NorthWestern Energy (NWE) Tax Rate (2023 - 2026)
NorthWestern Energy's Tax Rate was 12.18% in Q2 2026, down 1.56 percentage points from 13.74% a year earlier and down 5.68 percentage points from the prior quarter.
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Analysis
NorthWestern Energy (NWE) Tax Rate (2023 - 2026) Analysis & Trends
On a trailing twelve-month basis, NorthWestern Energy's Tax Rate was 2.92% through Jun 30, 2026, up 5.38 percentage points year-over-year; for FY2025, it came in at 3.45%, up 7.85 percentage points from FY2024.
- Tax Rate shows a four-year change of +1.65 percentage points (FY2021 to FY2025).
- In earlier years, Tax Rate was -4.40% in FY2024 (-8.14 pp), 3.74% in FY2023 (+4.07 pp), -0.33% in FY2022 (-2.13 pp) and 1.80% in FY2021.
- Quarterly Tax Rate has moved between -87.87% (Q4 2025) and 18.69% (Q3 2025) over five years.
- Compared with a year earlier, Tax Rate was higher in four of the last eight quarters, with an average year-over-year change of -7.70 percentage points.
- The best year-over-year quarter for Tax Rate over five years was Q3 2025 (a gain of 25.95 percentage points); the worst was Q4 2025 (a drop of 52.95 percentage points).
- Per Business Quant data, NWE's Tax Rate in the three quarters before Q2 2026 was 17.86% (Q1 2026), -87.87% (Q4 2025) and 18.69% (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Wisconsin Electric Power | 99,216.00 Bn | 99,215.99 Bn | 911.30 Mn | 14.89% |
| 2 | Enel Chile | 301.57 Bn | 301.57 Bn | 1.33 Bn | - |
| 3 | Nextera Energy | 180.93 Bn | 179.04 Bn | - | 13.16% |
| 4 | Southern | 109.04 Bn | 101.70 Bn | 7.31 Bn | 18.54% |
| 5 | Duke Energy | 100.59 Bn | 99.24 Bn | 6.37 Bn | 15.34% |
| 6 | National Grid | 86.94 Bn | 59.27 Bn | - | - |
| 7 | American Electric Power | 69.61 Bn | 68.67 Bn | 4.75 Bn | 9.48% |
| 8 | Entergy | 53.37 Bn | 42.94 Bn | - | 22.76% |
| 9 | Sempra | 51.29 Bn | 84.11 Bn | - | - |
| 10 | NorthWestern Energy | 5.22 Bn | 5.20 Bn | 316.48 Mn | 13.21% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 13.21% |
| Jun 30, 2026 | 12.18% |
| Mar 31, 2026 | 17.86% |
| Sep 30, 2025 | 18.69% |
| Jun 30, 2025 | 13.74% |
| Mar 31, 2025 | 16.50% |
| Jun 30, 2024 | 11.82% |
| Mar 31, 2024 | 13.70% |
| Sep 30, 2023 | 5.47% |
| Jun 30, 2023 | 10.09% |
| Mar 31, 2023 | 14.07% |
API Access
NorthWestern Energy 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=NWE&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "NWE", "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=NWE&period=max&api_key=YOUR_API_KEY");
const data = await res.json();