Can I apply for a 30-day visa extension while already in my first 30 days in Thailand?

You can apply for a 30-day extension on your visa exempt entry, but the optimal timing may vary. Some suggest applying within the last week of your initial 30 days, while others indicate it might be acceptable to apply as early as 14 days prior to expiration, depending on the specific immigration office. Documents needed may include a TM30 form from your landlord and passport-sized photos.