Other

Unrecognized tax benefits

Merck & Co. Unrecognized tax benefits increased by 11.9% to $2.53B in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 11.9%, from $2.26B to $2.53B. Over 5 years (FY 2020 to FY 2025), Unrecognized tax benefits shows an upward trend with a 10.5% CAGR. This increase may warrant attention — for this metric, lower values are generally preferred.

Analysis

StatementBalance Sheet Statement
SectionOther
CategoryRisk
SignalLower is better
VolatilityModerate
First reportedQ4 2012
Last reportedQ4 2025Feb 24, 2026

How to read this metric

An increase suggests more aggressive tax positions or increased scrutiny from tax authorities, while a decrease indicates resolution of tax uncertainties.

Detailed definition

Represents the total amount of tax benefits that have been taken or are expected to be taken in tax returns but have not...

Peer comparison

Standard disclosure for large multinational corporations; peers with complex global tax structures typically report significant balances.

Metric ID: other_unrecognized_tax_benefits

Historical Data

5 periods
 Q4 '21Q4 '22Q4 '23Q4 '24Q4 '25
Value$1.53B$1.84B$2.38B$2.26B$2.53B
QoQ Change+20.0%+29.9%-5.2%+11.9%
YoY Change+20.0%+29.9%-5.2%+11.9%
Range$1.53B$2.53B
CAGR+65.5%
Avg YoY Growth+14.2%
Median YoY Growth+16.0%

Frequently Asked Questions

What is Merck & Co.'s unrecognized tax benefits?
Merck & Co. (MRK) reported unrecognized tax benefits of $2.53B in Q4 2025.
How has Merck & Co.'s unrecognized tax benefits changed year-over-year?
Merck & Co.'s unrecognized tax benefits increased by 11.9% year-over-year, from $2.26B to $2.53B.
What is the long-term trend for Merck & Co.'s unrecognized tax benefits?
Over 5 years (2020 to 2025), Merck & Co.'s unrecognized tax benefits has grown at a 10.5% compound annual growth rate (CAGR), from $1.54B to $2.53B.
What does unrecognized tax benefits mean?
The total value of tax positions taken that are not yet fully recognized in financial reporting due to uncertainty.