Buy or Sell A Business
Business owner negotiating working capital terms

A working capital adjustment is a dollar-for-dollar true-up that raises or lowers the purchase price of a business based on how actual working capital at closing compares to a pre-negotiated target, called the peg. If closing working capital comes in above the peg, the seller collects more cash; if it lands below, the buyer gets a credit. It sounds mechanical, but it’s the single most common source of post-closing fights between buyers and sellers.

TL;DR:

  • Negotiating a higher working capital peg effectively reduces the seller’s net proceeds by the amount of increase, as the true-up adjusts the purchase price dollar-for-dollar at closing.
  • The peg is based on a normalized, historical average of net working capital over 12 to 24 months, adjusted for seasonal variations and one-time events.
  • Disputes often arise from vague agreement language, poorly calibrated pegs, or undocumented accounting changes, emphasizing the need for detailed exhibits and specific accounting principles.
  • Sellers should rigorously prepare by maintaining monthly net working capital schedules, documenting normalization reasons, and modeling sensitivity scenarios before negotiations.
  • Structuring the true-up mechanism with collars, caps, or one-way adjustments can shift risk, but deal-specific sizing is crucial for fairness and efficiency.
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Table of Contents

What Is a Working Capital Adjustment and Why Does It Matter?

The purpose is simple: make sure the business shows up on day one with enough operating liquidity to run itself, without the buyer having to inject cash the moment the ink dries. Most sale agreements exclude cash and funded debt from the calculation, since those get settled separately through the purchase price and debt payoff. What’s left is the operating engine of the balance sheet.

Net working capital typically includes:

  • Accounts receivable, net of an allowance for doubtful accounts
  • Inventory, valued consistently with historical practice
  • Prepaid expenses
  • Trade accounts payable
  • Accrued liabilities (payroll, taxes, commissions)
  • Deferred revenue

Here’s the part sellers often miss: negotiating a higher peg is economically identical to accepting a lower headline price. If the peg goes up by $200,000, the seller effectively hands back $200,000 in value before the true-up even happens, according to Kroll’s analysis of working capital in M&A transactions. Buyers and sellers both need to treat the peg negotiation with similar seriousness to the enterprise value number, because it reflects important deal economics.

How the Working Capital Peg Gets Calculated

The peg isn’t arbitrary. It’s usually built from a trailing period over several months of historical net working capital, then adjusted so it reflects a normal operating month rather than an unusual one.

  1. Pull the trailing data. Advisors calculate monthly NWC over the lookback window and decide whether a median or an average better represents the business, especially if one month was skewed by a large collection or a seasonal inventory buildup.
  2. Normalize for one-offs. Strip out anything that doesn’t reflect ongoing operations: a one-time litigation settlement sitting in accruals, a delayed customer payment that inflated receivables, or a bulk inventory purchase tied to a promotion that won’t repeat.
  3. Set the peg and lock the accounting policies. Both sides agree on the target number and, critically, the accounting methodology used to calculate it going forward.
  4. Estimate at closing. The seller typically prepares an estimated closing statement, and the purchase price adjusts at close based on that estimate.
  5. True up after closing. The buyer prepares a final closing statement using real numbers, and the difference between actual and peg gets settled dollar-for-dollar.

A quick example makes this concrete. Say the peg is set at $1.2 million. The buyer’s final closing statement shows actual net working capital of $1.35 million. The seller receives an additional $150,000. Flip it: if actual working capital comes in at $1.05 million, the buyer is owed $150,000 back, usually from an escrow or holdback set aside for exactly this purpose. Same mechanism, opposite direction, and both parties should model both outcomes before they ever sign the letter of intent.

Collars, Caps, and One-Way Adjustments: The Variants You’ll See

Not every deal uses a straight dollar-for-dollar true-up with no limits. Several structural variants show up regularly, and each shifts risk differently:

  • Collars create a dead zone around the peg. If actual working capital falls within, say, plus or minus $50,000 of the target, no adjustment happens at all. Outside that band, the full dollar-for-dollar mechanism kicks in.
  • De minimis thresholds work similarly but are usually framed as a floor below which small discrepancies simply aren’t worth litigating. This keeps both sides from burning advisor fees over a $4,000 rounding difference.
  • Caps limit the maximum adjustment in either direction, which buyers tend to resist since it limits their downside protection.
  • One-way adjustments only trigger if working capital falls below the peg, with no upside payment if it comes in high. Sellers sometimes accept this in competitive auctions to make their bid look cleaner, trading potential upside for a faster close.

