LLC vs S-Corp vs Sole Proprietorship vs C-Corp: A Real Decision Framework (Not Just Definitions)

# LLC vs S-Corp vs Sole Proprietorship vs C-Corp: A Real Decision Framework

Every article about business entities starts the same way: "A sole proprietorship is the simplest business structure…" and then gives you four definitions you could've gotten from Wikipedia. That's not what you need. You need someone to tell you which one to pick based on your actual situation — how much money you're making, where you live, what your plans are — and when it makes sense to change.

That's what this is. Real tax math, real costs, real decision logic. I've helped hundreds of business owners at Holdings work through this exact question, and 90% of the time the answer is simpler than people think.

The 60-Second Decision Framework

Before we get into the details, here's the shortcut. Answer these three questions:

1. How much net profit does your business make (or will it make this year)?
2. Are you raising outside investment from VCs or angel investors?
3. Do you have (or plan to have) multiple owners?

Now use this logic:

• Under $50K profit, no investors, solo → Stay a sole proprietorship. The tax savings from other structures don't justify the costs yet.
• $50K–$150K profit, no investors → Form an LLC and elect S-Corp taxation. This is where the real savings kick in.
• Over $150K profit, no investors → LLC taxed as S-Corp, but talk to a CPA about your reasonable salary calculation. The stakes are higher.
• Raising VC money, any revenue level → You need a C-Corp (Delaware). Full stop. VCs won't invest in anything else.
• Multiple owners with different ownership % → LLC with a solid operating agreement, potentially taxed as S-Corp or partnership depending on the situation.

That's the framework. The rest of this article is the *why* behind each path — the tax math, the costs, the gotchas, and when to switch.

The Four Structures, Explained Without the Fluff

Sole Proprietorship: The Default

If you're freelancing, consulting, or selling anything without having filed paperwork with your state, you're already a sole proprietorship. It's not something you create — it's what you are by default.

What it actually means:

• You and the business are legally the same entity
• You report business income on Schedule C of your personal tax return
• You pay self-employment tax (15.3%) on all net profit
• You're personally liable for everything — business debts, lawsuits, all of it

When it works: You're testing an idea, side-hustling, or making under $50K/year in profit. The simplicity is genuinely worth something when you're starting out.

When it stops working: The moment your profit crosses roughly $50K, you're leaving thousands of dollars on the table in unnecessary self-employment tax. And you have zero liability protection.

LLC (Limited Liability Company): The Flexible Middle Ground

An LLC is a legal structure you file with your state. By itself, an LLC doesn't change your taxes at all — a single-member LLC is taxed identically to a sole proprietorship (Schedule C, self-employment tax on everything). What it gives you is liability protection and options.

What it actually means:

• Your personal assets (house, car, savings) are separated from business liabilities
• You can choose how you want to be taxed: as a sole prop (default), S-Corp, or even C-Corp
• Minimal formality — no board meetings, no corporate minutes, no stock issuance
• Operating agreement governs how the business runs (critical if you have partners)

The key insight most people miss: An LLC is a *legal* structure. S-Corp is a *tax* election. They're not the same category. You can be an LLC that's taxed as an S-Corp — and for most small business owners making $50K–$250K in profit, that's the optimal setup.

S-Corp: A Tax Election, Not a Business Type

This is where confusion runs rampant. An S-Corp is not a type of business you form. It's a tax election you make with the IRS (Form 2553). You can be either an LLC or a corporation and elect S-Corp taxation.

What S-Corp taxation actually does:

• Splits your business income into two buckets: salary (W-2 to yourself) and distributions (profit sharing)
• You pay self-employment tax (15.3%) only on the salary portion
• Distributions are subject to income tax but NOT self-employment tax
• You must pay yourself a "reasonable salary" — the IRS is very clear about this

The magic and the math: If your LLC makes $100K in profit and you're a sole prop, you pay 15.3% self-employment tax on the entire $100K = $15,300 in SE tax.

If you elect S-Corp taxation and pay yourself a reasonable salary of $55,000, you pay 15.3% only on the $55K = $8,415 in SE tax. The remaining $45K in distributions? Income tax only. You just saved $6,885.

That's real money. Every year.

C-Corp: The Investor-Ready Structure

A C-Corp is a fully separate legal entity. It has its own tax return (Form 1120), its own tax rate (flat 21% federal), and the ability to issue different classes of stock.

