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Net Working Capital Peg in M&A: How the Target Is Set, the True-Up, Disputes

By The Ledgerism Editorial Team · The Ledgerism Brief Editorial Team produces original, methodology-disclosed accounting and tax research—data trackers, databases, and reference guides built to be the most-cited source in the field. Every figure is verified against primary sources including FASB, the IRS, the PCAOB, NASBA, the AICPA, and state boards of accountancy.

The net working capital peg is the single most fought-over number in a private-company sale, and most owners never see it coming until the post-close true-up arrives. It sets the normalized level of working capital a buyer expects the business to carry on the day the deal closes. Get the peg wrong by a few hundred thousand dollars and the purchase price moves dollar-for-dollar against you.

What is the net working capital peg?

The net working capital peg, sometimes called the working capital target or the working capital benchmark, is a dollar figure written into the purchase agreement that represents the normalized amount of net working capital the buyer expects the acquired business to deliver at closing. Net working capital itself is a familiar accounting measure: current assets minus current liabilities. In an M&A context, though, the definition is custom-built. The parties negotiate exactly which line items count.

The logic is simple. A buyer pricing a business off a multiple of EBITDA is paying for a going concern that can keep operating the morning after closing. A going concern needs a certain amount of accounts receivable, inventory, and prepaid expenses to fund operations, net of the accounts payable and accrued liabilities it owes. If the seller strips out that operating capital before closing, by collecting receivables early, delaying payables, or running down inventory, the buyer would have to inject fresh cash on day one. The peg stops that from happening.

Because most middle-market deals are structured on a cash-free, debt-free basis, the seller keeps the cash on the balance sheet and pays off the funded debt at closing. That is why cash and interest-bearing debt are almost always carved out of the working capital definition. What remains is the operating working capital: receivables, inventory, prepaids, payables, accrued expenses, and deferred revenue, subject to negotiation.

A clean quality of earnings report is usually where the working capital analysis begins, because the same diligence that normalizes EBITDA also builds the trailing working capital trend the peg is set from.

It helps to separate two related ideas. Net working capital in the ordinary accounting sense is a snapshot measure of liquidity. The working capital peg is a contractual construct: a number the parties agree to treat as “normal” so that any deviation from it changes the price. The peg is not necessarily the latest balance sheet figure, nor the figure a CFO would quote for a credit application. It is a negotiated baseline, and its components are defined by the four corners of the purchase agreement rather than by GAAP alone. That distinction is why two competent accountants can compute very different working capital numbers for the same business depending on which definition they apply.

Why the net working capital peg matters in M&A

The peg matters because it is a dollar-for-dollar adjustment to the purchase price. Unlike EBITDA multiples, which are negotiated once and locked, the working capital adjustment is a live mechanism that can move real money in either direction after the deal closes. On a deal where the purchase price is set at a fixed enterprise value, the working capital adjustment is one of the few levers that keeps changing the cash the seller actually receives.

Consider the asymmetry of incentives. A seller wants the peg set low, because a low peg means actual working capital is more likely to exceed it and trigger a payment to the seller. A buyer wants the peg set high, because a high peg makes a shortfall, and a refund from the seller, more likely. That tension is why the peg is negotiated line by line and why the trailing twelve-month average is the common compromise: it reflects a full seasonal cycle rather than a single cherry-picked month.

The stakes are real. The American Bar Association’s Private Target Mergers and Acquisitions Deal Points Study consistently reports that a purchase price adjustment based on net working capital appears in the large majority of private-target deals. SRS Acquiom, which administers escrows and purchase price adjustments on thousands of private-company deals, has reported that purchase price adjustment disputes are among the most frequent post-closing disputes buyers and sellers face. When EBITDA-driven enterprise value is fixed, the working capital mechanism becomes the battleground.

How the net working capital peg works (mechanics)

The mechanism runs in two stages: setting the peg before signing, and the true-up after closing.

Setting the peg. The parties agree on a working capital definition, then pull the monthly working capital balances for the trailing twelve months. They average those balances to arrive at the peg. The trailing average matters because working capital swings with seasonality. A landscaping company carries different working capital in March than in November; a retailer balloons inventory before the holidays. A single month would distort the target, so the twelve-month average normalizes it.

