Alliant Energy (LNT) Total Debt (2009 - 2025)

Alliant Energy has reported Total Debt for 17 years, with the latest figure at $12.0 billion in Q4 2025.

• For the quarter ending Q4 2025, Total Debt rose 22.14% year-over-year to $12.0 billion; the trailing twelve-month figure through Dec 2025 stood at $12.0 billion (up 22.14% YoY), and the FY2025 full-year result was $12.0 billion, up 22.14% from the prior year.
• Total Debt for Q4 2025 stood at $12.0 billion, up from $11.7 billion in the prior quarter.
• The five-year high for Total Debt was $12.0 billion in Q4 2025, with the low at $6.8 billion in Q2 2021.
• Historically, Total Debt has averaged $9.0 billion across 5 years, with a median of $8.9 billion in 2023.
• Annual changes were most pronounced in 2021 — Total Debt climbed 2.98% — and 2025, when it climbed 22.14%.
• Alliant Energy's Total Debt stood at $7.4 billion in 2021, then climbed by 9.61% to $8.1 billion in 2022, then climbed by 11.86% to $9.0 billion in 2023, then rose by 9.01% to $9.8 billion in 2024, then rose by 22.14% to $12.0 billion in 2025.
• The last three Total Debt figures came in at $12.0 billion (Q4 2025), $11.7 billion (Q3 2025), and $11.0 billion (Q2 2025), per Business Quant data.