Thailand Taxes.
It is my understanding that anyone who stays in Thailand a total 180 day (could be multiple times) during the tax year and brings money to Thailand or puts money into at Thai Bank must get a tax ID and file at Thailand tax return.
If your country has a double tax agreement with Thailand you can get a tax exemption.
Does anyone have any idea how the tax exemption will work and what documents you will need to provide?
Will Thailand charge you a tax if they don't think you paid enough tax on the money you brought into Thailand?
Some money in the US are tax exempt so how will the Thai government decide whether the money I brought into Thailand was taxed or not?
We call the Thailand Revenue Department and we're not able to get any answers.
I'm not willing to provide Thailand all my financial information. At transcript of my US tax return is all I would be willing to provide.
TLDR : Answer Summary
Expats in Thailand who stay for a total of 180 days in a tax year and bring money into Thailand or deposit funds in a Thai bank are generally required to obtain a tax ID and file a tax return. Those from countries with double tax agreements may be eligible for tax exemptions. However, there are uncertainties regarding the specific regulations, documentation needed for exemptions, and how Thailand will assess whether taxes have been paid on imported funds. Current discussions suggest a government focus on untaxed income and potential changes being driven by anti-money laundering initiatives, but detailed regulations are still pending.