The most common financial surprise in M&A is not a hidden liability or a revenue overstatement. It is working capital.
A buyer acquires a company expecting to inherit Rs 50 crore of normalised working capital. Post-close, the actual requirement turns out to be Rs 75 crore. The buyer has effectively overpaid by Rs 25 crore, because the cash expected for operations or debt service is trapped in receivables, inventory and depleted supplier credit that reverted to normal within weeks of closing.
The working-capital trap is one of the most predictable and most frequently repeated value-transfer mechanisms in M&A. The seller benefits. The buyer pays. The mechanism operates in plain sight, within the SPA terms, using tools that are entirely legal.
How the Trap Is Set
Closing-date compression
The seller has a direct incentive to minimise working capital at closing. Most SPAs include a working-capital adjustment that settles the difference between actual working capital at close and an agreed target. A seller who compresses working capital below target receives a smaller adjustment or an upward payment.
The tools: collect receivables aggressively in the four weeks before close (discounts, pressure, accelerated invoicing). Delay purchases (defer procurement, run down inventory, push orders into post-close). Extend payables (negotiate extensions, delay payments that would normally be made before close).
Each action temporarily compresses working capital. Within 30 to 60 days, receivables rebuild, inventory restocks, payables normalise. The buyer funds the reversion.
Overdue receivables carried at face value
A receivable ageing schedule showing Rs 30 crore “current” may include Rs 8 crore overdue by 90 to 120 days without adequate provision. The buyer inherits a receivable the balance sheet calls an asset but that may never convert to cash.
Inventory at cost above realisable value
Inventory carried at Rs 40 crore may include Rs 12 crore of slow-moving or obsolete stock. The buyer acquires inventory valued at cost but realisable at a fraction.
Customer advances consumed, not delivered
Customer advances of Rs 15 crore represent cash received for goods or services not yet delivered. If the buyer does not adjust, they inherit the delivery obligation without the working-capital benefit that funded it.
Seasonality ignored
A company whose working capital swings between Rs 40 crore and Rs 80 crore across the year cannot be assessed at a single closing date. A closing at the seasonal low presents a figure unrepresentative of the actual operating requirement.
One-off improvements
Factoring Rs 20 crore of receivables before close, securing an unusual customer advance, negotiating a one-time supplier extension: each temporarily improves the position through mechanisms that will not repeat.
The Diligence Methodology
In Northrop Management Private Limited’s transaction advisory practice, working-capital analysis follows five steps.
Step 1: Calculate trailing 12-month average normalised working capital. The full-cycle average captures seasonal peaks, troughs and the normal operating rhythm. It cannot be managed by closing-date tactics because it spans the full year.
Step 2: Normalise for non-recurring items. Remove factoring, unusual advances, one-time supplier concessions, insurance recoveries and any other item that distorted working capital in a specific period.
Step 3: Stress-test receivables and inventory. Age the receivable book by counterparty and assess collectability. Age the inventory by SKU and assess realisable value. The gap between carrying value and recoverable value is the buyer’s inherited loss.
Step 4: Compare normalised to closing-date. The gap between the normalised figure and the closing figure is the trap. If closing is materially below normalised, the buyer should expect reversion and fund accordingly.
Step 5: Negotiate the SPA target using normalised, not closing, figures. The working-capital adjustment mechanism protects the buyer only as well as the target it references. A target based on the last three months’ average (which may include compression) provides less protection than one based on the 12-month normalised average.
The Economic Question
The question that determines who bears the cost: what is “normal” working capital, and who gets economically disadvantaged when the definition is wrong?
If the SPA defines normal as the closing balance, the buyer absorbs reversion. If it defines normal as the trailing 12-month normalised average, the seller absorbs compression. The definition is a negotiation point, and the party with better diligence wins.
Ashish Chaudhary, frames the diligence principle directly: “The purchase price is what you negotiate. The working-capital position is what you inherit. If your diligence does not distinguish between the two, you will pay the right price for the wrong cash position. The definition of normal working capital can transfer crores between buyer and seller, and the party that defines it controls the economics.”
Questions for the Boardroom
- Did our diligence calculate normalised working capital using a trailing 12-month average, or did it rely on the closing-date position?
- What was the actual working-capital position 90 days after close, and how did it compare to the closing figure?
- Did we age the receivable book by counterparty and assess collectability, or accept the face value?
- How much of the inherited inventory was sold within 12 months at or above carrying value?
- If we had used the 12-month normalised figure as the SPA target instead of the closing figure, how much would the price have changed?
Closing Implication
The working-capital trap is not complex. It is predictable. Sellers compress working capital before close. Buyers inherit the reversion. The defence is a diligence process that normalises over the full cycle, stress-tests the components and negotiates the SPA target on the normalised figure.
A buyer who understands this will negotiate a target that reflects operational reality. A buyer who does not will discover, in the weeks after close, that the cash they thought they acquired was never really there.
