Tax ID number or individual taxpayer number (ІНН) is possible to get in the local tax authority. To obtain it a foreigner should submit a translated and notarized copy of his passport, copy of the page with entrance stamp to Ukraine and an application. Also, a foreigner should provide information about his home address, contact details, citizenship, place, and date of birth, etc.
It takes 5 working days to get a tax ID number.
Usually, foreigner issues a notarized power of attorney to the lawyer, who applies for tax ID number on his behalf.
Tax id number is needed in order to become a founder/shareholder or employee of the company in Ukraine, register as a private entrepreneur, open a bank account, buy a property etc.