Nope. Actually 0% of the federal budget was derived from tariffs on exports, since the US government has never had a tariff on any export.
Tariffs are paid on imported goods, not exported goods. An Iowa farmer paid exactly the same tax (indirectly) on a tariffed product as an Alabama cotton planter.
Can we please put away this ignorant claim for good?
By the time of the Civil War, 75% of the Federal budget was derived from tariffs on exports (tobacco and cotton) from southern ports.
I DID NOT STATE THAT CORRECTLY>
By the time of the Civil War, 75% of the Federal budget was derived from tariffs on IMPORTS on goods from Europeans whose shippers were then BUYERS of (tobacco and cotton) from southern ports.