The Keep vs. Sell Decision: The Math Your Business Broker Isn't Showing You
At some point, almost every founder I've worked with has sat across a table from a business broker and been handed a number.
The number looks good. Sometimes it looks great. And the broker — who is good at their job and genuinely believes in the deal — makes a compelling case for why now is the right time to sell.
What the broker rarely hands you is the other number. The one that answers a different question entirely: what would this business be worth if you didn't sell it?
That calculation doesn't appear in pitch decks. It doesn't get modeled in the broker's engagement letter. It's not that brokers are hiding it — it's simply not what they're paid to produce. Their job is to get the best possible price for your business. Your job is to decide whether selling at that price is actually the best decision for your wealth.
Those are two different jobs.
This piece is about doing yours.
Why the Default Math Is Incomplete
When founders evaluate a potential sale, they typically focus on the offer: the enterprise value, the multiple, the structure. Maybe they run a post-tax calculation to estimate what hits the bank account after the deal closes.
That's a start. But it answers the wrong question.
The right question isn't "is this a good price?" The right question is: compared to what?
A $10M offer might be excellent — or it might be giving up $18M in future value if you held the business for another five years. You won't know which is true without modeling both paths side by side.
This is the Keep vs. Sell framework. It's the analysis that changes the conversation.
The Keep Path: What You're Actually Giving Up
When you sell your business, you're not just receiving a check. You're trading away a compounding asset — one that generates earnings, grows in value, and operates as a wealth-building engine in ways a liquid portfolio often can't replicate.
To model the Keep path honestly, you need three inputs:
1. Your current EBITDA and growth rate What is the business earning today, and how fast is it growing? A business growing at 15% per year doubles its earnings in roughly five years. At 20%, it doubles in under four. That matters enormously for what a future sale might look like.
2. Your expected exit multiple at a future date Industry multiples fluctuate, but if you're in a sector with consistent M&A activity, it's reasonable to model what a sale at year three, five, or seven might look like on a larger EBITDA base. A business earning $1M today at a 5x multiple is worth $5M. That same business at $2.5M EBITDA in five years — still at a 5x multiple — is worth $12.5M.
3. Owner distributions in the interim If the business generates cash you can take out during the hold period, that's real wealth accumulation that belongs in the calculation. A business that pays its owner $300,000 per year over five years has produced $1.5M in distributions before any sale — value that disappears from the analysis if you only model the terminal exit.
Put those three inputs together and you have a reasonable picture of what the Keep path is worth.
The Sell Path: What You Actually Walk Away With
Most founders significantly overestimate the net proceeds from a sale. The headline number and the bank account number are rarely the same.
Here's where the gap comes from:
Federal capital gains tax Long-term capital gains are taxed at 20% federally for most founders at this income level. But business sales often include ordinary income components — consulting agreements, non-compete payments, asset allocations — that get taxed at rates up to 37%. The deal structure determines how much of your gain is capital vs. ordinary income, and that structuring conversation matters enormously.
QSBS exclusion opportunity If your company was organized as a C-corp when you acquired your equity, you've held the shares for at least five years, and the company met the gross assets threshold at issuance, you may qualify for the Section 1202 exclusion — potentially eliminating federal capital gains on up to $10M of gain, or 10x your adjusted basis, whichever is greater. This is one of the most significant tax planning opportunities available to founders and it must be evaluated before the deal closes, not after.
State taxes Depending on where you live, state capital gains taxes can add 5–13% on top of federal. California founders face a combined rate that can approach or exceed 37% on capital gains. If you're considering a move, the timing relative to closing day matters — state tax residency at the time of sale determines which state gets the revenue.
Transaction costs Broker fees typically run 5–10% on lower middle-market deals. Add legal fees, accounting, quality of earnings reports, representation and warranty insurance, and escrow holdbacks, and transaction costs can easily reach 8–12% of deal value. On a $5M sale, that's up to $600,000 leaving the table before taxes.
Post-sale investment returns Once the net proceeds are in hand, they need to work. A $4M after-tax, after-fee distribution invested in a diversified portfolio at a 6–7% annualized return generates real wealth — but it may not outpace a well-run, growing business with similar risk characteristics. The comparison depends on your specific numbers, risk tolerance, and what you'd actually do with the capital.
