., Ltd. is a registered Thai company with offices in Bangkok (Lat Phrao Soi 95, near MRT Mahat Thai) and Khon Kaen, and a team that includes licensed Thai attorneys and notarial services attorneys. Our company registration certificate is published on our About page so you can verify it.
Every engagement starts with a Free Initial Case Assessment, followed by a written scope and a formal quotation. We give you a dated receipt for any original document we hold, explain what the officer will decide and what we cannot influence, and tell you plainly when we think your case does not meet a condition yet.
Which cases are routine, and which need a legal review?
Most foreigners in Thailand file the same few applications every year: a 90-day report, a TM.30 address notification, a re-entry permit or a one-year extension of stay based on retirement or marriage. When your circumstances have not changed and your previous filings were accepted without difficulty, the work is largely administrative. The important skills are accuracy, knowledge of the local office's current document practice and punctuality. A careful agent with a real office and a registered company can handle this kind of filing well.
Other situations look similar on the surface but carry legal questions underneath. A previous overstay, even a short one, can affect later applications and border checks. A previous visa refusal changes how an embassy reads a new file. A marriage registered abroad must be recognised in Thailand before it can support a Thai marriage-based extension. A company that sponsors a Non-B visa and work permit must meet capital, staffing and tax-filing conditions, and the foreign shareholding structure must comply with the Foreign Business Act. Criminal records, name changes, dual nationality and children born abroad all raise questions where the answer depends on how Thai law treats a document or a status. These are the cases in which a lawyer's review is worth the time.
A useful test is to ask whether the question is 'which form and which copy' or 'does my situation meet the legal condition'. The first is administrative. The second is legal analysis, and you want the person answering it to be accountable for the answer.
How to read an 'approval rate' or a review score
Some providers advertise very high approval rates or large numbers of approved visas. These figures are rarely independently verified, they depend on which cases the provider accepted in the first place, and they say nothing about your file. A firm that turns away weak cases will naturally show a high rate; a firm that files everything may show a lower one while still giving honest advice. Treat any rate as marketing, not as a forecast.
Online reviews are more useful when you read them for detail rather than score. Look for reviews that mention the specific application, the office, how problems were handled and whether the provider explained risks before taking payment. Repeated complaints about held passports, unexplained extra charges or advice to ignore a condition are more informative than the average star rating.
Ask the provider directly what happens if the application is refused: whether they explain the refusal reason, what further work is included and what is not. A clear, written answer is a good sign.
Your passport, your data and your money
Your passport is the most valuable document you hold in Thailand. There are legitimate reasons for an adviser to hold it briefly, for example when a filing must be lodged on your behalf for a re-entry permit or for document certification. In every case you should receive a signed, dated receipt that lists the passport number, the reason it is being held and the expected return date. If a provider refuses to give a receipt, take your passport back.
Applications contain sensitive personal data: bank statements, marriage and birth certificates, employment contracts and sometimes medical or police records. Thailand's Personal Data Protection Act applies to businesses that collect this data. Ask how your documents are sent and stored. Sending passport scans through personal messaging accounts, or to an individual's private email, is a risk you can avoid by asking for a secure upload method.
Pay a registered company, by bank transfer to an account in the company's name, against a tax invoice or receipt. Cash-only arrangements and payments to personal accounts leave you without evidence if something goes wrong. Government fees are paid separately to the authority and should be shown separately.
What a responsible adviser will tell you
A responsible adviser explains which authority decides your case and what that authority looks at. For an extension of stay, that is the immigration office for the province where you live. For a visa issued abroad, it is the Royal Thai Embassy or Consulate handling the application through the Thai e-Visa system. For a work permit, it is the Department of Employment. The adviser can prepare, check and present your evidence; the decision belongs to the officer.
They will also tell you when your case does not yet meet a condition: funds that have not been held long enough, a document that still needs legalisation, or an address that has not been notified. Advice to wait or to correct a problem first is a sign of care, not a lost sale.
Finally, they will explain timing. Many permissions can only be extended within a window before expiry, embassies set their own processing practice and some offices require in-person attendance on a specific day. A plan that respects these limits avoids the overstays and rushed filings that cause most problems.
Foreign documents and certification
Foreign documents used in Thailand, such as birth and marriage certificates, police clearances or degree certificates, usually need certification and a Thai translation. Thailand acceded to the Apostille Convention on 30 June 2026 and the Convention enters into force for Thailand on 28 February 2027. Until then, consular legalisation remains the route, and documents must be checked against the requirements of the receiving authority.
A provider who tells you that certification can be skipped, or that an uncertified copy will do for an official filing, is creating a risk for you. A notarial services attorney can certify signatures and copies within the scope that Thai practice allows, and a lawyer can tell you which route applies to your document and country.
Next step
If you are unsure whether your case is routine or needs legal review, start with our Free Initial Case Assessment. We will look at your situation, tell you which conditions apply, and give you a written scope. You can then Request a Formal Quotation and decide with full information, whether you choose us or another provider.
Related services
Frequently asked
Is it legal to use a visa agent in Thailand?
How do I check that a Thai company is real?
How do I check a Thai lawyer's licence?
Can any agent or lawyer promise my visa will be approved?
Should I leave my passport with an agent?
Sources & references
- Immigration Bureau — checked 2026-11-03
- Thai e-Visa – Ministry of Foreign Affairs — checked 2026-11-03
- Department of Business Development – DBD DataWarehouse — checked 2026-11-03
- Lawyers Council of Thailand — checked 2026-11-03
General information only, not legal advice. Immigration decisions rest with the Thai authorities.