Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2026
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense was $3.4 million and $3.5 million for the three months ended March 31, 2026 and 2025, respectively. The effective consolidated income tax rates were 15% and 17% for the three months ended March 31, 2026 and 2025, respectively. The lower effective tax rate for the three months ended March 31, 2026 was primarily due to higher flow through tax benefits. H2O America had unrecognized tax benefits, before the impact of deductions of state taxes, excluding interest and penalties, of $4.4 million and $4.1 million as of March 31, 2026 and December 31, 2025, respectively. On July 4, 2025, Public Law No. 119-21, referred to as the One Big Beautiful Bill Act (“OBBBA”), was signed into law. The OBBBA contains several changes to corporate taxation including the extension of key provisions of the 2017 Tax Cuts and Jobs Act. The legislation has multiple effective dates, with certain provisions which were effective in 2025 and others phased in through tax year 2027. The legislation may be subject to further clarification and the issuance of interpretive guidance. The impact of the tax legislation was not material to the provision for income taxes and deferred tax balances for the first quarter of 2026.

The entire disclosure for income tax.

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+ Details

H2O AMERICA 10-Q