The Wealth Elevator Syndication eCourse

The Working Capital Factor: Why It Can Make or Break Your M&A Deal

Working capital is one of those dry accounting topics that doesn’t get much love, but here’s the harsh truth: more deals have gone sideways because of this one financial metric than just about anything else. 

Ignore it, and you could be walking into a financial trap that turns a seemingly great acquisition into an unexpected capital drain with lower cash flow and unexpected obligations. Get it right, and you’ll set yourself up for a smooth transition with strong financial health and no hidden funding gaps.

What Is Working Capital, Really?

Let’s strip away the jargon.

At its core, the working capital calculation is as follows:

Working Capital = Companys Current Assets – Current Liabilities

In plain English, it’s the cash, inventory, and accounts receivable (money owed to you) minus accounts payable (money you owe) and other short-term expenses.

As a working capital example, think of it as the gas tank of the business:

1. Too little? The business sputters and stalls, lowering its short term financial health before the next revenue cycle. The company may not meet all of its financial obligations.
2. Too much? You’ve got excess liquid assets sitting idle when they could be put to work improving operational efficiency, earning returns on other possible growth opportunities. 

Why is Working Capital Important? How Can it Swing the Deal Value?

The purchase price in an M&A deal is rarely the final price. After the financial statements are reviewed, adjustments almost always happen based on the business’s working capital at closing.

For Acquirers: Don’t Get Stuck With a Gasless Car

When you buy a business, you expect it to continue running without having to inject a bunch of extra cash into the current asset right away.

Imagine closing a deal on the last day of the month—right after the seller has collected all the receivables and cash inflows but before they’ve paid vendors. Boom. The seller walks away with all the positive cash flow, and you’re left with a stack of unpaid bills and financial obligations.

This is why you can’t just ignore a companys working capital in a deal. If you don’t structure it properly, you could end up buying a business without sufficient working capital, and you may need to take on a working capital loan.

Key red flags to watch for during due diligence:

1. Unexplained monthly swings in gross working capital (Is it normal, or is the seller dressing things up for the sale?)
2. Sudden “improvements” in working capital leading up to the deal (Are they slowing payments to vendors to reduce expenses and make things look better?)
3. Aggressive changes in receivables collection (Are they forcing collections ahead of schedule to artificially inflate cash inflows to create positive working capital?)

For Sellers: Know How The Adjustment in Working Capital Management Works

One of the biggest shocks to first-time sellers is how working capital calculation adjustments hit in two phases:

1️⃣ At Closing: You provide an estimated working capital balance before closing, and the buyer adjusts their payment terms based on that estimate.

2️⃣ Post-Closing True-Up (60-90 Days Later): The buyer then calculates the actual working capital at closing. If it’s lower than the target, they claw back the difference. If it’s higher, you get a check.

Here’s why working capital management matters: You’re not actually done when the deal closes—you’ll have 2-3 months of back-and-forth with real money on the line.

How to prepare:

✔ Clean up your working capital measures beforehand—collect overdue invoices, clear obsolete inventory, and tighten up your balance sheet.

✔ But don’t get cute—delaying vendor payments or forcing collections can backfire if buyers catch it in the financial statements during due diligence.

✔ Negotiate a fair measurement period—if you let the buyer pick, they’ll push for months where working capital was inflated.

The reality? Buyers will try to push the working capital target higher so they get more cash in the deal, and sellers will try to lower the target so they walk away with more. Knowing the game makes all the difference.

Where Things Get Messy

1️⃣ The Measurement Period

What defines a good working capital ratio?

1. 12-month average? 6-month average?
2. Are seasonal swings factored in?

Buyers will want to include high-inventory months (raising the target). Sellers will want to use leaner months (lowering the target).

In seasonal businesses, the closing date becomes a weapon.

1. Buyers: Prefer closing when inventory is low but set a working capital target based on a full-year average.
2. Sellers: Prefer closing when inventory is high or negotiating separate seasonal adjustments.

2️⃣ Questionable Accounting Practices Exposed

Buyers usually won’t count slow-moving inventory, uncollectible receivables, or other “questionable” assets at full value—which can lead to fights post-closing.

How the Working Capital Mechanism Works

Here’s the typical structure of a working capital adjustment:

1️⃣ Set a “normal” working capital target—this is usually an average over the past 12 months (or seasonally adjusted).

2️⃣ Compare the target to the actual working capital at closing.

3️⃣ Adjust the purchase price based on the difference:

1. Too little working capital? The seller owes the buyer.
2. Too much working capital? The buyer owes the seller.

Simple in theory, but the details are where the battles happen.

How to Win the Working Capital Battle

For Buyers:

✅ Analyze at least 24 months of working capital—look for patterns, fluctuations, and seasonality.

✅ Scrutinize inventory & receivables valuation—just because it’s on the books doesn’t mean it’s actually worth full price.

✅ Set a collar (e.g., ±10%)—this eliminates fights over small fluctuations.

✅ Be strategic about closing date—if possible, close when working capital is typically lower.

For Sellers:

✅ Clean house before the sale—collect old receivables, write off bad debts, and sell obsolete inventory.

✅ Negotiate a fair measurement period—don’t let buyers cherry-pick high-working-capital months.

✅ Maintain normal operations—delaying payments to vendors just before the sale destroys trust and invites disputes.

✅ Consider a fixed working capital amount—in some deals, both sides agree on a fixed number to avoid the hassle altogether.

Bottom Line: Don’t Let Working Capital Surprise You

Working capital isn’t just an accounting number—it’s real cash that either stays in your pocket or goes to the other side.

On a $5M deal, a $500,000 working capital adjustment is a 10% swing in value. That’s the difference between a great exit and an unexpected hit.

Know the rules, set your strategy, and don’t let a working capital oversight ruin your deal.