Self-Employment Tax Explained: How to Reduce It (2026)

What Is Self-Employment Tax?

Self-employment tax is the Social Security and Medicare tax that self-employed individuals pay on their net earnings. If you work for an employer, these taxes are split: your employer pays 7.65% and you pay 7.65%, for a combined 15.3%. When you are self-employed, you pay both halves: the full 15.3%.

This tax is separate from income tax. It is reported on Schedule SE of your Form 1040 and is due on all net self-employment earnings above $400.

The legal authority comes from the Self-Employment Contributions Act (SECA), which mirrors the Federal Insurance Contributions Act (FICA) that applies to employees. The rates and wage bases are identical. The IRS treats self-employed individuals as both employer and employee for tax purposes.

For many freelancers, consultants, and small business owners, self-employment tax is their largest single tax expense, often exceeding their income tax. A freelancer earning $150,000 pays approximately $21,200 in SE tax alone, before a single dollar of income tax.

How to Calculate Self-Employment Tax

The calculation has several steps. Here is how the IRS walks through it on Schedule SE.

Step 1: Determine Net Self-Employment Income

Start with your Schedule C net profit (or your share of partnership income from Schedule K-1). This is gross revenue minus all business deductions.

Step 2: Multiply by 92.35%

The IRS reduces your net income by 7.65% before calculating SE tax. This adjustment simulates the employer-side deduction that W-2 workers get. If your net income is $200,000, your SE tax base is $200,000 x 0.9235 = $184,700.

Step 3: Apply the Rates

• 12.4% Social Security on the first $184,500 (2026 wage base)
• 2.9% Medicare on the entire amount (no cap)
• 0.9% Additional Medicare Tax on earnings above $200,000 (single) or $250,000 (MFJ)

Example: $200,000 Net Self-Employment Income

That is $27,192 before you pay a single dollar of federal or state income tax. This is why self-employment tax reduction should be the first priority for any self-employed tax strategy.

The 15.3% Rate Breakdown

The 15.3% rate is actually two separate taxes bundled together.

Key point: The Social Security portion caps out at $184,500 in 2026. Once your combined wages and SE income hit that number, you stop paying the 12.4%. But the 2.9% Medicare tax has no cap. If you earn $500,000, you pay Medicare on every dollar.

For high earners who also have W-2 income, your W-2 wages count toward the Social Security cap first. If your W-2 already exceeds $184,500, your SE income is only subject to the 2.9% Medicare rate (plus the 0.9% Additional Medicare Tax if applicable).

The Social Security Wage Base

The Social Security wage base is adjusted annually for inflation. It has been rising steadily. Here is the recent history and 2026 number:

Source: Social Security Administration. The wage base is adjusted annually for inflation.

Why this matters for S-Corp planning: if you also have a W-2 job with wages above the Social Security wage base, your S-Corp salary only owes the 2.9% Medicare tax (not the 12.4% SS portion). This makes the S-Corp savings calculation different for dual-income earners.

The Deductible Half

The IRS lets you deduct 50% of your self-employment tax as an above-the-line deduction on Form 1040, Schedule 1, Line 15. This is called the "deductible half of self-employment tax."

This deduction reduces your Adjusted Gross Income (AGI), which in turn reduces your income tax. But it does not reduce the self-employment tax itself.

Example

If your SE tax is $27,192, you deduct $13,596 from your AGI. If you are in the 32% income tax bracket, this saves you approximately $4,351 in income tax. But you still pay the full $27,192 in SE tax.

This deduction is automatic. You do not need to itemize. It appears on Schedule 1 and flows to line 10 of your Form 1040.

S-Corp: The Number One SE Tax Reduction Method

The S-Corp election is the single most effective legal strategy for reducing self-employment tax. Here is how it works.

The Mechanism

When you operate as a sole proprietor (Schedule C), 100% of your net profit is subject to self-employment tax. When you elect S-Corp status (Form 2553), you split your income:

• Reasonable salary — Subject to FICA at 15.3% (split between employer and employee portions)
• Distributions — Subject to income tax only, NOT FICA

The savings come from the gap between your total profit and your reasonable salary. The wider the gap, the bigger the savings.

Example: $200,000 Net Income

That is nearly $15,000/year saved by changing how you are taxed. You are not changing what you do. You are not changing how much you earn. You are simply restructuring how the income flows for tax purposes.

The Reasonable Compensation Rule

The IRS requires that S-Corp owners pay themselves a "reasonable salary" for the services they perform. You cannot pay yourself $10,000 on $300,000 in profit. The IRS will reclassify distributions as wages, and you will owe back FICA plus penalties.

Reasonable compensation is determined by factors including: comparable wages for similar roles in your industry, hours worked, experience, and local market rates. Many strategists use Bureau of Labor Statistics data and industry surveys to support the salary amount.

For a complete walkthrough, see our S-Corp Election Guide.

Other SE Tax Reduction Strategies

1. Maximize Business Deductions

Every dollar of deduction reduces your SE tax base. Common overlooked deductions for self-employed individuals:

• Home office deduction: $5/sq ft (simplified) or actual expenses. Up to $1,500/year simplified or potentially much more with the regular method.
• Health insurance premiums: 100% deductible for the self-employed (above-the-line deduction, not on Schedule C, so it reduces income tax but not SE tax).
• Retirement plan contributions: SEP-IRA (25% of net SE income, up to $72,000), solo 401(k), or cash balance plan.
• Vehicle expenses: $0.70/mile (2026 standard rate) or actual expenses. Track every business mile.
• Professional development: Courses, conferences, books, certifications directly related to your business.

2. Hire Your Children

If you are a sole proprietor (not an S-Corp or partnership with non-parent partners), you can hire your children under age 18 without paying FICA on their wages. You get a business deduction, they earn income in the 0% or 10% bracket, and you can fund their Roth IRA with up to $7,500 of their earned income.

3. Retirement Plan Contributions

Retirement contributions reduce your Schedule C income, which reduces the SE tax base. A solo 401(k) allows up to $72,000 (2026) in combined employee and employer contributions. A SEP-IRA allows up to 25% of net SE income. A cash balance plan can add another $100,000-$350,000 if you are over 40.

4. Accountable Plan (S-Corp Owners)

If you have an S-Corp, an accountable plan lets the company reimburse you for business expenses tax-free. These reimbursements reduce the company's taxable income and are not treated as wages. This includes home office, vehicle, cell phone, internet, and travel expenses.

5. Health Reimbursement Arrangement (S-Corp)

S-Corp owners cannot participate in a traditional HRA, but can deduct health insurance premiums as a self-employed health insurance deduction if the policy is in the S-Corp's name. For employees (not owner-employees), a QSEHRA can reimburse up to $6,150 (individual) / $12,450 (family) in 2026.

6. Split Income with Spouse

If your spouse works in the business, paying them a salary shifts income to a potentially lower bracket and spreads Social Security credits between two people (which can increase combined lifetime benefits). Be sure the salary reflects actual work performed.