Yes, if you purchase the eligible electric vehicle during the tax year you can use the credit for that tax year. If the credit reduces your tax liability to zero any further credit is lost. This is not a once in a lifetime credit.
See the IRS instructions for Form 8936 Qualified Plug-in Electric Drive Motor Vehicle Credit - https://www.irs.gov/instructions/i8936
But keep in mind that the tax law can change at any time.
Can I purchase two EVs in one year and claim the credit on each one? This assumes I have at least $15,000 in federal tax liability.
@226Ra wrote:
Can I purchase two EVs in one year and claim the credit on each one? This assumes I have at least $15,000 in federal tax liability.
Yes, you can if the EV's are eligible for the credit.
See this website - https://www.fueleconomy.gov/feg/taxevb.shtml