Effective Tax Rate in Quarterly Results: Why Profit Growth Can Differ From PBT Growth

When a company reports a quarter, the effective tax rate in results is one of the fastest checks we know. It shows what share of profit before tax actually went to tax. Move that share a few points and net profit can grow far faster, or far slower, than the business underneath it. Below we show how to work out the effective tax rate from an Indian results table, what the statutory rates are, why the two often don’t match, and how to use the number, with two real Q2 FY27 cases, HCLTech and Nestle India, and one simple hypothetical.

If results tables are new to you, our pillar on how to analyse quarterly results of a company is a good starting point. Tax comes right at the bottom of the profit and loss, so the lines above it matter too. Our guides to exceptional items in results and other income in quarterly results deal with two more things that can make profit growth look different from operating growth.

What is the effective tax rate in results?

Investopedia describes a company’s effective tax rate as the average rate at which its pre-tax profits are taxed. The statutory rate, by contrast, is the percentage the law sets. For a corporation the formula is short:

Effective tax rate (ETR) = Total tax expense ÷ Profit before tax × 100

An Indian results table hands you both numbers. “Profit before tax” comes after exceptional items, and “Tax expense” usually sits just under it, often in two lines, current tax and deferred tax. Add those two to get total tax expense, then divide by profit before tax.

Investopedia also flags something most results readers find out the hard way. You can use the effective tax rate as a profitability indicator, but working out why it swings from one year to the next can be tough. That’s the reason it belongs on your results checklist. You won’t always find the cause. You should always spot the change.

The statutory corporate tax rate in India

Most investors measure against the corporate tax changes the government announced in September 2019. The Press Information Bureau release of 20 September 2019 says the Taxation Laws (Amendment) Ordinance 2019 introduced these options from FY 2019-20:

• Domestic companies: an option to pay income tax at 22%, on the condition that they do not claim any exemption or incentive. The effective rate including surcharge and cess was put at 25.17%, and such companies do not have to pay Minimum Alternate Tax.
• New domestic manufacturing companies: companies incorporated on or after 1 October 2019 making fresh investment in manufacturing could opt for 15%, provided they claimed no exemption or incentive and began production on or before 31 March 2023. Their effective rate including surcharge and cess was put at 17.01%.
• Companies that do not opt in: those that keep claiming tax exemptions or incentives continue to pay tax at the earlier, pre-amended rate, and can switch to the concessional regime once their tax holiday or exemption period ends.

So an Indian company reporting an effective tax rate of around 25% is roughly where the 2019 concessional regime would put it. A rate far below that, or far above it, should make you ask why. Tax law does change, so check the current rules or the company’s own notes before you decide which regime a company is on. The results table usually won’t tell you.

Net profit growth is only as good as the tax rate behind it. If the tax rate fell, part of the profit growth came from the tax line, not from the business.

Current tax vs deferred tax

The tax expense in a results statement is an accounting figure. It isn’t just the cash the company handed to the tax department that quarter, which is why you’ll usually see it split in two:

• Current tax is the tax charged on the period’s taxable income.
• Deferred tax captures timing differences between accounting profit and taxable profit. Investopedia’s explainer on deferred tax liability describes it as a future tax obligation arising from temporary differences between accounting and tax reporting, with different depreciation methods for tax and accounting as a common example.

Deferred tax can be a charge, which adds to tax expense, or a credit, which reduces it. A big deferred tax credit can pull the effective tax rate down for a quarter without the company’s real tax position changing over time. So check which of the two lines actually moved.

HCLTech in Q2 FY27: net profit outran PBT

HCLTech’s Q2 FY27 investor release carries a consolidated income statement in ₹ crore, with lines for EBIT, foreign exchange gains or losses, other income, “Provision for Tax” and net income. Add EBIT, the foreign exchange line and other income and you get profit before tax. The cash flow summary in the same release confirms profit before tax of ₹6,467 crore for the September 2026 quarter, which matches.

