2026 IRS brackets built in
Tax on Sale of a Business: Business Sale Tax Calculator for Capital Gains Tax and Net Proceeds After Fees
Enter the sale price, your tax basis and your other income, and this business sale tax calculator estimates the tax on the sale of a business the way the return will actually compute it: recaptured depreciation first at ordinary rates, then the long-term gain stacked on top at 0%, 15% or 20%, then state tax, then what lands in your account after the success fee.
Verified metrics · published multiples · vetted buyers · escrow-backed closes
Taxable gain
Total tax
Effective rate
You keep
Federal capital gains tax:
Tax on recapture:
Net investment income tax:
State tax:
Success fee:
Amount realized:
After tax you keep more than with a 10% broker on the same sale.
Educational estimate on 2026 federal rates · not tax advice · confirm with your CPA
The short answer to how much tax you pay on the sale of a business: most US owners who sell a business they held for more than a year pay a federal long-term capital gains rate of 15% or 20% on most of the gain, ordinary rates of up to 37% on any depreciation recapture, possibly the 3.8% net investment income tax, plus state tax. On a $2,000,000 sale by a married couple in a 5% state, that works out to about $437,000, or roughly 24% of the gain, on the defaults in the calculator.
The 2026 thresholds used here are the IRS figures from Rev. Proc. 2025-32: long-term gains are taxed at 0% up to $98,900 of taxable income for a joint return and $49,450 for a single filer, at 15% up to $613,700 joint and $545,500 single, and at 20% above that. Because the gain is stacked on top of your other income, a large sale pushes most of the gain into the 20% band.
This is an educational estimate, not tax advice. Entity type, the purchase price allocation, state residency and the timing of payments all change the answer, so confirm the numbers with a CPA before you sign a letter of intent.
The fee you pay to sell is deductible, so it costs less after tax than it looks. But it still costs real money: at $1,000,000 the gap between a 4% and a 10% success fee is $60,000 before tax and about $45,000 after it, on the defaults in the calculator.
How each piece of the sale is taxed
The federal rules the calculator applies, and the ones it leaves to your CPA
Dollar thresholds are the 2026 amounts published by the IRS. Rules the calculator does not model are listed so you know what to ask about.
Swipe to see every column →
| Piece of the sale | 2026 federal treatment | Source |
|---|---|---|
| Long-term capital gain (held over a year) | 0% up to $98,900 of taxable income (joint) or $49,450 (single); 15% up to $613,700 (joint) or $545,500 (single); 20% above | Rev. Proc. 2025-32, section 3.03 |
| Head of household and married filing separately | 0% to $66,200 and 15% to $579,600 (head of household); 0% to $49,450 and 15% to $306,850 (separate) | Rev. Proc. 2025-32, section 3.03 |
| Depreciation recapture on equipment and software (section 1245) | Ordinary income rates of 10% to 37%, stacked on top of your other income | IRC section 1245; rate tables in Rev. Proc. 2025-32 |
| Unrecaptured section 1250 gain on real estate | Taxed at a maximum of 25%; the calculator treats it as ordinary, which overstates it slightly | IRC section 1(h) |
| Net investment income tax | 3.8% on the lesser of the gain or modified AGI above $250,000 (joint), $200,000 (single) or $125,000 (separate); thresholds are not indexed | IRC section 1411 |
| Active owner selling a non-passive business | Gain from a trade or business you materially participate in is generally outside the 3.8% tax, so the box starts unticked | IRC section 1411(c)(2) and (c)(4) |
| Success fee, legal and other selling costs | Reduce the amount realized, so they come off the gain before any tax is computed | IRC section 1001 |
| Asset sale by a C corporation | Taxed twice: 21% at the corporation, then again when the proceeds are distributed. Not modeled; see the 338(h)(10) and QSBS pages | IRC sections 11 and 331 |
| C corporation stock held over 3, 4 or 5 years | Section 1202 can exclude 50%, 75% or 100% of the gain, capped at $15,000,000 for stock issued after 4 July 2025. Not modeled | IRC section 1202 |
| Seller note or earnout paid over years | An installment sale spreads the capital gain over the years you are paid, but recapture is taxed in the year of sale. Not modeled | IRC section 453; Form 6252 |
IRS Rev. Proc. 2025-32 read firsthand from irs.gov in September 2026. Statutes read from law.cornell.edu. This table is a summary, not tax advice.
