A post-acquisition dispute is a fight that breaks out after a business sale closes β typically over a purchase-price true-up, an unpaid earn-out, or a broken financial representation β and the damages turn on proving what the company’s numbers actually were at closing, then running that difference through the deal’s valuation multiple. When the closing balance sheet, the post-closing performance, or the seller’s pre-sale disclosures don’t match what the buyer thought it bought, the money at stake is often a multiple of the raw accounting error, not the error itself.
I’m Joey Friedman, a CPA, Accredited in Business Valuation (ABV), and forensic accountant who works as an economic-damages expert witness in Florida. Deals close, and then the parties discover that the financial picture they shook hands on was not the one that showed up. The recurring fights fall into a handful of buckets, and each one is quantified differently. Below I walk through the four that come up most often β working-capital true-ups, earn-outs, breach of a financial representation, and fraud β and explain why a single dollar of misstated earnings can swell into several dollars of economic damages once a valuation multiple is applied.
How a Deal Is Built β and Where the Cracks Form
To understand where these disputes come from, it helps to see what the parties actually agreed to. Most acquisitions are memorialized in a long, heavily negotiated purchase agreement. Buried in that document are the provisions that later become battlegrounds: the seller’s representations and warranties about the business, the covenants governing how the company will be run, the indemnification mechanics that decide who pays when something goes wrong, and the formulas that adjust the price after closing.
A buyer pays a price built on two things: the earnings stream it expects to receive going forward, and the working capital it needs to keep the doors open the day after closing. The most common way to size that price is to take a measure of earnings β usually EBITDA β and apply a multiple drawn from comparable companies and comparable transactions. That multiple is the lever that makes post-acquisition damages so large. If a business sells for six times EBITDA, then every dollar of EBITDA the buyer thought it was getting is worth six dollars of price. Misstate the earnings, and you misstate the price by six times the error.
The seller’s representations exist precisely because due diligence is never perfect and neither side can afford to chase down every last detail. So the buyer extracts promises: that the financial statements fairly present the business under GAAP, that material facts (a lost customer, a pending lawsuit, an environmental liability) have been disclosed, that nothing has materially deteriorated, and that the company has been run in the ordinary course. When one of those promises turns out to be false, the buyer has a claim β and my job is to translate the broken promise into a number.
Purchase-Price and Working-Capital Adjustments
The closing true-up
Between the day the parties sign and the day they close, the business keeps operating. Receivables get collected, inventory turns, payables accrue. So almost every deal contains a mechanism to true up the price after closing based on the actual working capital delivered at the closing date.
The math is straightforward in concept. The parties negotiate a target β often called the “peg” β for working capital: the normal level the business needs to run. At closing, the buyer measures actual working capital and compares it to the peg. If the company delivers less than the peg, the price comes down by the shortfall. If it delivers more, the price goes up. The adjustment protects the buyer against a seller stripping cash and assets out of the business on the way out the door, and it protects the seller against handing the buyer a windfall.
A simplified illustration: if the agreed peg is $20 million of working capital and the business shows up at closing with only $18 million, the buyer is entitled to a $2 million reduction in what it pays.
Why these true-ups turn into disputes
The trouble is that “working capital” is not a single hard number β it’s a stack of accounting estimates. The fights almost always live in the judgment accounts:
- Accounts receivable and the allowance for doubtful accounts β how much of what’s owed is actually collectible
- Inventory and its obsolescence reserves β whether slow-moving or dead stock is carried at a value it could ever recover
- Accounts payable and accrued liabilities β whether every obligation that existed at closing was actually booked
- Warranty, litigation, and benefit accruals β anything that requires management to estimate a future cost
The governing standard in most agreements is something like “GAAP, consistently applied,” and that phrase is where buyer and seller part ways. A buyer will argue the seller’s reserves were too thin and the closing balance sheet overstated the company’s worth. The seller will counter that its estimates were perfectly defensible based on what was known or knowable when the statement was prepared. A buyer who collects a string of bad debts after closing will say that proves the allowance was understated; the seller will say hindsight isn’t the test β the question is what a reasonable accountant would have estimated at the time.
There’s a further wrinkle when the buyer attacks not just the closing balance sheet but the negotiated peg itself. If the agreement says the target was also supposed to be prepared under GAAP, the seller may demand both numbers be restated consistently. If the agreement simply fixed the peg as a dollar amount the parties bargained for, the buyer will resist any move to reopen it. That distinction β was the peg a GAAP calculation or just a negotiated figure β frequently decides the case.
