What do you mean they have 5 years? What happens after that?
I have not filed a tax declaration in Poland since 2015. Don’t tell me I have to pay capital gains tax, now? I have no real estate in Poland, I closed my bank account in 2015, my only significant others are my parents, not a member anywhere, don’t have any work contract in Poland since 2015. I guess I will continue not doing anything, and if they come one day, then I will have to look for a lawyer.
What other choice do I have? Can I seek any confirmation from the Polish authorities, that yes, since I moved to Switzerland they will cancel my Polish tax domicile?