Income reporting for Ukrainian with U4U program and CZ tax residency

Hello. I have a question about taxes for those who are on the u4u program.

 

I arrived on May 15, 2023, and I have a question:

Am I a tax resident for 2023 and do I need to submit a declaration?

The issue is further complicated by the fact that I have a private business (Software contractor) in the Czech Republic and have been paying taxes to the Czech Republic all this time. (all 2023 year)

I would not like to pay taxes 2 times in CZ and USA, please tell me how to do it?