No. You owe self-employment tax once your net earnings from self-employment reach $400 for the year, and not a dollar before. Below $400, there is no self-employment tax and no Schedule SE. That one sentence settles most arguments about small gigs, but the misunderstandings live in the three words people gloss over: net, combined, and self-employment. Each one has bitten somebody I would describe as otherwise careful with money.
Net, not gross: the part that saves most people
The $400 test measures net earnings: what is left after you subtract ordinary and necessary business expenses from what clients paid you. Take a designer who bills $3,000 in a slow year and spends $2,700 on software subscriptions, a laptop repair, and mileage. Her net is $300. She owes no self-employment tax. The 1099s in her file say $3,000, which is why this surprises people: the form reports gross, and gross is not what the threshold measures.
Now the version that goes the other way. A driver nets $1,200 from ride-share work and $900 from deliveries, with $1,600 of total expenses across both. Combined net: $500. That clears $400, so self-employment tax applies to the $500. The math from there: $500 times 92.35% is $461.75 of taxable self-employment earnings, times 15.3% is $70.65 of self-employment tax, and half of that, $35.33, is deductible against income tax. Nobody is getting rich or ruined at these amounts, but the principle scales: it is always the profit after expenses that counts, never the gross.
Combined across every gig, and the 1099 myth
The IRS adds up all your self-employment activities. Three clients, $150 of net profit each: $450 total, and you are in. There is no per-client threshold, no per-platform threshold, and no minimum gig size. People who drive for two apps or freelance for a handful of clients miss this constantly, because each stream feels too small to matter. Added together, they matter.
And the 1099 confusion deserves its own paragraph, because it cuts both directions. Getting a 1099-NEC does not mean you owe the tax; the form shows gross payments, and only your net decides. Not getting one does not mean you are exempt either; for 2026, payers only have to issue 1099-NEC forms for payments of $2,000 or more, up from the old $600 line. A $1,500 client can pay you, send nothing to the IRS, and you still owe self-employment tax if your total net clears $400. The IRS expects you to report all of it either way. One more myth to retire: a W-2 salary does not shield side income. The $400 test runs on self-employment earnings alone, so the teacher tutoring on weekends owes the tax on her $500 of tutoring profit regardless of what her school district pays her.
What the $400 rule does not switch off
Here is the sentence people least want to hear: income below $400 is still income. The $400 line only turns off self-employment tax. It does not turn off income tax. If your total income from every source is high enough that you have to file, that $300 of gig profit is part of your taxable income. The practical upshot is narrow but real: under $400 of net self-employment income, you skip Schedule SE and the 15.3%, but you still report the money.
One question this federal rule leaves hanging, and I will leave it hanging too: your state may have its own filing threshold for business income, and a couple of states treat tiny amounts of self-employment income differently than the feds do. The $400 number is federal only. Your state's rule is the loose thread worth pulling before you assume a small gig is invisible everywhere.
Frequently asked questions
Is the $400 self-employment tax threshold based on gross or net income?
Net. The $400 test measures net earnings: gross self-employment income minus ordinary and necessary business expenses. Earning $3,000 with $2,700 of legitimate expenses leaves $300 of net earnings, which is below the threshold and triggers no self-employment tax.
Does the $400 rule apply per client or across all my gigs?
Across all of them. The IRS combines net earnings from every self-employment activity for the year. Three small clients netting $150 each puts you at $450, which is over the threshold even though no single gig crossed it.
If I get a 1099-NEC for $600, do I automatically owe self-employment tax?
No. A 1099-NEC reports gross payments, not profit. If business expenses bring your net below $400, you owe no self-employment tax. The form is a reporting document, not a tax bill.
Do I still report freelance income under $400?
Yes. Income below $400 is still taxable income for income tax purposes. You report it, and if your total income from all sources requires filing a return, that small gig is part of it. The $400 rule only switches off the self-employment tax, not income tax.
Does having a W-2 job change the $400 rule?
No. Self-employment tax is measured on your self-employment net earnings separately from wages. A teacher who nets $500 tutoring on weekends owes self-employment tax on that $500 even if her day job pays six figures.
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