Working capital is where more businesses die than most founders realise. Not because of competition, not because of a bad product, not because of a failed fundraise — but because the cash cycle between paying for inputs and collecting from customers becomes too long to bridge. The business is profitable. It is growing. It simply runs out of the cash to keep operating.
Understanding working capital is not optional for anyone who runs or finances a business. It is the difference between a business that survives growth and one that is destroyed by it.
What working capital actually is.
Working capital is current assets minus current liabilities. In plain language: the cash and near-cash assets the business has available to fund its day-to-day operations, minus the short-term obligations that must be met in the near term.
But the number that matters operationally is the cash conversion cycle (CCC): Days Sales Outstanding + Days Inventory Outstanding − Days Payable Outstanding. This is the number of days between paying cash for inputs and receiving cash from customers. A business with a CCC of 60 days on ₹1 crore monthly revenue needs ₹2 crores of working capital to operate at steady state. A business with a CCC of 90 days needs ₹3 crores. The only thing that changed is the timing of cash flows.
Working capital is not a finance metric. It is a measure of how long your business has to survive on its own before it gets paid.
What determines your working capital requirement.
Receivables (Days Sales Outstanding). How long do your customers take to pay after you invoice them? A B2B business selling on 60-day credit terms to enterprise clients has a structural receivables challenge. Every rupee of revenue sold is a rupee of cash that will not arrive for two months. As the business grows, this gap grows proportionally. A startup that 10x-es revenue on 60-day terms needs 10x the working capital to fund those receivables.
Inventory (Days Inventory Outstanding). How much inventory does the business carry, and how long does it sit before being sold? A fashion retailer buying winter collection in August and selling it through January is carrying 5–6 months of inventory. A restaurant has 3–5 days. The inventory holding period is a direct determinant of working capital requirement — and a major source of waste and obsolescence risk in businesses that manage it poorly.
Payables (Days Payable Outstanding). How long does the business take to pay its suppliers? This lever runs in the opposite direction — longer payables reduce working capital requirements. DMart pays its FMCG suppliers in 25 days because the goods are already sold before the invoice falls due. Walmart has been known to run negative working capital because supplier payment terms exceed the selling cycle. Supplier financing is not charity — it is a genuine competitive advantage for businesses that can command it.
| Business Type | DSO | DIO | DPO | CCC | Assessment |
|---|---|---|---|---|---|
| DMart (Retail) | 1 | 28 | 26 | 3 days | Near-zero |
| IT Services (mid-cap) | 75 | — | 30 | 45 days | Manageable |
| Pharma Distributor | 60 | 45 | 30 | 75 days | High requirement |
| SaaS (annual billing) | 0 | — | 30 | −30 days | Self-funding |
| Construction / Infra | 120 | 60 | 45 | 135 days | Capital trap |
Why growing businesses run out of working capital.
This is the pattern that kills otherwise healthy businesses: the company is growing 40% year-on-year, customers are paying on 75-day terms, and inventory is being built ahead of demand. The growth is real. The profitability is real. But every new rupee of revenue requires additional working capital before the cash arrives — and the gap between additional working capital required and cash generated from existing operations gets larger every month.
A simple illustration: a business with ₹1 Cr monthly revenue and a 75-day CCC needs ₹2.5 Cr of working capital. If it grows to ₹2 Cr monthly revenue, it now needs ₹5 Cr of working capital. It has to find ₹2.5 Cr of new working capital while the business is growing. If bank lines are not expanding proportionally and retained earnings are insufficient, the business faces a cash crisis at the moment it looks most successful.
The metric to watch: working capital as a percentage of revenue. If it is growing quarter-on-quarter without a clear explanation (seasonal buildup, deliberate strategic inventory), the business is becoming less efficient at converting revenue to cash. That trend, if unchecked, eventually produces a crisis.
How to reduce working capital requirements.
The working capital playbook
- Tighten credit terms selectively. Segment customers by size, relationship, and payment history. Offer early payment discounts (1–2%) to large clients who can take them. Move smaller clients to shorter terms. Accept that some growth slows — unpaid growth is not growth, it is a receivables problem.
- Invoice immediately and follow up systematically. Most receivables delays are caused by delayed invoicing, not slow customers. Invoice the day delivery is confirmed. Set automated reminders at day 25, 35, and 45. The single biggest improvement in most SME receivables is faster invoicing, not better customers.
- Negotiate supplier terms actively. Payable terms are negotiable, especially for growing businesses. A supplier would rather extend 45-day terms to a customer growing 30% year-on-year than lose the account to a competitor who offers 60 days.
- Use invoice discounting and supply chain financing. Banks and fintech platforms will advance 80–90% of the value of a confirmed invoice at 10–14% annualised cost. For a business earning 40%+ gross margins, paying 12% to unlock receivables one month early is good arithmetic.
Managing working capital is a daily habit, not a quarterly review.
The businesses that manage working capital well treat it as an operational discipline, not a finance exercise. The sales team knows the credit terms. The operations team knows the inventory targets. Accounts receivable is reviewed weekly, not monthly. No invoice is older than 30 days without a documented follow-up trail.
The businesses that manage it poorly treat it as something the finance department handles quarterly. By the time the quarterly review catches a receivables spike or an inventory buildup, the working capital gap is 60–90 days deep and requires either emergency bank lines or a call to investors. Neither is a position of strength.
Working capital is not a balance sheet item. It is a daily operating decision that compounds into a balance sheet reality.