Run these numbers and the "good offer" frequently looks different than it did on the first page of the broker's deck.
A Real Scenario: Keep vs. Sell Side by Side
Let's make this concrete. Assume the following:
The Business Today
EBITDA: $800,000
Growth rate: 15% per year
Current offer: $5M (6.25x EBITDA)
Owner distributions: $200,000/year
The Sell Path
Gross proceeds: $5,000,000
Transaction costs (8%): ($400,000)
Federal capital gains (20%): ($920,000)
State taxes (assume 5%): ($230,000)
Net proceeds: approximately $3,450,000
Invested at 6.5% for 5 years: approximately $4,720,000
The Keep Path (5-year hold)
Year 5 EBITDA at 15% growth: approximately $1,610,000
Sale at 6x EBITDA: approximately $9,660,000
Less taxes and fees at sale: approximately ($2,000,000)
Cumulative distributions over 5 years: $1,340,000
Total Keep path value: approximately $8,000,000 — $9,000,000
In this scenario, the Keep path produces roughly double the wealth of the Sell path over five years. The broker's offer wasn't bad — it just wasn't the whole picture.
Now change one variable: assume the business grows at 5% instead of 15%, or the founder needs liquidity now, or the industry multiple contracts over the hold period. Suddenly the Sell path might win. The point isn't that holding is always right. The point is that the answer depends entirely on the specific inputs — and most founders never model it.
When Selling Is the Right Answer
This framework isn't an argument against selling. There are real, legitimate reasons to sell that have nothing to do with whether the math favors it.
Concentration risk is real. If the business represents 85% of your net worth, selling and diversifying is risk management — even if the Keep path has a higher expected value. Expected value doesn't matter much if the business hits a downturn and takes your entire financial life with it.
Market timing windows close. If your sector is experiencing peak M&A multiples and strong buyer demand, that window may not stay open. A 6x multiple today might be a 4x multiple in three years. Sometimes the right time to sell is when the market is ready, not when you are.
Founder burnout is a legitimate input. If staying means running a business you've stopped enjoying, the cost of that has real financial consequences — for the business and for you. A business run by a disengaged founder grows slower, retains less talent, and is worth less at exit. Sell before the resentment sets in.
Clarity on what comes next. The founders who navigate post-sale life best are the ones who knew before closing what they were building toward. If you have that clarity, and the proceeds fund the next chapter, the math of the Keep path matters less.
The goal of the Keep vs. Sell analysis isn't to talk you out of a sale. It's to make sure the decision is deliberate — made with full information, not just the numbers the broker brought to the table.
Run Your Own Numbers
If you're seriously evaluating a sale — or even just want to understand where you stand — the most useful thing you can do right now is model your specific situation.
We built the Sell Smart Planner for exactly this. It walks you through your business inputs, estimated sale price, taxes and fees, post-sale investment path, and produces a side-by-side comparison of your wealth trajectory across both paths. Everything runs privately in your browser.
The Conversation Worth Having
Most exit planning conversations start too late and stay too narrow. They focus on deal mechanics — structure, multiples, buyer type — without stepping back to answer the prior question: is selling the right decision at all, and if so, when?
That question deserves a real answer. Not a default, not a broker's enthusiasm, and not a decision made under time pressure without the full picture.
If you want to talk through where you stand — whether that's reviewing an offer on the table, modeling a future exit, or just understanding what your business is actually worth as a financial asset — I'm easy to reach.
Reply here or grab time on my calendar: forecastcapitalmanagement.com/contact
Jason C. Hilliard, J.D. is the CEO and Managing Director of Forecast Capital Management, a comprehensive wealth management firm serving entrepreneurs, founders, executives, and high-net-worth families.
This article is for educational purposes only and does not constitute financial, tax, legal, or investment advice. Individual circumstances vary. Consult a qualified CPA, attorney, or financial advisor before making decisions about your business or equity.
Related Tools:
Sell Smart Planner — Model your Keep vs. Sell comparison, net proceeds, and post-sale wealth trajectory
NQDC Scenario Tool — If the acquirer offers deferred compensation as part of your deal package
