The short answer
Most of the tax result of a sale is set by decisions made before the letter of intent: whether the deal is an asset sale or a stock sale, how the price is allocated, whether part of it is paid over time, and how the company and its owners are structured. Once terms are signed, many of those options are gone.
Asset sale or stock sale
Buyers often prefer to buy assets, because they get a stepped-up tax basis and leave most liabilities behind. Sellers often prefer to sell stock, because the gain is generally capital gain. In an asset sale, the price is allocated among the assets, and parts of it, such as depreciation recapture on equipment, can be taxed as ordinary income. For a C corporation, an asset sale can mean tax at the company level and again when proceeds are distributed.
Getting paid over time: installment sales
Under Section 453, when at least one payment is received after the year of sale, the seller can generally report gain as payments come in instead of all at once. Depreciation recapture is still reported in the year of sale, and the seller takes on the buyer’s credit risk.
QSBS for C corporation owners
If the company is a C corporation and the stock qualifies under Section 1202, some or all of the gain may be excluded from federal tax. For stock issued after July 4, 2025, the exclusion is 50% after three years, 75% after four and 100% after five, up to the greater of $15 million or 10 times basis per issuer. Many service businesses do not qualify.
A pre-sale checklist
- Get two to three years of financial statements in order, prepared consistently.
- Model the after-tax result of an asset sale and a stock sale.
- Check entity elections and ownership for QSBS, S corporation and state issues.
- Clean up contracts, leases and IP ownership a buyer will review.
- Decide on estate and gifting moves, such as transfers to trusts, while the value is still lower.
- Line up legal and tax advisors before the letter of intent, not after.
Asset sale vs stock sale
| Asset sale | Stock sale | |
|---|---|---|
| Buyer generally prefers | Yes, for basis step-up and fewer liabilities | Less often |
| Seller tax character | Mix of capital gain and ordinary income | Generally capital gain |
| C corporation seller | Possible tax at company and shareholder level | One level of tax to shareholders |
| Liabilities | Mostly stay with the seller | Transfer with the company |
Questions owners ask
When should I start planning a sale?
Ideally two to five years before. Some strategies, including QSBS holding periods and trust transfers, need time to work.
What is a deferred sales trust?
A structure in which a business is sold to a trust that pays the seller over time, aiming for installment-sale treatment. It has no specific IRS approval and carries real risk, so it needs careful legal and tax review before use.
Sources
- IRS Publication 544: Sales and other dispositions of assets
- IRS Tax Topic 705: Installment sales
- 26 U.S.C. § 453: Installment method
- 26 U.S.C. § 1202: Qualified small business stock
This guide is general information, not legal, tax or investment advice for your situation, and it may not reflect changes in the law after the date above. Talk to a qualified professional before acting on it.
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