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How early can I apply for a one-year visa extension at Samut Prakan Immigration?

visa extension Samut Prakan Immigration Thailand visa rules NON-O visa immigration process expat advice

Feb 27, 2025

11 days ago

Sean **********

ORIGINAL POSTER

I could not get any information by phone because the number I called for Samut Prakan Immigration office was set in automatic menu  loop until it eventually hangs up. so  I went there  today to get it. My 1 year extension expires at end of April and I have to back to the US  at end of March to take care of a few things. I knew that most  offered the extension at 30 days  before expiration. And few at 45 days before.  FYI , Samut Prakan immigration allows extensions 45 days before expiration. Just wanted that info out there for anyone to use it.

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TLDR : Answer Summary

A user reported difficulties obtaining information over the phone from the Samut Prakan Immigration office, which led them to visit in person. They confirmed that it is possible to apply for a 1-year visa extension 45 days before the current visa expires. This information is particularly useful for expats needing to plan their applications as they prepare for travel.

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Nongnuch ********

so we get it that you can apply for the extension no sooner than mid March

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