In a statement laying out its take on the agreement, the US administration said Iran would not face further sanctions within the six months if it abides by its side of the deal.
"In total, the approximately USD 7 billion in relief is a fraction of the costs that Iran will continue to incur during this first phase under the sanctions that will remain in place," it said.
"The vast majority of Iran's approximately USD 100 billion in foreign exchange holdings are inaccessible or restricted by sanctions," the White House statement added.
But the White House promised that Washington and its allies would "not impose new nuclear-related sanctions for six months, if Iran abides by its commitments under this deal, to the extent permissible within their political systems."
In particular, it explained, the sanctions relief would lessen the pressure on Iran's automotive and petrochemical sectors and on the trade in precious metals.