Every year, California business owners form a company, pick a name, and completely ignore the question that determines how much of their income they actually keep. If you’ve been asking whether is brandville s corp or c corporation applies to businesses like yours, you’re asking the right question. The answer has nothing to do with the name on the door and everything to do with the tax election you make with the IRS. Get it wrong, and you could be handing the government an extra $20,000 to $40,000 per year with zero benefit to show for it.

Here’s what most California business owners don’t realize: the word “Corporation” in a company name tells you almost nothing about how it’s taxed. A business called Brandville Corp, Brandville Inc., or Brandville LLC could be taxed as a C Corp, an S Corp, or a disregarded entity. The tax treatment depends entirely on what elections were made with the IRS and the California Franchise Tax Board. This guide breaks down exactly how those distinctions work, what the difference costs you in real dollars, and how to make sure your California entity is structured to legally keep more of what you earn.

Quick Answer

Whether a company like Brandville is an S Corp or C Corporation depends on the IRS tax election on file, not the company name. By default, any corporation files as a C Corp and faces double taxation. To become an S Corp, the owners must file IRS Form 2553. In California, they must also file FTB Form 3560. Without those filings, a corporation is a C Corp, period.

Why the Corporation Name Tells You Nothing About Tax Treatment

This is the single most common misconception among new and mid-stage business owners in California. When you see “Inc.” or “Corp” after a business name, your brain defaults to a specific tax image. But legally, that suffix only tells you the company was incorporated. It says nothing about how the IRS taxes it.

There are two fundamentally different federal tax treatments for corporations in the United States:

• C Corporation (C Corp): The default status for any corporation. The company pays federal income tax at the flat 21% rate on its profits. Then, when those profits are distributed to shareholders as dividends, the shareholders pay personal income tax again. This is called double taxation.
• S Corporation (S Corp): A tax election available to qualifying corporations. The company itself pays no federal income tax. Instead, all profits and losses flow through to the shareholders’ personal tax returns. Shareholders only pay tax once, at their individual rate.

A company called “Brandville Inc.” or “Brandville Corp” is a C Corp by default the moment it’s incorporated. It stays a C Corp unless the owners take a deliberate, properly filed action to change that treatment. That action is IRS Form 2553.

Many business owners in California spend years overpaying taxes simply because no one told them this election existed or how quickly the deadline passes after incorporation.

The Real Tax Cost: C Corp vs. S Corp on $200,000 in California

Let’s put real numbers on this so the stakes are clear. Assume a California business owner runs a profitable company with $200,000 in net profit annually. Here’s what the two structures cost in actual taxes.

C Corp Tax Path

• Federal corporate income tax at 21%: $42,000
• Remaining after-tax profit: $158,000
• California franchise tax at 8.84% on same $200,000: $17,680
• If distributed as dividends, federal qualified dividend tax at 20%: $31,600
• California personal income tax on dividends (13.3% top rate): $21,014
• Total combined tax burden: ~$112,294
• Effective rate: ~56.1%

S Corp Tax Path

• No corporate-level federal income tax: $0
• California franchise tax at 1.5% on net income: $3,000
• Reasonable salary of $80,000 to owner (payroll taxes): ~$12,240
• Federal income tax on $200,000 total income at ~24% effective rate: $33,540
• California income tax at ~9.3% effective rate: $18,600
• Total combined tax burden: ~$67,380
• Effective rate: ~33.7%

The difference: $44,914 in annual savings by operating as an S Corp instead of a C Corp. On a $200,000 profit. That’s not a rounding error. That’s a second income stream you’re either keeping or handing to Sacramento and Washington.

Want to see how your specific profit numbers compare? Run your figures through this small business tax calculator to estimate your combined federal and state tax bill under different entity structures.

How to Determine (or Change) Your Corporation’s Tax Status

If you own a California corporation and you’re not certain whether it’s taxed as a C Corp or an S Corp, here’s a simple diagnostic checklist.

Step 1: Check for IRS Form 2553 on File

IRS Form 2553 is the election to be treated as an S Corporation for federal tax purposes. If this was never filed, your corporation is a C Corp. You should have received a CP261 notice from the IRS confirming acceptance if the election was made. If you can’t find that notice, contact the IRS directly or check with your accountant.

