@Roberto ********

for people leaving in the Kingdom for more than 180 days in a solar year, any money transfer from abroad (remittance) is considered as an income as shall be declared. Whether to pay tax or not depends on many factors. If there is a DTA with your country and if tax have been already paid in the country of origin, which shall be demonstrated, you could not be requested to pay anything or to pay only the difference between the already paid wrt the tax to be paid in Thailand.

On this matter the situation is quite complicated.

Interesting. The fact the money last step is from a Thai bank Wise partner could be a loophole to avoid taxation on money coming from abroad on our account.

The immigratio does not care much of your overstay. Just pay 500THB per day and getting a special stamp on the passaport. Nothing serious

Instead, if the Police catches you in overstay, regardless it is 1 day or 1 year, you are considered a criminal and might be treathed accordingly. (It's a matter of luck on what can happen nevertheless, if you are involved in an accident or whatever issue, the situation will definitely getting worse.