Cash quality ratios

Two companies report the identical profit: ₹500 crore each. One of them, over the year, actually collected ₹520 crore of cash from running its business. The other collected ₹120 crore. Same profit on the P&L; a nearly ₹400 crore difference in the money that came in the door. The first company's profit is backed by cash; the second company's profit is, for now, a promise — sitting in receivables that may or may not pay, in inventory that may or may not sell, in entries the cash has not yet confirmed. illustrative

An earlier module put it plainly: profit is an opinion, cash is a fact. Cash-quality ratios are the tools that hold the opinion up against the fact and measure the gap. They do not ask "how much profit did the company report?" — they ask "how much of that profit turned into cash, and if it did not, why not?" The answer separates earnings that are real from earnings that are an accounting artefact, and it does so before the artefact unwinds into a write-down or a disappointment. This module is about three of those tools — operating cash flow against profit, free cash flow conversion, and the cash tax rate against the P&L tax charge — and about reading them as a lie-detector wired to the bottom line.

Reported profit is assembled under rules that allow, and sometimes require, a great deal of judgement — when to recognise revenue, how fast to depreciate, what to provide for. Most of the time that judgement is honest and the profit is fair. But the judgement leaves room for profit to be reported that the cash has not backed, whether through aggressive choices, optimistic assumptions, or simply a business whose cash is trapped in working capital. Cash-quality ratios exist to catch that gap, because cash is far harder to fake than profit: you can book a sale, but you cannot book the money arriving in the bank.

Three checks do most of the work. Operating cash flow against profit — often written as CFO to PAT — asks whether the profit converted to operating cash. Over time this should sit around one or above; it runs comfortably above one for depreciation-heavy businesses (because depreciation is a non-cash charge subtracted in profit but added back in cash flow), and a persistent reading well below one means profit is not turning into cash. Free cash flow conversion goes one step further: free cash flow is operating cash flow minus the capital spending needed to keep the business running, and comparing it with profit shows how much genuinely spendable cash the profit produced after the business fed itself. And the cash tax rate against the P&L tax charge is a subtler cross-check: tax is paid in cash on real taxable profit, so if the accounts charge 25% but the company pays only a fraction of that in cash year after year, the book profit is running ahead of the taxable profit, and the reported earnings may be more generous than the cash reality. This module exists because the P&L is where companies present themselves and the cash flow statement is where they are checked, and the cash-quality ratios are how you run the check.

Hold profit against the cash three ways, and read the gaps.

CFO to PAT: does the profit become cash? Take operating cash flow from the cash flow statement and divide it by net profit. Read it over three to five years, not one, because any single year is noisy — a working-capital swing, a one-off receipt, a timing difference. Across several years the ratio should sit around one or above. Consistently above one is normal and healthy for a business with heavy depreciation, whose cash flow exceeds its profit by the non-cash charges added back. Consistently below one is the warning: profit is being reported that the operations are not turning into cash, and you must find where it is going — into a genuine working-capital build for growth (benign), or into receivables that are not collecting and inventory that is not selling (not benign).

Free cash flow conversion: how much cash is truly spendable? Operating cash flow flatters a capital-hungry business, because it is measured before the capital spending the business needs to survive. Free cash flow — operating cash flow minus capital expenditure — is the cash left after the business has fed itself, and it is what actually funds dividends, buybacks and debt repayment. But split the capex first: maintenance capex keeps the existing business running, while growth capex builds new capacity. A firm with negative free cash flow because it is pouring money into genuine expansion is investing, not failing; a firm with negative free cash flow because its ordinary operations cannot cover their own upkeep is in trouble. The number is the same; the reason is everything, and the notes and the capex commentary tell you which.

Cash tax versus book tax: is profit outrunning taxable profit? In the cash flow statement, find the tax actually paid in cash, and compare it with the tax charged in the P&L. A gap in a single year is usually timing — accelerated depreciation for tax, a one-off allowance. But a persistent, widening gap, where the book charge stays high and the cash paid stays low, means book profit is consistently exceeding the profit declared to the tax authority, with the difference piling up as deferred tax on the balance sheet. That is a quiet signal that the reported earnings may be more aggressive than the cash-based, taxable reality — one of the least-watched and most useful earnings-quality checks there is.

What counts as healthy cash conversion depends on the shape of the business — how asset-heavy it is, how it carries working capital, whether it is a lender at all. Here is cash quality read across four businesses.

The thread is that cash quality must be judged against the business's natural cash shape. For an asset-light firm, profit and cash should move together, so a gap is alarming precisely because nothing structural explains it. For a capital-heavy manufacturer, operating cash flow naturally exceeds profit while free cash flow can be negative through an investment cycle — so you read CFO-to-PAT for quality and treat negative FCF as a question about whether the capex is growth or upkeep, not an automatic failure. For a working-capital-heavy business, cash lagging profit is normal, and the real question is the reason, which the efficiency-ratio trends answer. And for a lender, the whole CFO-to-PAT frame does not apply; earnings quality lives in provisioning and asset quality instead. The discipline, once more, is to know the sector's normal cash shape before a gap between profit and cash can tell you anything — the same gap is benign in one business and damning in another.

