MCK · 8-K · 20260805PR000232

Income Tax Rate Changes

MCKESSON CORP · 2026-08-05 · Importance 24 · Surprise 30

GAAP income tax expense increased 25% year over year to $276 million from $220 million. The increase accompanied a 24% rise in income before taxes to $1.308 billion from $1.051 billion. Adjusted income tax expense increased 15% to $340 million from $295 million, reflecting tax effects of acquisition-related amortization, transaction costs, restructuring charges, and other adjustments.

Key facts

• Income tax expense for the quarter: $276 million, increased 25% versus prior year. source