Biogen (BIIB) Change in Taxes (2014 - 2026)

Biogen (BIIB) has reported Change in Taxes for 13 consecutive years, with $18.4 million the latest figure, recorded in Q1 2026.

• In Q1 2026, Change in Taxes fell 73.37% year-over-year to $18.4 million; the TTM figure through Mar 2026 stood at -$1.0 billion (down 773.43% YoY), while the FY2025 annual figure was -$958.1 million, down 1320.51% from the prior year.
• Change in Taxes came in at $18.4 million for Q1 2026 at Biogen, up from -$194.0 million in the prior quarter.
• The five-year high for Change in Taxes was $101.9 million in Q1 2022, with the low at -$603.8 million in Q2 2025.
• Average Change in Taxes over 5 years is -$76.6 million, with a median of -$32.4 million recorded in 2023.
• The largest YoY upside for Change in Taxes was 3240.91% in 2025 against a maximum downside of 10878.18% in 2025.
• Year by year, Change in Taxes stood at -$42.1 million in 2022, then plunged by 337.53% to -$184.2 million in 2023, then surged by 108.9% to $16.4 million in 2024, then slumped by 1282.93% to -$194.0 million in 2025, then jumped by 109.48% to $18.4 million in 2026.
• According to Business Quant data, Change in Taxes over the past three periods registered $18.4 million, -$194.0 million, and -$229.4 million for Q1 2026, Q4 2025, and Q3 2025 respectively.