Most business owners obsess over getting more sales while quietly bleeding five figures in unnecessary taxes because they chose the wrong corporation type. The IRS will not send a letter saying you picked the wrong box. They just take the money. If you are growing and wondering **should I start a s corp or c corp**, getting this decision wrong can lock in years of avoidable tax and complexity.

Quick Answer

If your business is profitable, closely held, and you want to take money out regularly, an S corporation usually wins on total tax cost and flexibility for most small owners. A C corporation sometimes makes sense for startups chasing outside investors, companies that will reinvest most profits long term, or owners planning a sale where C corp structures are preferred. The right answer depends on profit level, how you pay yourself, and your exit plan, not buzzwords.

What Really Changes When You Pick S Corp Versus C Corp

Before you decide whether you should start a s corp or c corp, you need to understand how the IRS actually taxes each one. On paper they look similar; in practice the cash leaving your bank account can be very different.

A C corporation is a separate taxpayer. It pays its own federal income tax, currently at a flat 21 percent corporate rate under Internal Revenue Code section 11. When it pays you dividends, you pay tax again on your personal return. That two-step process is classic double taxation. See IRS Publication 542 for the official corporate overview.

An S corporation is a pass through. The company usually does not pay federal income tax itself. Instead, the profit passes to you and other shareholders and lands on your personal return, reported on Schedule E using the K 1 you receive. You still pay tax, but there is generally only one layer.

Here is the twist that matters for real money. If you run an operating business as an S corp and work in it, the IRS expects you to pay yourself a reasonable salary, which is subject to payroll taxes. Profit above that salary usually passes through without self employment tax. That is what creates a big gap in lifetime taxes versus a sole proprietorship or single member LLC.

Simple Example With Numbers

Assume your California consulting business clears $200,000 after expenses in 2025.

• Sole proprietor or single member LLC: All $200,000 is subject to both income tax and roughly 15.3 percent self employment tax up to the Social Security wage base, then 2.9 percent Medicare plus 0.9 percent additional Medicare at higher income. Roughly $20,000 plus in extra payroll taxes.
• S corporation: You pay yourself, say, a $100,000 W 2 salary. That salary is subject to payroll tax. The remaining $100,000 passes through as S corp profit without self employment tax. That can easily save $10,000 to $15,000 per year in federal payroll taxes alone, depending on your exact situation. See IRS Publication 535 for business expense and compensation guidance.

A C corporation has no such split. Its profits are corporate income first. Pulling cash out generally requires taxable dividends or extra salary, with payroll tax back in the picture.

Who Is A Good Fit For Each?

If you are a solo consultant, agency owner, medical professional, or similar service provider making at least $80,000 to $100,000 in consistent profit, an S corp is usually the stronger starting point. Many business owners in this range save five figures per year once the structure is set up correctly.

A C corporation might make sense if you expect to bring in venture capital, issue multiple classes of stock, or you plan to leave profits inside the company for a long time to fund growth rather than taking them out each year.

How Your Paycheck Works Under Each Structure

The question is not only should you start a s corp or c corp, but also how you plan to extract money from the business without handing back too much to the IRS or the California Franchise Tax Board.

Under an S corp, there are two main ways owners get paid:

• Reasonable salary: Paid through payroll as W 2 wages. Subject to Social Security and Medicare taxes. Needed to satisfy IRS rules when you provide significant services to the business. The IRS discusses reasonable compensation concepts in various rulings and in Publication 15.
• Distributions: Cash paid out beyond your W 2. Not subject to self employment tax in most cases, but still taxed as part of your pass through income.

With a C corp, your options look different:

• Salary and bonus: Deductible to the corporation, taxed to you as W 2 wages with payroll taxes.
• Dividends: Not deductible to the corporation. The C corp pays its 21 percent first, then you pay tax on dividends again at your qualified dividend rate, often 15 to 20 percent plus the 3.8 percent net investment income tax for higher earners.

Case In Point: High Earning Consultant

Consider Maya, a San Diego marketing consultant netting $250,000 after expenses.

• If she runs as a Schedule C sole proprietor, she could face $20,000 plus in self employment taxes and a high federal and California income tax bill.
• If she elects S corp status and pays herself a $120,000 salary with $130,000 in distributions, she might cut self employment style taxes by $12,000 to $15,000 per year while keeping total income tax similar. She also may qualify for the Section 199A qualified business income deduction, depending on her income and whether her work counts as a specified service trade or business.

