The working-capital peg, explained.
The silent purchase-price reducer most sellers don't see coming.
At close, the buyer normalizes net working capital to a target — the “peg.” If working capital at close is below the peg, your purchase price is reduced dollar for dollar. The peg calculation, the delivery requirement, and the negotiation dynamics around it are all buyer-favored unless the seller engages with them actively. Most sellers don't realize this is a moving line until it has already moved against them.
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What the working-capital peg actually is.
When a business is sold, the purchase price is conceptually for the business operating with a “normal” level of working capital. Working capital is what keeps the operating business running between close and the next operating cycle: receivables coming in, payables going out, inventory carrying. The buyer doesn't pay extra for working capital — they assume a normal level is delivered with the business. The peg is the definition of normal.
In practice the peg is a target balance, expressed as net working capital (current assets minus current liabilities, with specific inclusions and exclusions defined in the purchase agreement). The seller is required to deliver the business at close with working capital at or above the peg. If actual working capital at close is below the peg, the purchase price reduces dollar for dollar by the shortfall. If it's above the peg, in many deals the buyer keeps the excess — though this is negotiable and varies by purchase-agreement structure.
The mechanic is simple. The economics — for the unprepared seller — are not. A business that runs naturally below its peg at year-end, or whose owner has been pulling cash aggressively in the months before close, or that has seasonal patterns that aren't accounted for in how the peg is calculated, can give up meaningful purchase price without ever seeing it coming. The buyer always runs the calculation. The seller almost never does, until it's too late.
The trailing-twelve-month average, and the buyer-favored defaults inside it.
The standard formula.
Most middle-market peg calculations use a trailing-twelve-month average of net working capital, taken from monthly balance sheets. The simple version: sum twelve monthly NWC values, divide by twelve, that's the peg. The seller delivers the business at close with NWC at or above that number. Below the peg reduces price.
What counts as working capital, and what doesn't.
The purchase agreement defines specific inclusions and exclusions. Standard inclusions: accounts receivable, inventory, prepaid expenses, accounts payable, accrued liabilities. Standard exclusions: cash and debt (which are handled separately as cash-free / debt-free adjustments), deferred revenue (often a contested category), tax-related accruals, customer deposits in some industries. Every inclusion the buyer adds tilts the peg toward a higher target the seller has to deliver; every exclusion does the opposite.
Where the buyer-favored defaults hide.
The treatment of deferred revenue. The treatment of accrued bonuses (especially year-end). The treatment of inventory reserves and write-downs. The handling of growth-period inventory build. Each of these is negotiated in the purchase agreement, and each carries real dollars. Sellers who treat the peg as a mechanical formula miss the fact that the definitions inside the formula are where the price actually gets set.
The seasonal trap.
A trailing-twelve-month average treats every month as equally representative. For a seasonal business, that's wrong — and the math punishes sellers who close in the wrong month.
Consider a business with a seasonal working-capital cycle: inventory builds in spring, sells through summer and fall, leaves the year-end balance sheet at a seasonal low. The trailing-twelve-month average smooths these into a single peg. But the actual NWC the business runs with is dramatically different in March than in December.
If close lands in December — when working capital is at a natural low — the seller delivers below the peg and pays the shortfall. The buyer hasn't taken anything; the business is operating exactly as it always has. But the formula treats the December reality as a delivery shortfall, and the price reduces accordingly.
Sellers in seasonal businesses have to engage with this directly. Some negotiate a seasonal peg — a different target depending on the month of close. Some negotiate inclusions and exclusions that smooth the seasonal pattern. Some time the close to a month where natural working capital aligns with the peg. None of these happen by accident; they happen because the seller understood the calculation before the term sheet was signed.
The peg is set by what you've already done. Manage to it before you're managing through it.
Monthly NWC, computed consistently.
The single most useful thing a seller can do in the eighteen months before close is compute monthly net working capital on the same definition the buyer will use. AR + inventory + prepaids minus AP minus accrued liabilities. Each month. Same categories. Track the trend. Know what your peg will look like before the buyer calculates it.
