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How Self-Employment Tax Works: A Simple Guide for Business Owners

As your own boss, you're responsible for paying self-employment tax. Who needs to pay? How do you calculate? Smart ways to reduce what you owe?

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Key Highlights:

  • Who Needs To Pays Self-Employment Tax?

  • What Is the Self-Employment Tax Calculation?

  • Example: Self-Employment Tax Calculation

  • Which Business Tax Structures Does Self-Employment Tax Apply To?

  • Strategies to Minimize Self-Employment Tax

If you work for yourself and earn $400 or more in net income per year, you must pay self-employment tax. This applies to:

  • Freelancers who provide services to clients

  • Independent contractors who aren't considered employees

  • Sole proprietors who own unincorporated businesses

  • Gig workers (rideshare drivers, food delivery, etc.)

  • Partners in partnerships

  • Most LLC members who are active in the business

  • Self-employed farmers earning more than $400

  • Church employees earning more than $108.28

Traditional employees don't pay self-employment tax because their employers withhold Social Security (6.2%) and Medicare (1.45%) taxes from their paychecks and pay these amounts on their behalf. When you're self-employed, you're considered both the employer and employee for tax purposes, and essentially, pay more tax!

What Is the Self-Employment Tax Calculation?

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Self-employment tax is a 15.3% tax that covers your Social Security and Medicare contributions. Unlike employees who split this tax with their employers, self-employed individuals pay the full amount themselves. The calculation has a few simple steps:

  • Calculate your net earnings (business income minus expenses)

  • Multiply your net earnings by 92.35% (this adjustment accounts for the employer portion)

  • Apply the 15.3% tax rate to this amount (12.4% for Social Security, 2.9% for Medicare)

  • For 2024, the Social Security portion only applies to the first $168,600 of earnings

  • Also you can deduct half of your self-employment tax on your income tax return

Example: Self-Employment Tax Calculation

  • Marcus earns $75,000 from his graphic design business in 2024

  • His business expenses total $15,000

  • Net earnings: $75,000 - $15,000 = $60,000

  • Taxable amount: $60,000 × 92.35% = $55,410

  • Self-employment tax: $55,410 × 15.3% = $8,478

  • Eligible deduction for tax return: $8,478 × 50% = $4,239

Note: The $8,478 amount in self-employment tax does not include Federal tax and or State taxes.

Which Business Tax Structures Does Self-Employment Tax Apply To?

Not all business structures handle self-employment taxes the same way. Here's how different business types are affected:

Business Structure

Self-Employment Tax

How It Works

Sole Proprietorship

Yes

All net earnings are subject to self-employment tax

Partnership

Yes

Each partner pays SE tax on their share of partnership income

LLC (Single-Member)

Yes

Treated like a sole proprietorship for tax purposes

LLC (Multi-Member)

Yes

Treated like a partnership by default

S Corporation

Partial

Only salary is subject to employment taxes; distributions are not

C Corporation

No

Owners pay regular employment taxes on salary only

The way your business is structured can significantly impact how much self-employment tax you pay. Many small business owners choose to form an S Corporation as they grow to potentially reduce their self-employment tax burden.

Strategies to Minimize Self-Employment Tax

While you must pay your fair share of taxes, there are legal ways to reduce your self-employment tax burden:

1. Track All Business Expenses

Since self-employment tax is calculated on your net earnings (income minus expenses), every legitimate business expense you track and deduct lowers your taxable income. Common deductions include:

  • Office supplies and equipment

  • Business travel and meals

  • Professional services (accounting, legal)

  • Business insurance

  • Marketing and advertising

  • Software subscriptions

  • Professional development

  • Vehicle expenses for business use

2. Claim the Home Office Deduction

If you use part of your home regularly and exclusively for business, you may qualify for the home office deduction. This can include a portion of your rent/mortgage, utilities, internet, and home maintenance costs.

3. Deduct Health Insurance Premiums

Self-employed individuals can deduct 100% of health insurance premiums for themselves and their families as an adjustment to income, which reduces net earnings subject to self-employment tax.

4. Contribute to Retirement Accounts

Contributions to retirement accounts like a SEP IRA, SIMPLE IRA, or Solo 401(k) can significantly reduce your taxable income. These accounts have higher contribution limits for self-employed individuals than traditional IRAs.

5. Consider Changing Your Business Structure

As your business grows, forming an S Corporation might help reduce self-employment taxes. With an S Corp, you can pay yourself a reasonable salary (subject to employment taxes) and take additional income as distributions (not subject to self-employment tax).

For more information on tax savings when converting to an S-Corp click below:

Important: Always consult with a tax professional before changing your business structure. The decision involves many factors beyond just self-employment tax.

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