tax id

i have a US account and i mostly receive small payment as F&F but some people due to their country can only make payment as G&S. Now it seems that i reached the $600 threshold and paypal requires tax id otherwise will hold 24% and holds payment This is the notice " This payment's on hold. Add...

If I start renting a second apartment in another EU country and register for residency there too, obtain their tax ID, will there be some reporting between the current and the new countries, if I don't indicate on tax return in the current country that I've moved out, and on the tax return of...