Tax Strategy
The Ultimate Guide to Self-Employment Tax Deductions in 2025
From home office to health insurance, discover every above-the-line deduction available to freelancers and independent contractors this year.
Read Guide →Know exactly what you owe — SE tax, quarterly payments, and the deductions that bring your bill down. Built on official IRS figures for tax year 2025.
Total revenue before expenses (1099-NEC, 1099-K, cash, etc.)
Schedule C deductions: supplies, software, mileage, home office, etc.
100% deductible under Section 2042 of the Small Business Jobs Act
SEP-IRA (up to 25% of net SE income), Solo 401(k), SIMPLE IRA
Affects income tax brackets and additional Medicare tax threshold
W-2 wages already count toward the $176,100 SS wage base
Enter your income details and click Calculate to see your complete tax breakdown.
Subtract your business expenses from gross self-employment income. This is your Schedule C net profit — the foundation of every SE tax calculation.
The IRS taxes 92.35% of net SE income — not 100%. This accounts for the employer-equivalent half of SE tax that you effectively pay yourself.
Apply 15.3% to the taxable SE base up to the $176,100 Social Security wage base. Income above that is taxed at only 2.9% (Medicare only).
Deduct 50% of your SE tax, health insurance premiums, and retirement contributions from your gross income to reduce your AGI before income tax is calculated.
The 2025 SE tax rate is 15.3% — made up of 12.4% Social Security tax on the first $176,100 of earnings, plus 2.9% Medicare tax on all earnings. If your net SE income exceeds $200,000 (single) or $250,000 (married filing jointly), an additional 0.9% Medicare surtax applies.
The Social Security wage base increased from $168,600 in 2024 to $176,100 in 2025. Tax rates themselves (15.3%) remain unchanged. Income tax brackets were also adjusted for inflation.
No. You are only required to pay self-employment tax if your net earnings from self-employment are $400 or more (or $108.28 if you are a church employee).
Yes. You can deduct 50% of your self-employment tax from your gross income when calculating your AGI on Form 1040 — this is an above-the-line deduction you can take even without itemizing.
The 2025 quarterly due dates are: April 15 (Q1), June 16 (Q2), September 15 (Q3), and January 15, 2026 (Q4). You must pay estimated taxes if you expect to owe at least $1,000 after withholding.
Your W-2 wages count toward the $176,100 Social Security wage base. If your W-2 wages already exceed this cap, you owe no Social Security tax on your SE income — only the 2.9% Medicare portion. Our calculator handles this automatically via the "Other Income" field.