The independent-accountant process
Most agreements anticipate this and build in a resolution path. The parties exchange their competing closing statements, try to settle the open items, and submit whatever remains to a neutral accountant. That neutral may be empowered as a true arbitrator or, in narrower agreements, as an “expert only” β a distinction with real consequences for how much the neutral is allowed to interpret the contract versus simply crunch the disputed accounts. Each side submits a position paper with its calculations and support; sometimes there are rebuttals and a hearing. The decision usually binds the parties, and it tends to cost far less than full-blown litigation.
When I’m engaged on one of these, my work is to determine what each disputed account should be under the agreed accounting principles, support that conclusion with the underlying records, and quantify the dollar effect on the true-up. I tie out the closing numbers to source documents and show exactly where the buyer’s and seller’s positions diverge and why.
Earn-Out Disputes
What an earn-out is
An earn-out makes part of the price contingent. Instead of paying everything at closing, the buyer agrees to pay more later if the business hits negotiated targets over a defined window β say, the next one to three years. Earn-outs bridge a disagreement about value: the seller believes the company will keep growing, the buyer isn’t willing to pay for growth that hasn’t happened yet, so they split the difference and let the future settle the argument.
Earn-outs can be structured several ways β a fixed bonus for hitting a milestone, a percentage of some performance measure, or a multiple of a performance measure. And the choice of which metric drives a built-in tension. Sellers favor measures high on the income statement, like revenue, because they’re harder to manipulate downward with discretionary expenses. Buyers favor measures lower down, like EBITDA or net income, because those absorb the costs of running and integrating the business. Whether the earn-out is pegged to revenue or to EBITDA often matters as much as the target number itself.
Where earn-out fights come from
Earn-out disputes cluster into three recurring patterns:
- Measurement fights β disagreement over which costs count when scoring performance against the target. Should post-closing financing costs, integration expenses, goodwill impairment, allocated corporate overhead, or a newly accelerated depreciation policy be allowed to drag the metric below the threshold? A buyer that loads the acquired business with charges it never carried before can push earnings under the bar and avoid the payment.
- Accounting-methodology fights β many agreements require the buyer to keep the books “consistently” with the company’s historical accounting. When the buyer instead increases an inventory reserve, books a bigger litigation accrual, or otherwise changes a policy, the seller cries foul and the buyer responds that it was simply conforming the books to GAAP. Someone has to determine which side is right and what the metric would have been either way.
- Operating-conduct fights β the most contentious category. Here the seller alleges the buyer ran the business in a way that sabotaged the earn-out: starving it of capital, letting a key contract lapse, walking away from opportunities, shutting down a product line, or shifting customers and revenue to a sister company so they wouldn’t count. Many agreements contain a promise that the buyer will operate the business in good faith and consistent with past practice, and Florida law also recognizes an implied covenant of good faith and fair dealing that bars a party from arbitrarily depriving the other of the benefit of the bargain.
Quantifying the unpaid earn-out
Proving an earn-out claim is a forensic-accounting exercise married to a but-for analysis. I rebuild the performance metric the way the agreement defines it, strip out the charges or policy changes that shouldn’t be there, and calculate what the metric would have been absent the buyer’s conduct. From there I derive the earn-out that should have been paid and subtract what actually was.
The operating-conduct cases pull in the same machinery I use for lost profits. To show what the business would have produced had the buyer not interfered, I’ll often build a but-for projection β using the company’s own pre-deal trajectory as the baseline (a before-and-after approach) or benchmarking against comparable operations the buyer didn’t touch. And these projections have to clear the reasonable certainty standard: the lost earn-out must be proven with evidence, not conjecture. The seller’s duty to mitigate can also enter the picture where the agreement or the law required reasonable efforts to protect the contingent payment.
Breach of a Financial Representation β and the Multiplier Effect
The largest post-acquisition claims usually aren’t about the true-up at all. They arise when the buyer alleges that a financial representation in the agreement was flat wrong β earnings were overstated, a liability was hidden, inventory was carried at a value it could never fetch β and that the buyer therefore overpaid.
