Tourist visa extension: how early can it be done?

[twwy123]

My 60-day tourist visa entry stamp expires soon (let's say Dec 20), and I need to renew it. How far ahead can I go to the Immigration office to do this? If I extend it, on, say, Dec 15th, does the 30-day extension start immediately on that date, or on the entry stamp expiry date?

Apologies if this has been asked before (most likely has), but I couldn't find a definite answer in a quick search.

Also, what documents are usually required? Most sources claim I just need to fill out the form, present my passport and pay the fee (that has been the case many years back when I've last done this). However, some say various other documents (like a rental agreement, hotel booking, even apartment owner's ID card) might be needed.

[elviajero]

• Usually up to 2 weeks early is possible.

The extension will start from when the existing permission to stay expires. So nothing lost by applying early.

TM7 form. Copies passport photo page, entry stamp, departure card. Photo. 1,900 baht.

Some offices are asking for proof of residence or a TM30 completed if privately renting.

[onetime]

• Usually up to 2 weeks early is possible.
• The extension will start from when the existing permission to stay expires. So nothing lost by applying early.
• TM7 form. Copies passport photo page, entry stamp, departure card. Photo. 1,900 baht.
• Some offices are asking for proof of residence or a TM30 completed if privately renting.

I'm in the same sitch. I'm going today. 10 days early. Will post results.

[twwy123]

• Some offices are asking for proof of residence or a TM30 completed if privately renting.

Thank you. Does the Bangkok office (Chaeng Wattana) ask for this?

[elviajero]

• Some offices are asking for proof of residence or a TM30 completed if privately renting.

Thank you. Does the Bangkok office (Chaeng Wattana) ask for this?

No, not that I'm aware of.

[onetime]

I went today, the 14th. My visa needs an extension on the 25th. Nonthaburi would not do it early. I have to go back....

[elviajero]

I went today, the 14th. My visa needs an extension on the 25th. Nonthaburi would not do it early. I have to go back....

I usually recommend applying within the last 7 days, but some offices will do it earlier. Seems yours isn't one of them.

[DanceAllNight]

once in Chiang Mai i applied 3 weeks before the visa was expiring without any problem.