.... and in Samui and in Pattaya and in Hua Hin. many Farangs are using nominee to buy land and land with house. It's illegal and there is a gov crack down underway. Do not buy a house owned by a company.
Firstly, remember that after 179 day you are tax resident in Thailand if you are doing income drawdown on your 401k, whilst it is tax sheltered in America it probably is not so in Thailand as its an equity-based investment and therefore probably taxable. I am not sure about the validity of your US health insurance, I believe Medicade etc is. Problem we all have is this is a new tax system, and no one knows exactly how it work, even the tax office. For safety I would take advice from a Thai CPA. Setting up company's using nominees has become unsafe.
as far as taxing foreigner on overseas remittances they have never done it before, remember they have a new government now and sometimes a new broom sweeps clean. May be there will be a U-turn but as of today there is no sign of that.
Boaz, there are many things we are struggling to work out how to comply with this, the Thai gov has a habit of this kind of thing. You are required to work out what you owe and pay it. There is a 200% penalty for not filling.
/FOREIGNERS_PAY_TAX2024.pdf you need also to consult the relevant DTA. https://www.rd.go.th/english/766.html additional you have some in country allowances. https://www.rd.go.th/english/766.html please share as many are not aware or still in denial.