Metrics & Performance
Last updated
Quick Answer
The difference between a company's current assets and current liabilities.
Working capital is the difference between a company’s current assets (cash, accounts receivable, inventory) and its current liabilities (accounts payable, short-term debt, accrued expenses). Positive working capital indicates a company can meet its short-term obligations and fund day-to-day operations, while negative working capital can signal liquidity problems or, in some business models like subscription software, a healthy prepayment structure where customers pay upfront. For startups, managing working capital effectively is critical to avoiding cash crunches even when the business is growing quickly.
In Practice
SupplyLink, a B2B procurement platform, discovered that working capital was quietly killing their growth. They purchased inventory from manufacturers (net 30 payment terms), held it for an average of 45 days, and then invoiced their customers with net 60 payment terms. This meant SupplyLink was paying for inventory 75 days before receiving payment — a working capital cycle of 75 days.
At their growth rate, this working capital gap consumed $3M per quarter. Their CFO restructured the terms: negotiated net 60 with key suppliers, reduced inventory holding time to 20 days through better demand forecasting, and offered 2% discounts for net 15 payment from customers. The working capital cycle dropped from 75 days to 20 days, freeing up $2.2M in cash and extending their runway by six months without raising additional capital.
Why It Matters
For founders, working capital management is one of the most overlooked aspects of startup financial management. Many founders focus exclusively on revenue growth and burn rate while ignoring the cash tied up in working capital. A company that grows 100% year-over-year but has a 90-day working capital cycle needs to fund that growth with proportionally more cash, which either comes from venture capital (dilutive) or debt (risky). Efficient working capital management can meaningfully extend runway and reduce dilution.
For investors, working capital dynamics reveal the cash efficiency of a business model. Businesses with favorable working capital cycles (negative working capital, like SaaS with annual prepayment) are inherently more capital-efficient than those with unfavorable cycles (like hardware companies that must invest in inventory before generating revenue). This directly affects how much capital the company needs to raise and, consequently, how much dilution founders and early investors will bear.
VC Beast Take
Working capital is the boring financial concept that quietly determines whether a startup thrives or dies between funding rounds. It's not the kind of thing that gets discussed at demo days or featured in pitch decks, but it's often the difference between a company that reaches its next milestone and one that runs out of cash six months early.
The SaaS model's dominance in venture capital is partly a working capital story. Annual prepaid subscriptions create negative working capital — the company collects cash before delivering the service — which means growth actually generates cash rather than consuming it. This is one of the structural reasons SaaS businesses are so capital-efficient compared to businesses with physical goods, long payment cycles, or significant upfront investment requirements. The smartest founders in non-SaaS businesses study their working capital cycle obsessively and engineer their business terms to be as favorable as possible.
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Working capital is the difference between a company’s current assets (cash, accounts receivable, inventory) and its current liabilities (accounts payable, short-term debt, accrued expenses).
Understanding Working Capital is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
Working Capital falls under the metrics category in venture capital. This area covers concepts related to the quantitative measures used to evaluate fund and company performance.
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