A plain-English reference to the IRS rules every self-employed worker, 1099 contractor, and freelancer needs to know for the 2026 tax year.
These rules shape how much you pay, when you pay, and what you can deduct.
Self-employed individuals pay a 15.3% tax on the first $168,600 of net earnings in 2026, covering Social Security (12.4%) and Medicare (2.9%). Amounts above this threshold are subject to a 2.9% Medicare-only tax.
In addition to SE tax, you still owe regular federal and state income tax on your taxable income. The good news: 50% of your SE tax is deductible from your income tax base.
Qualified business expenses (home office, mileage, supplies, equipment) reduce your net earnings, which in turn lowers BOTH your SE tax and your income tax. This is why tracking receipts matters.
If you expect to owe $1,000 or more in federal taxes for the year, you must pay estimated taxes quarterly. Missing deadlines triggers interest and penalties.
You must file Schedule SE whenever your net self-employment income reaches $400 or more, even if you also hold a W-2 position. There is no minimum exemption beyond this threshold.
Updated annually by the IRS. These are the figures to keep handy when planning.
| Item | 2026 Value | Notes |
|---|---|---|
| SE Tax Rate (combined) | 15.3% | 12.4% Social Security + 2.9% Medicare |
| Social Security Wage Base | $168,600 | Income above this is only taxed at 2.9% |
| SE Filing Threshold | $400 | Net earnings threshold for Schedule SE |
| Quarterly Estimated Tax Threshold | $1,000 | Expected annual federal tax liability |
| Standard Mileage Rate | 67¢ / mile | Optional, IRS-set annual rate |
| Home Office Simplified Rate | $5 / sq ft | Max 300 sq ft = $1,500 deduction |
Source: IRS Notice 2025-30, IRS Publication 334 (2026). Figures are for educational reference only and may be adjusted by the IRS.
Follow these six steps to stay compliant and keep more of what you earn.
Avoiding these is just as important as claiming every deduction.
Even small side-business income triggers a filing requirement once it crosses $400 net. Many first-time freelancers miss this.
Commingled accounts make it impossible to prove deductions. The IRS disallows deductions it cannot verify.
Without quarterly estimates, you'll face a large bill plus underpayment penalty (currently up to 8% per year on the unpaid amount).
If you hire people who work regularly for you, they may be employees by IRS standards. Misclassification carries heavy penalties (up to 200% of the unpaid tax).
The IRS requires records for all deductions over $75. Scanned or digital receipts are acceptable—store them for 3 years minimum.
Many states have their own self-employment tax, plus local business registration fees. Factor these in or you'll be surprised at filing time.
Use these free calculators to apply the rules directly to your numbers.
Instantly calculate your 2026 SE tax based on net earnings, with the 15.3% rate and Social Security wage base applied.
FreeWork out how much to pay each quarter to stay within the IRS safe-harbor rules and avoid underpayment penalties.
FreeAnswer a few questions about your business and discover deductions you may have overlooked.
FreeA deeper look at the 25–30% rule with real examples across income ranges.
Tax PlanningComplete deadline calendar and safe-harbor calculations to avoid penalties.
ComplianceFull 50-state comparison so you know the full picture.
ReferenceShort answers to the questions we hear most from freelancers and contractors.
The self-employment tax rate is 15.3% on net earnings up to $168,600 in 2026. This combines 12.4% for Social Security and 2.9% for Medicare. Earnings above $168,600 are subject only to the 2.9% Medicare portion.
Yes. Self-employed workers pay both self-employment tax (15.3%) and federal income tax on their net earnings. The good news is you can deduct 50% of your SE tax when calculating your taxable income for income tax purposes.
Gross income is all revenue from your business. Net income is what remains after you subtract allowable business deductions (home office, mileage, supplies, equipment, etc.). Self-employment tax is calculated on net earnings, not gross revenue.
You must file Schedule SE (Form 1040) if your net earnings from self-employment are $400 or more. This is true even if you have a regular W-2 job on the side.
Yes. Self-employed individuals can deduct 100% of health insurance premiums for themselves, their spouses, and dependents on Form 1040. This deduction reduces your AGI, which lowers both income tax and SE tax.
Failing to pay SE tax can result in IRS penalties, interest charges, and potential enforcement action. The IRS may file a Notice of Federal Tax Lien or levy your bank accounts if nonpayment persists.
Disclaimer: This page provides educational reference only. Tax rules change and individual circumstances vary. This is not professional tax advice. Consult a qualified tax professional before making decisions based on this information.