Tata Power margin drops as costs outpace revenue growth
Sequential revenue rose +6.82%, but expenses grew +12.92%; the stock's first-day fall was larger than its usual post-results move.
Filed 12 May 2026, 16:44 IST · after market close · Tata Power Company Ltd (TATAPOWER)
Key takeaways
- Consolidated operating margin fell 4.46 percentage points sequentially to 17.44% as expenses grew +12.92% against revenue growth of +6.82%.
- Net profit rose +8.38% year on year to Rs 1,415.52 cr even as profit before tax fell -46.24%, with other income contributing 96.78% of pre-tax profit.
- The stock fell -3.33% on the first trading day after the results, versus a 1.76% median absolute move across its last eight result reactions.
Price around the results
Sequential revenue growth did not translate into operating profit
Tata Power's consolidated revenue grew +6.82% sequentially, but operating profit fell -14.92% because expenses increased faster than sales. Year on year, revenue declined -12.84% and operating profit fell -19.92%, taking operating margin down 1.54 percentage points to 17.44%.
Cost growth and tax pressure weakened earnings quality
Sequential expense growth of +12.92% was nearly twice revenue growth, narrowing operating margin by 4.46 percentage points; this was the sharpest margin reversal in the recent quarterly trend after 21.90% in Q3FY26. Interest expense fell -5.02% sequentially, but depreciation rose +5.99% and the tax rate increased 17.44 percentage points to 51.88%. Other income made up 96.78% of profit before tax, while the year-on-year tax-rate increase was 30.41 percentage points.
Margin now sits well below reported utility peers
The 17.44% operating margin was 17.75 percentage points below the 35.19% median among 17 Utilities peers that had reported the same quarter. Tata Power ranked second from the bottom in that comparison. The quarterly series shows margin moving from 22.95% in Q1FY26 to 21.24% in Q2FY26, 21.90% in Q3FY26 and 17.44% in Q4FY26.
Management highlighted a large transmission and renewables pipeline
Management said India is anticipated to require Rs 9.2 trillion of transmission capex between FY25 and FY32E. The company said it had 1,612 MW of hybrid capacity, 434 MW of wind capacity and 2,447 MW of complex and FDRE capacity under construction, with hybrid and FDRE projects expected to be commissioned from FY2027 to FY2028. Management also said Tata Power crossed a cumulative 10 GW EPC execution milestone during the quarter.
The market reaction was weaker than Tata Power's usual result-day move
The stock fell -3.33% on the first trading day after the filing, with an opening gap of -6.55% and trading volume at 2.27 times its reference level. That decline was larger than the 1.76% median absolute move across the last eight results, during which the stock rose three times and fell five times. The five-day return was -1.17%, although the reaction overlaps a corporate action and is not a clean results-only read.
Q4FY26 at a glance
Consolidated figures as filed with NSE — cross-checked against an independent source.
| Line item | Q4FY26 | Q3FY26 | QoQ | YoY |
|---|---|---|---|---|
| Revenue | ₹14,900 cr | ₹13,948 cr | +6.82% | -12.84% |
| Other income | ₹712 cr | ₹519 cr | +37.01% | +57.54% |
| Expenses | ₹12,301 cr | ₹10,894 cr | +12.92% | -11.19% |
| Operating profit | ₹2,599 cr | ₹3,055 cr | -14.92% | -19.92% |
| Operating margin (%) | 17.44% | 21.90% | — | — |
| Interest | ₹1,295 cr | ₹1,364 cr | -5.02% | +6.76% |
| Depreciation | ₹1,280 cr | ₹1,208 cr | +5.99% | +14.69% |
| Profit before tax | ₹735 cr | ₹1,003 cr | -26.67% | -46.24% |
| Tax | ₹381 cr | ₹345 cr | +10.48% | +29.93% |
| Net profit | ₹1,416 cr | ₹1,194 cr | +18.52% | +8.38% |
| EPS (₹) | ₹3.12 | ₹2.41 | +29.46% | -4.29% |
Operating margin of 17.44% compares with a Utilities sector median of 35.19% across 17 peers that have reported Q4FY26.
How the stock reacted
| Window | Stock | vs NIFTY |
|---|---|---|
| Results day | -3.33% | -3.48% |
| Next session | -2.52% | — |
| 5 sessions | -1.17% | -2.37% |
| 15 sessions | -1.82% | — |
| 30 sessions | -7.04% | — |
Volume on the results session was 2.27× its 20-day average.
What management said
From the company’s own investor presentation. Each point is checked against the source document before it appears here.
Guidance & outlook
- India is anticipated to require ₹9.2 trillion of transmission capex between FY25 and FY32E.
- Tata Power has a pipeline of hybrid and FDRE projects with expected commissioning from FY2027 to FY2028.
Expansion
- Tata Power has 1,612 MW of hybrid capacity under construction.
- Tata Power has 434 MW of wind capacity under construction.
- Tata Power has 2,447 MW of complex and FDRE capacity under construction.
- Jejuri Hinjewadi Power Transmission Limited is scheduled for commissioning in FY2028 with 226 circuit kilometres.
- Gopalpur Transmission Limited is scheduled for commissioning in FY2028 with 377 circuit kilometres.
- Paradeep Transmission Limited is scheduled for commissioning in FY2028 with 384 circuit kilometres.
New initiatives
- Tata Power completed its cumulative 10 GW EPC execution milestone during the quarter.
What to watch
- Whether operating margin moves back above 17.44% after the 4.46-percentage-point sequential decline.
- Whether expenses grow more slowly than the +12.92% sequential pace.
- Progress on the 1,612 MW hybrid, 434 MW wind and 2,447 MW complex/FDRE capacities under construction.