While the attention is on COP26 and Glasgow, there was a less discussed meeting of international leaders going in Rome. On Sunday, the leaders of the G20 endorsed the OECD changes to international tax laws designed to crack down on multinational companies. Tax havens and profit shifting are key targets, as well as creating new rules for the digital era and ending the race to the bottom for corporate taxation. So, what's in the rules? Who are the winners and losers? And will it actually work?

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