NorthWestern Energy (NWE) Tax Rate (2022 - 2026)

NorthWestern Energy (NWE) has 5 years of Tax Rate data on file, last reported at 17.86% in Q1 2026.

• For the quarter ending Q1 2026, Tax Rate rose 136.0% year-over-year to 17.86%; the trailing twelve-month figure through Mar 2026 stood at 2.93% (up 491.0% YoY), and the FY2025 full-year result was 3.45%, up 785.0% from the prior year.
• Tax Rate for Q1 2026 stood at 17.86%, up from 87.87% in the prior quarter.
• Across five years, Tax Rate topped out at 18.69% in Q3 2025 and bottomed at 87.87% in Q4 2025.
• The 5-year median for Tax Rate is 10.09% (2023), against an average of 1.47%.
• Peak annual rise in Tax Rate reached 2595 bps in 2025, while the deepest fall reached 5295 bps in 2025.
• A 5-year view of Tax Rate shows it stood at 4.55% in 2022, then tumbled by 88 bps to 8.55% in 2023, then slumped by 309 bps to 34.92% in 2024, then slumped by 152 bps to 87.87% in 2025, then surged by 120 bps to 17.86% in 2026.
• The last three Tax Rate figures came in at 17.86% (Q1 2026), 87.87% (Q4 2025), and 18.69% (Q3 2025), per Business Quant data.

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