Asset vs share sale tax impact estimator
This tool provides a simplified estimate only. Tax treatment varies by jurisdiction, entity type, and deal structure. Always consult a qualified accountant or tax attorney before making decisions based on these figures.
See how much more — or less — you net in a share sale versus an asset sale, and understand what price premium you'd need in an asset sale to walk away with the same amount after tax.
Asset vs share sale tax impact estimator
Comparison
| Asset sale | Share sale | |
|---|---|---|
| Sale proceeds | — | — |
| Taxable gain | — | — |
| Ordinary income tax | — | — |
| Capital gains tax | — | — |
| Total tax | — | — |
| Net after tax | — | — |
| Effective tax rate | — | — |
—
Asset sale price needed to match share sale net
The negotiating dynamic
Buyers prefer asset sales because they get a stepped-up tax basis — they can depreciate the assets they buy at the purchase price, reducing their future tax bill. Sellers prefer share sales because their entire gain is taxed at the lower capital gains rate.
The common resolution is a price adjustment: the buyer gets an asset sale structure (which they value for the basis step-up), and the seller receives a higher headline price to compensate for the extra tax burden. The "price needed to match" figure above is the starting point for that negotiation.
Another common arrangement is a 338(h)(10) or 336(e) election (US-specific), which allows certain share sales to be treated as asset sales for tax purposes — the parties split the resulting tax savings. Speak to a tax attorney about whether this applies to your situation.
About this tool
Enter your sale price, adjusted cost basis, ordinary income tax rate, and capital gains rate to compare net after-tax proceeds under an asset sale versus a share (stock) sale. Asset sales tax more of the gain as ordinary income; share sales tax the entire gain at capital gains rates. The tool shows the difference, calculates the asset sale price premium needed to net the same as a share sale, and explains the negotiating dynamic between buyers and sellers.
Frequently asked questions
Why do buyers prefer asset sales and sellers prefer share sales?
In an asset sale, buyers get a "stepped-up" tax basis in the assets they purchase — meaning future depreciation and amortisation deductions are based on the purchase price, not the seller's historical cost. This reduces the buyer's future tax liability. The downside for sellers is that some of the gain is taxed as ordinary income (higher rate) rather than capital gains. In a share sale, the seller's entire gain is typically taxed at the lower capital gains rate, but the buyer inherits the seller's historical cost basis — no step-up.
What is the cost basis?
Your adjusted cost basis is roughly what you paid to acquire or build the business, adjusted for depreciation, improvements, and distributions over time. For a bootstrapped business, this is often close to $0 (just your initial investment). For an acquired business, it's typically your purchase price adjusted for depreciation and improvements since acquisition. Consult your accountant for the precise figure — it directly determines your taxable gain.
What counts as "ordinary income" in an asset sale?
In an asset sale, different assets receive different tax treatment. Depreciation recapture (§1245 and §1250 in the US) is taxed as ordinary income — so any assets you've depreciated over time get taxed at your full income rate on the recaptured amount. Accounts receivable, inventory, and some intangibles can also be ordinary income. Goodwill, customer relationships, non-compete agreements, and IP are typically capital gains. The percentage depends on your specific asset mix — 20–40% as ordinary income is common for asset-heavy businesses.
Does this tool handle corporate (C-corp) tax?
No — this tool models pass-through taxation (sole traders, LLCs, S-corps, partnerships) where business income flows directly to the owner's personal return. C-corps face double taxation on asset sales: the corporation pays corporate tax on the gain, then shareholders pay personal tax on the distribution. If you operate as a C-corp, speak to a tax advisor before using these estimates.
How accurate is this estimate?
It's a simplified model — it doesn't account for state-specific rules, instalment sale treatment, qualified small business stock (QSBS) exclusions, net investment income tax (3.8% in the US above certain thresholds), or the interaction between capital gains and ordinary income brackets. Use it to understand the structure of the decision and the approximate magnitude of the difference, then verify the numbers with a CPA or tax attorney before signing anything.