[proberts]

There's no minimum amount of trade specified in the regulations and the answer depends in part on other factors (such as how active the foreign and U.S. companies are and whether they employees and funding) but the minimum annual trade is generally understood to be at least $100K/$150K.

[kingstoned]

Can you have just one US client like a marketplace or network that gives you monthly payouts totalling $150k a year? The client is a famous US based company.