Yes, independent contractors pay taxes, and they pay more kinds of tax than employees do. Every contractor owes federal income tax on net profit plus a 15.3% self-employment tax that funds Social Security and Medicare, and because no employer withholds anything from their pay, they send those amounts to the IRS themselves in quarterly installments. The filing trigger is low: net self-employment earnings of $400 or more in a year create both a tax bill and a return-filing requirement, even when total income would otherwise fall below the standard filing threshold.1Internal Revenue Service. Self-Employed Individuals Tax Center
The Self-Employment Tax
The tax that surprises most first-time freelancers is the self-employment tax. Employees split Social Security and Medicare contributions with their employer, each side paying 7.65%. As a contractor, you cover both halves, which brings the combined rate to 15.3%: 12.4% for Social Security and 2.9% for Medicare.2Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) That rate applies before income tax enters the picture.
The 12.4% Social Security piece only applies to the first $184,500 of net self-employment earnings in 2026.3Social Security Administration. Contribution and Benefit Base Above that ceiling, the Social Security portion stops. The 2.9% Medicare portion has no cap and applies to every dollar of net earnings. If your self-employment income exceeds $200,000 as a single filer or $250,000 on a joint return, an additional 0.9% Medicare tax kicks in on the amount above the threshold.4Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Federal Income Tax on Top
Your net profit is also subject to regular federal income tax at the same progressive rates that apply to wages. For 2026, those rates range from 10% on the lowest slice of taxable income up to 37% on income above $640,600 for single filers.5Internal Revenue Service. Federal Income Tax Rates and Brackets Each bracket applies only to income within its range, so earning into a new bracket doesn’t reprice your earlier dollars.
The tax code softens the double-hit of self-employment tax by letting you deduct half of it when calculating adjusted gross income. That mirrors traditional employment, where the employer’s share of payroll taxes is a deductible business expense the worker never sees on their return. The deduction doesn’t reduce the self-employment tax itself, but it lowers the income figure your income tax is calculated on.2Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) For a contractor netting $100,000, that deduction shaves roughly $7,650 off taxable income before a single business expense is counted.
Paying Quarterly, Not Once a Year
Because no one withholds tax from your payments, the IRS expects you to pay as you go. The federal system is pay-as-you-earn, and ignoring that is where most penalty trouble starts.6Internal Revenue Service. Estimated Taxes Four estimated-tax deadlines run through the year:
- April 15, covering income earned January through March
- June 15, covering April through May
- September 15, covering June through August
- January 15, 2027, covering September through December
When a deadline falls on a weekend or federal holiday, the due date shifts to the next business day.7Internal Revenue Service. Pay As You Go, So You Won’t Owe: A Guide to Withholding, Estimated Taxes and Ways to Avoid the Estimated Tax Penalty The worksheet in Form 1040-ES walks through the math for each quarter.
You can pay through the Electronic Federal Tax Payment System, through IRS Direct Pay from a bank account without creating a login, or by mailing a check with the voucher from Form 1040-ES.8Internal Revenue Service. EFTPS: The Electronic Federal Tax Payment System When you file the annual return the following April, every estimated payment you made gets credited against your total liability. Overpay, and you can refund the excess or roll it into next year’s estimates. Underpay, and you owe the difference plus possible penalties. Filing a six-month extension pushes the return deadline to October 15 but does not extend the time to pay: any tax owed is still due by April 15.9Internal Revenue Service. Get an Extension to File Your Tax Return
How to Avoid the Underpayment Penalty
Miss a quarterly payment or send too little, and the IRS charges an underpayment penalty that functions like interest on the shortfall. For the first quarter of 2026, that rate is 7% per year, compounded daily.10Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 The penalty accrues separately on each short installment, so falling behind early in the year costs more than falling behind late.
Three safe harbors let you avoid the penalty. You meet the requirement by satisfying any one of them:
- Your return shows a balance due under $1,000 after subtracting withholding and estimated payments.
- Your quarterly payments covered at least 90% of what you ultimately owe for the year.
- Your payments equaled or exceeded 100% of your total tax from the prior year. For higher earners with adjusted gross income above $150,000 on last year’s return, that threshold rises to 110%.11Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
For contractors whose income swings from quarter to quarter, the prior-year safe harbor is often the easiest target because the number is fixed and known before the year begins.
Deductions That Lower the Bill
Contractors report business income and expenses on Schedule C of Form 1040, and only the net profit flows through to both self-employment tax and income tax.12Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship) Every legitimate business expense you document reduces the amount subject to both taxes, which makes each deducted dollar more valuable than the same dollar of wage-earner deduction.
