Do I owe taxes on my side hustle if I have a full-time job?
Yes — side hustle income is taxable from dollar one, even with a W-2 job. But how it works surprises people in both directions.
The bad surprise: your side income stacks on top of your salary. So it's taxed at your HIGHEST bracket. Add 15.3% self-employment tax once your net side profit passes $400. A $10,000 side hustle can easily mean $3,000+ in extra tax. And nothing was taken out for it.
The good surprise: your side hustle opens up deductions your W-2 never could. The part of your phone, home internet, and workspace used for the hustle. Miles driven for it. Equipment, software, supplies, courses. Your day job can't deduct anything. Your side business can.
The myth to ignore: "under $600 doesn't count." The 1099 line ($600, or $2,000 for 2026 pay) is just when someone must SEND you a form. Either way, you must report from the first dollar.
What to do: have more tax taken out of your W-2 pay to cover the side income. Or set aside 25-30% of side profit as it comes in. The people who get wrecked in April did neither.
With Toozi, you run all your side hustles from one text thread. Bookkeeping, taxes, and IRS filing are included. Free to start.
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