Each of these terms should be sized to the deal’s actual economics, not copied from a template.

Post-Closing Timeline: Estimate, Objection, and Final True-Up

The estimated closing statement sets the wire amount on closing day, but that number is provisional. The real settlement happens over the following weeks and months, and the calendar matters as much as the math.

  1. Closing day. The seller delivers an estimated closing statement, and the purchase price is adjusted based on that estimate before funds move.
  2. Buyer prepares the final statement. Buyers typically have between two and four months post-closing to deliver a final closing statement showing actual working capital, according to Lincoln International’s guidance on mitigating M&A disputes.
  3. Seller reviews and objects. Sellers usually get a few weeks up to two months objection window. An objection notice needs to specify the disputed line items and dollar amounts, not just a general complaint, because vague objections can waive the right to raise them later.
  4. Direct negotiation. Most disputes resolve here, once both sides put workpapers on the table.
  5. Neutral accountant, if needed. If the parties can’t agree, an independent accountant steps in as an expert, not an arbitrator. That distinction matters: the accountant’s job is limited to resolving the specific disputed items under the contract’s accounting rules, and the engagement agreement typically splits the cost based on who’s closer to the final number.

The estimated wire at closing is not the finish line. It’s a placeholder, and both sides need to keep tracking the account until the true-up actually settles.

Where Working Capital Disputes Actually Come From

Most fights don’t start with dishonesty. They start with ambiguity written into the purchase agreement months earlier.

  • Vague “past practice” language. If the agreement says working capital should be calculated “consistent with past practice” without defining what that practice actually is, both sides can plausibly claim they’re right.
  • A poorly calibrated peg. A 6-month lookback during a seasonal low, or a peg that never got scrubbed for a one-time inventory writedown, sets up a mismatch that surfaces the moment real numbers come in.
  • Undocumented accounting changes. If the seller quietly tightened AR reserve policy or changed inventory costing methods right before the sale, the buyer’s final statement can look wildly different from what was modeled during diligence.
  • A dispute-resolution clause with no real boundaries. When the agreement doesn’t specify what accounting rules govern, a neutral accountant can end up importing GAAP treatment the parties never actually agreed to, according to Montague Law’s analysis of neutral accountant tie-breakers.

Vague accounting references and imprecise language are cited repeatedly as the root cause of post-closing disputes, according to Thompson Coburn’s review of common working capital pitfalls.

Pro Tip: If your purchase agreement uses the phrase “consistent with historical practice” without an exhibit showing exactly what that practice is, line by line, treat that as an unfinished contract, not a finished one.

From vague practice to defined working capital exhibit

Negotiating and Stress-Testing the Peg Before You Sign

The peg negotiation is where most of the real leverage in a deal actually lives, and it happens well before the closing statement gets prepared.

  1. Pull 12 to 24 months of monthly NWC. Build the full dataset before arguing about a number. Comparing a 12-month lookback against a 24-month lookback often reveals how much a single seasonal quarter is skewing the shorter window.
  2. Run sensitivity scenarios. Model how a $50,000 or $100,000 shift in the peg changes actual proceeds at three or four plausible closing dates.
  3. Document every one-off, on both sides. If the seller strips out a one-time expense, the buyer should insist on the same treatment for any one-time revenue spike. Symmetry protects both parties.
  4. Lock the valuation basis for judgment accounts. AR reserve methodology, inventory costing, and deferred revenue recognition all involve judgment calls that need to be agreed in writing, not left to “past practice.”
  5. Size the collar, de minimis, and cap to the deal. A $50,000 collar makes sense on an $8 million deal and looks absurd on an $800,000 one.

Sellers who build monthly NWC schedules covering 12 to 24 months and document one-time events consistently negotiate more favorable pegs and run into far less post-closing friction, according to Beancount’s research on working capital pegs and true-ups. Stress-testing the peg against both a 12-month and a 24-month lookback, and sharing that analysis with the other side, is treated as a mark of good-faith negotiation rather than gamesmanship in that same research.

