130 countries have agreed on a comprehensive tax reform.
This includes a global minimum tax of 15 percent, it said on Thursday in a joint statement by the states.
They had been negotiating this for years under the umbrella of the industrialized nations organization OECD.
Some outstanding details should be clarified by October.
During a visit to Washington, Federal Finance Minister Olaf Scholz spoke of colossal progress.
"The matter is now on the track." It is the biggest breakthrough on the international stage in the past 20 years.
For Germany, the agreement will ultimately mean more tax revenue.
The seven leading industrialized countries (G7) had recently agreed on a basic framework - with a minimum tax of 15 percent for globally active companies and a new distribution of the tax revenues of the 100 largest and most profitable corporations in favor of countries in which these companies do a lot of business .
Large emerging markets in particular should benefit from this.
With the planned reform of the century by the OECD, the tax rules are to be adapted to the digital age. For decades, global corporations have been cleverly transferring profits to countries that are attracting them with ever lower tax rates - and in the end they pay comparatively little taxes, usually significantly less than medium-sized companies, for example. Technology companies in particular shift profits from patents, software or license income that are based on intellectual property particularly frequently.