American Electric Power (AEP) Tax Rate (2009 - 2026)
American Electric Power's Tax Rate was 9.48% in Q3 2026, down 2.95 percentage points from 12.43% a year earlier but up 2.73 percentage points from the prior quarter.
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Analysis
American Electric Power (AEP) Tax Rate (2009 - 2026) Analysis & Trends
On a trailing twelve-month basis, American Electric Power's Tax Rate was 9.08% through Sep 30, 2026, up 7.16 percentage points year-over-year; for FY2025, it was 3.46%.
- Tax Rate shows a five-year change of +1.58 percentage points (FY2020 to FY2025).
- In earlier years, Tax Rate was 2.49% in FY2023 (+2.27 pp), 0.22% in FY2022 (-4.38 pp) and 4.60% in FY2021 (+2.71 pp).
- Quarterly Tax Rate has moved between 2.07% (Q2 2024) and 16.57% (Q4 2025) over five years.
- Compared with a year earlier, Tax Rate was higher in two of the last four quarters, with an average year-over-year change of +1.13 percentage points.
- The best year-over-year quarter for Tax Rate over five years was Q3 2025 (a gain of 8.61 percentage points); the worst was Q1 2026 (a drop of 9.29 percentage points).
- Per Business Quant data, AEP's Tax Rate in the three quarters before Q3 2026 was 6.75% (Q2 2026), 4.77% (Q1 2026) and 16.57% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Nextera Energy | 182.89 Bn | 169.63 Bn | - | 13.16% |
| 2 | Southern | 104.75 Bn | 95.81 Bn | 5.92 Bn | 13.60% |
| 3 | Duke Energy | 99.94 Bn | 96.19 Bn | 5.66 Bn | 12.26% |
| 4 | National Grid | 82.76 Bn | 55.05 Bn | - | - |
| 5 | American Electric Power | 68.91 Bn | 66.71 Bn | 4.75 Bn | 9.48% |
| 6 | Dominion Energy | 60.71 Bn | 58.70 Bn | - | 16.49% |
| 7 | Entergy | 52.12 Bn | 38.56 Bn | - | 22.76% |
| 8 | Sempra | 51.42 Bn | 50.54 Bn | 2.89 Bn | 22.09% |
| 9 | Xcel Energy | 50.36 Bn | 43.84 Bn | - | 6.71% |
| 10 | Exelon | 47.13 Bn | 42.44 Bn | - | 20.00% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 9.48% |
| Jun 30, 2026 | 6.75% |
| Mar 31, 2026 | 4.77% |
| Dec 31, 2025 | 16.53% |
| Sep 30, 2025 | 12.41% |
| Mar 31, 2025 | 14.06% |
| Dec 31, 2024 | 8.41% |
| Sep 30, 2024 | 3.82% |
| Jun 30, 2024 | 2.07% |
| Sep 30, 2023 | 6.41% |
| Jun 30, 2023 | 5.44% |
| Mar 31, 2023 | 2.66% |
| Jun 30, 2022 | 7.30% |
| Mar 31, 2022 | 6.99% |
| Sep 30, 2021 | 8.21% |
| Jun 30, 2021 | 10.12% |
| Mar 31, 2021 | 9.01% |
| Jun 30, 2020 | 2.48% |
| Mar 31, 2020 | 9.01% |
| Sep 30, 2019 | 5.35% |
API Access
American Electric Power 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=AEP&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "AEP", "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=AEP&period=max&api_key=YOUR_API_KEY");
const data = await res.json();