Drafting Checklist: Specified Accounting Principles and Accountant Scope

A working capital adjustment is only as good as the exhibit that defines it. This is the checklist worth insisting on before signature:

  1. Write a Specified Accounting Principles exhibit at the line-item level. General references to GAAP aren’t enough; the exhibit should spell out exactly how AR reserves, inventory, and deferred revenue get calculated.
  2. Add an express rank-order clause. State plainly that the exhibit controls in the event of a conflict, and that GAAP applies only where the exhibit is silent.
  3. Narrow the independent accountant’s mandate. Limit their authority to the specific disputed line items named in the objection notice, not a broad re-audit of the whole closing statement.
  4. Set firm timelines and cost allocation. Specify how long the accountant has to rule and how fees get split, typically based on which party’s position prevails.

Line-item specificity in the accounting exhibit is widely considered the single most protective drafting move available to sellers with nonstandard accounting habits, and courts tend to defer to whatever scope language the contract actually contains. Leave the accountant’s authority undefined, and you’ve left the door open for that authority to expand.

How Captyx Sees Sellers Actually Prepare for This

Working capital surprises rarely come from bad faith. They come from sellers who never built a monthly NWC schedule until a buyer asked for one during diligence, at which point it’s too late to fix anything. Some M&A advisory firms standardize monthly NWC tracking during sell-side readiness work and run scenario modeling against different lookback windows before a business goes to market, because that modeling helps determine whether the eventual peg negotiation is friendly or hostile.

The pattern holds across deal sizes. In some engagements, sellers who had clean monthly closes and documented inventory counts moved through the true-up process with materially less back-and-forth than sellers arriving with a single annual snapshot.

A buyer can’t dispute a number the seller has already shown, month by month, for two years running.

Seller checklist: monthly close discipline, verified AR aging, regular inventory counts, and written documentation for every normalization. Buyer checklist: request monthly trial balances early, and bring in advisors to model the peg before signing, not after.

  • Monthly close discipline beats a year-end scramble
  • AR aging should be reconciled, not estimated
  • Physical inventory counts need a paper trail
  • Every normalization needs a written rationale

Balancing Deal Certainty and Fairness

Working capital adjustments punish vagueness more than any other clause in a purchase agreement. The math is simple; the ambiguity is what causes six-figure surprises. Sellers sometimes trade a slightly higher peg for a faster, more certain close, and that can be a reasonable bet if the number is well-documented rather than guessed at. My one recommendation, if you take nothing else from this: build monthly NWC discipline covering at least the trailing 12 months before you ever discuss a peg with the other side.

— Tucker

How Captyx Prepares Sellers for the Working Capital Conversation

Modeling a peg after a letter of intent is signed is too late. Some advisors build working capital readiness into the front end of the process: valuation, financial cleanup, monthly NWC scheduling, and negotiation support once a buyer starts pushing on the closing statement.

Captyx

If you’re planning to sell in the next 12 to 24 months, the highest-leverage move available to you right now is getting your working capital picture organized before a buyer sees it first. Captyx’s sell-side due diligence process walks through exactly this, and pairs with financial records cleanup work so your monthly NWC schedule holds up under buyer scrutiny instead of becoming a liability during negotiation. Start with a free business valuation estimate to see where your numbers stand today, and where a poorly calibrated peg could cost you at closing.

Sources

FAQ

What are working capital adjustments?

They are dollar-for-dollar adjustments to a business’s purchase price, applied after closing, based on whether actual net working capital came in above or below the negotiated peg.

Is higher or lower net working capital better?

Neither is inherently better. What matters is whether actual working capital at closing matches the peg; coming in above it benefits the seller, and coming in below it benefits the buyer through a purchase price credit.

How do you calculate a working capital adjustment?

Subtract the negotiated peg from actual closing working capital as shown on the final closing statement; a positive difference is paid to the seller, and a negative difference is credited to the buyer.

What is adjusted working capital?

It typically refers to net working capital calculated using the Specified Accounting Principles agreed in the purchase agreement, after normalizing for one-time items and excluding cash and funded debt.

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