How Earnouts Work and When They’re Used
Few deal terms generate more anxiety—and more misunderstanding—than earnouts. For some founders, earnouts feel like a necessary evil. For others, they feel like a trap disguised as upside. And for buyers, earnouts are often viewed as a practical tool for bridging gaps that can’t be resolved with price alone.
The truth is that earnouts are neither inherently good nor inherently bad. They’re a mechanism. Like any mechanism, they can be used thoughtfully—or poorly. I’ve seen earnouts work exactly as intended, delivering meaningful upside to sellers. I’ve also seen them become the single biggest source of post-close regret founders experience.
In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I emphasize that most founder disappointment around earnouts comes not from bad intent, but from misaligned expectations. And if you’ve listened to the Legacy Advisors Podcast, you’ve heard Ed and me unpack earnouts as what they really are: a reflection of uncertainty, not a judgment on the quality of the business.
Understanding why earnouts exist, how they’re structured, and when they make sense is critical if you want to evaluate them rationally instead of emotionally.
What an Earnout Actually Is
At a basic level, an earnout is deferred consideration. A portion of the purchase price is paid in the future, contingent on the business achieving specific performance targets after closing.
Those targets might be tied to:
- Revenue
- EBITDA
- Gross profit
- Customer retention
- Product milestones
- User growth
- Other agreed-upon metrics
If the targets are met, the seller receives additional payment. If they aren’t, some or all of that payment is forfeited.
Simple in concept. Complex in execution.
Why Buyers Use Earnouts
Earnouts are not usually about squeezing sellers. They’re about managing uncertainty.
Buyers use earnouts when:
- There’s disagreement about future performance
- Growth assumptions differ
- The business is transitioning quickly
- The founder plays a critical role
- The market is volatile
- Integration risk is meaningful
In other words, earnouts show up when the buyer is saying, “We like the business, but we’re not fully comfortable underwriting all of the future upside upfront.”
That discomfort doesn’t mean the buyer thinks the business is weak. It means they don’t want to pay today for something they can’t yet verify.
On the Legacy Advisors Podcast, Ed and I often say that earnouts are how buyers price hope. They’re a way to acknowledge upside without betting the entire deal on it.
Why Founders Resist Earnouts
From a founder’s perspective, earnouts can feel deeply unfair.
Founders often think:
- “I already built this business.”
- “I shouldn’t have to earn it again.”
- “I don’t control the company anymore.”
- “What if priorities change?”
- “What if the buyer breaks what I built?”
Those concerns are valid. Earnouts introduce risk—and not all of that risk is within the founder’s control.
The problem arises when founders treat every earnout as a red flag instead of evaluating why it’s being proposed and how it’s structured.
When Earnouts Are Most Common
Earnouts tend to appear in specific situations.
They’re common when:
- Growth is recent or unproven
- Performance is volatile
- The business is early-stage
- The founder is central to success
- Valuation expectations diverge
- Strategic integration is complex
They’re less common when:
- Cash flow is stable and predictable
- Leadership is deep and independent
- Metrics are mature and consistent
- Buyer competition is strong
- The business is less founder-dependent
Understanding this context helps founders assess whether an earnout is a reasonable tool—or a warning sign.
The Hidden Purpose of Earnouts
Here’s something most founders don’t realize until it’s too late: earnouts are often less about paying more and more about paying differently.
Buyers use earnouts to:
- Reduce upfront risk
- Align incentives post-close
- Test assumptions
- Protect downside
- Justify valuation internally
In many cases, the total deal value doesn’t increase because of an earnout. The earnout simply shifts part of the consideration from guaranteed to contingent.
That distinction matters enormously when evaluating whether an earnout actually improves your outcome.
Earnouts and Valuation: The Quiet Tradeoff
Founders often look at earnouts as “bonus upside.” Buyers often look at them as “risk-adjusted pricing.”
If a buyer offers:
- $10M all cash at close, or
- $12M total with $3M tied to an earnout
…the second option may look better on paper. But it’s not automatically better in reality.
You have to ask:
- How achievable are the targets?
- How much control do I have?
- How likely is it that priorities shift?
- What happens if the market changes?
- How much risk am I accepting?