Ordinary Business Expenses
Ordinary and necessary costs of running your business belong on Schedule C: software subscriptions, professional liability insurance, office supplies, advertising, professional development, and the like. For vehicle expenses, you can track actual costs or use the IRS standard mileage rate, which is 72.5 cents per mile for 2026.13Internal Revenue Service. IRS Sets 2026 Business Standard Mileage Rate at 72.5 Cents Per Mile, Up 2.5 Cents Either method requires contemporaneous logs. Reconstructed mileage records at year-end are exactly what auditors reject.
If you use part of your home exclusively and regularly for business, you can claim a home office deduction using either actual expenses or the simplified method. Equipment purchases may qualify for immediate expensing under Section 179 instead of being depreciated over several years.
Health Insurance Premiums
Self-employed individuals can deduct premiums paid for medical, dental, and vision insurance covering themselves, their spouse, and dependents as an adjustment to income rather than an itemized deduction. This above-the-line treatment reduces your adjusted gross income whether or not you itemize.14Internal Revenue Service. About Form 7206, Self-Employed Health Insurance Deduction The plan must be established under your business, though policies in your personal name qualify for sole proprietors. One catch: this deduction doesn’t reduce your net earnings for self-employment tax purposes, so it only saves you income tax.
Retirement Contributions
Retirement plan contributions are one of the largest deductions available. A SEP-IRA allows contributions of up to 25% of net self-employment earnings, capped at $72,000 for 2026. A solo 401(k) lets you contribute up to $24,500 as an employee deferral for 2026, plus an employer profit-sharing contribution of up to 25% of net self-employment income.15Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Contractors age 50 and older can add a catch-up contribution of $8,000. These contributions reduce taxable income in the current year and grow tax-deferred until retirement.
Qualified Business Income Deduction
The Section 199A deduction lets eligible self-employed individuals deduct up to 20% of their qualified business income from a sole proprietorship, reducing income tax only (not self-employment tax).16Internal Revenue Service. Qualified Business Income Deduction This deduction was originally scheduled to expire after 2025 but was made permanent by the One Big Beautiful Bill Act, with some changes taking effect in 2026. The phase-in range where wage and capital limitations begin restricting the deduction widened to $75,000 above the income threshold for single filers and $150,000 for joint filers. The law also added a minimum deduction of $400 for contractors who actively participate in their business and have at least $1,000 of qualified business income.
For contractors in specified service fields like law, accounting, consulting, and health care, the deduction phases out entirely once taxable income exceeds the upper end of the phase-in range. Outside those service categories, higher-income contractors face limitations based on wages paid and business property owned, but the deduction doesn’t disappear completely.
The Forms You’ll See
Clients who pay you $2,000 or more during the year are required to send you a Form 1099-NEC reporting that income. The threshold increased from $600 to $2,000 for tax years beginning after 2025, so you’ll receive fewer 1099s in 2026 than in prior years.17Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns – 2026 Returns The higher threshold does not change your tax obligation: you owe tax on all self-employment income regardless of whether you receive a form. If you accept payments through platforms like PayPal or Venmo, those processors issue a Form 1099-K when your transactions exceed $20,000 and 200 transactions in a calendar year.
The return itself relies on three forms working together. Schedule C captures gross income minus business expenses to produce net profit. That profit transfers to Schedule SE, which calculates your self-employment tax.18Internal Revenue Service. About Schedule SE (Form 1040), Self-Employment Tax Both figures then feed into Form 1040, where income tax is calculated on the full picture. You’ll identify your business on these filings using either your Social Security number or an Employer Identification Number.
How Long to Keep Records
The IRS can audit returns going back three years from the filing date, so that’s the minimum period to retain receipts, bank statements, mileage logs, and expense records. The window extends to six years if you underreport income by more than 25% of gross receipts, and to seven years if you claim a deduction for bad debt or worthless securities. If you never file a return, there’s no statute of limitations at all: the IRS can come after that year forever.19Internal Revenue Service. How Long Should I Keep Records For records tied to equipment or other depreciable property, keep everything until at least three years after you sell or dispose of the asset.
State Taxes Are Separate
Federal taxes are only part of the picture. Most states impose their own income tax on self-employment earnings, with top marginal rates ranging from 2.5% to over 13% among the states that tax personal income. Eight states have no individual income tax at all. Many states that do tax income also require quarterly estimated payments, typically triggered when you expect to owe between $500 and $1,000 in state tax for the year. Rates, deadlines, and forms vary significantly by state, and missing a state estimated payment carries its own penalty separate from the federal one, so check your state revenue department before your first quarterly deadline.