PARIS, (Reuters) –G20 finance ministers recommitted to implementing a global restructuring of cross-border corporate tax rules in 2017 in spite of fears that it could be difficult to meet the deadline.

This deadline is generally considered ambitious due to the fact that U.S. President Joe Biden is having trouble passing legislation to bring U.S. laws in line with global agreements.

Nearly 140 countries came to an agreement last October on a 15% minimum tax rate for multinational companies. They also agreed to make it more difficult for companies such as Google, Amazon and Facebook to avoid paying tax by booking their profits in low tax jurisdictions.

Organisation for Economic Cooperation and Development in Paris is working out the technical details so the countries are able to add the new rules to their laws next year.

G20 Finance Ministers declared in a joint statement that after Friday’s meeting, they had committed to ensure the new rules are in place at all levels by 2023.

It took several years for tax agreements that were less extensive to implement, as many countries failed to update their tax codes.

“The main question is how we implement the political agreement. During the meeting, Bruno Le Maire, French Finance Minister, stated that there is no turning back and we must move forward.

Christian Lindner, German Finance Minister, stated that “It’s an unquestionably ambitious timeline but it’s also a major project for international fiscal justice.”

Le Maire invited G20 colleagues to Paris for the June signing of the multilateral new legal framework. The agreement’s first Pillar makes it difficult to place profits in low-tax nations.