Your 1099 income is taxed as self-employment income, which means you owe both income tax and self-employment tax
The amount you owe depends on three things: how much you earned, your tax bracket, and whether you have other income. Unlike W-2 employees, you pay both the employer and employee portions of Social Security and Medicare taxes — 15.3% combined on net earnings, though you can deduct half of this on your tax return. On top of that, you owe federal income tax at your marginal rate (10%, 12%, 22%, 24%, 32%, 35%, or 37%, depending on your total income), plus state income tax if your state has one.
The actual number you owe is not knowable until you file your return, because it depends on your deductions, other income sources, and credits. But you can estimate it now and set money aside quarterly, which is what the IRS expects you to do through estimated tax payments.
Key Takeaways
- Self-employment tax (Social Security and Medicare) is 15.3% of your net 1099 earnings, and you owe it in addition to income tax.
- Your income tax rate depends on your total income for the year, including W-2 wages, other 1099s, and investment income, not just the 1099 amount.
- You can deduct business expenses from your 1099 income before calculating self-employment tax, which lowers what you owe.
- The IRS expects quarterly estimated tax payments if you will owe $1,000 or more when you file; missing these can result in penalties.
- You will not know your exact tax bill until you file your return and account for all deductions, credits, and other income.
How self-employment tax works on 1099 income
Self-employment tax covers Social Security and Medicare. The rate is 15.3% — 12.4% for Social Security (on earnings up to a cap that changes yearly) and 2.9% for Medicare (no cap). You calculate it on your net earnings, meaning 1099 income minus business expenses.
A W-2 employee pays half of this (7.65%) and their employer pays the other half. As a 1099 worker, you pay all of it. However, you can deduct half of your self-employment tax on your tax return, which reduces your taxable income slightly.
Example: You earned $50,000 on a 1099 with no business expenses. Your net earnings are $50,000. Self-employment tax is $50,000 × 0.9235 × 0.153 = $7,074. You can then deduct $3,537 (half) from your income before calculating income tax.
Income tax on 1099 earnings depends on your total income, not just the 1099
Your federal income tax rate is determined by your total taxable income for the year. If you have a W-2 job, a 1099 side business, rental income, and investment gains, all of it stacks together. The 1099 income pushes you into a higher bracket only if your total income crosses a bracket threshold.
For 2024, the federal tax brackets for single filers are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. If your total income (after deductions) is $47,150 to $100,525, you are in the 22% bracket. That does not mean you pay 22% on all your income — you pay 10% on the first portion, 12% on the next, and 22% on the rest.
The 1099 income that lands in the highest bracket you reach is what gets taxed at your marginal rate. If you are already in the 24% bracket from a W-2 job, an extra $10,000 in 1099 income is taxed at 24%, not at a lower rate.
Business expenses reduce what you owe
You report 1099 income on Schedule C (Profit or Loss from Business). On that form, you subtract business expenses from your gross 1099 income to get your net profit. Only the net profit is subject to self-employment tax and income tax.
Deductible expenses include supplies, equipment, home office (if you use part of your home exclusively for work), vehicle mileage, professional services, software, and insurance. Keep receipts and document what each expense was for. The more legitimate expenses you can document, the lower your net income and the less tax you owe.
Example: You earned $50,000 on a 1099 but spent $15,000 on equipment, supplies, and mileage. Your net profit is $35,000. Self-employment tax is calculated on $35,000, not $50,000. That saves you roughly $2,295 in self-employment tax alone.
Estimated tax payments keep you from owing a large bill at tax time
If you expect to owe $1,000 or more in federal income tax when you file, the IRS wants you to pay quarterly estimated taxes. These are due April 15, June 15, September 15, and January 15 of the following year. Missing them can result in underpayment penalties, even if you ultimately pay the full amount when you file.
To estimate what you owe each quarter, divide your expected annual tax by four. If you are unsure of your income for the year, use last year's tax return as a starting point and adjust upward if you expect to earn more. You can also use the IRS Form 1040-ES, which walks you through the calculation.
You pay estimated taxes by check, electronic transfer, or through the IRS Direct Pay system. Keep a record of what you paid and when, because you will need it when you file your return.
State income tax on 1099 income
Most states with an income tax treat 1099 income the same way the federal government does: you owe income tax on net profit plus self-employment tax. Some states also have their own self-employment tax or require quarterly estimated payments.
Nine states have no income tax: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire (which taxes only dividends and interest). If you live in one of these, you owe no state income tax on 1099 earnings, though you still owe federal tax and self-employment tax.
If you live in a state with income tax, check your state's department of revenue website for the tax rate and whether quarterly estimated payments are required. Some states have lower rates than others, and a few offer credits for self-employment tax paid.
How to estimate your total tax bill now
Start with your expected 1099 income for the year. Subtract business expenses to get net profit. Multiply net profit by 0.9235 (this accounts for the self-employment tax deduction) and then by 0.153 to estimate self-employment tax. Add half of that self-employment tax back to your net profit to get your estimated taxable income.
Look up your tax bracket based on your total income (including W-2 wages, other 1099s, and investment income). Multiply your taxable income by your marginal rate to estimate federal income tax. Add your state income tax if applicable. The sum is a rough estimate of what you will owe.
This is an estimate, not a may provide. Your actual bill will change if your income is higher or lower, if you have deductions you have not yet accounted for, or if you have tax credits. A tax professional can give you a more precise number and help you plan quarterly payments.
Frequently Asked Questions
Do I owe taxes on 1099 income even if I did not make much money?
You owe self-employment tax on any net 1099 income above $400, even if you owe no federal income tax. If your net profit is less than $400, you do not owe self-employment tax, but you still report the income on your return. If your total income is below the standard deduction for your filing status, you owe no income tax.
What happens if I do not pay estimated taxes?
The IRS will charge you an underpayment penalty when you file your return, even if you pay the full amount owed. The penalty is based on how much you underpaid and how late you were. You can avoid it by paying 90% of your current year tax or 100% of last year's tax (110% if last year's income was over $150,000) through quarterly payments or a lump sum before filing.
Can I deduct my home office on a 1099?
Yes, if you use part of your home exclusively and regularly for work. You can use the simplified method (multiply your office square footage by $5 per square foot, up to 300 square feet) or calculate actual expenses like rent, utilities, and insurance. Keep records of your office setup and how you use it.
If I have both a W-2 job and 1099 income, do I owe self-employment tax on the 1099?
Yes. Self-employment tax applies to 1099 income regardless of whether you have a W-2 job. However, if your W-2 wages already put you over the Social Security wage cap (which changes yearly), the 1099 income is not subject to the 12.4% Social Security portion, only the 2.9% Medicare portion.
Should I set aside money for taxes throughout the year?
Yes. A common approach is to set aside 25% to 30% of each 1099 payment you receive. This gives you a buffer for federal tax, self-employment tax, and state tax. If you end up owing less, you will get a refund when you file. If you owe more, you will have most of it already saved.