Now look at year-on-year growth, the September 2026 quarter against the September 2025 quarter:

• Profit before tax rose from ₹5,702 crore to ₹6,467 crore, an increase of about 13.4%.
• Net income rose from ₹4,235 crore to ₹5,132 crore, an increase of about 21.2%.

That gap of about eight percentage points sits in the tax line. The effective tax rate dropped from about 25.7% to about 20.6%, and the release shows the tax provision going from 4.6% of revenue to 3.7%.

There’s an easy way to measure how much of the profit growth came from tax. Suppose HCLTech had paid the year-ago effective rate of about 25.7% on its Q2 FY27 profit before tax of ₹6,467 crore. Tax would have been about ₹1,663 crore, and net income about ₹4,804 crore. That’s growth of about 13.4%, the same as profit before tax. Put another way, roughly ₹328 crore of the quarter’s reported net income comes down to the lower tax rate versus a year earlier. (These are our own calculations from the release, and we’ve ignored the small non-controlling interest line.)

The income statement in the release doesn’t say why the tax provision fell, and that’s normal. For answers you go to the notes to the financial results and the earnings call. In HCLTech’s October 12, 2026 earnings call transcript filed with NSE, Chief Financial Officer Shiv Walia talked about a different tax matter. He said a tax payment tied to a bilateral advance pricing agreement, which he described as a government-to-government transfer pricing agreement, was one of two one-time items that hurt trailing twelve-month free cash flow conversion. That’s a cash tax item. It doesn’t explain the lower quarterly provision, but it’s a good reminder that cash taxes and the tax expense in the profit and loss can be quite different. The release’s cash flow summary shows income taxes paid, net of refunds, of ₹1,943 crore in the September 2026 quarter, while the income statement carries a tax provision of ₹1,335 crore.

Nestle India in Q2 FY27: the rate barely moved

Nestle India makes a useful contrast. Its standalone results for the quarter ended 30 September 2026, filed with BSE, are in ₹ million and split tax into current and deferred tax.

Here the effective tax rate hardly changed, going from about 26.8% to about 26.6%. So profit for the period rose about 36.3% year on year, almost exactly matching profit before tax, which rose about 36.1%. The company’s press release in the same filing gives quarterly profit after tax of ₹1,026.8 crore, up 36.3%, which ties to ₹10,267.7 million. There’s a small deferred tax credit of ₹40.9 million in the latest quarter, against a deferred tax charge of ₹101.3 million a year earlier. It pushed the rate down a touch, but not enough to change anything.

Set the two side by side and the point makes itself. Nestle’s profit growth came from the business. At HCLTech, a good chunk of the year-on-year net income growth came from a lower tax rate, so the 13.4% rise in profit before tax is the better read on how the business actually grew. If you want to know why operating profit can also move faster than revenue, see our explainer on operating leverage in quarterly results.

The same idea with simple made-up numbers

To strip out company-specific noise, take a hypothetical Company A. The figures are purely illustrative.

• Last year’s quarter: profit before tax ₹100 crore, effective tax rate 25%, so tax ₹25 crore and net profit ₹75 crore.
• This year, scenario 1 (tax rate falls): profit before tax ₹110 crore, up 10%. Effective tax rate 18%, so tax ₹19.8 crore and net profit ₹90.2 crore. Net profit growth: about 20.3%, double the growth in profit before tax.
• This year, scenario 2 (tax rate rises): profit before tax ₹110 crore, up 10%. Effective tax rate 30%, so tax ₹33 crore and net profit ₹77 crore. Net profit growth: about 2.7%, far below the growth in profit before tax.

The business did exactly the same in both scenarios. Only the tax rate moved, and still the headline profit growth ranged from about 3% to about 20%. So a headline saying “profit up 20%” can hide a business that grew 10%, and “profit up 3%” can hide one that did perfectly well.

When profit before tax and net profit grow at very different speeds, the effective tax rate is usually the first place to look.

