Revenue Growth vs Operating Cash Flow: Why Growth Consumes Cash

Revenue growth measures whether a business is selling more. Operating cash flow measures whether running it produced money. Growth pours cash into receivables and inventory long before customers pay, so the two can move in opposite directions. A widening space between rising revenue and flat or falling operating cash is ordinary in a growth phase and dangerous when it persists, and telling one from the other is the whole skill.

Here is what sits underneath that. Every extra rupee of sales made on credit is a rupee of revenue now and a rupee of cash later. Growth therefore pulls money out of the business before it puts any back, and the faster the growth, the larger the amount sitting in transit at any moment. Nothing in that movement is a fault, a fiddle or a warning sign. The absorption is arithmetic. It happens to a healthy business exactly as reliably as it happens to a doomed one, and that reliability is precisely why so many people misread it in both directions.

What does revenue growth actually measure?

Revenue growth measures the change in what a business billed, from one period to the next, expressed as a percentage of the earlier period. The whole definition is that one comparison. The word growth carries so much freight that people forget how narrow the measurement is. Revenue growth compares two figures from the top line of two income statements. The comparison says nothing about whether either figure was collected, whether either sale was profitable, or whether the customer is still in business.

Revenue is recorded when the goods are delivered or the service is performed, not when the customer pays, so revenue growth is a measure of promises earned rather than money received. This follows from the accrual basisThe rule that a transaction is recorded in the period in which it happens rather than the period in which the money moves, so a sale on credit is recorded on delivery. that every income statement is built on. Think of a tailor who stitches forty school uniforms in March and hands them over on the last day of the month, with the school paying in May. March revenue includes those forty uniforms. The tailor's cash box in March contains nothing from them at all. The tailor has grown, honestly and measurably, and cannot buy cloth with the growth.

Anjani Stationers, the invented notebook maker used throughout, billed Rs 2,40,00,000 in the year called year one here and Rs 2,70,00,000 in year two. The increase of Rs 30,00,000 on a base of Rs 2,40,00,000 is 12.5 per cent, and that single figure is the entire measure. Twelve and a half per cent is a genuinely good number for a maker of school notebooks. The figure is also, on its own, silent about every question that decides whether the business can pay its people next month.

What does operating cash flow actually measure?

Operating cash flow measures the money that actually moved in and out of the bank because of the business's ordinary trading, over the same period. Money from customers, money to suppliers, money to staff, money to the tax authority. Spending on equipment or on buying other businesses belongs to the investing section of the same statement, and money raised or repaid in borrowing belongs to the financing section, so operating cash flow excludes both.

Operating cash flow answers a question revenue growth cannot be asked at all: did running this business over the last year leave more money in the bank than it took out? Go back to the tailor. In March the tailor stitched forty uniforms, bought cloth for cash, paid an assistant for cash, and was paid for nothing. March operating cash flow is deeply negative. March revenue is the best it has ever been. Both statements are true, neither is a mistake, and the tailor's own household budget cares only about the second one. Anjani Stationers generated Rs 36,30,000 of net cash from operating activities in year two, a healthy figure. How that figure is computed line by line is set out under operating cash flow.

Why does growth absorb cash before it produces any?

Because of the order in which the events happen. Look at a single order and follow it forward. Paper and board have to be bought and paid for, so cash leaves. The notebooks have to be made and stored, so cash sits in the shelves as inventoryGoods a business holds ready to sell, together with the raw materials and part finished goods it holds to make them, recorded at what they cost.. The notebooks are delivered and an invoice goes out, so revenue is recorded and the amount owed becomes a trade receivableMoney a customer owes the business for goods already delivered or services already performed, expected to arrive within the ordinary trading period.. Only at the end does the school pay. Revenue arrives at step three. Cash arrives at step four. Between the two, the money is real, earned, and entirely unavailable.

An extra sale is not a rupee of cash delayed, it is a rupee of cash taken out and replaced later, and while sales are growing there are always more of them going out than coming back. The imbalance between what goes out and what comes back is the part people miss. If a business sells the same amount every month, the money coming back from three months ago exactly matches the money going out this month, and the amount in transit stays flat. Grow the monthly amount and this month's outflow is larger than the return from three months ago, so the amount in transit rises. The business is not losing money. The business is funding a bigger and bigger float, out of its own pocket, for as long as the growth continues.

