At the dealer paid taxes on the full purchase amount of the lease? (quite normal)
Then… checked your registration and saw that the amount of taxes paid to the DMV did not match what you paid at the dealer (as in, what was paid was dramatically lower like the Lessor took the tax break and didn’t pass it on to you).
It doesn’t matter if the trade-in was a lease or purchase.
I read a few stories of this happening to people and wondering if anyone here experienced this.