A Treasury official says an international tax deal would help make globalization work.

The Biden government argued on Wednesday why multinational corporations should support an international tax treaty aimed at tackling tax evasion, a threat to business in recent years.

The comments made by Itai Grinberg, a US Treasury official who represents the United States in the negotiations, provided a new rationale for the deal, which would entail the largest overhaul of the international tax system in decades. When the deal goes into effect, it would introduce a minimum global tax of at least 15 percent and allow countries to levy new taxes on the goods and services of the largest and most profitable companies, regardless of where the companies are located.

But the Biden government sees the deal as more than an end to the “race to the bottom” in corporate taxes that tax havens have benefited from.

“We believe this deal is an integral part of restoring the foundation for the continued success of the liberal international economic order as we have known it for the past 75 years,” said Grinberg, deputy assistant finance minister for multilateral taxation, the National Association for Business Studies .

The Biden administration has pushed for agreement, as part of their plan to increase taxes on businesses in the United States without making them less competitive globally, and get dozens of countries to cut new taxes on digital services, targeting American tech companies. More than 130 countries have signed a framework of the agreement negotiated through the Organization for Economic Co-operation and Development.

Although large corporations were concerned about the prospect of higher taxes, Mr. Grinberg argued that they would have more to gain from a tax deal. He suggested that a lack of clarity and consensus in the international tax system leads to increased double taxation which, if not controlled, could lead companies to withdraw cross-border investments.

“The impact of these reduced transactions would extend well beyond large corporations and their shareholders because multinational corporations are the backbone of the success of globalization,” said Grinberg. “And none of that would be good, because while globalization certainly has its weaknesses, globalization has benefited not just multinational corporations, but people in the United States and around the world.”

The Biden administration has argued that its international tax proposals would bring more justice to the United States and economies around the world. They would do this, it is said, by putting an end to a system that allows corporations to pay less taxes than middle class workers and gives nations more tax revenue to spend on infrastructure and other public goods. Mr Grinberg said this was in the interests of businesses, arguing that feeling injustice creates a landscape that is problematic for global corporations.

“Could global multinational corporations be successful if economic populism, protectionism and anti-immigration sentiment became the order of the day?” He said.

Much remains to be done until October, when international negotiators hope to finalize the pact. Ireland, Estonia and Hungary have yet to join the agreement and their opposition could prevent the European Union from moving forward with the plan.

The Biden administration hopes Congress will approve its proposed changes to the US global minimum tax this year and that it will consider the proposal next year to allow other countries to tax America’s large multinational corporations after the engineering work on this plan are completed.

In his remarks, Mr. Grinberg said it was important to ensure that the agreement contains a dispute settlement system and a mechanism to ensure that it is binding.

“Getting it right will be an integral part of embedding this agreement in a multilateral convention,” he said.