In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I stress that founders should evaluate earnouts based on certainty-adjusted value, not headline numbers.
The Most Common Earnout Metrics—and Their Pitfalls
Not all earnouts are created equal. The metric matters—a lot.
Revenue-Based Earnouts
These are common in growth-focused businesses. They’re easier to measure but can incentivize unhealthy behavior or be undermined by pricing changes, customer mix, or strategic shifts.
EBITDA-Based Earnouts
These align with profitability but are sensitive to cost allocation, investment decisions, and accounting treatment—many of which are controlled by the buyer post-close.
Gross Profit or Contribution Margin
Sometimes a compromise, but still subject to operational decisions outside the founder’s control.
Milestone-Based Earnouts
Often tied to product launches or customer wins. These can be binary and risky if dependencies exist.
The more the earnout metric depends on decisions made after closing, the more risk the seller assumes.
Control Is the Single Most Important Factor
Here’s the rule I come back to repeatedly:
If you don’t control the outcome, you shouldn’t be paid based on it.
Earnouts work best when:
- The founder retains real operational control
- Decision-making authority is clear
- Resources are committed contractually
- Metrics are narrowly defined
- Buyer interference is limited
Earnouts become dangerous when:
- The founder loses authority
- Budgets are reallocated
- Priorities shift
- Integration changes incentives
- Metrics become ambiguous
On the Legacy Advisors Podcast, we’ve discussed numerous cases where earnouts failed not because targets were unreasonable, but because control disappeared quietly after closing.
The Integration Risk Most Founders Underestimate
Many earnouts fail because of integration—not performance.
After closing, buyers may:
- Change pricing
- Shift sales strategy
- Reassign key personnel
- Merge systems
- Prioritize other initiatives
Even well-intentioned integration can disrupt momentum.
Founders often assume they’ll be “left alone.” Buyers often assume integration is necessary. When those assumptions collide, earnouts suffer.
This is why earnouts tied to metrics heavily influenced by integration are especially risky.
How Buyers Think About Earnout Probability
Buyers rarely assume earnouts will be paid in full.
Internally, many buyers:
- Discount earnout payments
- Treat them as optional upside
- Budget conservatively
- Expect partial attainment
That doesn’t mean buyers are acting in bad faith. It means they’re managing risk the same way they do everywhere else.
Founders who assume earnouts are “basically guaranteed” often experience the most disappointment.
When Earnouts Can Make Sense for Founders
Despite the risks, earnouts can make sense in certain situations.
They can be reasonable when:
- You believe strongly in near-term upside
- You retain control post-close
- Metrics are simple and objective
- The earnout period is short
- Buyer incentives align with yours
- The earnout bridges a real valuation gap
Earnouts can also make sense when:
- The alternative is a much lower guaranteed price
- You want to share upside risk
- You’re confident in execution
- The buyer has a track record of honoring earnouts
Context matters.
Red Flags Founders Should Take Seriously
There are certain earnout characteristics that should raise immediate concern.
Be cautious when:
- Metrics are vague or undefined
- Calculations rely on buyer discretion
- Earnout periods are long
- Multiple metrics must all be met
- Buyer controls all budgets
- Integration plans are unclear
- Past earnouts with the buyer have failed
These aren’t deal-killers by default—but they require careful negotiation.
Negotiating Earnouts More Intelligently
Founders don’t have to accept earnouts as presented.
Smart negotiation focuses on:
- Narrowing metrics
- Clarifying definitions
- Limiting buyer discretion
- Ensuring resource commitments
- Shortening earnout periods
- Adding protections against integration harm
- Improving reporting transparency
Sometimes the best negotiation isn’t about changing the earnout—it’s about reducing the size of it and increasing guaranteed consideration.
At Legacy Advisors, we often help founders decide whether to negotiate earnouts at all—or whether the better move is to shift focus back to price and certainty.
The Emotional Cost of Earnouts
One of the most overlooked aspects of earnouts is the emotional toll.
Living under an earnout can:
- Change how founders experience the business
- Create tension with new ownership
- Shift motivation
- Prolong the psychological exit
- Create resentment if goals feel unreachable
Some founders thrive under that structure. Others find it exhausting.
This isn’t just a financial decision. It’s a personal one.
