Hi all This is not a thread about how the Federal tax credit works for EV purchasers, or how the phaseout works. What this thread is asking is, for a person who thinks they might take delivery of their Model3 in 2017, how should that person go about planning their Federal tax liabilities in order to maximize the $7500 tax credit? Meaning, according to Intuit, if your Federal tax liability is less than $7500 for the year in which you receive the tax credit, you don't get a refund of the difference and you don't get to carry it to the next year. I imagine most people are like myself where I may get a refund or owe a grand or two, but I don't think most people in normal years would owe $7500. So how to make sure you 'owe' $7500 in 2017 is tricky, especially since the tax payer in my question's scenario can't be sure he'd take delivery of the car (and the tax credit) in this tax year? Are there wise things that can be done on relatively short notice that would create a large tax liability? For example, if a person realizes in October 2017 that they will be getting delivery of the car and tax credit in 2017, there's not much time to figure out how to maximize the usefulness of the tax credit. Again, because if your tax liability is less than $7500, you're not fully using the credit. I guess one option is to stop withholding federal taxes from a salary paycheck. Would modifying your W4 be the right way to do that? Do companies typically allow their employees to make several modifications to withholding information on the W4 within a short period of time? This isn't really an issue for most people who currently have reservations because it's clear that delivery won't be in 2017. But what about the 40k reservations that have a good chance of being delivered +/- 4 weeks of Jan 1?