This is without adding other systemic diseases. Having a tax check is not a desirable outcome in Italy. One anecdote from a friend: he got a tax inspection in his company (in the construction sector). After two days of checks, nothing was found. But instead of being left alone, the inspectors told him this: "we haven't found anything, but since we have been checking for two days, we have to find something". In the end they agreed on faking some irregularities on the heating system and a 500€ fine.
Yes, this is just one episode, but not really an uncommon one, unfortunately.
I left my country 5 years ago and never looked back. There are so many better places in Europe, I strongly advice not to start a company in Italy.
as crazy as it may sound, this is true and happens all the time. I've got countless similar stories from friends who went through it.