Capital Gains (Short vs Long Term)
The tax treatment of gain from selling a capital asset (like a business). Long-term capital gains (asset held >1 year) are taxed at preferential federal rates (typically 20%); short-term gains and ordinary income can be taxed at up to 37%.
Full Definition
Capital gains treatment is one of the most valuable tax preferences in the US code, and for business sellers, it's often the difference between keeping 75–80% of a sale and keeping 60–65%. Federal long-term capital gains rates: 0% for low-income taxpayers, 15% for middle incomes, 20% for high incomes (single filers above ~$518K, married above ~$584K in 2025). The 3.8% Net Investment Income Tax (NIIT) may add to high earners. Short-term gains (held <1 year) are taxed as ordinary income, up to 37% federal plus NIIT.
How it actually works: In a stock sale by an individual who has held for more than a year, the entire gain is typically long-term capital gains. In an asset sale, the gain gets allocated across asset categories: goodwill and intangibles (long-term capital gain), inventory (ordinary income), depreciation recapture on equipment (ordinary income, Section 1245), depreciation recapture on real estate (25% rate, Section 1250), accounts receivable (ordinary income). The allocation (driven by Section 1060) determines the blended tax rate.
For an S-corp owner, this flows to the individual level regardless of entity structure. For a C-corp, there's double taxation: the C-corp pays tax on asset sale proceeds, then the individual pays tax when proceeds are distributed as dividends or liquidation.
State taxes add to this. California: 13.3% at the top rate. New York: 10.9%. Texas and Florida: 0%. The difference between selling in California and Texas on a $20M capital gain is roughly $2.6M of taxes.
Seller vs. Buyer Perspective
Tax planning can meaningfully change your after-tax proceeds. Key levers: (1) hold period — ensure long-term treatment before selling (1 year); (2) entity structure — S-corps and LLCs flow gains through at individual rates, C-corps face double taxation; (3) deal structure — stock sale preserves capital gains treatment better than asset sale; (4) state residency — if you have flexibility, consider residency in a low-tax state before the sale (with good tax planning support, not last-minute); (5) Section 1202/QSBS — if eligible, can exclude up to $10M of gain; (6) installment sale treatment — spreads gain across multiple years; (7) Opportunity Zone investment — defers and potentially reduces gains. Engage a tax advisor 12–24 months before sale for meaningful planning. Post-sale, many options are gone.
The buyer's tax position is less variable, but know the structures that affect the seller — the seller's tax situation drives their acceptable deal structure. If you want a 338(h)(10) election, offer a gross-up. If you want asset sale treatment, understand you may need to pay a premium to compensate for the seller's tax hit. Your tax benefit from asset step-up is real and worth paying for — model the NPV of future tax deductions and compare to the gross-up required. Often the math works in both parties' favor.
Real-World Example
A 62-year-old business owner sells her S-corp for $22M after 18 years of ownership. Her basis: $400K (initial investment plus retained earnings that increased basis). Total gain: $21.6M. In a stock sale, all $21.6M is long-term capital gain: federal tax at 20% = $4.32M, plus 3.8% NIIT = $821K, plus state (Massachusetts 9%) = $1.94M. Total tax: $7.08M. Net proceeds: $14.92M (67.8% of sale price retained). Same deal as a 338(h)(10) asset sale with $3M depreciation recapture and $1.2M inventory gain: $4.2M taxed at ordinary income rates (37% federal + NIIT + state) ≈ $2.12M; remaining $17.4M at long-term capital gain rates ≈ $5.67M. Total tax: $7.79M. Net proceeds: $14.21M. Difference: $710K more in tax on the asset sale, which would need to be grossed up by the buyer to keep the seller whole. Gross-up analysis then turns on the buyer's tax benefit from step-up, usually making both deals work.
Why It Matters & Common Pitfalls
- !Entity structure matters years in advance. Converting from C-corp to S-corp requires a 5-year built-in gains tax period before benefits fully accrue. Plan early.
- !QSBS/Section 1202 is potentially enormous — up to $10M (or 10x basis) of gain can be entirely excluded from federal tax for qualifying C-corp stock. Most SMBs don't qualify, but eligible businesses should explore this aggressively.
- !Installment sale treatment spreads recognition over multiple years (matching seller-note payments) but has trade-offs with interest and AMT.
- !State tax planning is tricky and regulated. Moving states before a sale requires genuine relocation (employment, home, state ID) and has been aggressively challenged by states. Don't do cosmetic relocations.
- !Estate planning interaction. Pre-sale gifts to irrevocable trusts can move some gain outside the taxable estate. Complex and requires planning 12+ months ahead.
- !Deferred compensation traps. "Earnout" payments sometimes get recharacterized as compensation (ordinary income) instead of purchase price (capital gain). Document properly.
Frequently Asked Questions
What's the capital gains tax rate on a business sale?↓
Why does stock sale vs asset sale affect my taxes?↓
What is QSBS and does it apply to my business sale?↓
Related Terms
Installment Sale
A sale where the seller receives payments over multiple years and — if elected — recognizes the taxable gain ratably as payments are received rather than all in the year of sale. Available for seller notes and earnouts in most circumstances.
Purchase Price Allocation
The allocation of total purchase price across asset categories (inventory, equipment, real estate, goodwill, etc.) for tax purposes under IRC Section 1060 — affecting seller's tax treatment and buyer's future depreciation deductions.
Asset Sale
A transaction in which the buyer purchases specific assets and assumes specific liabilities of a business, while the seller retains the legal entity — contrast with a stock sale, where the entity itself changes hands.
Stock Sale
A transaction in which the buyer purchases the stock (or equity interests) of the target company, acquiring the entity itself along with all its assets and liabilities — contrast with an asset sale.
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Disclaimer: The information provided on this page is for educational and informational purposes only. It should not be considered financial, legal, or investment advice. Business valuations depend on many factors specific to each situation. Always consult with qualified professionals — including business brokers, CPAs, and M&A attorneys — before making acquisition or sale decisions. LegacyVector is not a licensed broker, financial advisor, or attorney. Data shown may be based on limited samples and may not reflect current market conditions.
LegacyVector Research Team
Reviewed by M&A professionals · Updated April 2026