Self-employment taxes are one of the least understood parts of running an LLC—and one of the most common sources of surprise for new business owners. Many assume taxes only apply when money is withdrawn from the business or that forming an LLC automatically reduces tax liability. Neither is true.
Understanding how self-employment taxes work, why they apply to LLC income, and when they can be reduced helps business owners plan more confidently and avoid unpleasant surprises at tax time.
What Are Self-Employment Taxes?
Self-employment taxes are federal taxes that cover Social Security and Medicare contributions for individuals who work for themselves. When you’re an employee, these taxes are split between you and your employer. When you own an LLC, you are responsible for both portions.
For LLC owners, self-employment taxes apply because the IRS generally treats business profits as earned income when the owner is actively involved in the business.
This is separate from income tax. Self-employment taxes apply in addition to federal and state income taxes.
The 2026 Tax Breakdown
The self-employment tax rate is 15.3% in addition to federal and state income taxes, which consists of two parts:
- Social Security (12.4%): Applies to the first $184,500 of your earnings in 2026.+1
- Medicare (2.9%): Applies to all of your net earnings (there is no cap).+1
Why LLC Owners Pay Self-Employment Taxes
LLCs are pass-through entities by default. This means the business itself does not pay federal income tax. Instead, profits pass through to the owners, who report that income on their personal tax returns.
Because the income is earned through active participation, the IRS treats it as self-employment income.
Example:
A single-member LLC earns a profit during the year. Even if the owner leaves the money in the business account and does not transfer it personally, the IRS still treats the profit as taxable self-employment income.
The key takeaway is that taxes follow profit, not cash movement.
Single-Member vs. Multi-Member LLCs
Self-employment tax rules apply to both single-member and multi-member LLCs, but the mechanics differ slightly.
In a single-member LLC, the owner is generally subject to self-employment taxes on the full business profit.
In a multi-member LLC, each owner pays self-employment taxes on their allocated share of the profit, based on ownership percentages or the operating agreement.
Example:
Two owners split profits evenly. Each owner reports and pays self-employment taxes on their portion—even if the business retains the cash.
This is why ownership structure matters when evaluating tax obligations.
Common Misunderstandings About Self-Employment Taxes
Several misconceptions cause confusion for LLC owners:
- “I only pay taxes when I pay myself.” Not true. Taxes apply when income is earned, not when it’s withdrawn.
- “Forming an LLC reduces self-employment taxes.” An LLC by itself does not reduce self-employment taxes.
- “Having an EIN changes tax treatment.” An EIN is an identifier, not a tax election.
These misunderstandings often lead to under-planning rather than over-taxation.
How Self-Employment Taxes Influence S-Corp Decisions
Self-employment taxes are one of the main reasons LLC owners eventually explore S-Corp tax elections. Under S-Corp treatment, owners who actively work in the business are paid a salary (subject to payroll taxes), while remaining profits may be distributed differently for tax purposes.
This can reduce the portion of income subject to self-employment taxes—but it introduces payroll requirements and additional compliance.
This is why S-Corp elections are usually considered after a business reaches consistent profitability, not at formation.
Why Many Owners Review Self-Employment Taxes with a CPA
Self-employment taxes affect cash flow, quarterly estimates, and long-term planning. Because the impact depends on profit levels, business structure, and future growth, many LLC owners choose to review their situation with a CPA or tax professional.
A short conversation can help confirm whether default taxation still makes sense or whether alternative strategies should be evaluated. LLCMadeEasy focuses on helping business owners understand the rules clearly so those conversations are informed rather than reactive.
Final Thought
Self-employment taxes aren’t a penalty for running an LLC—they’re part of how the system treats earned business income. The confusion usually comes from assumptions, not complexity.
Once LLC owners understand why these taxes apply and how they fit into the bigger tax picture, planning becomes easier. Clarity here allows business owners to focus on growth instead of scrambling to catch up when tax deadlines arrive.
Where to Go Next
This article is part of the Taxes & IRS series. To continue building a solid foundation around LLC taxation, explore these related guides: