It's your money. You can do whatever you want with it. Just know that it will effect your next extension if you fail to meet immigration's requirements.

What is KB?

A Non-O visa is valid for 90 days. But that doesn't have anything to do with your extension. When you enter Thailand you will be stamped in for 90 days. That is what you need to extend.

You don't say what kind of non-O visa you applied for. But the only option for applying a non-O visa is the 1-year extension based on the same reason the non-O was issued. It can be applied for when you have 30 days or less left on your entry stamp. Some offices allow 45 days early.

If you are married to a Thai or have a half Thai child, you may also qualify for a 60 day "visiting Thai family" extension one time per visa.

There's no such thing as a 5 month extension.

What visa are you trying to extend? That will determine what extensions are available to you.

Just wanting to stay does not mean you can. You must qualify for an extension. Wanting to be in Thailand is not a reason for a long-term extension.

You shouldn't need that for DTV application. That's generally for applications inside of Thailand with an immigration office and a Thai bank account.

Each embassy sets their own requirements. I've read reports that Madrid might not be very user friendly. You may want to get clarification from them if they in fact require the money to be in Europe or even Spain specifically.

You can apply for an extension when you have 30 days or less left at most immigration offices, and 45 days or less left at some offices (Bangkok, Chiang Mai, Phuket, etc).

Specifically for tourist extension, there are a handful of offices that only allow you to apply during your last week. These include Pattaya, Koh Samui, and Koh Phangan.

Best visa hands down. Make sure you familiarize yourself with the locations of Fast Track for departures and arrivals at Suvarnabhumi. I always find they get confused when I tell them DTV, so I just say BOI with the page opened in my passport (if you're getting the stamp in your passport).

Also account for an extra 10-15 minutes if entering any border other than BKK, DMK or HKT airport. The officers will look at the visa and scratch their head before calling over a superior.

Finally, if you don't already have a Thai bank account, make sure you go onto the BOI LTR website as they have assistance for opening bank accounts.

@Sean *********

I assumed when the op stated "not worried about tm30" means they already have getting that done figured out.

Should be acceptable, and preferable, to most banks.