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Merck & Co., Inc.

MRKNYSEPharmaceutical PreparationsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026Score 9/30242% above fair value
$149.52+3.19 (+2.18%)

Close on Oct 30, 2026Market cap $368.89BP/E 119.6Yield 2.19%

Merck GAAP Effective Income Tax Rate by Quarter

GAAP Effective Income Tax Rate (%) (%)

QuarterlyAnnual

Merck GAAP Effective Income Tax Rate: -95.9% in Q2 2026, down 107.3 pts from a year earlier. That is the lowest of the 41 quarters on record here.

Latest, Q2 2026
-95.9%
Period ended Jun 30, 2026
Change on a year earlier
-107.3 pts
11.4% in Q2 2025
History
41 quarters
Since Q1 2016
Sources
35
Documents cited below

Where the Q2 2026 figure comes from

“|| Tax Rate | -95.9 | % | 160.3 | %”

Source: Form 8-K (tm2621496d1_ex99-1.htm, filed 2026-08-04) ↗

Reported in Form 8-K Table 2a & Form 10-Q / 10-K Income Taxes Footnote.

Quarterly history

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

PeriodEndedGAAP Effective Income Tax Rate (%) (%)Year on yearSource
Q2 2026Jun 30, 2026-95.9%-107.3 ptsForm 8-K (tm2621496d1_ex99-1.htm, filed 2026-08-04) ↗
Q1 2026Mar 31, 2026-20.1%-34.0 ptsForm 8-K (tm2612241d1_ex99-1.htm, filed 2026-04-30) ↗
Q4 2025Dec 31, 202513.4%+3.2 ptsForm 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
Q3 2025Sep 30, 202514.2%-8.5 ptsForm 8-K (tm2529620d1_ex99-1.htm, filed 2025-10-30) ↗
Q2 2025Jun 30, 202511.4%+2.3 ptsForm 8-K (tm2621496d1_ex99-1.htm, filed 2026-08-04) ↗
Q1 2025Mar 31, 202513.9%-2.0 ptsForm 8-K (tm2612241d1_ex99-1.htm, filed 2026-04-30) ↗
Q4 2024Dec 31, 202410.2%-29.9 ptsForm 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗
Q3 2024Sep 30, 202422.7%+7.2 ptsForm 8-K (tm2529620d1_ex99-1.htm, filed 2025-10-30) ↗
Q2 2024Jun 30, 20249.1%+21.0 ptsForm 8-K (tm2521736d1_ex99-1.htm, filed 2025-07-29) ↗
Q1 2024Mar 31, 202415.9%-6.7 ptsForm 8-K (tm2512885d1_ex99-1.htm, filed 2025-04-24) ↗
Q4 2023Dec 31, 202340.1%+26.0 ptsForm 8-K (tm255059d1_ex99-1.htm, filed 2025-02-04) ↗
Q3 2023Sep 30, 202315.5%+6.3 ptsForm 8-K (tm2426878d1_ex99-1.htm, filed 2024-10-31) ↗
Q2 2023Jun 30, 2023-11.9%-23.9 ptsForm 8-K (tm2420272d1_ex99-1.htm, filed 2024-07-30) ↗
Q1 2023Mar 31, 202322.6%+11.2 ptsForm 8-K (tm2412490d1_ex99-1.htm, filed 2024-04-25) ↗
Q4 2022Dec 31, 202214.1%–Form 8-K (tm244517d1_ex99-1.htm, filed 2024-02-01) ↗
Q3 2022Sep 30, 20229.2%-4.0 ptsForm 8-K (tm2328962d1_ex99-1.htm, filed 2023-10-26) ↗

Cite this data

StockData. (2026). Merck GAAP Effective Income Tax Rate (%), quarterly Q1 2016–Q2 2026 [Data set]. Compiled from Merck SEC filings and investor materials. https://stockdatahq.com/stocks/mrk/kpis/gaap-etr-table2

See every metric in the Merck KPI table. Data updated Oct 26, 2026.