Student Visa Maintaining
After granting Non-Immigrant: Education Class or Non-ED (as described in Information About > Admissions > International Admission > How to get visa), students have to maintain their visa as follows
Be aware, only the letter of acceptance from the university doesn’t verify that you are a student. Therefore, Non-ED is valid only for 90 days when you first enter to Thailand.
For a single-entry visa holder
The date printed on visa label is the date which you must use to enter Thailand. It is not the date that you are allowed to stay. After your arrival, your period of stay is determined by the Immigration Office at the checkpoint. Normally, it will be valid only for 90 days when you first enter to Thailand.
Please carefully check the date on the stamp, as it is the date which you should get an extension of your staying period.
Within these 90 days, you have to register and pay tuition fee at the university. Consequently, at least 30 days in advance before your visa expiration, you have to submit a copy of your passport (personal page and visa stamped page) to International Affairs (IA) in order to issue a confirmation letter about your study and registration. Then, you can use the confirmation letter to apply, in person, for visa extension at the Office of Immigration Bureau. In addition, you need to prepare extra documents upon the requests from the Immigration Office. Basically, IA will prepare an extension documents and a map for you.
This time, you should be granted a visa for one-year stay or until the rest of your study period. The visa extension for the following year is also in the same technical procedures.