It also delayed the most contentious issue in the talks — a demand by American officials that some companies be allowed to choose whether or not to be taxed under any new international system — until the end of the negotiations.

“Resolution of this issue is crucial to reaching consensus,” negotiators said in a consensus statement released on Friday.

The talks carry high financial stakes for large companies that operate in multiple countries.

Countries like France and Britain have approved so-called digital taxes that hit large tech companies, like Google and Amazon, that have large online footprints in their countries but face little tax liability because their physical operations are concentrated elsewhere. The United States has objected to those taxes as discriminatory against American firms, which would be among those most affected, and it has threatened tariffs on imports from countries that impose the taxes.

American and French officials reached a temporary truce on the issue last week in Davos, Switzerland, with the Trump administration pausing its tariff threat and the French delaying collection of the digital tax this year while the sides seek a deal through the O.E.C.D.