S-Corp vs LLC: Which Structure Saves You More on Taxes?

The S-Corp vs LLC question generates more confusion than almost any other tax topic. Most advice oversimplifies it. Here's the framework I use with clients to determine which structure actually saves money.

The Core Difference: Self-Employment Tax

As an LLC owner, you pay self-employment tax on your entire net profit. As an S-Corp owner, you only pay employment taxes on the salary you pay yourself. The remaining profit passes through as distributions—not subject to self-employment tax.

For business owners with meaningful net profits, this difference can translate to significant annual savings—though the exact amount depends on your specific income and salary structure.

When an S-Corp Makes Sense

The S-Corp structure becomes advantageous when:

1. Net profit reaches a meaningful threshold. Below a certain level, the additional compliance costs often exceed the tax savings.

2. Your income is relatively stable. S-Corps require reasonable salary, which means consistent payroll. Highly variable income makes this difficult.

3. You're comfortable with payroll administration. S-Corps require formal payroll, quarterly filings, and additional tax returns.

When an LLC Makes More Sense

Stay with an LLC when:

• You're in the early stages and profit is uncertain
• Your business has significant year-to-year income swings
• Simplicity matters more than marginal tax savings
• You have significant losses you need to deduct against other income

The "Reasonable Salary" Trap

The IRS requires S-Corp owners to pay themselves a "reasonable salary" before taking distributions. Pay yourself too little, and you risk reclassification of distributions as wages—plus penalties.

What counts as reasonable:

• Compensation for similar positions in similar companies
• Your experience and responsibilities
• Time devoted to the business
• Economic conditions in your area

A common mistake: Paying yourself a minimal salary when you're working full-time and the business generates substantial profits. The IRS will not view that as reasonable.

The Real Calculation

Don't just look at tax savings. Factor in:

• Additional accounting and payroll costs
• State-specific fees (some states charge S-Corp taxes)
• Compliance burden and time cost
• Loss of flexibility

Next Steps

The right answer depends on your specific numbers. Run the calculation with your actual revenue, expenses, and state tax situation before making the switch.

Entity structure decisions are a core part of tax engineering—the process of aligning your business and personal tax positions into a single optimized strategy. If you're approaching the threshold where an S-Corp conversion makes sense, it's worth modeling it against your full picture before making the move.