Working capital: the money stuck in the business

By the end of this lesson

The cash conversion cycle, in days you can picture
Why growth makes a working-capital problem worse, not better
How negative working capital turns customers into your funding source

Picture this

Ravi's money, and where it sleeps

Ravi buys ₹10 lakh of cables. They sit in his godown for 60 days before selling. The builder who buys them pays 75 days later. Ravi's own supplier gave him 30 days to pay.

So: he pays out cash on day 30. He gets cash back on day 135. For 105 days, ₹10 lakh of his money is out working for someone else.

If he wants to double his business, he needs another ₹10 lakh permanently parked in that gap. Growth doesn't release cash here — it consumes it.

The cash conversion cycle

CCC = DIO + DSO − DPO

DIO: days inventory outstanding — how long stock sits before selling
DSO: days sales outstanding — how long customers take to pay
DPO: days payable outstanding — how long you take to pay suppliers

Read it as: how many days is my cash locked up between paying out and getting paid? Lower is better. Negative is exceptional — it means you get paid before you pay.

Computing the three

DIO = Inventory ÷ (COGS ÷ 365) DSO = Receivables ÷ (Revenue ÷ 365) DPO = Payables ÷ (COGS ÷ 365)

Each is a balance-sheet number divided by a daily rate from the P&L. All three come from statements you already know how to read.

Worked exampleRavi Electricals — the cash cycle

Using revenue ₹420 Cr, COGS ₹260 Cr, and the balance sheet from Module 2.

Inventory: ₹84 Cr
Receivables: ₹96 Cr
Payables: ₹62 Cr

DIO = 84 / (260/365) = 84 / 0.712 = 118 days

DSO = 96 / (420/365) = 96 / 1.151 = 83 days

DPO = 62 / (260/365) = 62 / 0.712 = 87 days

CCC = 118 + 83 − 87 = 114 days

So → ₹114 days of cash is locked in the business at all times. To grow revenue 30%, Ravi needs roughly 30% more working capital funded from somewhere — retained profit, a loan, or new shares. This is why profitable companies borrow.

Negative working capital: the best business model there is

Picture this

The supermarket's quiet advantage

A grocery chain sells your soap on the day it arrives and takes your money instantly — cash or UPI, no credit. It pays its supplier 45 days later.

So the chain has held your money for 45 days before parting with any of its own. Its customers fund its inventory. Multiply that across thousands of stores and it's a permanent, interest-free loan that grows as the business grows.

This is why the strongest retail and quick-service businesses can expand aggressively without heavy borrowing — growth generates cash instead of consuming it.

Reading the cash conversion cycle

Negative
What it means: Customers fund the business. Growth releases cash. Exceptional.
0 – 45 days
What it means: Efficient. Working capital is not a constraint on growth.
45 – 90 days
What it means: Normal for most manufacturers.
90 – 150 days
What it means: Heavy. Every rupee of growth needs funding.
Above 150 days, and rising
What it means: Cash is being swallowed. Expect rising debt whatever the P&L says.

CCC	What it means
Negative	Customers fund the business. Growth releases cash. Exceptional.
0 – 45 days	Efficient. Working capital is not a constraint on growth.
45 – 90 days	Normal for most manufacturers.
90 – 150 days	Heavy. Every rupee of growth needs funding.
Above 150 days, and rising	Cash is being swallowed. Expect rising debt whatever the P&L says.

Compare against the same company's own history and its direct peers — a jeweller's cycle is structurally long and a supermarket's is structurally negative. The direction of travel is the real signal.

The trend that predicts trouble

A rising cash conversion cycle is one of the earliest warnings a business gives, and it's almost never mentioned in a results announcement. Each component tells a different story about what's going wrong.

DSO (customers slower to pay)
What it usually means: Credit was loosened to push sales, or customers are in difficulty. Sometimes the sales were never real.
DIO (stock sitting longer)
What it usually means: Demand is slowing, or the product mix is going stale. Watch for a write-down coming.
DPO (paying suppliers later)
What it usually means: Ambiguous. Bargaining power — or a cash squeeze. Read it beside cash and debt.

What's rising	What it usually means
DSO (customers slower to pay)	Credit was loosened to push sales, or customers are in difficulty. Sometimes the sales were never real.
DIO (stock sitting longer)	Demand is slowing, or the product mix is going stale. Watch for a write-down coming.
DPO (paying suppliers later)	Ambiguous. Bargaining power — or a cash squeeze. Read it beside cash and debt.

Worked exampleWatching a squeeze build

Four years of the same company. Reported profit rose every year.

DSO: 58 → 71 → 89 → 112 days
DIO: 64 → 70 → 81 → 96 days
DPO: 52 → 55 → 58 → 61 days
Reported PAT: up every year

CCC FY22 = 58 + 64 − 52 = 70 days

CCC FY25 = 112 + 96 − 61 = 147 days

Cash locked up more than doubled while profit 'grew'

So → Sales are being booked that customers pay for ever more slowly, on stock that moves ever more slowly. The P&L looked excellent throughout. Operating cash flow would have been falling the whole time — which is exactly why the two checks belong together.

