yes, several years ago If from the US your only option is to bank 800K to start with. Then later you can switch to using transfers of minimum 65K into Thailand each and every month.
What everyone seems to forget here is that many embassies are still issuing an income affidavit. Only a few stopped. Namely US, UK, AU, and a few others. Most that offered that service still do. And it's still accepted by thai immigration. No need to keep 800K or transfer in 65K per month if all you need to do is ask your embassy for that affidavit.
exactly what I would suggest. My Danish father does the same. No need to keep money in Thailand, or transfer in a minimum amount. Just show the affidavit.
Being from Belgium, check if your embassy here will issue an income affidavit showing more than 65K thai baht per month before tax. That will do it too. My Danish father doesn't need to keep 800K or transferring 65K per month (though he does anyway) because he can get the affidavit from the Danish Embassy. I don't think Belgium stopped making those, if they ever did.
every taxable person also has a 60.000 baht tax allowance per year. Married? If your spouse doesn't have income, you can use those 60K too. Kids? 30K per. Plus 2K per kid for education. Plus social security etc if that applies.. Your calculations are not correct. Even if just single, you don't pay one baht until you reach 210K/year.
Standard questions. Just answer and you should be fine. You have a proper visa for the duration and are not violating any terms of that visa by coming and going as much as you please for the validity of the visa. They are still allowed to ask though. And if for example they suspected that you are working while here on a tourist visa, they could refuse you entry. If you are a tourist, just answer the questions and go on.
a legal right to enter Thailand? 😂 Nope.. It's always up to the discretion of the immigration officer if they will let you in or not. A visa (or being eligible for a visa exempt stamp) is not a guarantee for entry. If they suspect you are violating the terms of whatever entry you are trying for, they absolutely can refuse you. You don't have any rights to enter Thailand if they refuse you. It's very rare though for a person with a proper visa to be refused. It is mostly because of excessive use of tourist visas or visa exempt entries.