Who pays what in federal taxes?

In principle, we all have to pay taxes. That includes individuals and corporations. The graph attempts to answer the question of how much each source provides in federal taxes. It’s clear that individuals pay the lion’s share (which doesn’t include social security contributions), and the second-largest source is corporations.
The third-largest source is tariffs on imported goods and taxes levied at production. Now, who precisely “pays” these types of taxes is more difficult to determine, as it depends on the price elasticities involved. Let’s say a tariff increases or a new tariff is imposed. Does the seller absorb it or does the seller roll it over to consumers through a higher price tag? The answer depends on how sensitive each party is to price changes.
The smallest source of taxes is the entities abroad category. These entities may be expats filing their income taxes or businesses with some ties to the U.S.

Federal Reserve Source