Polish ambassy in Thailand is a nightmare. Rude and bully people. But if you apply for pass in Poland you will get served by those who know who pay they wages and ypu will get your pass in 7 to 14 days.
- In general income should be taxed at the source ie country where your employer is, if you have income from properties where properties are etc.
- If you have no tax residence, it is a country of your nationality (as in you country you are not able to show to tax authorities that you are tax resident somewhere else).
- if you act as a business may be where your businnes is based
etc
- if your income comes from illegal source, taxing it is called money laundering and this would be likely reason for visa to be refused. If your income is legal but untaxed you have to prove it is legal .... otherwise do you thin Thailand will give you visa if there is a litte chance that you will contribute to its tax sysem?
But ask your accountant as Im not accountant. Look at anti dual taxation agreements between Thailand and your country- it may give you a clues on how Thai autorities would consider your income.
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