There won’t be any black mark on this. And if you take the initiative to report to the IO that the overstay of one day is due to misunderstanding of calculation, they may as well waive ur 500 baht penalty.
But if you are not a Chinese and are not holding a Chinese passport, will there be a risk that you may not be granted the 60 day covid visa extension, if you can return to your home country?
Because Covid-19 visa extension is designed for people who can’t return to their home country.
Are the 800K must be new money? I am asking because I had remitted funds from overseas into Thailand years ago to buy condos, and now I have sold one of them and the proceeds sit into my Thai bank account. I have all the proof of these transactions. I tend to give up my non OA when it expires and shift to apply for a non O here in Thailand. Will they accept my funds already existing in my Thai bank account? Or do I have to remit another fresh 800K into the account?