@DLWoodrum , as I said if this is an income stream that is NOT incidental, then you need to enter / report this as Schedule-C ( self-Employment ) income. And since the work is being performed in the US , it is US sourced income ---- it is immaterial whom or where the payment is made. If the monies came from say Shanghai and got deposited in your bank account in Singapore, it is still US sourced income for you.
Sorry for the confusion.
Is there more I can do for you?