The governing principle is benefit-of-the-bargain, also called expectancy damages: the buyer is entitled to be put in the position it would have occupied had the representation been true. The damages must be proven to a reasonable certainty, must trace causally to the breach, and can’t be speculative. A breach-of-representation claim generally doesn’t require proving the seller was at fault β only that the representation was false β and the agreement’s indemnification provisions typically supply the remedy.
Two ways to measure it
Out-of-pocket (dollar-for-dollar). When the breach is a one-time, non-recurring hit that doesn’t change the earnings power of the business, the damage is simply the dollar amount of the undisclosed cost. Suppose the seller failed to disclose a $3 million environmental cleanup obligation it knew about. That’s a $3 million liability the buyer inherited, it won’t recur, and it doesn’t alter the company’s ongoing profitability β so the price should come down by $3 million, dollar for dollar.
Benefit-of-the-bargain (multiple-adjusted). When the breach instead reveals that the earnings were overstated β that the recurring profit stream the buyer paid a multiple for was smaller than represented β the damage is the earnings shortfall multiplied by the deal’s valuation multiple. This is where the numbers get large, because the buyer didn’t pay one dollar for one dollar of earnings; it paid the multiple.
A hypothetical illustration
The following figures are hypothetical β invented to show the mechanics, not drawn from any actual case or client.
Imagine a buyer acquires a manufacturer for $48 million, a price set at 6.0 times the represented EBITDA of $8 million. After closing, a forensic analysis determines that the seller had under-reserved for obsolete inventory and prematurely recognized revenue on shipments that hadn’t truly transferred. Corrected to GAAP, the true recurring EBITDA at closing was $6.8 million β an overstatement of $1.2 million.
| Item | Amount |
|---|---|
| Represented EBITDA | $8.0 million |
| True (GAAP-corrected) EBITDA | $6.8 million |
| EBITDA overstatement | $1.2 million |
| Deal valuation multiple | 6.0x |
| Benefit-of-the-bargain damages | $7.2 million |
A $1.2 million accounting overstatement becomes a $7.2 million claim β because the buyer paid six dollars for every dollar of the earnings that turned out not to be there. The corrected price the buyer should have paid was roughly $40.8 million ($6.8 million times 6.0), against the $48 million it actually paid. That gap, $7.2 million, is the measure. This is the single most important reason buyers fight these cases hard: the multiplier turns a modest-looking error into a material recovery.
When I work a matter like this, the core forensic question is what the financials truly were at the closing date. I determine the corrected earnings, support each adjustment against the underlying records and the agreed accounting principles, and only then apply the multiple the parties actually used to set the price. The multiple isn’t my opinion of value pulled from the air β it’s the one embedded in the deal itself.
Caps, baskets, and materiality scrapes
A clean damages number is only the start, because indemnification clauses re-shape what’s actually recoverable. Three terms do most of the work:
- Baskets (deductibles or thresholds). The buyer often can’t recover until losses cross a floor. With a true deductible, only the excess above the floor is recoverable; with a “tipping” basket, crossing the floor unlocks the entire amount from the first dollar.
- Caps. Recovery is frequently ceilinged at a negotiated maximum β sometimes a slice of the price, sometimes the escrow held back at closing.
- Materiality scrapes. Many agreements direct that, when calculating damages, all the “materiality” and “material adverse effect” qualifiers sprinkled through the representations be read out β “scraped” β so that even individually small breaches count toward the loss.
Because these terms can convert a large gross figure into a much smaller net recovery β or occasionally the reverse β I model the damages both before and after the contractual limitations, and I watch for the double-recovery trap where the same dollar of harm gets claimed once through the working-capital true-up and again through indemnification. Coordinating with counsel on how these provisions operate is essential; the accounting answer and the contract answer have to line up.
Fraud Claims β A Higher Bar, Potentially Uncapped
When the evidence suggests the seller didn’t just get an estimate wrong but knowingly lied β concealed a liability it was fully aware of, or misrepresented results it knew were false β the buyer may plead fraud rather than (or alongside) breach of contract. Fraud is a tort, and it carries a heavier burden: the buyer generally has to prove the seller acted with knowledge or reckless disregard for the truth, not merely that a number was off.