What it actually means:

• The corporation pays tax on its profits (21%)
• When profits are distributed to shareholders as dividends, they're taxed again (double taxation)
• Can issue preferred stock, common stock, stock options — the mechanics VCs need
• Most complex to maintain: board meetings, corporate minutes, annual filings

When you need one: If you're raising venture capital or plan to within the next 12–18 months. If you want to issue stock options to employees. If you're planning for an IPO someday. If none of those apply, a C-Corp is almost certainly the wrong choice for a small business.

Real Tax Math: $60K, $100K, and $200K Scenarios

Let's stop talking in generalities and run the numbers. All examples assume single filer, standard deduction, 2026 tax rates.

Scenario 1: $60,000 Net Profit

The verdict at $60K: It's borderline. The S-Corp election saves you about $2,358 in SE tax, but running payroll and filing a separate S-Corp return (Form 1120-S) costs $2,000–$3,500. You might break even, you might lose money. This is where a lot of people get S-Corp fever prematurely.

My take: At $60K, form the LLC for liability protection but skip the S-Corp election unless you can run payroll cheaply (some payroll services start at $40/month). The juice isn't quite worth the squeeze yet.

Scenario 2: $100,000 Net Profit

The verdict at $100K: This is the sweet spot. You're saving $5,700+ in SE tax, spending $2,500–$4,000 on compliance costs, and netting $1,700–$3,200 per year. Over five years, that's $8,500–$16,000 you keep. The S-Corp election pays for itself and then some.

Scenario 3: $200,000 Net Profit

*Note: The Social Security portion of SE tax caps at $168,600 (2026), so the calculation gets slightly more favorable for sole props above that threshold — but the savings from S-Corp are still massive.*

The verdict at $200K: If you're making $200K in profit and haven't elected S-Corp taxation, you're leaving over $10,000/year on the table. That's not a rounding error. That's a vacation, a hire, or a serious investment back into your business.

What About C-Corp at These Levels?

At $200K profit, a C-Corp pays 21% corporate tax = $42,000. If you then take a $80K salary (deductible to the corp), you'd pay $25,200 in corporate tax on the remaining $120K, plus personal income tax on your $80K salary. And if you take dividends, you're taxed again at 15–20%.

Unless you're reinvesting all profits into the business and never taking distributions, or you're raising outside capital, a C-Corp costs you more at these income levels.

Cost Comparison Table

*California charges an $800 minimum franchise tax for LLCs and corporations. Texas, Wyoming, and several other states charge $0. This matters.*

State-Specific Notes: Where You Form Matters

The Wyoming/Delaware Myth

You've probably heard: "Form your LLC in Wyoming for no state taxes!" or "Delaware is the best state for incorporation!" Here's the reality:

Wyoming and Nevada (no state income tax):

• If you *live* there: Great. Form in your home state.
• If you *don't* live there: You still owe taxes in your home state where you do business. Wyoming's zero tax doesn't help you. And now you're paying for a registered agent in Wyoming PLUS registering as a foreign LLC in your home state. You're paying double for nothing.

Delaware:

• Makes sense for C-Corps raising venture capital — Delaware's Court of Chancery is the gold standard for corporate law, and VCs expect it
• For small LLCs? Almost never worth it. You'll still need to register in your home state
• Exception: If you have no physical presence in any state (rare), Delaware can work

The rule: Form in the state where you live and operate. Period. The only exception is VC-backed C-Corps (Delaware) and truly location-independent businesses.

States That Make LLC Ownership Expensive

• California: $800/year minimum franchise tax, even if you made $0. If you're in CA and making under $30K, this changes the math on whether an LLC is worth it.
• New York: Publication requirement after formation — costs $300–$1,500 depending on the county. One-time cost but it's steep.
• Massachusetts: $500/year annual report fee for LLCs.
• Best value states: Wyoming ($60 formation, $60/year), New Mexico ($50 formation, no annual fee), Colorado ($50 formation, $10/year).

When to Change Your Entity Type

This is the section most articles skip, and it's the question I hear most often: "I started as a sole prop / LLC. When do I switch?"

Sole Prop → LLC

Switch when:

• Your net profit consistently exceeds $30K–$40K/year
• You have clients or customers (liability risk)
• You're signing contracts or leases
• You have any business assets worth protecting
• You just want to sleep better at night

How: File Articles of Organization with your state. Get an EIN from the IRS (free, takes 5 minutes online). Open a business bank account. Cost: $50–$500 depending on state.

