Thinking about making some energy efficiency improvements for your home or considering buying a new or used electric car? You may need to act fast to take advantage of a slew of energy tax credits that are expiring. 

House Resolution 1, better known as the One Big Beautiful Bill, expedited the expiration dates for eight different energy tax credits ahead of when they were originally set to sunset, according to the Internal Revenue Service. 

Three credits for new or previously owned clean energy vehicles will no longer be available for any vehicle purchased after Sept. 30. 

An energy efficient home improvement and residential clean energy credits will not be provided for any property where that work is completed after Dec. 31. 

The remaining three credits are related to new residential and commercial energy efficiency, as well as installation of alternative energy fueling facilities. 

The IRS has published an FAQ document online to help taxpayers navigate the recent changes.