AR aging and collection discipline.
AR that sits past terms commonly gets discounted in the peg calculation. A growing percentage of receivables aged over 90 days reduces the working capital the buyer credits. Tightening collections in the year before close is a direct purchase-price preservation move.
Inventory levels and obsolescence reserves.
Inventory carried at cost on the books may be valued lower in the buyer's peg if it's slow-moving, obsolete, or otherwise impaired. Sellers who clean up inventory in the year before sale — writing down genuine obsolescence, moving aged stock, tightening turns — protect the working capital they're actually delivering.
Cash extraction patterns.
Owners who pull cash aggressively in the months before close — through distributions, owner draws, or accelerated payables — can reduce the working capital they deliver below what the historical average would imply. The peg is built on trailing twelve months; close-period behavior that diverges from that pattern surfaces as a shortfall. Sellers who maintain normal operating discipline in the close period preserve the delivered working capital.
Deferred revenue and customer prepayments.
In subscription, service-contract, or prepayment-heavy businesses, deferred revenue is a major peg-calculation variable. Whether it's included in the peg, how it's valued, and whether changes in deferred-revenue balance during the close period count toward delivery — all are negotiable terms with real-dollar consequences. Sellers who track deferred revenue carefully in the year before sale walk into those negotiations with data, not vibes.
Negotiating the peg.
The peg is settled in the purchase agreement, not at close. The terms locked in during the LOI and PSA negotiation determine where the leverage sits when the close-date calculation runs.
The averaging period.
Twelve months is standard, but not universal. Some sellers negotiate a six-month or three-month trailing average — useful when the most recent operating discipline has been stronger than the older history. Some businesses end up with multi-period weighted averages. The right period depends on the business's pattern; the seller's job is to argue for the period that fairly represents the business they're actually selling.
The inclusions and exclusions.
Every account that goes into the calculation is negotiable. Deferred revenue is the most consequential — its treatment can move the peg by meaningful amounts in subscription or service-contract businesses. Accrued bonuses, customer deposits, prepaid revenue, restructuring reserves, environmental accruals, and tax-related items all merit category-by-category review. Sellers who don't engage here accept the buyer's preferred definitions by default.
The upside treatment.
Standard purchase agreements give the buyer the benefit of any working capital delivered above the peg. Sellers who negotiate hard sometimes preserve a portion — or a dollar-for-dollar credit upward — when above-peg working capital is delivered. The downside almost always sits with the seller; the upside being asymmetric is a buyer-favored default that's worth challenging.
The dispute mechanism.
The purchase agreement defines what happens when the buyer and seller disagree on the close-date NWC calculation. Most agreements call for a neutral accounting firm to settle disputes — but the cost allocation of that arbitration, the scope of what can be disputed, and the timing of when disputes must be raised are all negotiable. Sellers without disciplined dispute mechanics end up swallowing close-date adjustments they would have successfully contested under tighter terms.
How peg fights extend timelines and reduce price even when the deal closes.
The close-date NWC schedule. Within thirty to ninety days post-close, the buyer's accounting team produces a calculated close-date NWC. The seller has a short window to dispute. Disputes that don't get raised inside that window are waived. Sellers without disciplined close-date accounting often discover line items that should have been challenged only after the dispute window has closed.
AR collectibility post-close. Accounts receivable counted toward the peg that don't collect within a defined post-close period frequently get clawed back from escrow. Sellers without a clear collections trail end up paying for receivables the buyer couldn't collect — even when the receivables were legitimately delivered at the close-date balance.
Inventory write-downs in the buyer's post-close audit. Inventory counted at cost on the close-date NWC may get written down by the buyer's post-close audit. Sellers who haven't already documented their inventory valuation methodology and obsolescence reserves end up arguing about it months after close — with the buyer holding the inventory and the seller holding only the dispute right.
