As a writer I usually am paid by check. But this year I received a small check (under $75) for royalties and a 109--MISC form. Can I enter it as self-employment income?

[CatinaT1]

Yes, if you are an active Self-Employed writer, you would includes these royalties with your self-employed income.

See this article for further information: Tax Tips for Freelance Writers and Self-Published Authors