Sorry for confusion, we are well aware of sales tax being paid ~ that is not the issue.
Typically sales tax of $4400 is divided into each monthly payment, it's not paid up front as as lump sum.
IL and CA are the same in that sales tax is only calculated on the portion of the vehicle being leased. Not the entire amount.
Maybe my brain isn't working right today, but in the quote i sent you, it says IL isn't like CA and they collect tax on the full amount of the car.