When should I apply for a 30-day visa extension in Thailand after receiving a 60-day stamp?

Here now got 60 days and extended 30 more at Jontien 1900 bht

In Jomtien I had to wait until the last day. Tried to go a few days early and after they looked at all the things you have to do making sure it was right I was told to come back the day of expiration. One other time I had a flight to Phuket a few days before it was due and I was going to Phuket for a while a week and the Donkey Hole told me to bad! I had to pay an agent to get it done! They can be real Donkey Hole there!

Anytime, it goes on top of your exemption 🙏🇹🇭

At most immigration offices you can apply when you have 30 days or less left on your existing stamp. A few allow 45 days or less but easier to just stick to the 30 day rule as it'll be safer.

Unfortunately there are also a few offices that only allow you to apply for a tourist extension during the last week of your stamp. These offices include Jomtien/Pattaya, Koh Samui and Kob Phangan.

Requirements vary by immigration office but here are some common requirements.

Varies between immigrations, some allows you to apply within the last 45 days, most within the last 30 days, but some only within the last week. The extension will always be added to your last day anyway. You can apply where you are at date and your latest TM.30 address registration is registered.

@Colin *******

yes. The 30 day extension costs ฿1900. Don't forget to do a TM30 within 24 hours of entering Thailand and take a copy to immigration