Now watch the same mechanism at the scale of a whole year, using Anjani Stationers' published figures. Revenue rose Rs 30,00,000. Of that increase, receivables before any provision rose Rs 17,00,000 and inventory rose Rs 9,00,000. So Rs 26,00,000 of the Rs 30,00,000 sat in two balance sheet lines rather than in the bank. Two things pushed back the other way. Trade payablesMoney the business owes its own suppliers for goods and services already received, which the business has not yet paid. rose Rs 7,00,000. Suppliers, in other words, funded part of the growth by waiting longer for their own money. The contract liabilityMoney a customer has paid in advance for goods or services the business has not yet delivered, held as an obligation until the work is done. rose Rs 2,00,000, meaning customers paid ahead for work not yet delivered.

Net of what suppliers and customers funded, Rs 17,00,000 of the Rs 30,00,000 increase in revenue, 56.7 per cent of the entire increase, was absorbed rather than received. The proportion is the shape of the whole subject. Fifty seven paise in every extra rupee of sales did not turn into cash inside the year. The remaining Rs 13,00,000 did, and it is not lost either: the Rs 17,00,000 is sitting in stock on the shelves and in invoices with schools, both of which are assets and both of which are expected to convert. The point is not that the money vanished. The point is that the business had to find it from somewhere in the meantime.

How far can the two measures diverge?

Far enough that a business can post its best sales year and end it with less money than it started with, and Anjani Stationers did exactly that in year two. The business billed Rs 2,70,00,000, made a profit after tax of Rs 30,00,000, and generated Rs 36,30,000 of operating cash. Against that, the year needed Rs 34,00,000 for investing, being equipment, software and the 70 per cent stake in Chitra Binding, and Rs 4,30,000 for financing, being lease repayment and interest. Add those and the year needed Rs 38,30,000 of cash for things outside ordinary trading.

Operating cash of Rs 36,30,000 against a requirement of Rs 38,30,000 leaves a shortfall of Rs 2,00,000, and that shortfall is why the cash balance fell from Rs 7,00,000 to Rs 5,00,000 in a year of record sales and record profit. Sit with the size of that gap for a moment. It is small, and that is the interesting part. The business missed funding itself by about five per cent of its own operating cash. The business was not close to a crisis and it was not comfortably clear either. A slightly faster growth rate, or a slightly slower collection, and the shortfall would have been several times larger. The sensitivity of the shortfall to the growth rate is worth measuring, and the interactive below measures it.

At the starting position of 12.5 per cent, revenue is Rs 2,70,00,000 and operating cash is Rs 36,30,000, Rs 2,00,000 short of the Rs 38,30,000 the year needed. Pull the growth rate down to zero and revenue stays at Rs 2,40,00,000. With no growth there is nothing extra to absorb, so operating cash rises to Rs 47,37,778, a surplus of Rs 9,07,778. Push it to 40 per cent and revenue reaches Rs 3,36,00,000 while operating cash falls to Rs 11,92,888, a shortfall of Rs 26,37,112. On the published proportions the business funds itself only up to about 10.2 per cent growth, so at its actual 12.5 per cent it had already passed that point. If the balances merely keep pace with sales instead of running ahead of them, the crossing moves out to about 27.8 per cent. Two other readings are worth noticing. With no increase in sales there is no incremental absorption for the proportions to differ on, so at a growth rate of zero the two buttons give the identical answer. And even at 40 per cent growth operating cash never turns negative on these settings. It falls to Rs 11,92,888 and stays positive, and staying positive is the difference between a business absorbing cash and a business losing it.

What does a widening divergence signal, and what does it not?

A widening divergence signals one of two things, or a mixture of the two, and the whole art is separating them. The first is volume: more sales at the same terms mechanically means more money in transit, and that is the growth itself showing up in the balance sheet. The second is terms and quality: the same volume of sales taking longer to collect, or a larger share never collected at all. Volume absorption reverses when growth steadies. Collection absorption does not reverse. Nothing about it was temporary.

The single cleanest test for which of the two is at work is whether the receivables balance grew faster than revenue: if it grew at the same rate, the divergence is volume, and if it grew faster, something beyond volume is at work. Apply it here. Anjani Stationers' revenue grew 12.5 per cent in year two. Receivables before any provision grew from Rs 78,00,000 to Rs 95,00,000, a rise of 21.8 per cent, nearly twice as fast. Inventory grew from Rs 19,00,000 to Rs 28,00,000, a rise of 47.4 per cent, nearly four times as fast. So volume explains part of the absorption and not the whole of it, and the difference has a number: had both balances merely kept pace with sales, the same 12.5 per cent growth would have absorbed Rs 10,00,000 instead of Rs 17,00,000 and left operating cash at Rs 43,30,000 instead of Rs 36,30,000, comfortably above the Rs 38,30,000 the year needed.

