Biogen (BIIB) Tax Rate (2009 - 2026)
Biogen (BIIB) recorded Tax Rate of 26.36% in Q2 2026, up 11.68 percentage points from 14.68% a year earlier and up 10.95 percentage points from the prior quarter.
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Analysis
Biogen (BIIB) Tax Rate (2009 - 2026) Analysis & Trends
For FY2025, Biogen reported Tax Rate of 16.94%, up 2.57 percentage points from FY2024.
- Annual Tax Rate has a five-year change of -2.72 percentage points (FY2020 to FY2025).
- Across earlier years, Tax Rate came in at 14.37% in FY2024 (+3.93 pp), 10.43% in FY2023 (-7.18 pp), 17.62% in FY2022 (+14.61 pp) and 3.01% in FY2021 (-16.65 pp).
- The Q2 2026 figure is the highest quarterly Tax Rate since Q1 2022.
- On a year-over-year basis, Tax Rate rose in three of the last six quarters, with an average year-over-year change of +1.04 percentage points.
- Peak year-over-year performance for Tax Rate in the last five years was a gain of 105.66 percentage points in Q4 2021, against a drop of 100.44 percentage points in Q4 2022 at the low end.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Eli Lilly | 1,359.75 Bn | 1,333.37 Bn | 20.46 Bn | 23.26% |
| 2 | Johnson & Johnson | 688.76 Bn | 608.62 Bn | 17.30 Bn | - |
| 3 | AbbVie | 521.69 Bn | 489.75 Bn | 13.12 Bn | 12.61% |
| 4 | Merck | 364.31 Bn | 327.31 Bn | 13.19 Bn | 8.85% |
| 5 | Novartis Ag | 306.35 Bn | 279.93 Bn | - | - |
| 6 | Astrazeneca | 285.96 Bn | 259.56 Bn | 13.26 Bn | - |
| 7 | Amgen | 251.88 Bn | 203.53 Bn | 7.58 Bn | 17.54% |
| 8 | Gilead Sciences | 208.59 Bn | 183.61 Bn | 6.73 Bn | 20.70% |
| 9 | Pfizer | 164.73 Bn | 112.38 Bn | 12.56 Bn | 3.96% |
| 10 | Biogen | 37.46 Bn | 26.77 Bn | 2.06 Bn | - |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 26.36% |
| Mar 31, 2026 | 15.41% |
| Sep 30, 2025 | 16.29% |
| Jun 30, 2025 | 14.68% |
| Mar 31, 2025 | 22.72% |
| Dec 31, 2024 | 8.51% |
| Sep 30, 2024 | 13.86% |
| Jun 30, 2024 | 16.47% |
| Mar 31, 2024 | 15.36% |
| Dec 31, 2023 | 14.64% |
| Jun 30, 2023 | 16.21% |
| Mar 31, 2023 | 11.57% |
| Dec 31, 2022 | 8.99% |
| Sep 30, 2022 | 17.23% |
| Jun 30, 2022 | 17.07% |
| Mar 31, 2022 | 36.15% |
| Dec 31, 2021 | 109.43% |
| Mar 31, 2021 | 9.46% |
| Dec 31, 2020 | 3.77% |
| Sep 30, 2020 | 25.14% |
API Access
Biogen Tax Rate API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=tax-rate&ticker=BIIB&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "BIIB", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=tax-rate&ticker=BIIB&period=max&api_key=YOUR_API_KEY");
const data = await res.json();