Being "African" means nothing regarding a Thai visa. What nationality the baby has matters.

Even a newborn has to do exactly the same as an adult to travel in/out Thailand. If nationality is eligible for visa-exempt, just travel with a passport. If a proper visa is required, your baby has to apply for at least a tourist visa to enter Thailand with you.

Of course, your baby needs a passport to leave Thailand. Get her/his passport first. The baby (by a parent) brings a passport and birth certificate to leave (birth certificate is required as the passport has no entry stamp for the baby). Then get a proper visa with yours if required or enter Thailand on visa-exempt if eligible.

Once you get a new passport, you bring both old and new passports to enter Thailand every time until the visa itself expires, you will be stamped in for the same as visa states.

Even if your visa is longer than 12 2026, you will be stamped in until passport validity only with this current passport.

@Fred *****

, You need to do a 90-day report if you stay longer than 90 days continuously. You also need to check what documents are required at your local office. Generally, you bring your passport, a filled TM47 form, and a TM30 receipt. Some offices require copies of them or some more papers. Some require only your passport.

@М. ***

there are several photo & copy shops there. They know what you need for reasonable price.

The window for 90-day reporting in person at the immigration office is between 15 days before and 7 days after the due date.

Usually, you need an original and copy of your passport, filled TM.47 form, and TM.30 receipt, But these vary hugely by office.

I think Chiang Mai requires less.

Let's see what actually the Chiang Mai office requires you from others in CM.

@Matt *****

, correct. It wouldn't be an issue for now. But if you have extra time during your stay in Thailand, it's not a bad idea to get the documents from your previous school to cancel the old extension. I guess it's another story though.

It wouldn't be an issue for a short holiday. You wouldn't have a problem with entering Thailand again on tourist status just because of not having cancelled the previous extension. It could affect when you apply for a long-term extension, or even for a 30-day tourism extension at a few immigration offices.

You might be better off having proof of being a genuine tourist when you enter Thailand, such as proof of onward travel within given days, accommodation, etc.

@М. ***

, did you check the links I provided?

@М. ***

If you do it in person in Bangkok, this post is still workable.

7/

Or check the TM30 web system. There is a User's Guide link at the bottom of the login window.

@Marco *********

, right, once she leaves and re-enters Thailand, then she is no longer "currently" overstaying. She can apply for an in-country initial visa with the correct documents as long as she has 15 "working" days (usually 21 calendar days) at the Chiang Mai office.