LLC → LLC with S-Corp Election

Switch when:

• Net profit consistently exceeds $60K–$80K/year
• You're prepared to run payroll (pay yourself a W-2 salary)
• You're prepared to file Form 1120-S (or pay someone to)
• The tax savings exceed the compliance costs (run the math with our payroll calculator)

How: File Form 2553 with the IRS. Deadline: within 75 days of the tax year start, or by March 15 of the current tax year. If you miss the window, you can file a late election with reasonable cause.

Critical: The day you elect S-Corp, you MUST start paying yourself a reasonable salary via payroll. This means withholding income tax, Social Security, and Medicare. No skipping this. The IRS audits S-Corps that take $0 salary and $200K in distributions — and they win every time.

LLC → C-Corp

Switch when:

• You're actively fundraising from VCs or angel investors
• You want to issue stock options to employees
• You're planning an IPO or acquisition (long-term)
• Your business retains significant profits (reinvesting instead of distributing)

How: This is more complex. You'll typically form a new C-Corp (in Delaware, if raising VC) and transfer assets from the LLC. Work with an attorney — this isn't a DIY project.

S-Corp → C-Corp

Switch when:

• Same triggers as LLC → C-Corp above
• You've outgrown the S-Corp restrictions (100 shareholder limit, one class of stock, no foreign shareholders)

How: Revoke S-Corp election (IRS consent required from shareholders owning >50% of stock). Takes effect at the beginning of the next tax year unless you specify otherwise.

Going Backward: C-Corp → S-Corp

This happens more often than you'd think. Startups that incorporated as C-Corps for fundraising, didn't end up raising, and now want to avoid double taxation.

Possible but tricky: Built-in gains tax applies for 5 years after conversion. Any appreciated assets the C-Corp holds get taxed at the corporate rate if sold within that window. Talk to a CPA before making this move.

What About the QBI Deduction?

One more piece of the tax puzzle that changes the math: the Qualified Business Income (QBI) deduction under Section 199A. If you're a sole prop, LLC, or S-Corp (any pass-through entity), you may be able to deduct up to 20% of your qualified business income from your taxable income.

How it works: If your business generates $100K in profit, you might be able to deduct $20K from your taxable income — saving you roughly $4,400–$7,400 in income tax depending on your bracket.

The catch: The deduction phases out for certain service businesses (consulting, law, accounting, health, financial services) once your taxable income exceeds $191,950 (single) or $383,900 (married filing jointly) in 2026. If you're a plumber, manufacturer, or retailer, there's no phase-out.

How this affects entity choice:

• Sole props and LLCs get the QBI deduction on all net profit
• S-Corps get it on distributions only (not on W-2 salary) — so your reasonable salary doesn't qualify for QBI, which slightly reduces the deduction
• C-Corps don't qualify for QBI at all (they're not pass-through entities)

At $100K profit with a $55K S-Corp salary, your QBI deduction is based on $45K in distributions = up to $9,000 deduction. As a sole prop, your QBI is based on the full $100K = up to $20,000 deduction. The S-Corp still wins on total tax because the SE tax savings exceed the reduced QBI benefit, but it narrows the gap slightly.

Bottom line: Factor QBI into your calculations, but don't let it change the fundamental entity decision. The SE tax savings from S-Corp almost always outweigh the QBI reduction for businesses above $80K in profit.

Reasonable Salary: The S-Corp Landmine

If you elect S-Corp taxation, the single most important number in your tax life is your "reasonable salary." The IRS requires that S-Corp owner-employees pay themselves a salary that's comparable to what someone in a similar role, with similar experience, in a similar market would earn.

How to determine reasonable salary:

• Look at Bureau of Labor Statistics data for your occupation and metro area
• Check salary sites like Glassdoor, Payscale, or Salary.com
• Consider your hours, experience level, and the size of your business
• Document your methodology — if audited, you need to explain your number

Rules of thumb:

• Your salary should generally be at least 40-60% of your business's net profit
• For a one-person consulting firm making $100K, $50K–$65K is defensible
• For a one-person firm making $200K, $70K–$100K is typical
• Never pay yourself minimum wage or $0 — the IRS won't buy it

What the IRS looks at in an audit:

• Your training, education, and experience
• What comparable businesses pay for similar services
• How much time you spend on the business
• Your company's history of distributions vs. salary
• Whether salary + distributions = roughly what you'd earn as an employee elsewhere

The Watson v. Commissioner case (2012) is the landmark: an accountant paid himself $24,000/year while taking $203,000 in distributions. The court ruled his salary was unreasonably low and reclassified a chunk of distributions as wages. He owed back FICA plus penalties. Don't be that person.

