I need a tax code and have to open a

Here is the information http://www1.agenziaentrate.gov.it/english/italian_taxation/tax_code.htmif you are outside Italy, through your nearest Italian Consulate. In Italy through the Agenzia Delle  Entrate  (Taxation Office)

Someone in Italy can do it with a delega, usually your estate agent.  It takes 10 mins to do at the tax office, everything depends on the queues, but you can now book an appointment online.   

If you are in Italy ,  you can to go to an bank office with passport and codice fiscale and open a bank account for foreigner - If you do not are in Italy , i can maito you the coordinates of an bank agent , in tuscany , that can provide you - FREE an Charge - a not expenses bank account ,