Step 2: Check for California FTB Form 3560

California does not automatically recognize a federal S Corp election. You must separately file Form 3560 with the California Franchise Tax Board to obtain S Corp status in California. This is the step that trips up most business owners who move to California from other states or who used an online incorporation service that didn’t cover state-level elections.

Step 3: Verify Your Business Tax Return Type

• If your corporation files IRS Form 1120, it is a C Corp.
• If your corporation files IRS Form 1120-S, it is an S Corp.
• Pull a prior year return from your records if you’re unsure.

Step 4: Check the California Franchise Tax Rate on Your FTB Notice

California C Corps are taxed at 8.84% of net income by the FTB. California S Corps are taxed at 1.5% of net income. If your FTB Notice of Tax Due shows 8.84%, you are a C Corp. If it shows 1.5%, your S Corp election is confirmed on the state level.

If you need to make the S Corp election, our entity formation services can walk you through the exact filing process for both IRS Form 2553 and FTB Form 3560, including late election relief if you’ve already missed the standard deadline.

For a comprehensive deep-dive into every aspect of S Corp strategy in California, see our complete guide to S Corp tax strategy in California.

The S Corp Reasonable Salary Rule: The Most Misunderstood Requirement

When a business owner converts to S Corp status, they cannot simply take all of their profit as distributions to avoid payroll taxes. The IRS requires that S Corp owner-employees pay themselves a “reasonable salary” for the work they perform in the business. This salary is subject to FICA payroll taxes (15.3% up to the Social Security wage base of $176,100 for 2025, and 2.9% Medicare tax above that).

The key: distributions taken above and beyond the reasonable salary are not subject to self-employment tax or FICA. That’s where the savings live.

How the Math Works on a $200,000 S Corp Profit

• Reasonable salary: $80,000
• FICA tax on salary (combined employer + employee): ~$12,240
• Distribution taken tax-free of payroll tax: $120,000
• Payroll tax savings on the $120,000 distribution vs. sole proprietor paying SE tax: $16,956

This is why the S Corp election is most valuable when business profit exceeds $60,000 to $80,000 annually. Below that threshold, the cost of running payroll often offsets the savings. Above $100,000, the case for S Corp status becomes almost inarguable.

What Counts as a Reasonable Salary?

The IRS looks at what you would pay someone else to do your job. Factors include industry norms, your qualifications, the size of the business, and the time you devote to operations. A good working rule: pay yourself between 40% and 60% of the company’s net profit as salary, with the remainder taken as distributions. Always document your salary rationale in writing.

Red Flag Alert: The IRS specifically targets S Corps paying zero or nominal salaries to owner-employees. This is one of the highest-audit-risk items for S Corps. According to IRS guidance under Revenue Ruling 74-44, a complete failure to pay reasonable compensation can result in the IRS reclassifying distributions as wages, triggering back payroll taxes plus penalties and interest.

California-Specific Traps That Catch Out-of-State Owners

California imposes a completely separate S Corp confirmation process. Even if your federal S Corp election is perfectly on file with the IRS, California will tax your corporation at the C Corp rate of 8.84% until FTB Form 3560 is accepted. This is a $7,680 annual difference on $200,000 in profit alone.

The FTB Form 3560 Deadline Problem

To be treated as an S Corp for a given California tax year, Form 3560 must be filed within two months and fifteen days of the start of the tax year. For a calendar-year corporation, that means March 15th. Miss that date, and California taxes you as a C Corp for the entire year regardless of your federal S Corp status.

The $800 Minimum Franchise Tax

Every California corporation, LLC, or S Corp owes a minimum franchise tax of $800 per year, due even if the company had zero income or operated at a loss. This is separate from and in addition to the 1.5% S Corp tax or the 8.84% C Corp tax. New entities get a first-year exemption from this $800 minimum under current California law, but the clock starts immediately in year two.

The AB 150 PTE Election

California S Corps can elect into the AB 150 Pass-Through Entity (PTE) elective tax, which allows the entity to pay California income tax at the entity level. The benefit: the state tax paid is deductible as a business expense on the federal return, effectively bypassing the $40,000 federal SALT deduction cap established under the OBBBA. For California S Corp owners earning $200,000 or more, this election can save an additional $3,000 to $8,000 annually in federal taxes. The election must be made annually by June 15th.

