Hydro One Ltd (HRNNF) Tax Rate (2017 - 2026)
Hydro One's Tax Rate was 15.58% in the quarter ended Jun 30, 2026, down 0.07 percentage points from 15.64% a year earlier but up 6.15 percentage points from the prior quarter.
Hydro One Ltd (HRNNF) Tax Rate (2017 - 2026) Analysis & Trends
On a trailing twelve-month basis, Hydro One's Tax Rate was 12.29% through Jun 30, 2026, down 1.47 percentage points year-over-year; for the year ended Dec 31, 2025, it came in at 13.97%, up 0.52 percentage points from the prior year.
- Tax Rate shows a five-year change of +66.94 percentage points (years ended Dec 2020 to Dec 2025).
- In earlier years, Tax Rate was 13.45% in the year ended Dec 31, 2024 (+3.78 pp), 9.66% in the year ended Dec 31, 2023 (-11.73 pp), 21.40% in the year ended Dec 31, 2022 (+10.35 pp) and 11.04% in the year ended Dec 31, 2021 (+64.01 pp).
- Quarterly Tax Rate has moved between 3.79% (the quarter ended Dec 31, 2023) and 19.70% (the quarter ended Mar 31, 2022) over five years.
- Compared with a year earlier, Tax Rate was higher in five of the last eight quarters, with an average year-over-year change of +2.09 percentage points.
- The best year-over-year quarter for Tax Rate over five years was the quarter ended Mar 31, 2022 (a gain of 13.39 percentage points); the worst was the quarter ended Sep 30, 2023 (a drop of 12.12 percentage points).
- Per Business Quant data, HRNNF's Tax Rate in the three quarters before the quarter ended Jun 30, 2026 was 9.43% (quarter ended Mar 31, 2026), 11.36% (quarter ended Dec 31, 2025) and 12.37% (quarter ended Sep 30, 2025).
Peer Comparison
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 15.58% |
| Mar 31, 2026 | 9.43% |
| Dec 31, 2025 | 11.36% |
| Sep 30, 2025 | 12.37% |
| Jun 30, 2025 | 15.64% |
| Mar 31, 2025 | 15.85% |
| Dec 31, 2024 | 7.80% |
| Sep 30, 2024 | 13.02% |
| Jun 30, 2024 | 11.20% |
| Mar 31, 2024 | 10.32% |
| Sep 30, 2023 | 6.68% |
| Jun 30, 2023 | 13.66% |
| Mar 31, 2023 | 13.22% |
| Sep 30, 2022 | 18.80% |
| Jun 30, 2022 | 15.32% |
| Mar 31, 2022 | 15.55% |
| Dec 31, 2021 | 16.22% |
| Sep 30, 2021 | 14.46% |
| Jun 30, 2021 | 8.64% |
| Mar 31, 2021 | 6.31% |
Hydro One Ltd 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=HRNNF&period=max&api_key=YOUR_API_KEY
import requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "HRNNF", "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=HRNNF&period=max&api_key=YOUR_API_KEY");
const data = await res.json();