Why Earnouts Are More Common in Certain Markets
Earnouts tend to increase when:
- Markets are uncertain
- Capital becomes more selective
- Valuations are contested
- Buyers become risk-averse
In hotter markets with abundant capital and competition, earnouts often shrink or disappear.
This is another reminder that earnouts are not about you—they’re about the market environment.
A Better Framework for Evaluating Earnouts
Instead of asking, “Is this earnout good or bad?” ask:
- What risk is the buyer trying to manage?
- Is that risk real?
- Who controls the outcome?
- What is the realistic probability of payment?
- How does this affect my net, certainty-adjusted outcome?
- How will this affect my life post-close?
Those questions lead to better decisions than reacting to the concept of earnouts itself.
Final Thought: Earnouts Don’t Create Value—They Allocate Risk
Earnouts don’t magically increase deal value. They redistribute risk between buyer and seller.
Sometimes that’s fair. Sometimes it isn’t.
The founders who navigate earnouts successfully aren’t the ones who avoid them at all costs. They’re the ones who understand why they’re being used—and who refuse to confuse potential upside with guaranteed value.
In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I sum it up this way: clarity beats optimism. Earnouts demand both.
Find the Right Partner to Help Sell Your Business
Earnouts require careful judgment, not blanket acceptance or rejection. If you want help evaluating whether an earnout truly improves your outcome—or simply shifts risk in ways you shouldn’t accept—Legacy Advisors helps founders navigate these decisions with experience, realism, and perspective.
Frequently Asked Questions About Earnouts
1. Why do buyers rely on earnouts instead of just lowering the purchase price?
Earnouts allow buyers to bridge uncertainty without walking away from a deal. When buyers believe there’s upside but aren’t comfortable paying for it upfront, earnouts let them share that risk with the seller. In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I explain that earnouts are often a compromise, not a critique. On the Legacy Advisors Podcast, Ed and I often note that buyers use earnouts to align price with performance when forecasts are debated. For founders, that means an earnout isn’t automatically a sign of mistrust—it’s a signal that the buyer sees potential but wants protection if reality falls short.
2. Are earnouts more common with certain types of buyers?
Yes. Earnouts are far more common with financial buyers and in situations involving growth uncertainty, founder dependency, or integration complexity. Private equity firms often use earnouts as a risk-management tool, especially when growth assumptions drive valuation. Strategic buyers may also use earnouts, but they’re often tied to integration milestones or retention rather than pure financial metrics. In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I emphasize that earnouts reflect buyer psychology and market conditions more than seller quality. On the Legacy Advisors Podcast, we regularly discuss how earnouts become more prevalent when markets tighten and capital becomes more selective.
3. What’s the biggest mistake founders make when evaluating earnouts?
The biggest mistake is treating earnouts as guaranteed upside instead of risk-adjusted consideration. Founders often anchor to the headline number without realistically assessing the probability of full payout or how much control they’ll have post-close. In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I stress evaluating earnouts based on certainty-adjusted value, not theoretical maximums. On the Legacy Advisors Podcast, Ed and I have seen many founders regret earnouts not because the buyer acted unfairly, but because expectations were misaligned from the start.
4. How can founders protect themselves when agreeing to an earnout?
Protection starts with control and clarity. Founders should push for earnout metrics that are objective, narrowly defined, and within their influence. Shorter earnout periods, clear reporting requirements, and protections against changes in strategy or resource allocation are critical. In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I emphasize that ambiguity is the enemy of earnouts. On the Legacy Advisors Podcast, we often advise founders to negotiate earnouts with the assumption that things will change post-close—because they usually do.
5. When does it make sense to walk away from an earnout altogether?
It may make sense to reject an earnout when the metrics are vague, the earnout period is long, or the buyer retains full control over decisions that affect performance. It’s also worth reconsidering if the earnout makes up a disproportionate share of the total value or if achieving it would require extraordinary effort under someone else’s priorities. In The Entrepreneur’s Exit Playbook (https://amzn.to/4iG7BAH), I point out that not all money is equal—certainty has value. If you’re unsure how to evaluate that tradeoff, Legacy Advisors can help you assess whether an earnout improves your real outcome or simply shifts risk you shouldn’t accept.