Nisource (NI) Tax Rate (2009 - 2026)
Nisource's Tax Rate came in at 10.09% for Q3 2026, down 7.41 percentage points from 17.50% a year earlier and down 25.20 percentage points from the prior quarter.
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Analysis
Nisource (NI) Tax Rate (2009 - 2026) Analysis & Trends
Over the trailing twelve months to Sep 30, 2026, Nisource reported Tax Rate of 14.61%, down 2.70 percentage points year-over-year; for FY2025, it was 17.04%, up 0.19 percentage points from FY2024.
- Tax Rate carries a four-year change of -0.66 percentage points (FY2021 to FY2025).
- Going back by year, Tax Rate was 16.85% in FY2024 (-0.46 pp), 17.31% in FY2023 (-0.89 pp), 18.20% in FY2022 (+0.51 pp) and 17.69% in FY2021.
- The Q3 2026 figure represents the lowest quarterly Tax Rate since Q3 2023.
- Year-over-year, Tax Rate increased in four of the last eight quarters, with an average year-over-year change of +0.96 percentage points.
- The fastest year-over-year change in Tax Rate over five years came in Q2 2026 (a gain of 16.07 percentage points), and the weakest in Q4 2021 (a drop of 29.05 percentage points).
- Business Quant data shows NI's Tax Rate at 35.29% (Q2 2026), 13.67% (Q1 2026) and 16.36% (Q4 2025) in the three quarters before Q3 2026.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Enel Chile | 299.49 Bn | 296.88 Bn | - | - |
| 2 | Nextera Energy | 179.92 Bn | 166.66 Bn | - | 13.16% |
| 3 | Southern | 105.56 Bn | 96.61 Bn | 5.92 Bn | 13.60% |
| 4 | Duke Energy | 99.44 Bn | 95.69 Bn | 5.66 Bn | 12.26% |
| 5 | National Grid | 82.69 Bn | 64.32 Bn | - | - |
| 6 | American Electric Power | 68.52 Bn | 66.31 Bn | 4.75 Bn | 9.48% |
| 7 | Dominion Energy | 59.67 Bn | 57.66 Bn | - | 16.49% |
| 8 | Entergy | 52.06 Bn | 38.50 Bn | - | 22.76% |
| 9 | Sempra | 51.32 Bn | 50.45 Bn | 2.89 Bn | 22.09% |
| 10 | Nisource | 21.54 Bn | 21.23 Bn | 1.14 Bn | 10.09% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 10.09% |
| Jun 30, 2026 | 35.29% |
| Mar 31, 2026 | 13.67% |
| Dec 31, 2025 | 16.36% |
| Sep 30, 2025 | 17.50% |
| Jun 30, 2025 | 19.22% |
| Mar 31, 2025 | 16.87% |
| Dec 31, 2024 | 17.37% |
| Sep 30, 2024 | 19.00% |
| Jun 30, 2024 | 16.34% |
| Mar 31, 2024 | 16.27% |
| Dec 31, 2023 | 16.16% |
| Sep 30, 2023 | 3.66% |
| Jun 30, 2023 | 24.14% |
| Mar 31, 2023 | 20.33% |
| Dec 31, 2022 | 16.95% |
| Sep 30, 2022 | 17.97% |
| Jun 30, 2022 | 20.41% |
| Mar 31, 2022 | 18.62% |
| Dec 31, 2021 | 13.82% |
API Access
Nisource Tax Rate API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=tax-rate&ticker=NI&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "NI", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=tax-rate&ticker=NI&period=max&api_key=YOUR_API_KEY");
const data = await res.json();