Thailand Visa Extension Guide and TM.7 Process

What most people call a "visa extension" is usually an application to extend their temporary permission to stay. It does not make the original visa valid for longer, and it is not automatic.

Rules checked: 3 September 2026. Immigration uses purpose-specific extension criteria and document lists. TM.7 is the standard application form for an extension of temporary stay, but the form is only one part of the application.

Start with the permitted-until date

Find the date Immigration gave you, not merely the expiry printed on the visa. That permitted-until date is the one an extension must protect.

Apply with time to fix a missing bank letter, copy, photograph or supporting document. Public holidays and local queues do not pause an expiring stay.

The reason controls the extension

Immigration publishes different requirements for tourism, employment, family, retirement, education, medical treatment and other reasons. A document used for a tourist extension does not establish a retirement or family extension.

Common parts of the process can include:

TM.7 and a recent photograph
passport and copies of relevant pages
proof of address or accommodation
evidence supporting the extension reason
the official application fee
additional local-office forms or acknowledgements

Use the office's current checklist.

Tourist and short-stay extensions

The extension available after a tourist visa or eligible exempt entry depends on the scheme and current Immigration policy. Do not assume every short entry receives the same extra period.

Check the tourist visa guide or exemption and VOA guide, then confirm the current extension route with Immigration.

For the general exemption introduced on 15 September 2026, the Washington embassy’s current guidance says an extension can add up to 30 days, at the immigration officer’s discretion. That statement applies to the general tourism exemption; it is not a promise for every passport agreement or entry category.

Tourism application fee and documents

Tourism checklist sources checked: 19 September 2026. Immigration’s published tourism-extension handbook lists a 1,900-baht application fee and these documents:

Your original passport and a copy.
A completed TM.7 application with a photograph attached.
The acknowledgement of penalties for a visa overstay.

The handbook directs applicants to the Immigration office responsible for where they live. Confirm its current passport-copy pages, address evidence and additional forms before visiting. The published handbook is a starting checklist, not confirmation that your particular entry qualifies for an extension.

Long-term extensions

Employment, family, retirement and education extensions rely on continuing evidence:

employer and work documents for employment
relationship and financial evidence for family
financial and route-specific evidence for retirement
institution and study evidence for education

An extension granted last year does not guarantee the next one. Requirements, evidence and circumstances can change.

Online e-Extension

Immigration advertises e-Extension for selected categories. The online service can begin the application, document and appointment process, but it does not cover every route or remove Immigration's decision.

Use only the service linked by an official Immigration page. Check the category, office coverage and service charges before starting.

After approval

Before leaving the counter:

Check the new permitted-until date.
Check any under-consideration or return date.
Ask whether 90-day reporting applies.
Check whether you need a re-entry permit before travel.
Keep the receipt and a copy of the application.

An extension does not automatically include re-entry permission.

If the application is refused or delayed

Follow the written instruction and dates given by Immigration. Submitting an application does not by itself extend your stay.

For an urgent or disputed case, speak directly to Immigration or a qualified Thai immigration lawyer.

Still choosing the basis for your stay? Compare Thailand visa routes or browse all visa and immigration guides.

Official sources

Confirm the route and document list with the office that will decide the application.