It's almost the end of the year so put all your ducks in a row so you will get the full EV tax credit. It seems like the new tax code benefited families with kids. So if your income is less than $400K combined, you'll get $2000/child under 17. The standard deduction for married couples increased to $24,000 from $12,700. You can use TurboTax (or probably any other program) online for free to estimate your 2018 tax liability. You'll only need to pay to file your taxes. They do not have the EV tax credit available yet, but just use it to calculate your tax liability. If you don't have enough tax liability contact a tax pro to see what options you have like Roth IRA conversion.