The reason buyers reach for fraud is leverage. A fraud claim can blow past the contractual caps and baskets that would otherwise limit a breach claim, because courts are reluctant to let a wrongdoer hide behind risk-allocation clauses it secured through deception. Fraud can also open the door to rescission β unwinding the deal entirely β or to rescissory damages that approximate unwinding when a literal unwind isn’t practical. Integration clauses (which say the written agreement is the whole deal) and anti-reliance language can cut the other way, narrowing what extra-contractual statements a buyer is allowed to have relied on, which is why these claims are so fact-intensive.
From the forensic side, fraud and breach often rest on the same underlying analysis β I still have to prove what the true financial condition was at closing. What changes is the evidentiary weight on intent: documents, deposition testimony, and internal communications showing the seller knew the truth and chose to misrepresent it. Where a seller’s wrongful concealment let it pocket value it was never entitled to, a related remedy β disgorgement of the defendant’s gain β can also come into play.
How I Approach These Engagements
Whether I’m retained by a buyer, a seller, or sitting as the neutral accountant, the discipline is the same. I start with the agreement and the deal documents, because the contract defines the playing field β the accounting principles, the peg, the earn-out metric, the caps and baskets, the dispute path. I read the financial representations against what the records actually show. I rebuild the disputed numbers under the agreed standard, support every adjustment to a primary source, and only then translate the accounting difference into a damages figure using the deal’s own multiple where benefit-of-the-bargain applies. And I stay alert to the interplay between claims so the same harm isn’t counted twice. This work blends business valuation with forensic accounting, which is exactly the combination these disputes demand. You can read more about how I serve as an expert witness and litigation support professional in commercial matters like these.
FAQ
What is a post-acquisition dispute?
It’s a disagreement that surfaces after a business sale closes, usually over the final purchase price (a working-capital true-up), a contingent earn-out payment, or a financial representation the buyer says was false. These disputes are quantified by determining what the company’s numbers truly were at closing and measuring the gap against what the parties had agreed.
Why can a small accounting error lead to such large M&A damages?
Because buyers pay a multiple of earnings. If a company sells for six times EBITDA, every dollar of overstated EBITDA represents six dollars of overpaid price. So a benefit-of-the-bargain claim measures the earnings overstatement and multiplies it by the deal’s valuation multiple, which can turn a modest misstatement into a substantial recovery.
What’s the difference between a working-capital dispute and an indemnification claim?
A working-capital adjustment trues up the price for changes in the balance sheet around the closing date and is typically resolved by a neutral accountant under the agreement’s accounting rules. An indemnification claim alleges that a representation β about earnings, liabilities, or disclosures β was breached, and it’s measured either dollar-for-dollar or on a benefit-of-the-bargain (multiple-adjusted) basis. They can overlap, which raises the risk of double recovery that has to be managed carefully.
How are earn-out disputes proven?
I rebuild the earn-out metric exactly as the agreement defines it, remove any charges or accounting changes that shouldn’t reduce it, and calculate what the business would have achieved but for the buyer’s conduct. When the claim is that the buyer mismanaged the business to defeat the payment, the analysis borrows the same projection methods used in lost-profits work and must meet the reasonable-certainty standard.
What do caps, baskets, and materiality scrapes do to my recovery?
They reshape it. A basket sets a floor that losses must cross before anything is recoverable; a cap sets a ceiling on total recovery; a materiality scrape removes the “materiality” qualifiers from the representations so smaller breaches still count toward the loss. I calculate damages both gross and net of these contract terms so the parties see the realistic recoverable amount, not just the headline number.
How do I reach Joey Friedman about a post-acquisition or M&A damages matter?
You can reach me at 954-282-9615 to discuss a purchase-price, working-capital, earn-out, or representation-breach dispute. My forensic-accounting and business-valuation work is typically billed hourly, at approximately $400 per hour, the Florida market average, and I’m glad to talk through how the numbers in your matter would be approached before any engagement.
About the Author
Joey Friedman is a CPA, Accredited in Business Valuation (ABV), and forensic accountant who holds a Master of Accounting and a Master of International Business and is a member of the AICPA and the Association of Certified Fraud Examiners. He also holds a Florida real estate license. Beyond those credentials, he has personally owned and operated more than a dozen of his own businesses across industries including marketing, printing, transportation, restaurants, hospitality and entertainment, and event planning β so he evaluates a purchase-price, working-capital, or earn-out dispute with both a forensic accountant’s command of the closing numbers and an owner-operator’s first-hand experience of buying, building, and selling businesses.