TransAlta (STU:TZ1) Tax Rate %: 26.09% (As of Mar. 2026)


STU:TZ1 TransAlta Corp STU:TZ1
55 GF Score
Price €12.40
GF Value €6.22
Valuation Significantly Overvalued
! 6 Warning Signs
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What is TransAlta Tax Rate %?

TransAlta STU:TZ1 55 Tax Rate % is 26.09% as of Mar. 2026. GuruFocus rates STU:TZ1 with a GF Score™ of 55/100 and a GF Value™ of €6.22 (Significantly Overvalued). The stock has 6 warning signs investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. TransAlta's Tax Expense for the three months ended in Mar. 2026 was €4 Mil. TransAlta's Pre-Tax Income for the three months ended in Mar. 2026 was €15 Mil. Therefore, TransAlta's Tax Rate % for the quarter that ended in Mar. 2026 was 26.09%.

TransAlta Tax Rate % Related Terms

TransAlta Tax Rate % Historical Data

* Premium members only.

The historical data trend for TransAlta's Tax Rate % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

TransAlta Tax Rate % Chart

TransAlta Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Rate %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -11.84 54.39 9.55 25.08 -12.06

TransAlta Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Tax Rate % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 14.28 -11.58 -1.89 4.76 26.09
STU:TZ1
55GF Score
TransAlta Corp STU:TZ1
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
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TransAlta Tax Rate % Calculation

Tax Rate % is the ratio of tax expense divided by pretax income, usually presented in percent.

TransAlta's Tax Rate % for the fiscal year that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (A: Dec. 2025 )/Pre-Tax Income (A: Dec. 2025 )
=10.524/-87.288
=-12.06 %

TransAlta's Tax Rate % for the quarter that ended in Mar. 2026 is calculated as

Tax Rate %=Tax Expense (Q: Mar. 2026 )/Pre-Tax Income (Q: Mar. 2026 )
=3.783/14.501
=26.09 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Tax Rate % →
What does a Tax Rate % of 26.09% mean?
TransAlta (STU:TZ1) has a Tax Rate % of 26.09% as of Mar. 2026.
Is TransAlta's Tax Rate % too high?
TransAlta's current Tax Rate % is 26.09%. Overall, TransAlta has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TransAlta's Tax Rate % compare to CEG and VST?
TransAlta's Tax Rate % of 26.09% can be compared against companies in the Utilities - Independent Power Producers industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Tax Rate % for an Utilities - Independent Power Producers company?
A good Tax Rate % depends on the Utilities - Independent Power Producers industry context. However, Tax Rate % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Tax Rate % mean?
A high Tax Rate % can signal that a stock is expensive relative to its fundamentals. TransAlta's current Tax Rate % is 26.09%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TransAlta stock overvalued right now?
Based on GuruFocus' analysis, TransAlta (STU:TZ1) is currently considered Significantly Overvalued. The stock's GF Value™ is €6.22, compared to a current price of €12.40 — trading 99.4% above its estimated fair value. The current Tax Rate % is 26.09%. TransAlta's overall GF Score™ is 55/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Rate % calculated?
Tax Rate % is calculated from a company's financial statements. For TransAlta (STU:TZ1), the current Tax Rate % is 26.09% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is TransAlta (STU:TZ1) Overvalued in 2026?

Based on GuruFocus' analysis, TransAlta stock appears to be overvalued. The current stock price of €12.40 is trading 99.4% above its estimated GF Value™ of €6.22. GuruFocus considers TransAlta to be Significantly Overvalued.

Key valuation signals for STU:TZ1:

  • Tax Rate %: 26.09%
  • GF Value™: €6.22 vs. price of €12.40 (99.4% above fair value)
  • GF Score™: 55/100 with 6 warning signs

No single metric tells the full story. See the STU:TZ1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

TransAlta Business Description

Address 1100 1st Street SE, TransAlta Place, Suite 1400, Calgary, AB, CAN, T2G 1B1
TransAlta Corp is an independent power producer based in Alberta, Canada. The company operates a diverse electrical power generation assets in Canada, the United States, and Western Australia. The company has reportable segments namely, Hydro, Wind & Solar, Gas, Energy Transition segment and Corporate Segment. The company generates the majority of its revenue from the gas segment.
55GF Score

Get the complete analysis for STU:TZ1

Tax Rate % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€12.40
Price
€6.22
GF Value