By Andrea Shalal

DUBLIN, (Reuters) – U.S. Treasury secretary Janet Yellen stated that she expects U.S. technology giants to support broadening the agreement of nearly 140 countries to reallocate taxing rights as part of a broader treaty on global taxes. She said the effect on U.S. businesses should not be significant.

Yellen said to Reuters Sunday that support by big international players should foster bipartisan support for Pillar 1 (the tax deal negotiated through the Organization for Economic Cooperation and Development) among U.S. lawmakers.

This weekend, leaders of 20 of the largest economies in the world (G20), backed the overall OECD agreement. It also requires the implementation of a minimum global corporate tax of 15% by 2023.

Yellen stated that the agreement’s minimum tax would be a welcome assurance for big internet companies such as Alphabet Inc’s Google and Amazon.com Inc (NASDAQ) Facebook Inc (NASDAQ) – By ending the web of taxation on digital services they have in multiple countries, this could increase support for the wider deal.

According to Treasury officials, the U.S. is expected to approve the international minimum tax portion of the agreement as part of a wide, Democratic-only spending bill that’s making its way through Congress.

Although the finalization of the second component regarding tax reallocation is ongoing, separate passage will be required.

Although the bill has drawn some criticism from Republican legislators as well as non-digital firms, Yellen expressed confidence that Congress would “come around” given its support by large companies.

The senior Senate Republicans argued that the approach accepted in principle by OECD would have to be accompanied by a new international treaty on tax, which would need Senate ratification.

“I think they’re going to be telling members of Congress that they like this agreement and they can live with it,” Yellen said of the tech companies. It is more helpful to have business support than lobbying against it, according to me.

Initial calculations of the Treasury Department found little harm to multinational corporations with U.S. headquarters, even if they were to be taxed elsewhere.

“We’ve done some calculations that suggest the impact is small,” she said in an interview en route to Dublin from the G20 meetings in Rome. It all depends on where exactly the revenue comes from.

Yellen arrived in Ireland late Sunday night. This low-tax nation overcame its domestic reservations and backed the global mininum deal on tax. It will now have to increase its rate by 15%, from 12.5%.

Yellen stated that she believed the Irish economy could weather any change due to its highly educated workforce, positive business environment and Ireland’s position as an only English-speaking member of the European Union.

“There’s real economic activity that goes on in Ireland. It’s not just a tax haven,” she said. “I believe Ireland will continue to be in an extremely favorable place.”