What Do I Need for My First 30-Day Visa Extension in Thailand?

To apply for your first 30-day extension of stay at the immigration office in Thailand with a visa exempt 30-day stay, you will need to bring several documents including your passport, copies of the data page and entry stamp, the TM6 departure card, a filled-out TM7 application form (available at the immigration office), and a passport-sized photo. The fee for the extension is 1900 Baht. It's recommended to avoid peak times at the immigration office due to high traffic and consider using local copy shops for documents.