Atmos Energy (ATO) Tax Rate (2009 - 2026)
Atmos Energy's Tax Rate was 19.98% in fiscal Q3 2026 (quarter ended Jun 30, 2026), up 0.81 percentage points from 19.17% a year earlier but down 0.70 percentage points from the prior quarter.
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Analysis
Atmos Energy (ATO) Tax Rate (2009 - 2026) Analysis & Trends
On a trailing twelve-month basis, Atmos Energy's Tax Rate was 20.02% through Jun 30, 2026, up 1.32 percentage points year-over-year; for FY2025 (ended Sep 30, 2025), it was 18.90%, up 3.29 percentage points from FY2024.
- Tax Rate has now increased for three consecutive fiscal years, though with a five-year change of -0.57 percentage points (FY2020 to FY2025).
- In earlier fiscal years, Tax Rate was 15.61% in FY2024 (+4.23 pp), 11.38% in FY2023 (+2.28 pp), 9.10% in FY2022 (-9.67 pp) and 18.76% in FY2021 (-0.70 pp).
- Quarterly Tax Rate has moved between 5.86% (fiscal Q1 2022) and 20.68% (fiscal Q2 2026) over five years.
- Compared with a year earlier, Tax Rate has increased for 11 straight quarters, with an average year-over-year change of +2.21 percentage points over the last eight quarters.
- The best year-over-year quarter for Tax Rate over five years was fiscal Q3 2024 (a gain of 6.24 percentage points); the worst was fiscal Q1 2022 (a drop of 17.20 percentage points).
- Per Business Quant data, ATO's Tax Rate in the three fiscal quarters before Q3 2026 was 20.68% (Q2 2026), 19.98% (Q1 2026) and 17.94% (Q4 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 | Dte Energy | 25.14 Bn | 24.62 Bn | - | - |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 19.98% |
| Mar 31, 2026 | 20.68% |
| Dec 31, 2025 | 19.98% |
| Sep 30, 2025 | 17.94% |
| Jun 30, 2025 | 19.17% |
| Mar 31, 2025 | 19.49% |
| Dec 31, 2024 | 18.40% |
| Sep 30, 2024 | 15.94% |
| Jun 30, 2024 | 16.80% |
| Mar 31, 2024 | 15.66% |
| Dec 31, 2023 | 14.74% |
| Sep 30, 2023 | 13.65% |
| Jun 30, 2023 | 10.57% |
| Mar 31, 2023 | 11.18% |
| Dec 31, 2022 | 11.05% |
| Sep 30, 2022 | 14.83% |
| Jun 30, 2022 | 9.26% |
| Mar 31, 2022 | 10.08% |
| Dec 31, 2021 | 5.86% |
| Sep 30, 2021 | 18.17% |
API Access
Atmos 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=ATO&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "ATO", "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=ATO&period=max&api_key=YOUR_API_KEY");
const data = await res.json();