Company / Interest Expense
Alliant Energy Interest Expense History
FY2016-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Interest Expense
$512.0M
FY2025
5-year range
$277.0M / $512.0M
FY2021-FY2025
Trend
+14.0%
vs FY2024
Sector context
#13 of 30
Utilities
What the data says
At $512M, Alliant Energy's interest expense ranks #18 of 30 in the Utilities sector. Interest Expense has fluctuated over the past 10 years, ranging from $196M in FY2016 to $512M in FY2025.
Based on SEC 10-K filings.
$512M in FY2025 with a 5-year CAGR of +15.7%.
Increased from $277M to $512M over the past 2 years.
Utilities sector context is included.
Interest Expense over time
Growth rates
- 3-Year CAGR
- +16.4%
- 5-Year CAGR
- +15.7%
- 10-Year CAGR
- -
Sector benchmark
#18 of 30 in UtilitiesTop 57% of 30This company $512.0M Sector average $709.2M
▼
-27.8% below sector average
Key checks
Key Insights
- 5-year CAGR of +15.7%, indicating consistent growth.
- In FY2025, interest expense increased 14.0% year-over-year.
- Ranks #13 out of 30 companies in the Utilities sector.
- Lowest interest expense in the period was in FY2016.
Company context
Key Data Points
- Altman Z-Score 0.61 (distress zone, below 1.8 threshold)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Interest ExpenseValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | $512.0M | +14.0% |
| FY2024 | $449.0M | +62.1% |
| FY2023 | $277.0M | -14.8% |
| FY2022 | $325.0M | +17.3% |
| FY2021 | $277.0M | +12.1% |
| FY2020 | $247.0M | -9.5% |
| FY2019 | $273.0M | +10.5% |
| FY2018 | $247.0M | +14.6% |
| FY2017 | $215.6M | +9.9% |
| FY2016 | $196.2M | +4.9% |
As of FY2025 · SEC 10-K · Updated Jun 30, 2026