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Asset Sale or Stock Sale? The Double Tax on a C Corporation

If the buyer wants the assets rather than the stock, what does the second layer of tax cost, and what price would make up for it? Every piece below can be linked to, so it opens in a window on your reader's screen, current as of the record. No form to fill in.

2026 law · Reviewed September 7, 2026 · The full page, with methodology and sources · the terms · All tools

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The price, the corporation's basis in its assets, your stock basis, and your rate; what you keep under each route, the double-tax cost, and the asset price that would make the two equal. In a frame it carries no cookies, no tracking, and a visible link back to the methodology. Your site has to allow frames; most do. The link that opens it in a small window is on the professionals page.

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In plain words.
A C corporation is taxed as its own person. If it sells its assets, it pays corporate tax on the profit, and when it hands the rest to you, you pay tax again on the money over what your stock cost. If you sell the stock instead, you pay once. Buyers often prefer to buy assets, because they get to depreciate what they paid. This tool takes the price, what the corporation's assets cost, what your stock cost, and your rate, and shows both routes side by side with the gap between them.
Why it matters.
The first thing a buyer's letter of intent says is whether it is an asset deal or a stock deal, and the difference can be a fifth of the price. Knowing the gross-up, the higher asset price that leaves you even, is what lets you answer.
An example.
A corporation sold for $5,000,000 with $1,000,000 of basis in its assets and $500,000 of stock basis, at 20 percent plus the surtax: an asset sale leaves about $3,289,000 after $840,000 of corporate tax and $871,000 at your level. A stock sale leaves $3,929,000. The double tax costs about $640,000, and an asset buyer would have to pay about $6,063,000 to make up for it.
Where it stops.
It models a C corporation only, with no state tax, no election to treat a stock sale as an asset sale, no losses carried into the year, and no exclusion for qualified small business stock. An S corporation pays one level of tax and is a different calculation.

Everything here reads from one reviewed record, so a copied piece carries its year and its review date. When the law moves, the embed updates by itself; a copied table or chart keeps the year in its caption. Corrections are welcome through the contact page.