Short answer: On 1099 income you pay two taxes: self-employment tax (15.3% on 92.35% of net profit) and regular income tax at your bracket, plus state tax in most states. A practical rule is to set aside 25–35% of each payment, and pay quarterly estimates if you'll owe $1,000 or more. Deducting real business expenses is the biggest lever you control.
The two taxes on 1099 income
Self-employment tax is Social Security (12.4%) and Medicare (2.9%). An employee splits these with their employer; when you're self-employed you pay both halves. It applies to 92.35% of net profit, and the Social Security part stops at the 2026 wage base of $184,500 (W-2 wages count first).
Income tax then applies to your total taxable income. You get to deduct half of your self-employment tax and, for many filers, a 20% qualified business income (QBI) deduction.
Worked example: $40,000 side income
Single filer, no other job, $5,000 expenses, 2026 rules, QBI applied, no state tax.
| Step | Amount |
|---|---|
| Net profit | $35,000 |
| Self-employment tax (35,000 × 92.35% × 15.3%) | $4,945 |
| Half-SE deduction | −$2,473 |
| Standard deduction | −$16,100 |
| QBI deduction (20%) | −$3,285 |
| Taxable income | $13,142 |
| Income tax | $1,329 |
| Total federal | ≈ $6,274 (about 16% of gross) |
If you also have a W-2 job
Your W-2 wages fill the lower brackets first, so side income is taxed at your top rate — often 22% or 24% plus 15.3% SE tax. That's why side hustlers with a full-time job often need 30–40% set aside.
Instead of quarterly payments, you can raise withholding on your W-2 (Form W-4, extra amount per paycheck). Withholding counts as paid evenly through the year.
Quarterly estimated payments
Generally required if you expect to owe $1,000+ at filing. For 2026 income the due dates are April 15, June 15 and September 15, 2026, and January 15, 2027. Pay via IRS Direct Pay or your online account.
- Safe harbor: pay 100% of last year's total tax (110% if last year's AGI was over $150,000) to avoid the underpayment penalty.
- Or pay at least 90% of this year's tax.
Deductions worth tracking
Every $100 of legitimate expenses saves roughly $25–$40 in tax for a typical side hustler.
- Platform and payment fees (PayPal, Stripe, Etsy, app store cuts).
- Equipment and software used for the work.
- Business mileage at the IRS standard rate, or actual vehicle costs.
- Home office if a space is used regularly and exclusively for the business.
- Self-employed health insurance and retirement contributions (SEP-IRA, Solo 401(k)).
Forms you'll see
1099-NEC from clients who paid you $600+ (rising to $2,000 for payments made after 2025), 1099-K from payment apps and marketplaces above the reporting threshold. You report all business income on Schedule C and SE tax on Schedule SE, form or no form.
Official sources and limitations
Policy sources consulted November 7, 2026. Platform terms, regional eligibility, payment screens and account notices take precedence over this guide. Example amounts are hypothetical, not guaranteed payouts. This is educational guidance, not personalized financial or tax advice.
Run your own numbers
Use your own statement amounts and measured rates instead of treating a calculator default as an official payment quote.
More monetization guides