G7 leaders meeting in Britain will endorse U.S. President Joe Biden’s proposal for global minimum tax of at least 15% on corporations, White House national security adviser Jake Sullivan said on Twitter on Friday.

The U.S. Treasury in May proposed a global minimum corporate tax of at least 15% to try to end a downward spiral of corporate tax rates.

“America is rallying the world to make big multinational corporations pay their fair share so we can invest in our middle class at home,” Sullivan tweeted.

By supporting the move, major economies are aiming to discourage multinationals from shifting profits – and tax revenues – to low-tax countries regardless of where their sales are made.

Current global tax rules date back to the 1920s and struggle with multinational tech giants that sell services remotely and attribute much of their profits to intellectual property held in low-tax jurisdictions.

U.S. tech giants such as Facebook and Amazon could benefit from the agreement to create a global minimum 15% corporate tax rate if the final deal also scraps increasingly popular digital services taxes, according to industry lobbyists. https://reut.rs/359z1u1

The decision had been expected after G7 finance officials backed a tax rate of at least 15% during a meeting on June 5. The U.S. Treasury has said the G7’s endorsement will provide momentum for advancing negotiations towards a broader G20 finance meeting in July in Italy.

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