Alliant Energy (LNT) Non Operating Interest Expenses (2009 - 2025)

Alliant Energy (LNT) has reported Non Operating Interest Expenses for 17 consecutive years, with $140.0 million the latest figure, recorded in Q4 2025.

• For the quarter ending Q4 2025, Non Operating Interest Expenses rose 16.67% year-over-year to $140.0 million; the trailing twelve-month figure through Dec 2025 stood at $511.0 million (up 13.81% YoY), and the FY2025 full-year result was $512.0 million, up 14.03% from the prior year.
• Non Operating Interest Expenses rose to $140.0 million in Q4 2025 per LNT's latest filing, from $128.0 million in the prior quarter.
• Across five years, Non Operating Interest Expenses topped out at $140.0 million in Q4 2025 and bottomed at $68.0 million in Q3 2021.
• Historically, Non Operating Interest Expenses has averaged $97.8 million across 5 years, with a median of $97.5 million in 2023.
• The sharpest annual moves came in 2021 and 2023: Non Operating Interest Expenses retreated 1.43% in 2021, then grew 27.03% in 2023.
• Over 5 years, Non Operating Interest Expenses stood at $71.0 million in 2021, then climbed by 26.76% to $90.0 million in 2022, then advanced by 16.67% to $105.0 million in 2023, then gained by 14.29% to $120.0 million in 2024, then advanced by 16.67% to $140.0 million in 2025.
• According to Business Quant data, Non Operating Interest Expenses over the past three periods registered $140.0 million, $128.0 million, and $124.0 million for Q4 2025, Q3 2025, and Q2 2025 respectively.