Gouda, SA S.A

Essay

Gouda, S.A., a Belgium corporation, received the following sources of income during 2018:
$10,000 interest income from a loan to its 100 percent owned Dutch subsidiary
$20,000 dividend income from its 100 percent owned U.S. subsidiary
$30,000 royalty income from its Irish subsidiary for use of a trademark outside the United States
$40,000 rent income from its Canadian subsidiary for use of a warehouse located in Wisconsin
$5,000 capital gain from sale of stock in its 40 percent owned New Zealand joint venture. Title passed in New Zealand.
What amount of U.S. source income does Gouda have in 2018?