KDA Case Study: Sacramento Consultant Converts Corporation to S Corp Status

A Sacramento-based management consultant came to KDA in late 2024 after incorporating a business three years earlier using an online service. The incorporation was handled correctly, but the online platform never mentioned the S Corp election. For three years, the business had been filing IRS Form 1120 as a C Corp, paying the 21% corporate rate and then paying personal income tax again on distributions.

With annual net profit of $185,000, the consultant was absorbing a combined effective tax rate of approximately 51%, paying roughly $94,350 per year in combined federal and California taxes. KDA’s analysis showed that a properly structured S Corp election with a $75,000 reasonable salary would bring the effective combined rate down to approximately 33%, reducing the annual tax burden to roughly $61,050.

KDA filed IRS Form 2553 with a request for late election relief under Rev. Proc. 2013-30, which allows retroactive S Corp elections in cases of inadvertent failure. The IRS accepted the relief request. KDA also filed California FTB Form 3560 with a signed consent statement from all shareholders. Both elections were accepted within 60 days.

In the first full tax year post-conversion, the consultant saved $33,300 in combined federal and California taxes against a total fee of $4,200 for KDA’s services, representing a 7.9x first-year return on investment. The consultant also enrolled in the AB 150 PTE election, adding another $4,100 in federal tax savings by deducting California’s entity-level tax above the SALT cap.

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.

Common Mistakes That Keep Business Owners in C Corp Status

The following mistakes keep California business owners trapped in the more expensive C Corp structure without realizing it:

Mistake 1: Relying on the Incorporation Service to Handle Elections

Online incorporation services file your Articles of Incorporation. That’s it. None of them automatically file Form 2553 with the IRS or Form 3560 with the California FTB. You must initiate those filings separately, and most business owners never find out until a tax professional reviews their entity structure years later.

Mistake 2: Missing the Election Deadline and Assuming It’s Too Late

The standard deadline for electing S Corp status is March 15th of the year you want the election to take effect (for calendar-year corporations), or within 75 days of the corporation’s formation date. Many business owners miss this deadline and assume they’re stuck as a C Corp. They’re not. Late election relief is available under Rev. Proc. 2013-30 and is routinely approved by the IRS when the failure was inadvertent and all shareholders consent.

Mistake 3: Making the Federal Election Without Making the California Election

This creates a split situation: the IRS treats the corporation as an S Corp (income passes through tax-free at the federal level), while California continues taxing it at the 8.84% C Corp rate. Business owners in this situation file a 1120-S federally but still owe California’s corporate-level franchise tax on profits. The fix is a retroactive FTB Form 3560 filing with a showing of reasonable cause.

Mistake 4: Ignoring the Reasonable Salary After Conversion

Some business owners elect S Corp status and then stop paying themselves any salary, taking only distributions. This is the red flag the IRS watches for. Under IRS guidance on S Corp officer compensation, owner-employees must receive reasonable compensation. Failing to do so exposes the corporation to audit, payroll tax assessments, and accuracy-related penalties.

Should You Stay as a C Corp? The Situations Where It Makes Sense

S Corp status is not universally optimal. There are legitimate scenarios where remaining a C Corp serves business owners better:

Scenario 1: You’re Raising Venture Capital

Institutional investors and venture capital funds almost universally require C Corp structure. S Corps have restrictions on the number and type of shareholders (100-shareholder limit, no foreign shareholders, no corporate shareholders). If your growth plan involves a funding round, a C Corp is typically required.

Scenario 2: QSBS Exclusion Under IRC Section 1202

Qualified Small Business Stock (QSBS) gains exclusions apply only to C Corp stock. Under IRC Section 1202, gains from the sale of QSBS held for more than five years can be excluded from federal income tax up to $10 million (or 10x the original investment, whichever is greater). For founders planning an exit, this exclusion can be worth millions. S Corps are ineligible.

Scenario 3: Retained Earnings for Reinvestment

If your business retains most of its profit for growth rather than distributing it to owners, the C Corp’s flat 21% federal rate can be lower than the combined pass-through rate for high-income S Corp shareholders. This calculus changes significantly when California taxes are factored in, but for federally-focused planning, the math can favor retention inside a C Corp.

What Does the OBBBA Change for California Corporations in 2026?

