A second class of stock refers to any share of stock, debt instrument, or agreement in an S corporation that gives certain owners different economic rights than others. IRS rules strictly require S corporations to have only one class of stock, meaning every share must have identical rights to business profits and liquidation proceeds. If an S corporation accidentally creates a second class of stock, it will immediately lose its special tax status.

1. Meaning of “Second class of stock”

Unlike standard C corporations (which can issue preferred stock, common stock, and other creative shares to attract different types of investors), S corporations are bound by a strict “one class of stock” rule. This means the financial pie must be sliced exactly according to ownership percentages.

If one shareholder gets a special deal—such as a guaranteed payout before anyone else, a disproportionate share of the profits, or a greater share of the assets if the company closes—the IRS considers that special deal to be a “second class of stock.” It doesn’t matter if you didn’t physically print new stock certificates; the IRS looks at the actual economic reality of how the money is distributed.

2. Why “Second class of stock” Matters

This rule matters because violating it causes one of the most severe penalties in small business taxes: an automatic and immediate “Termination of S election.”

If the IRS determines you have created a second class of stock, your business is instantly reverted to a C corporation. This means your business will have to pay corporate income taxes, and the owners will face “double taxation” when taking money out of the business. Worse, you are generally locked out of re-electing S corporation status for five years.

3. How “Second class of stock” Works

To avoid creating a second class of stock, an S corporation must ensure that all outstanding shares confer identical rights to both distribution and liquidation proceeds. Every time the company distributes cash or property, it must be handed out strictly based on the percentage of stock each person owns.

The IRS does allow one major exception: voting rights. An S corporation can have voting and non-voting stock. As long as the non-voting shares get the exact same financial payouts per share as the voting shares, the IRS still considers it to be one class of stock.

4. Simple Example of “Second class of stock”

Let’s say you and your partner own an S corporation 50/50. The business makes $100,000 in profit.

Correct way (One class of stock): You take a $50,000 distribution, and your partner takes a $50,000 distribution.
Incorrect way (Second class of stock): You decide you worked harder this year, so you take a $70,000 distribution, and your partner takes a $30,000 distribution.

Because you distributed cash unevenly (disproportionate distributions), the IRS can claim you created a second class of stock by giving one shareholder better economic rights. Your S corporation status could be instantly terminated.

5. Who Is Affected by “Second class of stock”?

This rule specifically impacts S corporations and their shareholders, as well as LLCs that have elected to be taxed as S corporations.

It does not apply to:

C corporations (which can have as many classes of stock as they want).
Partnerships or standard LLCs (which are allowed to split profits however the owners agree).
Sole proprietors or freelancers.

6. Common Mistakes Related to “Second class of stock”

Disproportionate distributions: Paying owners different amounts of cash or property relative to their exact ownership percentage.
Using an LLC operating agreement: If an LLC elects S corp status but keeps a partnership-style operating agreement that allows for “special allocations” of profit, the IRS may view the document itself as creating a second class of stock.
Sketchy shareholder loans: If an owner loans money to the S corp but there is no written promissory note, no interest rate, and no repayment schedule, the IRS might reclassify the loan as equity (a second class of stock).
Paying personal expenses: If the business pays the personal expenses of one owner but not the other, the IRS treats it as a disproportionate cash distribution.

7. Forms Related to “Second class of stock”

There is no specific tax form where you report a second class of stock, because you are not allowed to have one. However, the one class of stock rule is agreed to when a business initially files Form 2553 (Election by a Small Business Corporation).

Distributions that must be kept strictly proportionate are reported annually to owners on Schedule K-1 (Form 1120-S).

8. “Second class of stock” vs. Related Terms

Second Class of Stock vs. Preferred Stock: Preferred stock is a legitimate second class of stock used in C corporations to give investors priority for dividends. S corporations are legally banned from issuing preferred stock.
Second Class of Stock vs. Non-Voting Stock: Non-voting stock is perfectly legal in an S corp. As long as a non-voting share gets the exact same dividend payout as a voting share, it does not violate the one class of stock rule.

9. Related Glossary Terms

10. FAQs About “Second class of stock”

Can my S corporation have voting and non-voting shares?
Yes. Differences in voting rights are explicitly allowed by the IRS. As long as the economic rights (distributions and liquidation payouts) are identical, having voting and non-voting shares does not create a second class of stock.

What happens if I accidentally take a disproportionate distribution?
If caught, it can terminate your S corporation status. However, if it was an honest mistake, you should immediately work with your accountant to correct it (usually by making a “true-up” distribution to the other shareholder or reclassifying the overpayment as a formal loan or wages).

Can an LLC taxed as an S corp have different classes of membership?
No. While standard LLC law allows for different membership classes and creative profit splits, the moment the LLC elects to be taxed as an S corporation, it must follow S corp tax rules. All members must receive distributions strictly according to their ownership percentage.

Can a loan to my business be considered a second class of stock?
Yes, if the loan is “disguised equity.” To avoid this, use the IRS “straight debt safe harbor” rules: ensure the loan has a written promissory note, a fixed maturity date, a reasonable interest rate, and isn’t dependent on the company’s profits.

11. Final Takeaway

The prohibition against a second class of stock is the IRS’s way of keeping S corporation taxes simple and straightforward. Every share must be treated exactly the same when it comes to handing out profits or closing down the business. Whether you are taking cash out of the business, drafting operating agreements, or loaning money to your company, strict adherence to this rule is essential to protect your pass-through tax status and avoid triggering a disastrous corporate tax bill.

12. Disclaimer

This article is for general educational purposes only and should not be considered tax, legal, or financial advice. Tax rules can change, and your situation may be different. Consider consulting a qualified tax professional before making tax decisions. Always verify current tax year rates, limitations, and regulations.

What Is “Second class of stock”?