Before talking about stock basis, it helps to understand why S corporations exist in the first place.

As we know, traditional C corporations generally pay income tax at the corporate level. Then, if profits are distributed to shareholders, those shareholders may pay tax again, on dividends they receive. This is commonly referred to as "double taxation."

Congress created Subchapter S to provide many small businesses with another alternative.

Instead of paying income tax at the corporate level in most situations, the corporation's taxable income generally passes directly through to its shareholders. Each shareholder reports their share of the company's income on their individual tax return, whether the company distributes the cash or not. They use what is called a Schedule K-1 (Form 1120-S)

That distinction is important because it explains why S corporation distributions usually are not treated as dividends. Because the shareholder has often already paid tax on the income.

Many people assume that receiving money from a corporation automatically creates dividend income. With an S corporation, that usually isn't the case.

Instead, most distributions simply reduce the shareholder's stock basis. The IRS discusses this in Publication 550, its guidance on S Corporation Stock and Debt Basis, and Internal Revenue Code §1368.

Think of it this way. The IRS is keeping track of your investment in the corporation. When you receive a distribution, you are often receiving a portion of your own investment back rather than receiving a taxable dividend. That's a very different concept than most people are familiar with.

The easiest way I've found to explain stock basis is to compare it to owning rental property. Suppose you purchase a rental house for $300,000. The purchase price becomes your starting basis. Over time, improvements, depreciation, and other adjustments change that number. Stock basis works in a similar way.

It usually begins with:

From there, the number changes every year. Because it’s not a fixed number. This is one reason why many business owners lose track of it. Unlike your company's bank balance, stock basis is used in a tax calculation. 

QuickBooks Online, Xero, and many bookkeeping systems do an excellent job recording financial transactions, but they generally do not maintain shareholder stock basis automatically. Someone has to make sure to track it and calculate it.

Many owners assume distributions are the only thing affecting the basis. In reality, annual income and losses are equally important.

Generally, stock basis increases by:

Stock basis is generally decreased by:

Basically, your corporation may earn income even if you never withdraw the cash. Likewise, your basis may decrease because of business losses even though your checking account still has money in it. This is why the stock basis often moves differently than your bank balance.

This may be one of the biggest misconceptions. Imagine your company has $175,000 sitting in its checking account. Many owners naturally assume they can distribute the entire amount without tax consequences.

Not necessarily. Cash is simply an asset on your balance sheet. Stock basis is a completely separate tax calculation.

Two companies with identical financial statements could produce very different tax results because the shareholders have a different stock basis. This is why looking only at the company's bank balance before taking a distribution can be misleading. Your bank balance doesn't tell you how much taxable income will pass through to you, how much cash should be reserved for taxes and business obligations, or whether you have sufficient shareholder basis for the distribution.

For example, if you received a $40,000 distribution but had only $30,000 of stock basis available immediately before the distribution, the excess could have different tax consequences.

Let's look at two simple examples.

Your stock basis is $60,000.

You receive a $20,000 distribution.

Generally, your basis simply decreases to $40,000.

No taxable dividend.

Your remaining stock basis is only $8,000.

You receive a $20,000 distribution.

The first $8,000 generally reduces your remaining basis to zero.

The remaining $12,000 may become a taxable capital gain because you no longer have sufficient stock basis.

The IRS discusses these basis adjustments in IRC §1367, while the treatment of distributions is found in IRC §1368.

The lesson isn't that distributions are usually taxable. It's that distributions can become taxable once your stock basis has been exhausted.

I think business owners get this wrong because the accounting software they rely on doesn't emphasize the stock basis. Owners spend most of their time looking at cash flow, profit-and-loss statements, accounts receivable, and bank balances. Because this is what you do when you’re running a business.

Stock basis involves tax code. That's why business owners sometimes confuse having cash available with automatically having sufficient stock basis. They're two different measurements serving two different purposes.

Understanding that difference is one of the easiest ways to avoid preventable tax mistakes.

If you own an S corporation, create a simple annual stock basis worksheet.

Review it before making significant year-end distributions.

Keep track of:

Even if your tax professional prepares Form 7203 with your return, keeping your own running schedule throughout the year can make planning much easier.

First of all don't assume your bookkeeping software calculates shareholder basis. Most bookkeeping systems record distributions correctly for accounting purposes. This does not mean they have calculated your tax basis correctly.

Good bookkeeping and accurate stock basis calculations work together, but as we’ve discussed they are not the same thing. Clean, tax-ready books simply make the basis calculation much easier.

Understanding stock basis isn't about memorizing sections of the Internal Revenue Code. It's about being informed about how much your stock basis is, before you write yourself a distribution check. It's also about understanding why two business owners with similar amounts of money in their bank accounts can owe completely different amounts of tax.

Most importantly, it's about recognizing that good tax planning begins long before April 15. Sometimes the greatest tax savings don't come from discovering a brand new deduction. No, sometimes they come from understanding the rules that already apply to the money your business already has.

If you're unsure whether your S corporation distributions have been handled correctly, or you'd like your books organized so tax season becomes less stressful, I'd be happy to help. At The Smith Advisory LLC, we focus on two things:

One, we turn messy accounting processes into repeatable systems that save time and improve profitability.

Two, we configure and manage AI-assisted financial systems that allow businesses to serve more clients while reducing taxes and bottlenecks on their accounting systems such as QuickBooks Online, ProConnect Tax, Excel, and Google Sheets.

The result is building accurate financials through repeatable processes which help clients understand their financial numbers, so they can make the best financial decisions. The Smith Advisory LLC at [email protected]. A conversation today may help you avoid an unnecessary tax bill tomorrow.

This newsletter is provided for educational and informational purposes only and should not be construed as legal, tax, or accounting advice. Federal tax laws change over time, and every business owner's circumstances are different. Before making decisions regarding S corporation elections, shareholder distributions, stock basis calculations, or other tax matters, consult with a qualified tax professional regarding your specific situation. Reading this newsletter does not create a client relationship with The Smith Advisory LLC.