Self‑employment (SE) tax is a federal tax that covers Social Security and Medicare contributions for individuals who work for themselves.
Unlike traditional employees, self‑employed individuals pay both the employer and employee portions of these taxes.
🔢 2025 Self‑Employment Tax Rates
✅ Total SE Tax Rate: 15.3%
- 🧓 Social Security: 12.4%
- 🏥 Medicare: 2.9%
➕ Additional Medicare Tax
An extra 0.9% Medicare tax applies to earnings above the following thresholds:
| Filing Status | Additional Medicare Tax Begins At |
|---|---|
| Single / HOH / QSS | $200,000 |
| Married Filing Jointly (MFJ) | $250,000 |
| Married Filing Separately (MFS) | $125,000 |
📊 Income Thresholds (2025)
🧓 Social Security Wage Base
- Applies to the first $176,100 of net earnings
- ⏪ Before 2025: Wage base was $168,600
🏥 Medicare Tax
- Applies to all net earnings
- ❌ No income cap
✅ Who Must Pay Self‑Employment Tax
You must pay SE tax if you have:
- 💵 Net self‑employment income of $400 or more, or
- ⛪ Church employee income of $108.28 or more
👥 Includes:
- Freelancers
- Independent contractors
- Sole proprietors
- Partners
- Single‑member LLC owners
🧮 How to Calculate Self‑Employment Tax
1️⃣ Determine Net Earnings
- Gross income − business expenses
2️⃣ Apply IRS Adjustment
- Multiply net earnings by 92.35%
- This simulates the employer‑side deduction
3️⃣ Calculate the Tax
- 🧓 Social Security:
- 12.4% of adjusted earnings (up to the wage base)
- 🏥 Medicare:
- 2.9% of adjusted earnings (no cap)
- ➕ Additional Medicare:
- 0.9% on income above applicable thresholds
4️⃣ Deduct Half of SE Tax
- ✅ You may deduct 50% of your self‑employment tax
- 📉 This deduction reduces Adjusted Gross Income (AGI)
🆕 Recent Updates (OBBBA – 2025)
🧾 New Deductions for Self‑Employed Individuals
💸 No Tax on Tips
- Deduct up to $25,000 in qualified tips
- Applies for 2025–2028
- 📉 Phases out at:
- $150,000 MAGI (Single)
- $300,000 MAGI (MFJ)
⏱️ No Tax on Overtime
- Deduct up to $12,500 in qualified overtime pay
- Same MAGI phaseout thresholds as tips
📘 Examples
✅ Example 1: Freelancer
A freelancer earns $80,000 with $20,000 in business expenses.
- Net earnings:
- $80,000 − $20,000 = $60,000
- Adjusted earnings:
- $60,000 × 92.35% = $55,410
SE Tax Calculation:
- Social Security: $6,870
- Medicare: $1,607
- ✅ Total SE Tax: $8,477
✅ Example 2: Self‑Employed Hairstylist
A hairstylist earns $50,000 in tips.
- May deduct up to $25,000 under OBBBA
- ✅ Reduces taxable income
- ✅ Lowers self‑employment tax base