What is NiSource's interest expense, long-term debt?

NiSource (NI) reported interest expense, long-term debt of $161.95M in Q4 2025.

How has NiSource's interest expense, long-term debt changed year-over-year?

NiSource's interest expense, long-term debt increased by 28.0% year-over-year, from $126.55M to $161.95M.

What is the long-term trend for NiSource's interest expense, long-term debt?

Over 4 years (2021 to 2025), NiSource's interest expense, long-term debt has grown at a 17.8% compound annual growth rate (CAGR), from $336.40M to $647.80M.

What does interest expense, long-term debt mean?

Interest costs paid on long-term debt obligations.

Other

Interest Expense, Long-Term Debt

NiSource Interest Expense, Long-Term Debt remained flat by 0.0% to $161.95M in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 28.0%, from $126.55M to $161.95M. Over 4 years (FY 2021 to FY 2025), Interest Expense, Long-Term Debt shows an upward trend with a 17.8% CAGR. This is a positive signal — lower values indicate better performance for this metric.

Analysis

StatementIncome Statement

SectionOther

CategoryLeverage

SignalLower is better

VolatilityStable

First reportedQ1 2016

Last reportedQ4 2025Feb 11, 2026

How to read this metric

An increase reflects higher debt levels or refinancing at higher market rates, impacting long-term profitability.

Detailed definition

This represents the interest expense incurred on long-term debt obligations, such as senior notes, subordinated debt, an...

Peer comparison

Standard industry metric; peers report this as 'Interest Expense on Long-Term Debt'.

Metric ID: other_interest_expense_long_term_debt

Historical Data

5 years

	FY'21	FY'22	FY'23	FY'24	FY'25
Value	$336.40M	$344.50M	$404.10M	$506.20M	$647.80M
YoY Change	—	+2.4%	+17.3%	+25.3%	+28.0%

Range$336.40M – $647.80M

CAGR+17.8%

Avg YoY Growth+18.2%

Median YoY Growth+21.3%

Current Streak4+ years growth

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Frequently Asked Questions

What is NiSource's interest expense, long-term debt?: NiSource (NI) reported interest expense, long-term debt of $161.95M in Q4 2025.
How has NiSource's interest expense, long-term debt changed year-over-year?: NiSource's interest expense, long-term debt increased by 28.0% year-over-year, from $126.55M to $161.95M.
What is the long-term trend for NiSource's interest expense, long-term debt?: Over 4 years (2021 to 2025), NiSource's interest expense, long-term debt has grown at a 17.8% compound annual growth rate (CAGR), from $336.40M to $647.80M.
What does interest expense, long-term debt mean?: Interest costs paid on long-term debt obligations.