A composite branded-goods company reports five straight years of rising profit, and the market treats it as a steady compounder. Run the cash-quality checks across those five years before you agree. illustrative

Start with CFO to PAT over the five years: 0.9, 0.8, 0.7, 0.6, 0.5. Individually none looks alarming; as a trend it is damning. Every year a larger share of the reported profit is failing to turn into operating cash — the ratio is not just below one, it is sliding steadily further below. So the "rising profit" is increasingly a paper figure. Where is the cash going? Cross to the working-capital trend and the answer appears: receivables have grown much faster than sales for four straight years, and inventory is building too. The profit is being reported on sales that are not collecting and stock that is not selling. Now the tax cross-check: the P&L has charged around 25% throughout, but cash tax paid has fallen to single digits as a percentage of pre-tax profit, and deferred tax on the balance sheet is swelling. That is the second, independent signal that book profit is running ahead of the real, taxable profit.

Two separate cash-quality checks — the falling CFO-to-PAT and the widening book-versus-cash tax gap — are pointing at the same conclusion from different directions: the reported profit is drifting away from the cash. The "steady compounder" is compounding its earnings faster than its cash, which is exactly the pattern that precedes a receivables write-down or a nasty reset when the working capital finally has to be cleaned up. None of this is visible on the profit line, which marches up cleanly all five years; all of it is visible the moment you hold that profit against the cash. The habit to build is to run CFO-to-PAT as a multi-year trend and the cash tax rate as a cross-check on any profit story before you believe it — the profit line is the claim, and the cash flow statement is the evidence.

Cash-quality ratios are noisy over a single year, so they cannot convict a business on one reading. A genuine working-capital build to support real growth, a one-off tax payment, a large customer paying just after year-end rather than just before — any of these can push CFO-to-PAT below one in a year for perfectly innocent reasons that reverse. The ratios are a trend instrument; a single year's gap raises a question, and only a persistent, multi-year pattern turns the question into a finding. Reading one bad year as proof of manipulation is as much an error as ignoring a five-year slide.

Nor can these ratios tell you why cash lagged profit — only that it did. A low CFO-to-PAT is consistent with an honest, fast-growing business funding its own working capital, and with a dishonest one booking uncollectable sales, and the ratio looks identical in both. The distinction lives in the reason: the quality of the receivables, the reality of the growth, the ageing of the working capital. The cash-quality ratio points the torch; you still have to walk into the notes to see what it is shining on.

And free cash flow cannot, on its own, separate growth capex from maintenance capex, which is the difference between an investment and a problem. Companies rarely split their capital spending cleanly into "keeping the lights on" and "building new capacity," so a deeply negative free cash flow can be a firm building its future or a firm unable to fund its own upkeep, and the headline number does not say which. Estimating the split — from the capex commentary, the capacity announcements, and the depreciation as a rough floor for maintenance — is a judgement the ratio requires but cannot make for you.

How it comes up. When profit rises but cash does not follow, a sharp analyst asks management to reconcile the two. The question sounds like this: "Profit grew 20% but operating cash flow was roughly flat, and CFO-to-PAT has now fallen three years running. Can you walk us through where the cash went, and why cash tax paid is so far below the P&L charge?" The analyst is holding the profit against the cash and asking for the bridge.

A good answer, verbatim-style.

"Fair challenge. The cash gap is almost entirely a working-capital build — we extended terms to win a large new distributor, which added about 25 days of receivables this year, and we're carrying more inventory ahead of the new launch. Both are deliberate and we expect the ratio to recover to around 1x next year as it stabilises. On tax, the gap is accelerated depreciation on the new plant, which reverses over time; here's the deferred-tax bridge."

That answer names where the cash went, ties it to specific decisions, quantifies it, and explains the tax gap with a concrete, reversing cause.

An evasive answer, verbatim-style.

"Cash flow can be lumpy quarter to quarter and we manage the business for long-term profit growth, which remains excellent. Working capital is well controlled and we're very comfortable with the quality of our earnings and our receivables."

Notice the moves. "Lumpy" explains a single quarter, not a three-year slide in CFO-to-PAT; "we manage for profit growth" sidesteps the cash question entirely; and "comfortable with the quality of our earnings" asserts exactly what the numbers are calling into doubt, with no bridge and no figures.

The follow-up nobody asks, and what its absence means. "Give us the five-year CFO-to-PAT, the split of this year's capex into maintenance and growth, and the deferred-tax movement that explains the cash-versus-book tax gap." That forces the profit-to-cash relationship onto hard multi-year numbers and separates investment from leakage. If the room lets "cash can be lumpy, earnings quality is excellent" stand without the five-year conversion and the tax bridge, either the conversion trend is ugly or the deferred tax is building for a reason management would rather not detail. Profit that management will not reconcile to cash is profit worth reconciling yourself.

1. Trusting profit without checking it against cash. Reported profit carries judgement; cash is harder to fake. A profit the operating cash flow never confirms is a claim, not a fact, and CFO-to-PAT is the check.

2. Reading CFO-to-PAT on a single year. One year is noisy — a working-capital swing or a timing difference can push it below one innocently. The signal is the multi-year trend, not any single reading.

3. Treating negative free cash flow as automatic weakness. Free cash flow driven negative by genuine growth capex is investment; free cash flow negative because ordinary operations cannot fund their own upkeep is trouble. Split maintenance from growth capex before judging.

4. Ignoring the cash tax cross-check. A persistent, widening gap between a high book tax charge and a low cash tax paid signals book profit outrunning taxable profit, with deferred tax building — a quiet earnings-quality flag most readers never look at.

5. Not asking why cash lagged profit. The ratio shows that cash lagged, not why. An honest working-capital build and a dishonest booking of uncollectable sales look identical; the reason, found in the receivables and their ageing, is what matters.

6. Judging cash conversion without the sector's cash shape. A CFO above profit is normal for a capital-heavy firm and a gap is alarming for an asset-light one; for a lender the measure does not apply at all. Know the natural cash shape before reading the gap.