Adjusting profit for an unusual tax rate

When a quarter’s tax rate looks odd, a quick way to judge underlying earnings is to rework profit at a “normal” rate:

1. Find a normal rate. Use the company’s average effective tax rate over the past four quarters or the last full year, or its own guidance if it gives one.
2. Apply it to profit before tax. Normalised net profit = profit before tax × (1 − normal rate).
3. Compare growth. Calculate year-on-year growth on the normalised figure and compare it with reported growth.
4. Do the same for EPS. Divide normalised net profit by the share count to get a normalised EPS if you use valuation multiples such as the price-to-earnings ratio.

For HCLTech, using the year-ago rate gave normalised net income of about ₹4,804 crore and growth of about 13.4%, compared with reported growth of about 21.2%. Neither one is “right”. They answer different questions. Reported profit is what shareholders earned this quarter. Normalised profit is what the business is likely to earn if the tax rate goes back to its usual level.

What to ask when the rate shifts

The results table itself rarely explains a tax movement, so take a short list of questions to the notes, the investor presentation and the earnings call:

• Did current tax or deferred tax drive the change?
• Was there a one-time tax credit, a refund, a settlement or a reversal of an earlier tax provision?
• Has the company moved between tax regimes, for example after an exemption period ended?
• Did the mix of profit shift between businesses or locations taxed at different rates?
• Are exceptional items involved? Check whether the tax on an exceptional gain or loss is distorting the overall rate.
• Does management guide to a tax rate for the full year, and is this quarter in line with it?
• How do cash taxes paid in the cash flow statement compare with the tax expense in the profit and loss?

If the answers point to a one-off, value the company on normalised profit. If they point to something lasting, like a permanent move to a lower regime, the new rate may be the one to carry forward.

Mistakes we see with the effective tax rate

• Using profit before exceptional items as the base. The tax expense line relates to profit before tax after exceptional items. Mixing the two gives a wrong rate.
• Ignoring deferred tax. Using current tax alone can make the rate look higher or lower than the total tax expense implies.
• Reading one quarter in isolation. Quarterly rates can be noisy. Compare against the previous quarter, the same quarter last year and the full-year rate.
• Mixing standalone and consolidated figures. Take profit before tax and tax expense from the same statement.
• Treating a low rate as a permanent gift. A temporarily low rate inflates earnings for that period only. Valuing the stock on that profit can overstate what it is worth.

Common questions on tax in results

How do I calculate the effective tax rate from quarterly results?

Add current tax and deferred tax for total tax expense, divide by profit before tax and multiply by 100. Both numbers are in the standard results table, usually just under the exceptional items line.

What is a normal effective tax rate for Indian companies?

There isn’t one. According to the PIB release, the 2019 concessional regime implied about 25.17% including surcharge and cess for companies that opted in, but companies still claiming exemptions under the older rates can report very different figures. Compare a company with its own history first.

Why did net profit grow faster than profit before tax?

Most often because the effective tax rate fell, as it did at HCLTech above. Other lines below profit before tax, such as the non-controlling interest line in consolidated results, can play a part as well, so check those too.

Is a falling tax rate good news?

It lifts profit for that period. Whether that’s good news depends on whether it lasts. A permanent change helps future earnings and a one-off doesn’t, so read the notes and the call before you decide.

What to take away

The effective tax rate in results needs just two numbers, and it can change how you read a whole quarter. When it holds steady, as it did at Nestle India in Q2 FY27, profit before tax and net profit tell the same story. When it moves, as at HCLTech, net profit growth and business growth come apart, and you need to find out why. Build the habit: work out the rate for the latest quarter, the previous quarter and the same quarter last year. If it has shifted, compare growth in profit before tax with growth in net profit before you trust the headline.

This article is for education only and is not investment advice. Company A figures are hypothetical examples; HCLTech and Nestle India figures are taken from their published Q2 FY27 results, and the tax rates and growth figures are our own calculations from them. Consult a SEBI-registered investment adviser before making investment decisions.