The estimated closing statement. A few days before closing, the seller prepares an estimated closing balance sheet and computes estimated net working capital. The purchase price paid at closing is adjusted up or down by the difference between estimated working capital and the peg. If estimated working capital is above the peg, the buyer pays more at closing; if below, the buyer pays less.

The true-up. After closing, the buyer prepares the final closing balance sheet, usually within 60 to 90 days, and computes actual net working capital. The difference between actual working capital and the estimate is settled in cash. If actual is higher than the estimate, the buyer pays the seller the shortfall; if lower, the seller refunds the buyer. Many deals fund a separate working capital escrow specifically to backstop this true-up payment.

Collar and dispute resolution. Some agreements include a collar, a dead band around the peg within which no adjustment is made, to avoid fighting over small variances. If the parties cannot agree on the final calculation, the agreement typically routes the dispute to an independent accounting firm acting as an expert, not an arbitrator, whose determination on the disputed line items is binding.

One subtlety drives a great deal of negotiation: which party prepares the closing statement. Whoever holds the pen has a structural advantage, because the other side must then object, document, and prove its position. In most deals the buyer prepares the final closing statement, having taken control of the books, and the seller is given a review window (often 30 to 45 days) and access to the records used to compute the number. The agreement should grant the seller specific rights to the buyer’s work papers and supporting detail; without that access, a seller cannot meaningfully challenge a calculation it did not produce.

The items the parties choose to include or exclude define the whole exercise. A typical working capital definition includes trade accounts receivable, inventory, and prepaid expenses on the asset side, and trade accounts payable and accrued operating liabilities on the liability side. It typically excludes cash, funded debt, income tax assets and liabilities, deferred tax accounts, and intercompany balances. Gray-area items, such as deferred revenue, customer deposits, accrued transaction bonuses, and the current portion of long-term debt, are negotiated explicitly because each one can swing the number. The cleanest agreements attach a sample working capital statement as an exhibit, showing exactly which general-ledger accounts roll into each line, so the closing calculation is a mechanical application rather than a fresh argument.

Peg-setting methods compared

Buyers and sellers choose among several approaches to building the peg. Each shifts risk differently.

Worked example

Assume a manufacturing business is sold for an enterprise value of $30 million, cash-free and debt-free. The parties agree the working capital definition is accounts receivable plus inventory plus prepaid expenses, minus accounts payable minus accrued liabilities.

Pulling the trailing twelve months of monthly balances, the average net working capital comes to $4.0 million. That becomes the peg.

At closing: the seller’s estimated closing balance sheet shows net working capital of $4.3 million, which is $300,000 above the peg. The buyer therefore pays $30.3 million at closing rather than $30.0 million. The seller is being compensated for leaving $300,000 of extra operating capital in the business.

At true-up (75 days later): the buyer finalizes the closing balance sheet and determines actual net working capital was $4.15 million, not the $4.3 million the seller estimated. Actual came in $150,000 below the estimate. The seller must refund the buyer $150,000, settling the difference between estimate and actual.

Net result: the buyer paid $30.3 million at closing and received $150,000 back, for a net of $30.15 million. That equals the $30.0 million enterprise value plus $150,000, which is the amount by which actual working capital ($4.15 million) exceeded the $4.0 million peg. The mechanism delivered exactly what it promised: the buyer paid for the working capital actually delivered, no more and no less.

Now flip the example to see the downside. Suppose actual working capital at closing had been $3.7 million instead of $4.15 million. That is $300,000 below the $4.0 million peg. The seller, who collected $30.3 million at closing on an estimate of $4.3 million, would owe the buyer the full gap between the estimate and the lower actual: $4.3 million minus $3.7 million, or $600,000. The seller’s net proceeds would fall to $29.7 million, which is the $30.0 million enterprise value less the $300,000 working capital shortfall. A seller who runs down receivables or inventory to take extra cash off the table before closing simply gives it back, with interest in the form of dispute costs, at the true-up. This is the discipline the peg imposes: there is no way to game the closing balance sheet for a permanent gain, because every dollar moved is reconciled against the target.

The accounting treatment

The working capital adjustment is, at its core, an application of the purchase agreement’s defined accounting principles to the closing balance sheet. A central drafting question is which accounting standard governs the calculation. Agreements typically require the closing working capital to be computed in accordance with GAAP applied on a basis consistent with the target’s historical practices. That consistency requirement is deliberate: it stops a buyer from re-characterizing reserves under GAAP to manufacture a downward adjustment.