There is a third piece of evidence sitting nearby, and it belongs to quality rather than volume. The provision for doubtful debtsAn amount taken off what customers owe, to reflect the part the business no longer expects to collect from them. against those receivables went from Rs 3,00,000 to Rs 9,00,000 across the same year, a charge of Rs 6,00,000 taken against profit. The business itself, looking at its own ledger, concluded that a larger share of what it is owed will not arrive. The charge is not an accusation and not a scandal. Anjani Kulkarni and Meera Rao are reading their own list and marking it honestly.

A widening divergence never proves on its own that anything is wrong. The same widening is produced by a business winning bigger schools on longer terms and by a business quietly failing to collect. The two look identical for at least a year in every measure on the top line, and they diverge only in what happens next. The meaning lives in the cause and in the reversal, not in the width, so there is no number of percentage points of divergence that means trouble.

When is the divergence a phase rather than a problem?

When the absorbed cash comes back. Whether the cash comes back is the entire test. It is a test about the future rather than about the current year, and no single set of accounts can settle a question about the future. A growth phase absorbs cash on the way up and releases it when the growth rate steadies. Once monthly sales stop rising, the money returning from earlier months finally matches the money going out. A growth problem absorbs cash on the way up and keeps absorbing it after the growth has slowed. The absorption was never about growth in the first place.

The clean way to tell them apart is to watch what happens to operating cash in the first year in which the growth rate falls: in a phase it jumps, and in a problem it does not. The household version runs as follows. A cousin takes a bigger flat and spends heavily for three months on furniture and deposits, and the savings account empties. The empty account is a phase. In month four the spending stops and the account refills, and that refilling is what makes it recognisable as a phase. If in month four the account keeps emptying at the same rate, the furniture was never the reason. Nothing about the first three months could separate the two cases. Month four separated them immediately.

How did revenue and cash move at Anjani Stationers across three years?

Take all three years together and rebase both series to 100 in the earliest of them, called year zero here. Revenue went Rs 1,95,00,000, then Rs 2,40,00,000, then Rs 2,70,00,000, growth of 23.1 per cent and then 12.5 per cent. Receivables before any provision went Rs 30,00,000, then Rs 78,00,000, then Rs 95,00,000, growth of 160.0 per cent and then 21.8 per cent. On the rebased scale revenue reads 100, then 123.1, then 138.5. Receivables read 100, then 260.0, then 316.7.

Across two years Anjani Stationers grew revenue by 38.5 per cent and grew the amount its customers owe it by 216.7 per cent, and that ratio, not either figure alone, is the finding. Notice that receivables outran revenue in both years, not one. Year one was the extreme: sales up not quite a quarter while the amount owed went up more than two and a half times. The jump in receivables is the single largest movement anywhere in the three year record, and year one is the year in which the pattern was set. Year two was milder and still in the same direction. A business can absorb one year like that as the cost of winning bigger customers. Two years in the same direction is a pattern.

How does a lender read the two measures together when money is being decided?

Outside the classroom, these two numbers are not ideas people admire. The two numbers are used in a room where a facility is granted or refused, and a lender reading Anjani Kulkarni's accounts moves through them in a fixed order. Nowhere in that order does the lender ask whether growth is good. The lender asks who is paying for it.

A lender reads revenue growth and operating cash together to answer one question: is this business funding its own growth, or is it about to ask somebody else to? The first move is the pair: revenue up 12.5 per cent, operating cash Rs 36,30,000 against Rs 38,30,000 of committed uses. Growing, and Rs 2,00,000 short. The second move is who covered the shortfall. The term loan moved only Rs 20,000 across the year, from Rs 4,00,000 to Rs 4,20,000, so no lender funded it. The money came out of the cash balance, and the cash balance fell from Rs 7,00,000 to Rs 5,00,000. The third move is where the absorbed cash is sitting now: Rs 95,00,000 of receivables and Rs 28,00,000 of inventory, against a closing cash balance of Rs 5,00,000. The fourth move is the condition. A lender advancing against those balances writes a covenantA promise written into a loan document that the borrower will keep some stated condition, tested at agreed dates, with consequences set out in the document if it is broken., illustratively a floor of Rs 3,00,000 on the closing cash balance. The next shortfall then arrives as a conversation rather than as a surprise.

Notice what the lender did not do at any point in that sequence. No step treated 12.5 per cent as good news or as bad news. No step compared Anjani Stationers with anybody else. Each move took a number that already exists in the accounts and asked one question of it, and the four answers assembled into a reading that a person could act on. A reading a person can act on is what these two measures are for, and it is why they are almost useless separately and quite hard to misread together.

Anjani Stationers Private Limited, Chitra Binding Works Private Limited, Anjani Kulkarni, Meera Rao and the Sunrise Public School group are invented.
Educational material. Not advice on any investment, tax, budget or market position.