Working capital: the silent killer of ₹50 crore businesses

Most founders who run out of cash were not losing money when it happened. Their profit and loss account showed a business that was growing and profitable, and their bank statement showed one that could not meet the next payroll. The gap between the two is working capital: the money a business has lent to its customers, parked in its warehouse, and borrowed from its suppliers at any given moment.

At ₹5 crore of revenue that gap is a nuisance the founder can cover personally. At ₹50 crore it is usually larger than a year’s profit, and it grows every time sales do. This article sets out how the arithmetic works, why it bites hardest between ₹25 crore and ₹100 crore, and which levers a founder controls before reaching for another loan.

How a profitable company runs out of cash

The cash conversion cycle measures how long a rupee spent on making or buying something takes to come back as cash. It is the days your customers take to pay, plus the days stock sits before it is sold, minus the days you take to pay your own suppliers. Multiply it by a day’s revenue and you have a rough measure of the money tied up in the business.

A useful rule of thumb falls out of this. A company can fund its own growth from profit only up to a rate set by two numbers: its net margin, and the share of a year’s revenue its working capital consumes. With a 5% margin and a 105-day cycle, that rate is about 20% a year, before any spending on plant or equipment. Grow faster than that, or let the cycle lengthen, and the difference has to come from a lender, an investor, or the founder.

Growth eats working capital before it produces profit. A company growing faster than its margin can fund is borrowing against its own success, whether or not anyone has signed a loan.

Why the ₹25–100 crore band is where it bites

Three things change as a company crosses ₹25 crore. Its customers get bigger, because larger orders come from larger buyers, and larger buyers set payment terms. Its stock grows, because serving those buyers means holding more variety and more buffer. And its founder can no longer bridge the gap from personal savings, so the business comes to depend on a bank limit that was sized for last year’s balance sheet.

The numbers can move a long way. Crisil found in 2023 that about one in five small businesses, by value, would need more working-capital days than before the pandemic: Surat’s diamond exporters had gone from about 140 days to more than 200, and road contractors’ cycles had lengthened by more than 100 days.¹ Recordent, a credit-data firm, put the average invoice payment cycle across nearly 1.1 lakh small businesses at 73 days in June 2026.²

The total is large, though improving. A study by GAME, FISME and C2FO estimated that delayed payments owed to India’s small businesses stood at ₹7.34 lakh crore in March 2024, down from about ₹10 lakh crore in the previous edition.³

What the law already gives you

Many founders at this size do not realise how much statutory protection they have, or that they have it at all. The Micro, Small and Medium Enterprises Development Act requires a buyer to pay a micro or small supplier within the period agreed in writing, which cannot exceed 45 days, or within 15 days if nothing was agreed.⁴ Since April 2025, a business counts as small if its investment in plant, machinery or equipment is up to ₹25 crore and its turnover up to ₹100 crore.⁵ Many ₹50 crore companies that think of themselves as mid-sized are, in law, small enterprises.

The protection has three parts.

• Interest. A buyer that pays late owes compound interest, with monthly rests, at three times the bank rate notified by the Reserve Bank, whatever the contract says.⁶
• Tax. Since the 2024-25 assessment year, a buyer can claim a payment to a micro or small enterprise as an expense in the year it falls due only if it was paid within that 15- or 45-day limit. Pay late, and the deduction moves to the year in which the money actually goes out.⁴ That gives a large buyer’s finance team a direct tax reason to pay small suppliers on time.
• Recovery. An unpaid supplier can file on the government’s MSME Samadhaan portal, which refers the case to a state facilitation council. The portal shows 2,56,892 applications filed, and ₹31,699 crore payable in the 1,13,032 cases taken up by councils.⁷ It also shows the limits of the route: 81,595 applications rejected, 43,289 not yet looked at, and 67,366 cases disposed of.

Parliament passed amendments to the Act in August 2026. Once in force, they set 90-day limits for mediation and for the award that follows it, require a buyer whose challenge to an award has been pending for more than six months to pay at least half of it, and require central public sector companies to settle small suppliers’ invoices through the TReDS invoice-discounting platforms.⁸

None of this helps a company that has not registered on the Udyam portal, does not state its status on its invoices, or has no payment terms in writing. A surprising number of businesses at this size have one of the three, not all of them. The point of the law is rarely to sue a customer. It is to make paying you on time the cheaper choice for their finance team.

The levers, cheapest first

Most working-capital problems are solved, or at least contained, inside the company before any lender is involved. Roughly in order of cost:

1. Measure it monthly. Calculate receivable, inventory and payable days every month, and age receivables by customer. A cycle that lengthens by five days a quarter is invisible in the annual accounts and obvious in a monthly chart.
2. Invoice cleanly and on time. Many late payments are really disputes about paperwork: an invoice that does not match the purchase order, a missing delivery receipt, a wrong tax number. Each one restarts the customer’s payment clock.
3. Price the credit you give. Thirty extra days of credit, financed at 12%, costs about 1% of the invoice. On a 5% net margin that is a fifth of the profit on the order. Quote it, or offer a discount for paying early.
4. Watch concentration. A customer who is 30% of revenue and pays in 120 days is being financed by you. Know what share of your working capital each of your top five customers is using.
5. Cut slow stock. In most product businesses a minority of items account for most of the stock that does not move. Fewer variants, smaller minimum orders and a hard look at anything unsold for six months release cash permanently.
6. Use your statutory standing. Register on Udyam, print your status and terms on every invoice, and make sure customers’ finance teams know the 45-day clock applies to you.
7. Then finance the cycle, not the year. TReDS lets a supplier sell an invoice raised on a registered buyer, at a rate set largely by the buyer’s credit standing rather than the supplier’s. In August 2026 alone, the five platforms financed 1,64,261 invoices worth about ₹34,969 crore.⁹ A bank cash-credit limit sized to the cycle you will have next year, not the balance sheet you had last March, is the other half. For context, the average rate on new bank loans was 8.61% in August 2026; what a particular company pays depends heavily on its rating and its record.¹⁰

The warning signs

The pattern that comes before most cash crises at this size is recognisable months ahead:

• the overdraft sits near its limit for most of the month, not just at month-end;
• receivable days rise while sales rise, so the growth is being bought with credit;
• profit is up on last year and cash is down;
• suppliers are being paid later to keep the business moving; and
• statutory dues such as GST and TDS are being paid at the last possible moment, or after it.

Any one of these can have an innocent explanation. Three together mean the business is growing faster than its cycle allows, and the decision is a deliberate one: slow the growth, shorten the cycle, or raise money on purpose for growth rather than borrowing by accident to cover it.

That choice matters beyond the bank. Every lender, investor and acquirer looking at a ₹50 crore company asks the same question early on, which is how much cash the business needs in order to grow. A founder who can answer it with a monthly chart rather than a guess is already in a stronger position than most.

This article is general information for founders, written from public sources listed below. It is not investment, legal or tax advice. Figures are as published by each source on the date shown.