National Grid (CHIX:NGL) Tax Rate %: 21.78% (As of Mar. 2026)

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CHIX:NGL National Grid PLC CHIX:NGL
73 GF Score
Price £12.33
GF Value £7.47
Valuation Significantly Overvalued
! 6 Warning Signs
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What is National Grid Tax Rate %?

National Grid CHIX:NGL -1.00% 73 Tax Rate % is 21.78% as of Mar. 2026. GuruFocus rates CHIX:NGL with a GF Score™ of 73/100 and a GF Value™ of £7.47 (Significantly Overvalued). The stock has 6 warning signs investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. National Grid's Tax Expense for the six months ended in Mar. 2026 was £731 Mil. National Grid's Pre-Tax Income for the six months ended in Mar. 2026 was £3,356 Mil. Therefore, National Grid's Tax Rate % for the quarter that ended in Mar. 2026 was 21.78%.

National Grid Tax Rate % Related Terms

National Grid Tax Rate % Historical Data

* Premium members only.

The historical data trend for National Grid'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.

National Grid Tax Rate % Chart

National Grid Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Tax Rate %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 36.56 24.40 27.26 22.49 22.45

National Grid Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 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 31.25 16.37 23.90 25.18 21.78
CHIX:NGL
73GF Score
National Grid PLC CHIX:NGL
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
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National Grid Tax Rate % Calculation

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

National Grid's Tax Rate % for the fiscal year that ended in Mar. 2026 is calculated as

Tax Rate %=Tax Expense (A: Mar. 2026 )/Pre-Tax Income (A: Mar. 2026 )
=939/4182
=22.45 %

National Grid'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 )
=731/3356
=21.78 %

* 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 21.78% mean?
National Grid (CHIX:NGL) has a Tax Rate % of 21.78% as of Mar. 2026.
Is National Grid's Tax Rate % too high?
National Grid's current Tax Rate % is 21.78%. Overall, National Grid has a GF Score™ of 73/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Grid's Tax Rate % compare to NEE and SO?
National Grid's Tax Rate % of 21.78% can be compared against companies in the Utilities - Regulated 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 - Regulated company?
A good Tax Rate % depends on the Utilities - Regulated 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. National Grid's current Tax Rate % is 21.78%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Grid stock overvalued right now?
Based on GuruFocus' analysis, National Grid (CHIX:NGL) is currently considered Significantly Overvalued. The stock's GF Value™ is £7.47, compared to a current price of £12.33 — trading 65.1% above its estimated fair value. The current Tax Rate % is 21.78%. National Grid's overall GF Score™ is 73/100 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 National Grid (CHIX:NGL), the current Tax Rate % is 21.78% 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 National Grid (CHIX:NGL) Overvalued in 2026?

Based on GuruFocus' analysis, National Grid stock appears to be overvalued. The current stock price of £12.33 is trading 65.1% above its estimated GF Value™ of £7.47. GuruFocus considers National Grid to be Significantly Overvalued.

Key valuation signals for CHIX:NGL:

  • Tax Rate %: 21.78%
  • GF Value™: £7.47 vs. price of £12.33 (65.1% above fair value)
  • GF Score™: 73/100 with 6 warning signs

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

National Grid Business Description

Address 1-3 Strand, London, GBR, WC2N 5EH
National Grid owns and operates the electric transmission system in England and Wales. It sold the bulk of its UK gas transmission business in fiscal 2023 to fund the acquisition of PPL's UK power distribution assets. In the Northeastern United States, it serves electricity and gas customers combined in three states. It also owns regulated transmission electricity networks in the United States, metering services and merchant transmission lines in the UK.
73GF Score

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

£12.33
Price
£7.47
GF Value