@Massimo ********

You do not change at an Embassy, You apply for a new Non Immigrant B visa, take a look at their website for the requirements

@Rachel *****

If you report late the fine is 2.000 Thb. No overstay stamp as it has nothing to do with overstay of your visa or extension.

You can not change the reason you applied for and got issued and even used your Non Immigrant Visa.

IF you visited during the first 90 days after entry the Immigration Office you might be able to cancel the big stamp with the text Extension of Stay permitted up to xx/xx/xx and apply for a new stamp based on being employed.

This needs cooperation of Immigration and Employer, best is to talk together.

You report your first time that you are 90 days inside Thailand in person between 15 days before until 7 days after due date.

You report your stay at the Immigration Office where your address is registered.

Passport.

Copy ID page

Copy TM6 Departure card

Copy page Admitted until stamp

Copy Visa page or e-mail print out

Blue House book of the owner

ID card of the owner

Copies Blue Housebook and ID card owner

It may change depending on which of the over 70 offices you like to use. Best option to contact them first.

2. Passport

@Mimi ****

Yes as you signed the documents to do this when you applied for the Extension. document is called the STM2 Form.

@Debs ***********************

You van NOT apply on line for an Extension of Stay.

Make life easy, apply for the Single entry Non Immigrant O visa based on being over 50 years of age and the Non Immigrant O visa based on being a dependent in September and use them to get 90 days on entry until half Jan 2023.

You have then 30 days time to deposit the money and apply both for the Extensions of Stay.

You can apply on line

No as the Non Immigrant O visa based on being over 50 years of age and willing to sit out the rest of your life in Thailand also known by shortcut retirement visa is employment prohibited and can not be used to convert into a Non Immigrant B visa for employment inside the country.

As soon as the 1 year Extension of Stay is stamped in your passport you can apply for a Re-Entry Permit:

1.000 thb for a single re-entry

3,800 Thb for multiple entries