ALLIANT ENERGY CORP Long Term Debt

• ALLIANT ENERGY CORP showed an increase of +26.2% in Long Term Debt from 2024 to 2025.
• This data is from ALLIANT ENERGY CORP's annual report (Form 10-K), filed with the SEC on February 20, 2026.
• XBRL data for this metric is available from 2009 to 2025 (17 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Quarterly values from 10-Q filings: Q2 2010: $2.50 billion | Q3 2010: $2.70 billion | Q1 2011: $2.70 billion | Q2 2011: $2.70 billion | Q3 2011: $2.70 billion | Q1 2012: $2.73 billion | Q2 2012: $2.75 billion | Q3 2012: $2.83 billion | Q1 2013: $3.12 billion | Q2 2013: $3.14 billion | Q3 2013: $3.10 billion | Q1 2014: $2.98 billion | Q2 2014: $2.83 billion | Q3 2014: $2.80 billion | Q1 2015: $3.61 billion | Q2 2015: $3.72 billion | Q3 2015: $3.86 billion | Q1 2016: $3.52 billion | Q2 2016: $3.59 billion | Q3 2016: $3.82 billion | Q1 2017: $4.32 billion | Q2 2017: $4.35 billion | Q3 2017: $4.26 billion | Q1 2018: $4.06 billion | Q2 2018: $5.13 billion | Q3 2018: $5.25 billion | Q1 2019: $5.36 billion | Q2 2019: $5.44 billion | Q3 2019: $5.54 billion | Q1 2020: $5.83 billion | Q2 2020: $6.57 billion | Q3 2020: $6.57 billion | Q1 2021: $6.47 billion | Q2 2021: $6.47 billion | Q3 2021: $6.69 billion | Q1 2022: $7.38 billion | Q2 2022: $6.98 billion | Q3 2022: $7.57 billion | Q1 2023: $8.13 billion | Q2 2023: $8.19 billion | Q3 2023: $8.43 billion | Q1 2024: $8.52 billion | Q2 2024: $8.90 billion | Q3 2024: $9.25 billion | Q1 2025: $8.58 billion | Q2 2025: $9.64 billion | Q3 2025: $10.66 billion.
• Over the full 17 years of available data (2009 to 2025), ALLIANT ENERGY CORP's Long Term Debt has grown by 355.6%.
• Historical annual values: Fiscal year 2025: $10.95 billion | Fiscal year 2024: $8.68 billion | Fiscal year 2023: $8.23 billion | Fiscal year 2022: $7.67 billion | Fiscal year 2021: $6.74 billion | Fiscal year 2020: $6.77 billion | Fiscal year 2019: $5.53 billion | Fiscal year 2018: $5.25 billion | Fiscal year 2017: $4.01 billion | Fiscal year 2016: $4.32 billion | Fiscal year 2015: $3.52 billion | Fiscal year 2014: $3.58 billion | Fiscal year 2013: $2.98 billion | Fiscal year 2012: $3.14 billion | Fiscal year 2011: $2.70 billion | Fiscal year 2010: $2.70 billion | Fiscal year 2009: $2.40 billion.
• Data sourced from SEC EDGAR public filings as of August 6, 2026.

Last verified: August 6, 2026