I wanted to lease in Texas, but with the tax, the numbers did not make much sense unless you have a company where you can write it off. You are adding between $6000 and $10000 to the lease payments over 24-36 payments, then the way Tesla handles the Federal Tax credit, origination and disposal fees, it is that much worse.
Less hassle to just walk away at the end, but unless the current S & X take a massive nosedive on resale, you are better just buying in most cases (in Texas).
And if the car 'lives' in Texas, you will pay tax on the full amount.