2026 IRS brackets, our arithmetic
Tax on the sale of a business at five sale prices, and what the fee costs after tax
Each row: married filing jointly, $180,000 of other taxable income, $50,000 tax basis, $20,000 of recapture, $40,000 of legal and other costs, a 5% state rate, no net investment income tax. The two right-hand columns compare a 4% success fee with a 10% one.
Swipe to see every column →
| Sale price | Federal tax | State tax at 5% | You keep, 4% fee | You keep, 10% fee |
|---|---|---|---|---|
| $500,000 | $59,900 | $19,500 | $360,600 | $336,600 |
| $1,000,000 | $153,715 | $43,500 | $722,785 | $677,785 |
| $2,000,000 | $345,715 | $91,500 | $1,442,785 | $1,352,785 |
| $5,000,000 | $921,715 | $235,500 | $3,602,785 | $3,377,785 |
| $10,000,000 | $1,881,715 | $475,500 | $7,202,785 | $6,752,785 |
Our arithmetic on the 2026 IRS rate tables, computed at the 4% fee. Tax is a little lower at the 10% fee because the larger fee shrinks the gain. Not tax advice and not a forecast.
Side by side
This calculator vs a generic capital gains calculator
A fair look at what each does well. Both are useful. Here is where they differ.
| Feature | Buyouts | A generic capital gains calculator |
|---|---|---|
| Selling costs | Takes the success fee and legal costs off the amount realized before tax | Taxes the whole sale price |
| Depreciation recapture | Taxes it at ordinary rates first, then stacks the capital gain on top | Treats every dollar as capital gain |
| Rate bands | Stacks the gain on your other income across the 0%, 15% and 20% bands | Applies one flat rate |
| 3.8% surtax | Optional, with the section 1411 thresholds, off by default for active owners | Often always on, or missing |
| Fee comparison | Shows what you keep after tax versus a 10% broker | Not offered |
| Filing status | All four 2026 statuses from Rev. Proc. 2025-32 | Often single and joint only |
| What neither does | Model a C corporation asset sale, QSBS or an installment sale | The same |
Comparison reflects general, publicly understood positioning. Capabilities change, so check each marketplace for the latest. Trademarks belong to their owners.
Why founders and buyers pick Buyouts
One deal room built specifically for AI SaaS
The allocation decides the rate
In an asset sale the buyer and seller agree how the price splits across equipment, software, customer contracts, a non-compete and goodwill on Form 8594. Money assigned to depreciated equipment comes back as recapture at ordinary rates. Money assigned to goodwill is capital gain. The same price can carry very different tax depending on that split, so negotiate the allocation, not just the number.
The fee you pay is part of the math
A 10% broker fee on a $2,000,000 sale is $200,000. Listing on Buyouts costs a monthly plan of $79, $249 or $699 while you are listed plus a 5%, 4% or 3% success fee at close, and buyers pay no success fee. After tax, the gap between 4% and 10% on that sale is about $90,000 on the calculator defaults.
Verified numbers hold the price
Buyers cut the price when the revenue does not reconcile in diligence, and a lower price is a smaller gain but a much smaller check. Every SaaS listing on Buyouts carries MRR, ARR, churn and margin checked against the source systems, so the number you plan your taxes around is the number that closes.
Keep reading on the parts of a deal this page touches: spreading the gain with an installment sale and Form 6252, the section 1202 QSBS exclusion for C corporation stock, how the purchase price allocation decides what is recapture, the 338(h)(10) election when a buyer wants an asset sale, the F reorganization before an S corporation sale, every fee in selling a SaaS business, business broker fees compared, band by band.
Good questions
Tax on the sale of a business, answered
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The deal room for AI SaaS, not a yard sale
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Listings, metrics and buyers shown are illustrative product UI · valuation content is educational, not a guaranteed sale price or return · trademarks belong to their owners