Nisource (NI) Tax Rate (2009 - 2026)

Nisource (NI) has reported Tax Rate for 18 consecutive years, with 13.36% the latest figure, recorded in Q1 2026.

• Tax Rate for Q1 2026 came in at 13.36%, down 335.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 15.0% (down 121.0% YoY), and the FY2025 annual result was 16.75%, up 99.0% from the prior year.
• Tax Rate was 13.36% for Q1 2026 at Nisource, down from 16.17% in the prior quarter.
• Over five years, Tax Rate peaked at 23.34% in Q2 2023 and troughed at 3.72% in Q3 2023.
• Average Tax Rate over 5 years is 16.05%, with a median of 16.14% recorded in 2025.
• Year-over-year, Tax Rate slumped 1184 bps in 2023 and soared 1037 bps in 2024.
• Over 5 years, Tax Rate stood at 15.63% in 2022, then advanced by 1 bps to 15.72% in 2023, then grew by 6 bps to 16.59% in 2024, then slipped by 3 bps to 16.17% in 2025, then dropped by 17 bps to 13.36% in 2026.
• Per Business Quant data, the three most recent Tax Rate figures were 13.36% in Q1 2026, 16.17% in Q4 2025, and 16.14% in Q3 2025.