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Canonical formula calculator

WORKING CAPITAL

The cash buffer between your short-term assets and short-term obligations — your operating safety net.

Cash, receivables, inventory, and other assets expected to convert to cash within 12 months.

Accounts payable, short-term debt, and other obligations due within 12 months.

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Add context for case suggestions

Optional — helps us match this calculation against relevant case studies (coming soon).

What this tells you

Working capital is the dollar amount of cushion you have between near-term assets and near-term obligations. Positive working capital means you could cover your short-term bills today even if no new cash came in. Negative working capital means you are technically insolvent on a short-term basis and rely on incoming cash to stay current. Both can be real operating states; only one is comfortable.

When to use it

Calculate working capital at month-end. Pair it with current ratio for the full picture: the ratio tells you whether your buffer is proportionally healthy, the dollar number tells you how big the buffer actually is. A 1.5 ratio with $50K working capital is a different reality than a 1.5 ratio with $500K — the percentages are the same, the cash cushion is not.

What it doesn’t tell you

Working capital is a snapshot, not a flow. It does not tell you about the timing of receivables versus payables, the quality of your inventory, or your ability to raise short-term financing. A business with negative working capital can still operate fine if customer payments arrive before supplier payments are due — but you have to actually know the timing.

Coming soon

Cases, plays, and benchmarks for this metric will appear here as the Moonshot knowledge libraries grow. For now: log in to track your number over time and Moonshot will surface trend warnings when the substrate fills in.

Working Capital Calculator — Moonshot