California Water Service (CWT) Tax Rate (2009 - 2026)
California Water Service (CWT) reported Tax Rate of 31.12% for Q2 2026, up 5.88 percentage points from 25.24% a year earlier and up 131.81 percentage points from the prior quarter.
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Analysis
California Water Service (CWT) Tax Rate (2009 - 2026) Analysis & Trends
Over the twelve months ended Jun 30, 2026, California Water Service's Tax Rate came in at 22.83%, down 1.95 percentage points year-over-year; for FY2025, it was 19.11%, down 6.74 percentage points from FY2024.
- Tax Rate has a five-year change of +5.99 percentage points (FY2020 to FY2025).
- By year, Tax Rate came in at 25.85% in FY2024 (+53.73 pp), -27.88% in FY2023 (-35.75 pp), 7.87% in FY2022 (+2.87 pp) and 5.00% in FY2021 (-8.11 pp).
- The Q2 2026 figure ranks as the highest quarterly Tax Rate since Q1 2025.
- Year over year, Tax Rate gained in four of the last eight quarters, with an average year-over-year change of -17.86 percentage points.
- The high point for year-over-year Tax Rate in five years was Q2 2023 (a gain of 61.77 percentage points); the low point was Q1 2026 (a drop of 147.60 percentage points).
- Per Business Quant data, the three quarters before Q2 2026 came in at -100.69% (Q1 2026), -67.15% (Q4 2025) and 24.00% (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Enel Chile | 293.96 Bn | 293.96 Bn | 890.00 Mn | - |
| 2 | National Grid | 78.23 Bn | 59.76 Bn | - | - |
| 3 | Dominion Energy | 53.03 Bn | 55.71 Bn | - | 16.49% |
| 4 | Xcel Energy | 43.33 Bn | 38.23 Bn | - | - |
| 5 | Wec Energy | 33.06 Bn | 33.29 Bn | 1.51 Bn | 8.23% |
| 6 | Ameren | 27.51 Bn | 27.60 Bn | - | 14.13% |
| 7 | Fortis | 26.94 Bn | 27.43 Bn | 1.60 Bn | 14.18% |
| 8 | Atmos Energy | 26.53 Bn | 25.30 Bn | 870.85 Mn | 19.98% |
| 9 | American Water Works Company | 25.62 Bn | 25.03 Bn | - | 22.22% |
| 10 | California Water Service | 2.82 Bn | 2.60 Bn | - | 31.12% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 31.12% |
| Sep 30, 2025 | 24.00% |
| Jun 30, 2025 | 25.24% |
| Mar 31, 2025 | 46.92% |
| Sep 30, 2024 | 33.27% |
| Jun 30, 2024 | 29.99% |
| Mar 31, 2024 | 27.22% |
| Sep 30, 2023 | 16.71% |
| Jun 30, 2023 | 73.23% |
| Sep 30, 2022 | 11.77% |
| Jun 30, 2022 | 11.46% |
| Sep 30, 2021 | 3.22% |
| Jun 30, 2021 | 8.00% |
| Dec 31, 2020 | 10.15% |
| Sep 30, 2020 | 14.80% |
| Jun 30, 2020 | 163.86% |
| Dec 31, 2019 | 35.15% |
| Sep 30, 2019 | 28.82% |
| Jun 30, 2019 | 32.41% |
| Dec 31, 2018 | 4.78% |
API Access
California Water Service 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=CWT&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "CWT", "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=CWT&period=max&api_key=YOUR_API_KEY");
const data = await res.json();