The technical rules for 199A are detailed in Publication 535 and related regulations. Getting this wrong can easily turn a projected five figure savings into a nasty underpayment notice.

If you want help tuning this mix, KDA offers dedicated tax planning services that model different salary and distribution scenarios before you file Form 2553.

KDA Case Study: LLC Owner Restructures Into S Corp And Unlocks 5 Figure Savings

Anthony ran a specialty construction consulting LLC in Orange County. For years he filed as a disregarded entity on Schedule C, showing about $230,000 in annual net profit once he paid a small crew of subcontractors. His prior preparer focused on standard deductions and depreciation but never pushed the entity question. Anthony regularly complained about the roughly $30,000 in self employment tax piled on top of income tax and California franchise fees.

When Anthony came to KDA, we reviewed three years of returns and asked a basic question that no one had raised before: should he start a s corp or c corp, or convert his existing LLC to be taxed as an S corporation. He had no plans to bring in outside investors, no need for multiple stock classes, and he pulled nearly all profits out each year to support his family and build a real estate portfolio.

We converted his LLC to be taxed as an S corporation effective January 1 of the following year by filing Form 2553 on time. After studying industry data, we set a $110,000 reasonable salary documented with comparable compensation information. The remaining projected $120,000 in profit was taken as S corp distributions.

In the first S corp year, Anthony saved roughly $13,800 in combined Social Security and Medicare taxes compared to his prior structure. After our planning fee of about $3,500 that year covering entity analysis, payroll setup, and ongoing consultations, his first year cash on cash return was close to 4 to 1. Over a five year projection, the cumulative payroll tax savings exceeded $70,000 before even touching advanced strategies.

Ready to see how we can help you? Explore more success stories on our case studies page to discover proven strategies that have saved our clients thousands in taxes.

Red Flag Alert: The Traps That Come With Each Choice

Even if you are clear that you should start a s corp or c corp, it is easy to step on landmines that erase the theoretical savings. Each path has its own common mistakes.

Common S Corp Mistakes

• No or low salary: Owners taking almost everything as distributions while reporting tiny or no W 2 wages. The IRS has successfully reclassified those distributions as wages in court, hitting owners with back payroll taxes and penalties. Reasonable compensation is not optional.
• Late or missed Form 2553: Electing S status requires filing Form 2553, generally by two months and 15 days after the beginning of the tax year the election is to take effect. While there are late election relief procedures, relying on them is risky and stressful.
• Too many shareholders or wrong types: S corps are limited to 100 shareholders, generally must be U.S. individuals or certain trusts, and cannot have nonresident aliens as owners. These rules are laid out in Form 2553 instructions.

Common C Corp Mistakes

• Ignoring double taxation: Owners assume the flat 21 percent corporate rate is always better than their personal rate and forget about the second tax on dividends and possible accumulated earnings tax.
• Trapped cash: Leaving large profits inside the corporation without a clear reinvestment or distribution plan, building up potential exposure to the accumulated earnings tax once retained earnings look excessive relative to business needs.
• Poor exit planning: Certain sales of C corporation stock can qualify for favorable qualified small business stock treatment under Section 1202, but only if structured correctly well in advance. Most owners never hear about this until it is too late to qualify.

These traps are exactly why entity selection conversations should happen with a strategist rather than just on a bank account application.

How To Decide: A Simple Framework Owners Can Actually Use

Owners ask whether they should start a s corp or c corp expecting a one sentence answer. The reality is more like a decision tree. Here is a practical framework you can walk through in under ten minutes.

Step 1: Estimate Your Ongoing Profit

If your profit after expenses will be under $60,000 consistently, the complexity and cost of an S corp often outweigh the payroll tax savings. You can revisit when your numbers climb.

Between roughly $80,000 and $500,000 of profit where you work in the business, the S corporation usually becomes the workhorse entity. Above that range, both S and C structures can work, but the choice hinges on how you plan to exit and how much profit stays inside the company.

If you want to get a feel for your overall federal tax picture as profit grows, running scenarios through a solid small business tax calculator can clarify the stakes before you lock in a choice.

Step 2: Decide How Much Profit You Will Actually Leave In The Company

If you expect to distribute most profits to yourself and maybe one or two partners, S corp treatment is usually more tax efficient. The pass through model avoids double taxation and keeps your accounting simpler.

