How Much Tax Will I Pay When I Sell My Business?

You spent decades building this business. Don’t let taxes take more than their fair share at the finish line. Here’s what you’ll actually owe — and the strategies that can meaningfully reduce it.

"How much tax will I pay?" is the first question most business owners ask once they get serious about selling. It’s also the question that’s most often answered too late.

The honest truth: taxes on a business sale can be substantial. On a $5 million transaction, an owner who hasn’t planned carefully might see $1.5 to $2 million go to taxes. An owner who planned ahead, with the right team, might see that number cut nearly in half.

The difference isn’t luck. It’s timing.

The Two Deal Structures That Determine Your Tax Bill

Before getting into rates and numbers, it helps to understand that the structure of your sale — not just the price — determines how your proceeds are taxed.

Asset Sale

In an asset sale, the buyer purchases the individual assets of your business: equipment, inventory, customer contracts, intellectual property, goodwill, and so on. The legal entity itself remains with you.

Most buyers prefer asset sales because they inherit no unknown liabilities and get to “step up” the tax basis on purchased assets, creating future depreciation benefits for them.

For you as the seller, an asset sale is more complex. Different assets are taxed at different rates: some at favorable long-term capital gains rates, others at ordinary income rates as high as 37%.

Stock Sale

In a stock sale, the buyer purchases your ownership shares and inherits the entire company — assets and liabilities alike. Most sellers prefer this structure because the gain is generally all capital gains, taxed at preferential rates.

Stock sales are more common for larger transactions, C-corporations, and deals involving private equity buyers. For smaller businesses, buyers often push hard for asset sale treatment.

The good news: the structure is negotiable. An experienced M&A advisor knows how to bridge the gap between buyer and seller preferences — often through purchase price adjustments that make both parties whole.

Federal Capital Gains Tax

Long-term capital gains — gains on assets held for more than one year — are taxed at preferential federal rates:

• 0% if your taxable income is below approximately $47,000 (single) / $94,000 (married filing jointly)

• 15% for most middle-income earners

• 20% for high earners above approximately $518,000 (single) / $583,000 (married)

On top of the capital gains rate, high-income earners owe an additional 3.8% Net Investment Income Tax (NIIT) on investment income, including business sale gains. So the effective federal capital gains rate for a large transaction is often 23.8%.

Depreciation Recapture: The Tax That Surprises Most Sellers

If your business has depreciated equipment, vehicles, real estate improvements, or other assets over the years, the IRS “recaptures” that depreciation at the time of sale — and taxes it as ordinary income.

This is often the part of the tax calculation that surprises sellers the most. You might have depreciated a piece of equipment down to zero on your books. When you sell that equipment as part of a business sale, the IRS says the gain from that zero basis is ordinary income, taxed at up to 37%.

A good CPA will model this out for you well before closing, so there are no surprises.

State Taxes on the Sale

Don’t overlook state taxes — they can add meaningfully to your total tax bill depending on where you live.

• States with no income tax (Florida, Texas, Washington, Nevada, etc.): No additional state tax on the sale

• California: State capital gains taxed as ordinary income, up to 13.3%

• New York: Up to 10.9% state + city taxes for New York City residents

• Most other states: 4–8% on capital gains

Where you’re domiciled at the time of the sale matters enormously. If you’ve been considering a move, this is worth a serious conversation with your tax advisor before you sign an LOI.

5 Legal Strategies to Reduce Your Tax Bill

Here’s the most important thing to understand about tax planning on a business sale: almost every meaningful strategy requires advance planning — often 1–3 years before closing. Once a letter of intent is executed and exclusivity begins, most of your options disappear.

1. Installment Sale

Rather than receiving all proceeds at closing, you agree to accept payments over several years. This spreads your income across multiple tax years, keeping you in lower brackets and deferring tax liability.

The tradeoff: you don’t receive all the money upfront, and there’s some credit risk if the buyer’s circumstances change. For the right buyer and deal structure, this can be a powerful tool.

2. Pre-Sale Retirement Plan Contributions

Contributing to a qualified retirement plan — a SEP IRA, cash balance pension plan, or 401(k) with profit sharing — before the sale can shelter a meaningful portion of your final year’s income from tax. A cash balance plan, in particular, can allow contributions of $100,000 to $300,000+ per year for owners in their 50s and 60s.

These contributions must be made while you still own the business. You can’t establish a new plan and fund it retroactively after the sale is announced.

3. Donor Advised Fund (DAF)

If charitable giving is part of your values or estate plan, a Donor Advised Fund is one of the most tax-efficient tools available to business owners before a liquidity event. You contribute appreciated assets or cash to the DAF, receive an immediate charitable deduction, and then grant the funds to your chosen charities over time at your own pace.

The key: the contribution must typically be made before a definitive sale agreement is signed.

4. Qualified Opportunity Zone (QOZ) Investment

If you reinvest capital gains into a Qualified Opportunity Zone fund within 180 days of the sale, you can defer — and potentially reduce — your capital gains tax. If you hold the QOZ investment for 10 years, any appreciation in that investment is permanently excluded from federal tax.

This strategy requires working with an advisor experienced in QOZ investing, and the funds must be committed on a specific timeline post-close.

5. Qualified Small Business Stock (QSBS) Exclusion

If you own stock in a qualified C-corporation that you’ve held for at least 5 years, and the company met certain criteria at the time of issuance, you may be eligible to exclude up to 100% of your federal capital gains from tax under Section 1202 of the tax code.

QSBS eligibility is complex and has specific requirements, but for those who qualify, it’s one of the most powerful tax benefits available. Talk to your CPA early if you think this might apply to you.

One More Thing: Work Backward from Your Net

We said this above and we’ll say it again: the purchase price is not what you take home. After taxes, advisor fees, and deal structure adjustments, a $5 million sale might net $3–3.5 million to you personally.

That number needs to align with your retirement plan. The conversations about what you need, what the business is worth, and what tax planning strategies make sense — those conversations should happen together, with your M&A advisor and your financial advisor in the same room.

The best outcomes happen when all of your advisors are working in coordination, not in isolation.

Disclaimer: This article is for general educational purposes only and does not constitute tax or legal advice. Every business sale is different. Please consult with a CPA and M&A advisor who can analyze your specific situation.