Short version: A deal makes you self-employed when a brand pays you for work as someone who isn't its employee, in something you do for income with some regularity. Self-employment tax starts once your net earnings from it reach $400 in a year.
Nobody hands you a certificate. There's no form that says "you are now a business." The IRS looks at what happened: who paid you, for what, how much say they had over the work, and whether you keep doing it.
That's the part most athletes never hear. The taxes on self-employment get explained a lot. The moment you cross into it, much less. Here is where the IRS draws each line, in its own words.
The IRS's own definition
The IRS's Self-Employed Individuals Tax Center lists three ways to be self-employed. The first one fits most deals: "You carry on a trade or business as a sole proprietor or an independent contractor."
The third one is wider: "You are otherwise in business for yourself (including in a part-time business or as a gig worker)." Part-time counts. A season of posts in between practice counts as a part-time business if the other tests are met.
No paperwork creates it. The IRS's page on sole proprietorships starts with one sentence: "A sole proprietor is someone who owns an unincorporated business by themselves." Unincorporated means no corporation or other entity was formed. Your name, doing paid work, is enough.
Line one: employee or not
The first question is whether the brand is your employer. The IRS's general rule: you're an independent contractor if the payer "has the right to control or direct only the result of the work and not what will be done and how it will be done."
A deal that says "two posts in March, approved before they go up" names a result. A job that tells you what to do each day, and how, looks more like employment. The IRS says whether someone is one or the other "depends on the facts in each case."
It sorts those facts into three groups. Behavioral: does the company control what you do and how. Financial: does the payer control the business side of the work. Relationship: are there written contracts or employee-type benefits.
Then it says it plainly: "If you are an independent contractor, then you are self-employed." And: "The earnings of a person who is working as an independent contractor are subject to self-employment tax."
The Taxpayer Advocate Service, the IRS's own independent office for taxpayers, goes further on its page for athletes: "Student-athletes are considered independent contractors for tax purposes."
Line two: a business, or a one-off
Being a non-employee is one test. The other is whether the work is a business at all. The Schedule C instructions put it in two parts: your "primary purpose" is "income or profit," and you're involved "with continuity and regularity."
Then the same instructions say what isn't one: "a sporadic activity, a not-for-profit activity, or a hobby does not qualify as a business." Sporadic means once in a while, with no pattern.
The 1099-NEC itself has a line for that case. Its Instructions for Recipient say that if you're not an employee but the pay "is not self-employment (SE) income (for example, it is income from a sporadic activity or a hobby)," it goes on the "Other income" line of Schedule 1.
That pay is still taxable. It's the self-employment tax that it stays out of. Where one paid appearance ends and a business begins is a question of facts, and the IRS draws no number for it.
The form the brand sends
A brand that pays you for services reports it on Form 1099-NEC, nonemployee compensation. The 2026 instructions list four conditions: you're not its employee, the payment was for services in its trade or business, you're an individual (or a partnership, an estate, or in some cases a corporation), and it paid you "at least $2,000 during the year."
That $2,000 is new. For years it was $600. The instructions say the line "increased to $2,000 and may be adjusted for inflation beginning in calendar year 2027." Your copy is due by January 31.
One thing we noticed: the Taxpayer Advocate's athlete page, last updated September 5, 2025, still says $600. The 2026 instructions from the IRS itself say $2,000, so that's the figure we use here.
A missing form changes nothing about the income. The IRS's Gig Economy Tax Center says income from part-time, temporary or side work goes on a tax return even when it isn't reported on "a Form 1099-K, 1099-MISC, 1099-NEC, W-2 or other income statement."
The $400 line
Here's where the tax itself starts. The IRS's self-employment tax page says it applies when "your net earnings from self-employment (excluding church employee income) were $400 or more."
"Net earnings from self-employment" is a defined number, not your deal total. Schedule SE starts from your net profit, meaning pay minus the costs of earning it, and multiplies it by 92.35%. If that result is under $400, line 4c says: "stop; you don't owe self-employment tax."
Work it backward and the line sits at about $433 of net profit. One $500 deal with no costs crosses it. Honestly, that's lower than most people guess.
One $500 deal with no costs is enough to cross the $400 line.
Above the line, the rate is 15.3%: 12.4% for Social Security and 2.9% for Medicare. An employee splits that with an employer. A self-employed person pays both halves. For 2026, the Social Security part stops at $184,500 of combined wages and net earnings.
What it adds up to
Put the pieces together. Paid for work, not as an employee, in something you keep doing for income: the IRS calls that self-employed. A business of one. Your name is the business.
What that means in dollars depends on your situation: your costs, your other income, your state, and whether someone claims you as a dependent. The figures here are the federal lines as the IRS states them today. Every source is linked at the bottom.
Questions people ask
Do I need an LLC or a license to be self-employed?
Not under the IRS's own definition. It says a sole proprietor is someone who owns an unincorporated business by themselves, and its list of who is self-employed includes a part-time business or a gig worker. No filing makes you one.
Is a single deal a business?
It depends on the facts. The Schedule C instructions say a business means income or profit as the main purpose plus continuity and regularity, and a sporadic activity or a hobby doesn't qualify. The 1099-NEC sends that kind of pay to the Other income line of Schedule 1 instead.
If no 1099 arrives, does the money still count?
Yes. The IRS says income from part-time or side work goes on a tax return even when no Form 1099-NEC, 1099-K, 1099-MISC or W-2 reports it. In 2026 a business sends a 1099-NEC only once it pays you $2,000 or more.
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