When a buyer and seller can’t agree on what a business is worth, a deal doesn’t have to fall apart. Often, it just gets structured differently. That’s where earnouts come in.

If you’re buying a business, selling one, or just want to understand how deals actually get done, here’s a plain-English breakdown of what an earnout is, how it works, and what to watch out for on both sides of the table.

What Is an Earnout?

An earnout is a portion of a business’s purchase price that is contingent on the business hitting specific performance targets after the sale closes.

In plain terms: the seller gets some money upfront at closing. The rest comes later, but only if the business performs as expected under new ownership.

Example: A buyer offers $2 million for a business. The seller thinks it’s worth $2.5 million. Rather than walk away, they agree to $2 million at closing plus up to $500,000 in earnout payments if the business hits $1 million in revenue over the next two years. If the business hits those targets, the seller gets paid. If it doesn’t, the buyer doesn’t owe the difference.

Earnouts are common in small business acquisitions, lower-middle-market deals, and any situation where the buyer and seller have a gap in how they value future performance.

How Earnouts Work in M&A Deals

The earnout is written into the purchase agreement as a separate provision. It specifies:

• The performance metric: Revenue, EBITDA, gross profit, customer count, or another measurable target.
• The measurement period: Usually one to three years post-close.
• The payment structure: A lump sum if the target is hit, or tiered payments based on how close the business gets to the target.
• Reporting and verification: How performance will be tracked and who audits the numbers.

Earnouts are most common in deals involving:

• High-growth businesses where valuation is speculative
• Businesses where the founder’s relationships drive significant revenue
• Industries with volatile or uncertain near-term outlooks
• Deals where the buyer doesn’t have full confidence in the projections

Why Sellers Accept Earnouts

The short answer: to bridge the valuation gap and get the deal done.

If a seller believes the business will hit $3 million in revenue next year but the buyer only values it based on last year’s $2 million, someone has to bend. Earnouts let the seller say: “Pay me based on what I know this business will do.” If the seller is right, they get paid. If they’re wrong, they don’t.

Sellers also accept earnouts when:

• The buyer’s upfront offer is solid but below the seller’s ask
• The seller wants to stay involved post-close and has confidence in their ability to drive results
• Market conditions favor buyers and a partial earnout is better than no deal

Understanding how capital is structured in deals like this connects directly to broader wealth-building strategies. See how the ultra-wealthy use debt as a weapon for context on how sophisticated buyers think about deal structure and leverage.

Risks for Sellers

Earnouts favor buyers on paper. Here’s why sellers need to go in with their eyes open:

Loss of Control

Once the deal closes, the buyer runs the business. If they make decisions that tank revenue, or shift focus away from the business unit generating your earnout, you may miss your targets through no fault of your own. You no longer have the keys.

Accounting Disputes

Disagreements over how revenue or EBITDA is calculated are common post-close. If the purchase agreement isn’t airtight about definitions, you could hit your target and still end up in a dispute about whether you actually hit it.

Integration Risk

Buyers sometimes fold the acquired business into their existing operations in ways that make the earnout metric impossible to track cleanly. The merged entity looks nothing like what you agreed to measure.

Risks for Buyers

Earnouts aren’t risk-free for buyers either:

Misaligned Incentives

If the seller stays on to help hit earnout targets, they may optimize for the metric rather than for the long-term health of the business. Short-term revenue might be pumped at the expense of margins, customer quality, or operational investment.

Post-Acquisition Conflict

When the seller has a financial stake in how you run their old company, disagreements about strategy can get personal fast. Earnout periods are often rocky when the two parties have different visions.

Contingent Liability

If the earnout is structured well and the business performs, you owe more than the upfront purchase price. That cash has to come from somewhere. Budget for it.

Earnout Negotiation Tips

Use Clear, Objective Metrics

Revenue is cleaner than EBITDA because it’s harder to manipulate. If EBITDA is the metric, define exactly how it will be calculated and which expenses are included. Vague language in the earnout provision costs money later.

Keep the Timeframe Short

One to two years is the sweet spot. Three years is acceptable for complex deals. Longer than that and both parties are guessing too far into the future. Markets change. People change. The cleaner and shorter the earnout period, the less room for conflict.

Protect the Seller’s Ability to Earn

If you’re the seller, negotiate operating covenants that prevent the buyer from making decisions that would directly undermine your ability to hit the target. This includes restrictions on budget cuts, key hires, or product changes during the earnout period.

Arm’s-Length Management

Structure the earnout so the acquired business operates with enough independence to be measured fairly. Buyers shouldn’t be able to load costs onto the business post-close in ways that kill the metric. Sellers shouldn’t be able to defer expenses to inflate a short-term number.

If you’re serious about acquisitions and business credit plays a role in financing them, understand how lenders evaluate your business profile: Dun & Bradstreet vs Experian vs Equifax for business credit is a good place to start.

The Bottom Line

An earnout is a tool for closing deals that would otherwise stall on valuation. Used well, it aligns incentives and gets both parties across the finish line. Used poorly, it creates 18 months of conflict and a legal dispute.

If you’re entering an earnout as a seller, get specific protections in writing. If you’re the buyer, structure the metrics so you’re paying for real performance, not accounting tricks. Either way, the details in the purchase agreement matter more than the headline number.

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