The 5 Most Common Entity Mistakes

1. "My Friend Said I Should Be an S-Corp"

Your friend who drives for DoorDash and makes $35K isn't saving money with an S-Corp. They're paying $3,000+ in extra compliance costs to save maybe $1,500 in SE tax. Friends don't let friends elect S-Corp prematurely.

2. Setting Your S-Corp Salary Too Low

If your consulting firm generates $180K and you pay yourself $30,000, the IRS will reclassify your distributions as salary and hit you with back taxes, penalties, and interest. "Reasonable salary" means what someone in your role, in your industry, in your market would earn. For most service business owners, that's $50K–$90K.

3. Forming in Delaware (When You Shouldn't)

I covered this above, but it bears repeating: Unless you're raising VC money, forming in Delaware as a small business owner just means more paperwork and more fees. Form in your home state.

4. Not Having an Operating Agreement

Even single-member LLCs should have an operating agreement. It reinforces your liability protection, defines how the business operates, and some banks require it to open a business bank account. For multi-member LLCs, it's absolutely non-negotiable — it's your business prenup.

5. Waiting Too Long to Switch

If you've been a sole prop making $100K+ for three years, you've potentially left $15,000–$25,000 in tax savings on the table. The best time to restructure was when you crossed the threshold. The second best time is now.

The Decision Flowchart

Here's the complete framework in flowchart logic:

Step 1: Are you raising venture capital?

• YES → C-Corp in Delaware. Done.
• NO → Continue to Step 2.

Step 2: What's your annual net profit?

• Under $40K → Sole proprietorship is fine. Consider an LLC for liability protection if you have clients.
• $40K–$60K → LLC in your home state. Run the numbers on S-Corp but it's probably not worth it yet.
• $60K–$80K → LLC + potentially S-Corp. Run the exact math (use our worksheet below).
• Over $80K → LLC + S-Corp election. The savings are clear.

Step 3: Do you have multiple owners?

• YES → LLC with operating agreement. Tax treatment depends on the specifics (partnership, S-Corp, or C-Corp election).
• NO → Single-member LLC with appropriate tax election per Step 2.

Step 4: Do you have employees (besides yourself)?

• YES → You're already running payroll, so the incremental cost of S-Corp compliance is lower. This tilts toward S-Corp at lower profit levels.
• NO → Factor the full payroll setup cost into your S-Corp calculation.

Timing Your Entity Change: Key Deadlines

If you're making a switch, timing matters:

Pro tip: If you're forming an LLC in Q4 and plan to elect S-Corp, you have two options: (1) elect S-Corp immediately and start payroll now, or (2) wait until January 1 and file by March 15. Option 2 is cleaner for bookkeeping — you start the year fresh as an S-Corp rather than switching mid-year.

Get Your Entity Right, Then Get Your Banking Right

The entity structure is step one. Step two is making sure your finances are actually separated and organized. That means a dedicated business bank account (not your personal checking account with a DBA), proper bookkeeping, and clear financial records.

At Holdings, we built our business banking specifically for the business owners making these decisions — freelancers, small businesses, nonprofits, e-commerce brands. Free checking, AI-powered bookkeeping that categorizes your transactions automatically, profit and loss tracking built in, and payroll tools for when you're ready for that S-Corp election.

Because choosing the right entity is only useful if you can actually see what your business is doing financially.

Download: Business Entity Comparison Worksheet

We built a worksheet that walks you through the exact decision framework above with your real numbers. Plug in your estimated profit, your state, your growth plans, and it tells you which entity structure saves you the most money.

Download the Business Entity Comparison Worksheet

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*This article is for educational purposes and isn't tax or legal advice. Every business situation is different — consult with a CPA or attorney for advice specific to your circumstances. Holdings is a financial technology company, not a bank. Banking services provided by i3 Bank, Member FDIC. Deposits are FDIC insured up to $3,000,000 through i3 Bank's deposit network.*

— Jason