How Working Capital Affects Business Valuation
Working capital may not get as much attention as revenue or EBITDA, but it can have a meaningful impact on a company's value.
What Is Working Capital?
Working capital is the amount of capital tied up in a company's day to day operations.
Working Capital = Current Assets − Current Liabilities
In practical terms, this includes things like inventory that has not yet been sold, customer invoices that have not yet been collected, and amounts owed to suppliers. It is important to remember that working capital is not the same as profit. A company can report strong profits while still having a significant amount of cash tied up in its operations.
Why Working Capital Matters
A business can look profitable on its income statement and still face cash flow pressure if too much money is tied up in receivables or inventory.
Looking at working capital can help show:
• Whether the company's growth is generating cash or consuming it
• How efficiently the business turns sales into cash
• How much additional capital may be needed to support future growth
• How much cash a buyer may need to put into the business after an acquisition
This becomes especially important for companies that are growing quickly. Higher revenue often means higher receivables and inventory, which can require additional cash even when the business is profitable.
Working Capital in M&A Transactions
Working capital can also have a direct impact on the purchase price in an acquisition. Most purchase agreements establish a target level of working capital, often based on the company's historical operating needs. The actual working capital delivered at closing is then compared with that target. If the company delivers more working capital than the agreed target, the purchase price may increase.
If it delivers less, the purchase price may be reduced. Because these adjustments can have a meaningful impact on the final transaction value, working capital is often an important area of negotiation between buyers and sellers.
How Working Capital Affects a DCF
Working capital is also an important part of free cash flow in a DCF valuation. When working capital increases, the business uses cash. This reduces free cash flow. When working capital decreases, cash is released back into the business. This increases free cash flow. One common modeling mistake is to assume that working capital will remain at a fixed percentage of revenue throughout the forecast period.
That may not be realistic for a growing company. As revenue increases, the business may need to carry more inventory and extend more credit to customers. If those additional requirements are not reflected in the forecast, the DCF can overstate free cash flow and, ultimately, the company's value.
Metrics That Help Measure Working Capital Efficiency
A few operating metrics can provide a clearer picture of how efficiently a company manages its working capital.
Days Sales Outstanding measures how quickly customers pay their invoices. Days Inventory Outstanding measures how long inventory remains on hand before being sold. Days Payable Outstanding measures how long the company takes to pay its suppliers
Together, these metrics help determine the company's cash conversion cycle.
The cash conversion cycle measures how long it takes for cash invested in operations to come back into the business. A shorter cycle generally means less cash is tied up in day to day operations.
Warning Signs to Watch During Valuation
Certain working capital trends can deserve closer attention during financial analysis and due diligence.
Receivables growing faster than revenue may indicate that customers are taking longer to pay.
Inventory growing faster than sales can point to weaker demand, excess stock, or inaccurate forecasting.
Payables increasing significantly may indicate that the company is taking longer to pay suppliers and relying more heavily on supplier credit.
None of these trends automatically means there is a problem. They do, however, provide a reason to understand what is driving the change before relying on the company's reported cash flow.
Industry Matters
Working capital requirements can vary significantly depending on the industry.
Retail and grocery businesses can sometimes operate with negative working capital because customers pay at the point of sale while suppliers may be paid later.
Manufacturing companies generally require more working capital because they often carry significant inventory and receivables.
SaaS and subscription businesses can have relatively low working capital requirements, particularly when customers pay upfront.
This is why working capital should always be considered in the context of the company's business model and industry. A working capital level that looks high for one company may be completely normal for another.
Working capital may not appear directly in revenue or EBITDA, but it has a direct impact on how much cash a business needs to operate and how much cash it generates for its owners. For valuation purposes, getting the working capital assumptions right is particularly important for growing businesses. Underestimating the cash required to support growth can lead to overstated free cash flow and an inflated valuation. A good valuation therefore looks beyond reported earnings and asks a simple question: How much of the company's profit is actually turning into cash?
