Merck & Co., Inc. (MRK) operating KPIs
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
$146.33+5.40 (+3.83%)
Close on Oct 29, 2026Market cap $361.02BP/E 117.1Yield 2.24%
Merck gAAP Effective Income Tax Rate (%) (%)
Form 8-K Table 2a & Form 10-Q / 10-K Income Taxes Footnote
Latest, FY2025
13.3%
Period ended Dec 31, 2025
Change on a year earlier
-0.8 pts
14.1% in FY2024
History
10 years
Since FY2016
Sources
9
Documents cited below
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | GAAP Effective Income Tax Rate (%) (%) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 13.3% | -0.8 pts | Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗ |
| FY2024 | Dec 31, 2024 | 14.1% | -65.9 pts | Form 8-K (tm264564d1_ex99-1.htm, filed 2026-02-03) ↗ |
| FY2023 | Dec 31, 2023 | 80.0% | +68.3 pts | Form 8-K (tm255059d1_ex99-1.htm, filed 2025-02-04) ↗ |
| FY2022 | Dec 31, 2022 | 11.7% | +0.7 pts | Form 8-K (tm244517d1_ex99-1.htm, filed 2024-02-01) ↗ |
| FY2021 | Dec 31, 2021 | 11.0% | -11.9 pts | Form 10-K (filed 2024-02-26) ↗ |
| FY2020 | Dec 31, 2020 | 22.9% | +1.1 pts | Form 8-K (tm222755d1_ex99-1.htm, filed 2022-02-03) ↗ |
| FY2019 | Dec 31, 2019 | 21.8% | -7.0 pts | Form 10-K (filed 2022-02-25) ↗ |
| FY2018 | Dec 31, 2018 | 28.8% | -34.1 pts | Form 10-K (filed 2021-02-25) ↗ |
| FY2017 | Dec 31, 2017 | 62.9% | +47.5 pts | Form 10-K (filed 2020-02-26) ↗ |
| FY2016 | Dec 31, 2016 | 15.4% | – | Form 10-K (filed 2019-02-27) ↗ |
Cite this data
StockData. (2026). Merck GAAP Effective Income Tax Rate (%) (%), annual FY2016–FY2025 [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.