Where the closing statement is part of a business combination, the buyer also accounts for the acquisition under ASC 805, Business Combinations, recognizing the acquired assets and assumed liabilities at fair value as of the acquisition date. The working capital true-up itself is generally treated as an adjustment to the consideration transferred rather than as a separate gain or loss, provided it settles a pre-existing contractual mechanism rather than a contingency tied to future performance. Contingent purchase price tied to post-close results is a different animal entirely, accounted for as contingent consideration under ASC 805.

The recurring accounting fights involve reserves and accruals: allowance for doubtful accounts, inventory obsolescence reserves, warranty accruals, and accrued bonuses. Because these are estimates, a buyer applying a more conservative reserve under GAAP can lower closing working capital and trigger a refund. Sellers protect themselves by specifying that reserve methodologies must be consistent with past practice, and by attaching a sample working capital calculation as a schedule to the agreement so both sides know exactly how each line is computed. The same normalization discipline that drives EBITDA adjustments applies here.

Common disputes and pitfalls

• GAAP versus consistency conflicts. When the closing statement must follow both GAAP and past practice, and past practice was not GAAP-compliant, the two requirements collide. Courts and accounting experts must decide which controls, and agreements should specify the hierarchy explicitly (a recurring theme in ABA Deal Points commentary).
• Reserve and accrual manipulation. Buyers booking larger allowances for doubtful accounts or inventory obsolescence on the closing balance sheet to push working capital below the peg. The defense is a sample calculation schedule and a consistency requirement.
• Seasonality gaming. Setting the peg from a non-representative period. A seller may push to close at a low point in the working capital cycle so actual working capital exceeds a stale peg. The trailing twelve-month average is the standard guard against this.
• Inclusion or exclusion ambiguity. Disputes over whether items like deferred revenue, current portion of long-term debt, accrued taxes, or accrued transaction expenses belong in working capital. Every such item should be named in the definition.
• The cash-free, debt-free overlap. Items that look like working capital but are economically debt, such as customer deposits or deferred revenue, can be double-counted if not carefully assigned to either the working capital bucket or the debt bucket.
• True-up timing and access. A buyer who controls the books post-close can slow-walk the closing statement or restrict the seller’s access to records, weakening the seller’s ability to challenge the calculation.
• No collar, endless fights. Without a dead band, both sides litigate trivial variances. A modest collar removes the incentive to argue over rounding-level differences.

Frequently asked questions

What is a net working capital peg in simple terms?

It is the agreed target amount of operating working capital, current assets minus current liabilities excluding cash and debt, that the buyer expects the business to have on the closing date. If actual working capital differs from the peg, the purchase price adjusts dollar-for-dollar.

How is the working capital peg calculated?

Most commonly as the average of monthly net working capital balances over the trailing twelve months, using a negotiated definition of which accounts count. The trailing average smooths out seasonal swings.

Why are cash and debt excluded from working capital?

Because middle-market deals are usually structured cash-free, debt-free, the seller keeps the cash and pays off funded debt at closing. Leaving cash and debt out of the working capital definition avoids double-counting them.

When does the working capital true-up happen?

Typically 60 to 90 days after closing, once the buyer finalizes the closing balance sheet and computes actual net working capital, which is then compared to the estimate used at closing.

Who pays if working capital is below the peg?

The seller refunds the buyer the shortfall. If working capital comes in above the peg, the buyer pays the seller the excess. The adjustment is dollar-for-dollar in both directions.

What happens if the parties disagree on the calculation?

The purchase agreement usually sends the disputed line items to an independent accounting firm acting as an expert. Its determination on those items is binding, which is faster and narrower than litigation.

Is the working capital peg the same as the escrow?

No. The peg is the target for the price adjustment. A separate working capital escrow may be funded specifically to backstop the true-up payment, but the indemnification escrow that secures breach-of-representation claims is a different account.

How big are working capital adjustments in practice?

They vary widely with deal size and seasonality, from immaterial on a stable business to seven figures on a working-capital-heavy distributor or manufacturer. The point is that the adjustment can move real money, which is why it is so heavily negotiated.