Selling a business is one of the most significant financial events in an entrepreneur's life — and one of the most tax-complex. The difference between a well-structured and a poorly structured business sale can easily represent hundreds of thousands of dollars in additional taxes. This guide covers the key federal tax considerations for business sellers in 2026, including the critical asset-vs-stock structure question, installment sales, earnouts, and the powerful QSBS exclusion.
The single most consequential tax decision in a business sale is whether it is structured as an asset sale or a stock (equity) sale. Buyers typically prefer asset sales because they receive a "stepped-up" tax basis in the purchased assets, enabling them to depreciate or amortise the full purchase price — reducing their future tax liability. Sellers typically prefer stock sales because the entire gain is taxed at preferential long-term capital gains rates (if held over one year). Asset sales are more complex for sellers because: different assets generate different character gains (ordinary income on depreciation recapture and inventory; capital gain on goodwill and appreciating assets), and the overall tax rate on the blended gain is typically higher than on a stock sale.
| Asset Type | Tax Character | Rate |
|---|---|---|
| Accounts receivable | Ordinary income | Up to 37% |
| Inventory | Ordinary income | Up to 37% |
| Section 1245 property (equipment) — depreciation recapture | Ordinary income | Up to 37% |
| Section 1250 property (real estate) — unrecaptured depreciation | 25% maximum rate | 25% |
| Capital assets held >1 year (land, goodwill, customer lists) | Long-term capital gain | 0–23.8% |
| Non-compete agreements | Ordinary income (to seller) | Up to 37% |
| Personal goodwill | Long-term capital gain (if properly structured) | 0–23.8% |
In a sale of S-corporation or subsidiary stock, the buyer and seller can jointly elect under Section 338(h)(10) to treat the stock sale as an asset sale for tax purposes. This gives the buyer the stepped-up basis they want while allowing the transaction to be structured as a stock sale legally. The seller pays more tax (asset sale rates) but often negotiates a higher price to compensate. This election requires careful modelling of each party's tax position.
If the buyer does not pay the full purchase price in the year of sale, the seller may be eligible to report the gain using the installment method (Form 6252). Under installment reporting, gain is recognised proportionally as each payment is received — potentially spreading the tax liability over many years and keeping the seller in lower brackets. Installment sales are not available for inventory, depreciation recapture (which must be reported in full in the year of sale), or publicly traded property.
Sellers of qualifying small business stock may be able to exclude up to 100% of their capital gain from federal tax under Section 1202. Requirements include: the stock must be in a domestic C corporation, the company's aggregate gross assets cannot have exceeded $50 million at issuance, the stock must have been acquired at original issuance, and the stock must have been held for more than 5 years. The exclusion is capped at the greater of $10 million or 10x the taxpayer's adjusted basis in the stock. For early-stage investors and founders, QSBS planning is one of the most valuable tax opportunities available.