Merck (MRK) Tax Rate (2009 - 2026)

Merck has disclosed Tax Rate across 18 years of filings, most recently posting 20.26% for Q1 2026.

• In Q1 2026, Tax Rate fell 3411.0% year-over-year to 20.26%; the TTM figure through Mar 2026 stood at 23.11% (up 964.0% YoY), while the FY2025 annual figure was 13.31%, down 75.0% from the prior year.
• Tax Rate eased to 20.26% in Q1 2026, from 13.39% in the prior quarter.
• Over the last five years, Tax Rate for MRK reached as high as 40.08% in Q4 2023 and fell as low as 20.26% in Q1 2026.
• The 5-year median for Tax Rate is 13.39% (2025), against an average of 11.96%.
• Annual changes were most pronounced in 2023 — Tax Rate jumped 2599 bps — and 2026, when it slumped 3411 bps.
• A 5-year view of Tax Rate shows it stood at 14.09% in 2022, then surged by 184 bps to 40.08% in 2023, then slumped by 75 bps to 10.22% in 2024, then soared by 31 bps to 13.39% in 2025, then sank by 251 bps to 20.26% in 2026.
• According to Business Quant data, Tax Rate over the past three periods registered 20.26%, 13.39%, and 14.2% for Q1 2026, Q4 2025, and Q3 2025 respectively.