[damper99]

No Tax or Duty shall be laid on Articles exported from any State. U.S. Const., Art.1, Sec. 9, Cl. 5.

True. The goods aren't getting a tax on export...you're getting taxed for importing them.

[Jim W N]

FYI, the original clause I sited, U.S. Const., Art. I, Sec. 9, Cl. 5, was incorrectly applied here.

The correct clause is Art. I Sec. 10, Cl. 2.