If you will be raising money, issuing stock options widely, or plan to retain most earnings to fund heavy R and D or capital expenditures, a C corp starts to make more sense despite the double tax. That structure matches how investors are used to operating and may unlock valuation advantages that overwhelm modest tax differences.

Step 3: Match To Your Exit Plan

Owners rarely tie their entity decision to their likely exit, but they should. If your goal is to build a steady cash flow machine you might one day sell to another private buyer, S corp status aligns well. It allows easier allocation of income and may reduce current taxes so you have more to reinvest in growth.

If your goal is to build a startup that could go public or be acquired by a large corporation, a C corporation is typically expected. In some cases, qualifying for the Section 1202 qualified small business stock exclusion can allow part of your eventual gain on sale to be federally tax free, but that requires strict planning from the start.

Will This Trigger An Audit?

Any time you change entities or shift large amounts of income from self employment tax to S corp distributions, owners worry the IRS will show up. The truth is, the IRS already knows your entity type and examines patterns that deviate from normal ranges.

The red flag is not choosing an S corp or C corp. The red flag is abusing the rules after you choose. For S corps, that means suspiciously low officer wages compared to industry norms. For C corps, that can mean unreasonable compensation schemes designed to strip out all profit as salary to avoid double tax.

The IRS publicly shares enforcement priorities in its Data Book and through various campaign announcements. Staying within the lanes described in official guidance like Publication 535 and documenting your compensation decisions dramatically lowers risk.

What About California Specific Issues?

California adds its own twist to the should I start a s corp or c corp decision. Both S and C corporations owe the $800 minimum franchise tax each year. On top of that:

• S corporations: Pay a 1.5 percent California tax on net income at the entity level, and shareholders also report their share of S corp income on their California personal returns. This combination often still beats full self employment tax for profitable owners.
• C corporations: Pay California corporate income tax, currently higher than the S corp rate, and dividends to California resident shareholders are taxed again personally.

This means the California penalty for picking the wrong entity stacks on top of federal consequences. For many service businesses here, the S election is often the least bad option, but a customized projection is worth the time before you commit.

This information is current as of 5/27/2026. Tax laws change frequently. Verify updates with the IRS or California Franchise Tax Board if you are reading this later.

Frequently Asked Questions About S Corp Versus C Corp Choices

What Is The Easiest Way To Switch From LLC To S Corp?

Many owners already have an LLC and do not want to rebuild everything. In many cases, you can keep your existing LLC legal shell and simply elect to have it taxed as an S corporation by filing Form 2553 and, if you are a multi member LLC, possibly Form 8832 first. The IRS treats the entity as an S corp for tax purposes going forward while your state records still show it as an LLC. Getting the timing right matters because late or improperly filed elections can leave you stuck for the year.

Can I Have An S Corp And Still Take Losses?

Yes, but your ability to deduct S corporation losses is capped by your basis in the stock and loans you have personally made to the company. Owners sometimes expect to write off large S corp losses personally, only to find basis limitations blocking the deduction until future years. Understanding these basis rules is key early on.

Is A C Corp Ever Better For A Small Service Business?

Occasionally, but rarely. For a closely held professional practice generating a few hundred thousand in profit, the combination of double taxation and California corporate rates usually makes C status inferior to S status. Exceptions show up when owners qualify for special incentives, are planning for a specific type of exit, or have reasons to keep substantial profits permanently inside the corporation.

Bottom Line

Asking whether you should start a s corp or c corp forces you to confront how you really plan to run, fund, and eventually exit your business. There is no universal right answer. But there are very clear wrong answers once you plug in your profit, your cash needs, and your time horizon.

The IRS is not hiding these rules. They are spread across forms, instructions, and publications. What most owners lack is the time and context to connect those dots into a structure that lets them keep more of what they are already earning.

Book Your Entity Strategy Session

If you are still debating whether to run your next growth phase through an S corporation or a C corporation, you should not be guessing on your own. A one hour working session can reveal whether you are leaving $10,000 or more on the table every single year in avoidable taxes.

If you want a personalized breakdown of how each entity type would hit your actual numbers, book a strategy call with our advisory team. We will review your current structure, model S versus C scenarios, and map out the exact filings and timelines to fix any misalignment. Click here to book your consultation now.