The One Big Beautiful Bill Act (OBBBA), enacted in 2025, made the 20% Qualified Business Income (QBI) deduction under IRC Section 199A permanent. This deduction allows S Corp owners and other pass-through business owners to deduct 20% of qualified business income from their taxable income on their personal return.

On $120,000 in S Corp distributions (after reasonable salary), a 20% QBI deduction eliminates $24,000 from taxable income. At a 24% federal bracket, that’s a $5,760 annual federal tax reduction that C Corp shareholders cannot access. The permanency of this deduction under the OBBBA makes the S Corp structure even more attractive in 2026 and beyond.

The OBBBA also raised the SALT deduction cap from $10,000 to $40,000 (phasing out above $500,000 adjusted gross income), which directly benefits California S Corp owners who pair this with the AB 150 PTE election.

The 2026 Action Plan for California Corporation Owners

If you own a California corporation and haven’t confirmed your tax election status in the last 12 months, here’s what to do before March 15, 2026:

1. Pull your most recent federal tax return. Is it Form 1120 (C Corp) or Form 1120-S (S Corp)? If it’s 1120 and you’re profitable, you may be overpaying significantly.
2. Request your IRS transcript. Ask for a business account transcript that will show whether a Form 2553 election is on file. You can request this at IRS.gov or through your accountant.
3. Check your California FTB account. Log into MyFTB and confirm whether your entity is classified as an S Corp (1.5% rate) or C Corp (8.84% rate).
4. Calculate your potential savings. Use your last year’s net profit. If the S Corp structure saves you $10,000 or more annually, the cost of conversion and ongoing payroll administration is almost always justified.
5. File before March 15, 2026. If you want S Corp treatment to begin in the 2026 tax year, Form 2553 and FTB Form 3560 must be submitted before this deadline. If you miss it, late election relief is still possible but requires additional documentation.

Pro Tip: The March 15th S Corp election deadline applies to calendar-year corporations. If your fiscal year ends on a date other than December 31st, your deadline is the 15th day of the third month of your tax year.

Frequently Asked Questions

Can an LLC Elect S Corp Status in California?

Yes. An LLC can elect to be treated as an S Corp for both federal and California tax purposes. The LLC must first elect to be taxed as a corporation by filing IRS Form 8832, and then file IRS Form 2553 to elect S Corp treatment. California requires FTB Form 3560 in addition. This strategy is widely used by California LLC owners earning $80,000 or more in annual net profit.

How Many Shareholders Can an S Corp Have?

An S Corp is limited to 100 shareholders under federal law. All shareholders must be U.S. citizens or permanent residents. Corporations and most partnerships cannot be S Corp shareholders. Certain trusts, including Qualified Subchapter S Trusts (QSSTs) and Electing Small Business Trusts (ESBTs), are permitted as shareholders.

What Happens If I Accidentally Terminate My S Corp Election?

An S Corp election can be inadvertently terminated by exceeding the 100-shareholder limit, adding a non-qualifying shareholder, or having a passive income violation. The IRS allows relief under IRC Section 1362(f) for inadvertent terminations, provided the error is corrected promptly and the IRS determines the termination was unintentional. Act immediately and contact a tax professional if you believe your election has been compromised.

Does California Recognize Federal S Corp Status Automatically?

No. California specifically does not automatically adopt the federal S Corp election. A separate FTB Form 3560 must be filed and accepted. Without it, California will continue to tax the corporation at the 8.84% C Corp rate regardless of the federal election. This is the most expensive missed step for California business owners who elect S Corp status through an out-of-state service or on their own.

Key Takeaway: Whether your California corporation operates as an S Corp or C Corp depends entirely on elections filed with the IRS and the FTB, not on the company name. On $200,000 in annual profit, the difference is worth $30,000 to $45,000 per year. Verify your election status before March 15, 2026.

This information is current as of 3/13/2026. Tax laws change frequently. Verify updates with the IRS or FTB if reading this later.

Book Your Entity Strategy Session Today

If you’re not 100% certain whether your California corporation is properly elected as an S Corp or if you’ve been paying C Corp rates without realizing it, this is fixable. KDA’s strategy team has helped hundreds of California business owners convert their entity structure, file late elections with IRS approval, and recover years of overpaid taxes through amended returns. The average first-year savings exceeds $25,000. The cost of inaction is compounding every single month. Click here to book your entity strategy consultation now.