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

Alliant Energy's Interest Expenses history runs 17 years deep, the most recent figure standing at $140.0 million for Q4 2025.

• On a quarterly basis, Interest Expenses rose 13.82% year-over-year to $140.0 million in Q4 2025; TTM through Dec 2025 was $531.0 million, a 17.48% increase from a year earlier, with the FY2025 full-year figure at $512.0 million, up 14.03% from the prior year.
• 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, Interest Expenses topped out at $392.0 million in Q4 2023 and bottomed at $68.0 million in Q3 2021.
• The 5-year median for Interest Expenses is $97.5 million (2023), against an average of $113.0 million.
• Across the five-year window, Interest Expenses surged 415.79% in 2023 and tumbled 68.62% in 2024, its largest moves.
• Year by year, Interest Expenses stood at $80.0 million in 2021, then retreated by 5.0% to $76.0 million in 2022, then jumped by 415.79% to $392.0 million in 2023, then tumbled by 68.62% to $123.0 million in 2024, then climbed by 13.82% to $140.0 million in 2025.
• Per Business Quant, the three latest LNT Interest Expenses figures stand at $140.0 million (Q4 2025), $128.0 million (Q3 2025), and $124.0 million (Q2 2025).