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KLA Corp (KLAC) operating KPIs

KLACNasdaqOptical Instruments & LensesFiscal year ends June 30
Financials through Q1 FY2027, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 29, 2026Score 16/3021% above fair value
$157.91−9.52 (-5.69%)

Close on Oct 30, 2026Market cap $206.32BP/E 39.5Yield 0.51%

KLA non-GAAP effective tax rate (%) (%)

Quarterly figures from KLA's filings and investor materials

Latest, Q4 FY26
12.4%
Period ended Jun 30, 2026
Change on a year earlier
+2.5 pts
9.9% in Q4 FY25
History
20 quarters
Since Q4 FY21
Sources
20
Documents cited below

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedNon-GAAP effective tax rate (%) (%)Year on yearSource
Q4 FY26Jun 30, 202612.4%+2.5 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10668/letter_to_shareholders/KLA+Earnings+Shareholder+Letter+-+Q4+FY26.pdf ↗
Q3 FY26Mar 31, 202615.4%+0.4 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10655/letter_to_shareholders/KLA+Shareholder+Letter+-+Q3+FY26.pdf ↗
Q2 FY26Dec 31, 202515.0%+1.3 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10612/letter_to_shareholders/KLA+Letter+to+Shareholders+-+Q2+FY26.pdf ↗
Q1 FY26Sep 30, 202514.1%+0.9 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10596/letter_to_shareholders/KLA+Corporation+Letter+to+Shareholders+Q1+FY26.pdf ↗
Q4 FY25Jun 30, 20259.9%-2.7 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10585/letter_to_shareholders/KLA+Corporation+Q2CY25+Earnings+Letter+to+Shareholders.pdf ↗
Q3 FY25Mar 31, 202515.0%+0.8 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10573/letter_to_shareholders/KLAC_LetterToShareholders_04.30.25-FINAL+.pdf ↗
Q2 FY25Dec 31, 202413.7%+0.1 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10569/letter_to_shareholders/KLA+Corporation+Q2FY25+Shareholder+Letter.pdf ↗
Q1 FY25Sep 30, 202413.2%-0.8 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10561/letter_to_shareholders/KLA+Corporation+Q1FY25+LetterToShareholders_10.30.24-FINAL.pdf ↗
Q4 FY24Jun 30, 202412.6%+0.2 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10550/letter_to_shareholders/KLA+Corporation+Q4FY24+Letter+to+Shareholders_FINAL.pdf ↗
Q3 FY24Mar 31, 202414.2%+0.2 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10539/letter_to_shareholders/KLA+Corporation+Q3FY24+Letter+to+Shareholders+-+24.04.25.pdf ↗
Q2 FY24Dec 31, 202313.6%+0.2 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10528/letter_to_shareholders/KLA_Shareholder+Letter_Q2_FY24_FINAL.pdf ↗
Q1 FY24Sep 30, 202314.0%+1.6 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10513/letter_to_shareholders/KLA_LetterToShareholders_10.25.2023_FINAL.pdf ↗
Q4 FY23Jun 30, 202312.4%-2.4 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10492/letter_to_shareholders/KLA_LetterToShareholders_07.27.2023_FINAL.pdf ↗
Q3 FY23Mar 31, 202314.0%-0.6 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10477/letter_to_shareholders/KLA_LetterToShareholders_04.26.2023_FINAL.pdf ↗
Q2 FY23Dec 31, 202213.4%–https://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10467/letter_to_shareholders/KLAC_Q2FY23_LetterToShareholders_01.26.2023-FINAL.pdf ↗
Q1 FY23Sep 30, 202212.4%-1.5 ptshttps://d1io3yog0oux5.cloudfront.net/_796af9c73d54dd068b3ab74e91c701fb/klatencor/db/1117/10449/letter_to_shareholders/KLA_LetterToShareholders_10.26.22_FINAL.pdf ↗

Cite this data

StockData. (2026). KLA Non-GAAP effective tax rate (%) (%), quarterly Q4 FY21–Q4 FY26 [Data set]. Compiled from KLA SEC filings and investor materials. https://stockdatahq.com/stocks/klac/kpis/ngaap-tax-rate

See every metric in the KLA KPI table. Data updated Oct 25, 2026.