LLC vs. S-Corp: Which Entity Saves More in Taxes?

The Core Difference: How LLC vs. S-Corp Income Is Taxed

The fundamental difference between an LLC and an S-Corp isn't what you can do — it's how you get taxed on the money you make. Both can provide liability protection. Both allow for flexible ownership. But they're taxed very differently, and that difference can be worth tens of thousands of dollars per year.

How a Single-Member LLC Is Taxed

By default, a single-member LLC is a "disregarded entity" for federal tax purposes. All of your business profit flows directly to your personal tax return as self-employment income. That means you pay:

• Self-employment tax: 15.3% on the first ~$168,600 (2024 limit), then 2.9% above that
• Federal income tax: based on your marginal rate (10%–37%)
• State income tax: varies by state

So if your LLC nets $120,000, you're paying 15.3% self-employment tax on all $120,000 — roughly $18,360 — before any income tax. That's a heavy burden, and it's completely avoidable above a certain income threshold.

How an S-Corp Is Taxed

An S-Corp changes the game. As an S-Corp owner, you split your income into two buckets:

• Reasonable salary: Subject to payroll taxes (FICA), just like an employee
• Distributions: Not subject to payroll taxes — only income tax

Using the same $120,000 example: if your accountant determines a reasonable salary for your role is $60,000, you pay payroll taxes on $60,000 and take the remaining $60,000 as a distribution. You've just avoided payroll taxes on half your income — saving approximately $9,180 in a single year.

The S-Corp Tax Savings Calculator (Simple Version)

Here's a simple way to estimate your S-Corp savings:

1. Start with your net business income
2. Subtract a reasonable salary for your role (typically 40–60% of net income)
3. Multiply the remaining amount by 14.13% (the employer + employee payroll tax you avoid)
4. Subtract S-Corp administrative costs (~$1,500–$3,000/year for payroll, accounting)

Example: $150,000 net income — $60,000 salary = $90,000 in distributions. $90,000 × 14.13% = $12,717 savings. Minus $2,500 in added costs = $10,217 net annual savings.

When Does S-Corp Election Make Sense?

S-Corp election typically makes financial sense when your net business income exceeds $40,000–$50,000 annually. Below that threshold, the administrative costs (payroll processing, additional tax filings, S-Corp accounting) may exceed the savings.

The "sweet spot" breakdown:

• Under $40,000 net: LLC default is probably fine. S-Corp savings don't justify the added complexity.
• $40,000–$80,000 net: S-Corp election likely saves $2,000–$6,000 annually after costs.
• $80,000–$200,000 net: This is where S-Corp delivers the most impactful savings, often $6,000–$18,000 annually.
• Over $200,000 net: S-Corp is almost certainly worth it, though you may also benefit from a C-Corp evaluation or more complex structures.

What "Reasonable Salary" Actually Means

The IRS requires S-Corp owners who provide services to the business to pay themselves a "reasonable salary" — meaning compensation comparable to what you'd pay someone else to do your job. This is one of the most misunderstood and most audited areas of S-Corp taxation.

Factors the IRS considers when evaluating reasonable compensation include:

• Your role and responsibilities in the business
• Industry compensation benchmarks for similar positions
• Your company's gross receipts and net earnings
• Time and effort devoted to the business

Setting your salary too low is a red flag. A qualified tax advisor can help you determine the defensible range for your specific industry and role.

The Hidden Costs of S-Corp Status

S-Corp election isn't free. Here's what you should budget for each year:

• Payroll processing: $500–$1,500/year (software or service)
• S-Corp tax return (Form 1120-S): $500–$2,000 in added accounting fees
• State filing fees: Varies by state, typically $50–$800
• Quarterly estimated taxes: More complex to calculate

Total additional annual costs typically range from $1,500–$4,000. These should be weighed against your projected payroll tax savings to confirm the net benefit is positive.

Can an LLC Elect S-Corp Status?

Yes. An LLC can elect to be taxed as an S-Corp by filing IRS Form 2553. You don't have to dissolve your LLC and form a new entity — you simply change the tax treatment while keeping the same LLC structure. This is one of the cleanest and most common tax planning moves for growing small businesses.

Key requirements for S-Corp election include: you must be a U.S. citizen or permanent resident, you can have no more than 100 shareholders, all shareholders must be individuals (not corporations), and there can only be one class of stock.

Making the Decision

The right choice depends on your specific numbers. A free tax structure consultation can run the actual numbers for your business and give you a clear picture of whether S-Corp election is worth it — and exactly what your savings would look like.