WAT (Waters) Tax Rate %: 18.18% (As of Mar. 2026)

What is Waters Tax Rate %?

Waters WAT -0.19% 94 Tax Rate % is 18.18% as of Mar. 2026. GuruFocus rates WAT with a GF Score™ of 94/100 and a GF Value™ of $425.48 (Modestly Undervalued). The stock has 7 warning signs investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. Waters's Tax Expense for the three months ended in Mar. 2026 was $-16 Mil. Waters's Pre-Tax Income for the three months ended in Mar. 2026 was $-88 Mil. Therefore, Waters's Tax Rate % for the quarter that ended in Mar. 2026 was 18.18%.

Waters Tax Rate % Related Terms

Waters Tax Rate % Historical Data

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The historical data trend for Waters'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.

Waters Tax Rate % Chart

Waters Annual Data

Trend

Dec16

Dec17

Dec18

Dec19

Dec20

Dec21

Dec22

Dec23

Dec24

Dec25

Tax Rate %

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14.06

15.53

12.77

15.50

14.87

Waters 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															15.38	17.21	12.46	14.75	18.18

94GF Score

Waters Corp WAT

Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.

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Waters Tax Rate % Calculation

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

Waters'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 )
	=	112.249	/	754.878
	=	14.87 %

Waters'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 )
	=	-16	/	-88
	=	18.18 %

Frequently Asked Questions Learn more about Tax Rate % →

What does a Tax Rate % of 18.18% mean?

Waters (WAT) has a Tax Rate % of 18.18% as of Mar. 2026.

Is Waters' Tax Rate % too high?

Waters' current Tax Rate % is 18.18%. Overall, Waters has a GF Score™ of 94/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.

How does Waters' Tax Rate % compare to NTRA and A?

Waters' Tax Rate % of 18.18% can be compared against companies in the Medical Diagnostics & Research 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 a Medical Diagnostics & Research company?

A good Tax Rate % depends on the Medical Diagnostics & Research 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. Waters's current Tax Rate % is 18.18%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.

Is Waters stock overvalued right now?

Based on GuruFocus' analysis, Waters (WAT) is currently considered Modestly Undervalued. The stock's GF Value™ is $425.48, compared to a current price of $376.43 — trading 11.5% below its estimated fair value. The current Tax Rate % is 18.18%. Waters' overall GF Score™ is 94/100 with 7 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 Waters (WAT), the current Tax Rate % is 18.18% 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 Waters (WAT) Overvalued in 2026?

Based on GuruFocus' analysis, Waters stock appears to be undervalued. The current stock price of $376.43 is trading 11.5% below its estimated GF Value™ of $425.48. GuruFocus considers Waters to be Modestly Undervalued.

Key valuation signals for WAT:

Tax Rate %: 18.18%
GF Value™: $425.48 vs. price of $376.43 (11.5% below fair value)
GF Score™: 94/100 with 7 warning signs

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

Waters Business Description

Industry Healthcare Medical Diagnostics & Research

Comparable Companies NTRA A IQV IDXX ILMN MTD DGX LH GH MEDP TMO DHR SHSE:603259 XSWX:LONN XPAR:ERF ICLR RVTY CRL XPAR:BIM HKSE:02268

Other Exchanges WAT:Mexico 1WAT:Italy 0LTI:UK WAZ:Germany WATC34:Brazil

Address 34 Maple Street, Milford, MA, USA, 01757

Website https://www.waters.com

Waters sells liquid chromatography, mass spectrometry, and thermal analysis tools. These analytical instruments provide essential information on various products, such as their molecular structures and physical properties, to help clients enhance the health and well-being of end users. In early 2026, Waters merged with BD's life science and diagnostics business, which increased its concentration in diagnostics (versus none now) and discovery-related life science tools.

94GF Score

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

$376.43

Price

$425.48

GF Value

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