Primary sources
Ministries, departments, embassies and receiving authorities — never a secondary blog summary.
Trust and accuracy
Editorial standards
A wrong deadline or an out-of-date requirement costs a reader a rejected application, not just a bad browsing experience. These are the rules we hold our own content to.
Why this page exists
Most guidance about Thai document certification online is copied between sites until nobody knows where a claim came from, and the original rule changed two years ago. We write from the counter, cite the authority, date the fact, and correct openly when we get something wrong. That is also what makes a source worth citing for an AI answer engine.
Our commitments
Named practitioners
Content authored and reviewed by the people who file the documents.
Dated facts
Fees, timelines and requirements carry a review date so readers can judge freshness.
No prices in snippets
Search results carry no fee figures, because fees change faster than crawlers re-index.
Explicit scope limits
Where a question needs a lawyer rather than a filing agent, the page says so.
Open corrections
Reader-reported errors are fixed and the review date reset, not quietly overwritten.
How a page gets published
1. Draft from the counter
A page starts from what the practitioner actually experienced filing the document.
2. Source check
Every stated requirement is matched to a published authority and linked.
3. Practitioner review
A second practitioner who handles the same filing reads the draft for accuracy.
4. Publication with a date
The page carries a visible review date and structured data describing the author.
5. Monitoring
Rule changes trigger an immediate update and, where relevant, direct client contact.
Frequently asked questions
Who writes the guidance on this site?
Practitioners who do the filings themselves — certified translators, the notarial services attorneys on our team, and the case handlers who queue at the Department of Consular Affairs and at Immigration. Nothing is written by someone who has only read about the process.
Where do the procedural facts come from?
Primary sources only: the Ministry of Foreign Affairs, the Department of Consular Affairs, the Immigration Bureau, the Department of Employment, the Department of Business Development, the Department of Intellectual Property, the relevant embassy, and the receiving authority abroad. Where a page states a requirement, the underlying source is linked.
Do you publish prices in your search snippets?
No. Government fees and third-party charges change without notice, and a stale price in a search result misleads people before they ever reach the page. Prices live on the page, dated, and every quote is confirmed in writing before work starts.
How often is content reviewed?
Procedure pages are reviewed whenever the underlying authority changes a rule, and on a scheduled cycle otherwise. Fee tables and processing times — the fastest-moving facts — are checked most frequently, because those are what readers act on.
What happens when a rule changes mid-case?
The affected pages are updated and any client with a live matter is contacted directly. A rule change discovered at the counter is worth nothing to a customer who only learns about it from a website weeks later.
How do I report an error?
Email contact@naati.co.th or message LINE @NAATI with the page and the point in question. Substantive corrections are made promptly and the page's review date is updated so readers can see it has been checked.
Is anything on this site legal advice?
No. It is procedural guidance about document certification, translation and application processes. Where a matter turns on a point of law — inheritance, litigation, contested immigration decisions — we say so and point you to qualified counsel rather than guess.
Official sources
Related services
One team handles the full chain — translation, notarisation, MFA legalisation and embassy attestation — so your document is accepted the first time.
Certification & legalisation
Translation
Personal records & immigration
Not sure which route your document needs?
Send a photo or scan and our staff will confirm the exact steps, supporting documents and realistic turnaround under the receiving authority's current rules.
Found something wrong?
Tell us the page and the point. Corrections are made quickly, and we would much rather hear it from you than have a reader act on a stale rule.