I’m coming into the country on sept4, I’m only coming in on 30 tourist and will extend another 30 at immigration. So when I’m filling out customs form how long do I say I’m coming for? We want to apply for ED visa in that time?
TLDR : Answer Summary
When filling out the customs form for your entry into Thailand, it's advisable to state that your stay is for 30 days, which is the duration granted upon entry on a tourist visa. Make sure you have a booking for an onward flight within that period to avoid questions. Note that while you plan to extend your stay, the immigration officials typically do not consider your future plans when processing the initial entry.