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How to determine whether 1099-MISC income is from self-employment?
These kinds of questions can be rather tricky. I've struggled with this sort of thing in the past when I had income from a hobby, and I wanted to ensure that it was indeed "hobby income" and I didn't need to call it "self-employment". Here are a few resources from the IRS: There's a lot of overlap among these resources, of course. Here's the relevant portion of Publication 535, which I think is reasonable guidance on how the IRS looks at things: In determining whether you are carrying on an activity for profit, several factors are taken into account. No one factor alone is decisive. Among the factors to consider are whether: Most of the guidance looks to be centered around what one would need to do to convince the IRS that an activity actually is a business, because then one can deduct the "business expenses", even if that brings the total "business income" negative (and I'm guessing that's a fraud problem the IRS needs to deal with more often). There's not nearly as much about how to convince the IRS that an activity isn't a business and thus can be thrown into "Other Income" instead of needing to pay self-employment tax. Presumably the same principles should apply going either way, though. If after reading through the information they provide, you decide in good faith that your activity is really just "Other income" and not "a business you're in on the side", I would find it likely that the IRS would agree with you if they ever questioned you on it and you provided your reasoning, assuming your reasoning is reasonable. (Though it's always possible that reasonable people could end up disagreeing on some things even given the same set of facts.) Just keep good records about what you did and why, and don't get too panicked about it once you've done your due diligence. Just file based on all the information you know.