I.R.S.
ORG
I.R.S.
Mr. Adams wasn't sure how much more money he and his wife would save the I.R.S. hadn't filled in all the details but early estimates suggested that the Prius's credit could be as high as $3,200. Michelle D. Lamishaw, who is an I.R.S. spokeswoman, could not say when the agency would provide more details but encouraged taxpayers to keep checking their website. Mr. Nadel said that the I.R.S. hasn't been clear on that, and that wasn't specifically in this law, but all of the underlying tax law should apply there.