Deferred revenue rollforward. In subscription businesses, the rollforward of deferred revenue from close date through the post-close measurement period is a frequent source of dispute. Sellers who haven't mapped this carefully into the purchase agreement end up renegotiating mechanics on the fly — which the buyer wins, since they hold the cash and the timeline.
How to walk in with peg leverage.
Compute your peg before the buyer does. Eighteen months of monthly NWC data, computed consistently, smoothed and seasonalized. Know what your peg will be before it's a negotiating term. Sellers who arrive at the LOI conversation with their own peg model anchor the discussion; sellers who arrive blind accept whatever the buyer presents.
Tighten the operating cycle in the year before sale. Collections discipline. Inventory turns. Aged AR cleanup. Accrued liability hygiene. Every dollar of working capital efficiency in the year before sale shows up in a higher peg with healthier accounts — and a healthier delivered position at close.
Engage the peg definitions in the LOI, not at close. The averaging period, the inclusions, the exclusions, the upside treatment, the dispute mechanism — all are negotiable, and all are settled before the buyer locks in. Pushing back on the peg structure when it's a numbers conversation is much cheaper than pushing back when it's a real-dollar adjustment to your wire.
Document the close-period operating discipline. In the months leading up to close, the buyer is watching the working-capital trend. Normal operating behavior — collections at usual pace, payments at usual pace, inventory at usual levels — is the seller's posture. Aggressive cash extraction, abnormal payable extension, or unusual inventory drawdowns all surface as close-period anomalies that get adjusted out of the delivered working capital.
Run a model of the close-date NWC two weeks before close, not the day of. The seller who only sees the calculation after the buyer's team has produced it has lost the timing leverage. The seller who has a competing close-date model in hand can negotiate from a position of data parity.
What sellers most often ask before they go to market.
- What is a working-capital peg?
- A working-capital peg is the target level of net working capital the seller agrees to deliver at close. If actual working capital at close exceeds the peg, the seller is paid the excess. If it falls below, the purchase price is reduced by the shortfall. The peg is a true-up mechanism that protects the buyer's underwriting assumptions about the operating company they're acquiring.
- How is the working-capital peg calculated?
- Typically as the trailing average of monthly net working capital over a defined period — twelve months is common, eighteen for seasonal businesses. The averaging period, the specific accounts included and excluded (deferred revenue, accrued bonuses, customer deposits, inventory reserves), and the treatment of seasonality all change the dollar amount of the peg and are negotiated in the LOI through the peg definition language.
- Why is the working-capital peg negotiated?
- Because small changes to the methodology can move the peg by meaningful dollar amounts. The averaging period, the accounts in and out, the seasonality treatment, and the symmetry of upside-vs-downside all materially affect the seller's wire at close. The peg dollar amount commonly comes later in the diligence cycle, but the definitions that determine it are set in the LOI.
- What happens if working capital at close exceeds the peg?
- In a symmetric peg, the seller is paid the excess at close — the buyer wires more dollars to the seller because they received more working capital than the underwriting assumed. In an asymmetric (buyer-favored) peg, the seller does not receive the excess; the buyer keeps it. Negotiating symmetry is one of the most consequential things a seller can do in the LOI conversation.
- Can seasonality affect the working-capital peg?
- Substantially. A seasonal business closing at a low point in its working-capital cycle can owe the buyer a large shortfall under a trailing-average peg, even though nothing is wrong with the business. A seasonal business closing at a high point can deliver a large excess. The peg methodology must account for seasonality explicitly — through the averaging period, the close-date adjustment, or both — or the true-up becomes a function of timing rather than a function of the business.
Self-Assessment tells you what might break. Gap Review proves whether the documents support the same story.
See how your operating discipline reads against the buyer's instrument.
The Self-Assessment grades your business against the ten-axis standard institutional capital actually applies. Reporting Maturity, Financial Consistency, KPI Completeness — the axes that drive how cleanly your working capital is going to read at close — are all in it. Read your real position on your timeline, not theirs.