This weekend, the G7 finance ministers will meet in London to discuss two global tax issues.
One is about a global minimum tax for companies and the other is about whether the world's large multinational companies in the future will have to pay the tax in the country where they sell their goods.
- They want to agree on a minimum tax rate, to avoid countries competing with taxes, says Åsa Hansson, associate professor and economist at Lund University.
"One millimeter from a historic agreement"
Rich countries have struggled for years to agree on a way to get more tax from large multinational companies such as Google, Amazon and Facebook, which often place their offices in low-tax countries.
"We are only a millimeter away from a historic agreement," French Finance Minister Bruno Le Maire told the BBC.
G7 countries hope that an "ambitious" agreement on a global minimum level for corporate taxes can be reached in July.
See three questions about global minimum tax for companies in the clip above.