If you want to buy an electric vehicle—or solar panels or a heat pump or home battery—there’s a short window of time to make use of the existing federal tax credits currently available. Under the Inflation Reduction Act, the tax credits were supposed to last 10 years. Now, thanks to the Republican One Big Beautiful Bill, there are only about 10 weeks left to claim the EV tax credits before they disappear. Other clean energy tax credits will expire at the end of the year. Here’s what you need to know if you want to make use of them to help cut emissions and save on your energy bills.