Most US Federal revenues used to come from tariffs

But not anymore.  At times in the 19th Century, over 90% of U.S. federal revenues came from tariffs; now they account for about 1% of its income.    The Progressive Policy Institute (PPI) explains what happened: Tariffs Are 1 Percent Of Total Tax Revenues.

Many developing countries still raise a large part of their revenues from tariffs.  For example, Mauritius raises about 29% of its revenues from tariffs.

This can create fiscal challenges for these countries if they commit to reducing import tariffs as part of a Doha Round agreement.   This short South Centre analytical note available at this link looks at the issue from the point of view of these countries: "Revenue Implications of WTO NAMA Tariff Reduction ".