What is NiSource's interest expense?

NiSource (NI) reported interest expense of $191.6M in Q1 2026.

How has NiSource's interest expense changed year-over-year?

NiSource's interest expense increased by 44.3% year-over-year, from $132.8M to $191.6M.

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

Over 4 years (2021 to 2025), NiSource's interest expense has grown at a 17.0% compound annual growth rate (CAGR), from $341.1M to $639M.

What does interest expense mean?

Cost of borrowing — interest paid or accrued on bonds, bank loans, credit facilities, finance leases, and other debt obligations.

NiSource NI Interest Expense

Interest Expense at other companies

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$552M+11.5%

UGIUGI

$111M+8.8%

CNP

CenterPoint EnergyCNP

$261M+33.8%

Duke EnergyDUK

$897M+8.9%

OGS

ONE GASOGS

$32.36M-9.4%

New Jersey ResourcesNJR

$34.98M+7.5%

Other financials

Income statement

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Revenue$2.3B+8.0%

Gross profit$1.7B+10.1%

Operating income$819.2M+7.9%

Net income$507.1M+6.8%

EPS (diluted)$1.06+6.0%

Balance sheet

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Cash & equivalents$71.9M-72.3%

Total debt$16.7B+23.1%

Total equity$9.7B+8.6%

Total assets$36.6B+10.6%

Cash flow

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Operating cash flow$442.3M-35.6%

CapEx$805.2M+26.3%

Free cash flow-$362.9M-839%

Valuation

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Market cap$21.92B+7.5%

Enterprise value$38.6B+11.8%

P/E22.8×-0.2×

P/S1.9×-0.2×

Profitability

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Gross margin44.9%-0.7pp

Operating margin16.7%-0.3pp

Net margin8.5%-0.6pp

FCF margin-7.3%+0.7pp

Returns & leverage

See full

Return on equity10.4%0.0pp

Debt / equity1.7×+0.2×

Current ratio0.6×+0.1×

Where this comes from

Reported directly by NiSource in its filing.

Tagged under the XBRL concept us-gaap:InterestExpenseNonoperating.

The official record: NiSource’s 10-Q, filed May 6, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is NiSource's interest expense?: NiSource (NI) reported interest expense of $191.6M in Q1 2026.
How has NiSource's interest expense changed year-over-year?: NiSource's interest expense increased by 44.3% year-over-year, from $132.8M to $191.6M.
What is the long-term trend for NiSource's interest expense?: Over 4 years (2021 to 2025), NiSource's interest expense has grown at a 17.0% compound annual growth rate (CAGR), from $341.1M to $639M.
What does interest expense mean?: Cost of borrowing — interest paid or accrued on bonds, bank loans, credit facilities, finance leases, and other debt obligations.