The one thing

Rising working capital days plus falling operating cash flow plus rising debt is the classic pre-crisis signature. Any one of the three can be explained away. All three together rarely can.

Where people lose money

Growth is not the cure for a working-capital problem

The intuitive response to a cash squeeze is to sell more. But if each sale locks up cash for 140 days, selling more locks up more cash. Growth accelerates the problem it appears to solve.

This is how well-run, genuinely profitable companies end up in trouble: the order book is full, the P&L is healthy, and the bank account is empty. Fix the cycle first; grow second.

The working-capital check

☐Compute DSO, DIO, DPO for the last four or five years.
☐Is the cash conversion cycle rising, flat, or falling?
☐Are receivables growing faster than revenue?
☐Is inventory growing faster than cost of goods sold?
☐Does the working-capital trend explain any gap between profit and operating cash flow?
☐Is short-term debt rising alongside the cycle? That's the funding gap being plugged.

In one screen

1CCC = DIO + DSO − DPO: how many days your cash is locked up.
2Negative CCC means customers fund the business — a structural advantage.
3Rising DSO or DIO is an early warning that appears well before profit falls.
4Growth makes a working-capital problem worse, never better.

Check yourself

Nothing is scored or stored — the explanation after each answer is the point.

1/2

DIO 74 days, DSO 96 days, DPO 40 days. What's the cash conversion cycle, and what does it imply?

2/2

A company's DSO rose from 45 to 95 days over three years while revenue grew steadily. What should you check next?

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Red flags: the quiet killers

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Negative working capital: the best business model there is

Picture this

The supermarket's quiet advantage

A grocery chain sells your soap on the day it arrives and takes your money instantly — cash or UPI, no credit. It pays its supplier 45 days later.

This is why the strongest retail and quick-service businesses can expand aggressively without heavy borrowing — growth generates cash instead of consuming it.

Reading the cash conversion cycle

Negative
What it means: Customers fund the business. Growth releases cash. Exceptional.
0 – 45 days
What it means: Efficient. Working capital is not a constraint on growth.
45 – 90 days
What it means: Normal for most manufacturers.
90 – 150 days
What it means: Heavy. Every rupee of growth needs funding.
Above 150 days, and rising
What it means: Cash is being swallowed. Expect rising debt whatever the P&L says.

CCC	What it means
Negative	Customers fund the business. Growth releases cash. Exceptional.
0 – 45 days	Efficient. Working capital is not a constraint on growth.
45 – 90 days	Normal for most manufacturers.
90 – 150 days	Heavy. Every rupee of growth needs funding.
Above 150 days, and rising	Cash is being swallowed. Expect rising debt whatever the P&L says.

The trend that predicts trouble

DSO (customers slower to pay)
What it usually means: Credit was loosened to push sales, or customers are in difficulty. Sometimes the sales were never real.
DIO (stock sitting longer)
What it usually means: Demand is slowing, or the product mix is going stale. Watch for a write-down coming.
DPO (paying suppliers later)
What it usually means: Ambiguous. Bargaining power — or a cash squeeze. Read it beside cash and debt.

What's rising	What it usually means
DSO (customers slower to pay)	Credit was loosened to push sales, or customers are in difficulty. Sometimes the sales were never real.
DIO (stock sitting longer)	Demand is slowing, or the product mix is going stale. Watch for a write-down coming.
DPO (paying suppliers later)	Ambiguous. Bargaining power — or a cash squeeze. Read it beside cash and debt.

Worked exampleWatching a squeeze build

Four years of the same company. Reported profit rose every year.

DSO: 58 → 71 → 89 → 112 days
DIO: 64 → 70 → 81 → 96 days
DPO: 52 → 55 → 58 → 61 days
Reported PAT: up every year

CCC FY22 = 58 + 64 − 52 = 70 days

CCC FY25 = 112 + 96 − 61 = 147 days

Cash locked up more than doubled while profit 'grew'

The one thing

Rising working capital days plus falling operating cash flow plus rising debt is the classic pre-crisis signature. Any one of the three can be explained away. All three together rarely can.

Where people lose money

Growth is not the cure for a working-capital problem

The intuitive response to a cash squeeze is to sell more. But if each sale locks up cash for 140 days, selling more locks up more cash. Growth accelerates the problem it appears to solve.

This is how well-run, genuinely profitable companies end up in trouble: the order book is full, the P&L is healthy, and the bank account is empty. Fix the cycle first; grow second.

The working-capital check

☐Compute DSO, DIO, DPO for the last four or five years.
☐Is the cash conversion cycle rising, flat, or falling?
☐Are receivables growing faster than revenue?
☐Is inventory growing faster than cost of goods sold?
☐Does the working-capital trend explain any gap between profit and operating cash flow?
☐Is short-term debt rising alongside the cycle? That's the funding gap being plugged.

Check yourself

Nothing is scored or stored — the explanation after each answer is the point.

1/2

DIO 74 days, DSO 96 days, DPO 40 days. What's the cash conversion cycle, and what does it imply?

2/2

A company's DSO rose from 45 to 95 days over three years while revenue grew steadily. What should you check next?