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National Grid PLC (NGG) Debt by Year

NGG

National Grid PLC carried $55.3B in long-term debt against $1.5B in cash and equivalents at the end of fiscal year 2025. Long-term debt rose 3.7% from the prior fiscal year. The table below carries 10 fiscal years, from 2016 to 2025, and the quarters National Grid PLC has filed alongside them.

FY2025 annual
Long-Term Debt $55.3B
Cash & Equivalents $1.5B
YoY +3.7%
5Y CAGR +10.7%
Source SEC Filings (20-F/6-K) Latest period Q2 FY2026, ended Sep 30, 2025 Reported Currency USD

Annual figures, oldest first. Point at a bar to read its period.

NGG Debt & Cash by Fiscal Year

Figures are as reported in USD. Each change compares the year with the year before it, and each column links to the filing it was taken from.

MetricFY2520-FFY2420-FFY2320-FFY2220-FFY2120-FFY2020-FFY1920-FFY1820-FFY1720-FFY1620-F
Long-Term Debt$55.3B+3.7%$53.3B+7.7%$49.5B+12.9%$43.9B+15.7%$37.9B+13.9%$33.3B+5.3%$31.6B+1.6%$31.1B+7.2%$29.0B-28.8%$40.8B
Cash & Equivalents$1.5B+115.1%$706.4M+250.4%$201.6M-24.9%$268.3M+23.9%$216.6M+138.2%$90.9M-72.3%$328.4M-28.8%$461.5M-67.7%$1.4B+700.8%$178.3M

NGG Debt & Cash by Quarter

Figures are as reported in USD. Each change compares the quarter with the same quarter a year earlier.

MetricQ2'266-KQ4'256-KQ2'256-KQ4'2420-FQ2'246-KQ4'2320-FQ2'236-KQ4'2220-FQ4'2120-FQ4'2020-FQ4'1920-FQ2'196-K
Long-Term Debt$56.9B-0.1%$55.3B+3.7%$56.9B+10.7%$53.3B+7.7%$51.4B+17.3%$49.5B+12.9%$43.9B$43.9B+15.7%$37.9B+13.9%$33.3B+5.3%$31.6B+1.6%$30.7B
Cash & Equivalents$1.2B-20.9%$1.5B+115.1%$1.5B+443.7%$706.4M+250.4%$277.3M-3.9%$201.6M-24.9%$288.4M$268.3M+23.9%$216.6M+138.2%$90.9M-72.3%$328.4M-28.8%$169.7M

What long-term debt means

Long-term debt is borrowing that falls due more than a year out, and the cash line beside it is what the company held on the same balance sheet date.

More National Grid PLC financials

Frequently Asked Questions

What was National Grid PLC's long-term debt in fiscal year 2025?

National Grid PLC carried $55.3B in long-term debt against $1.5B in cash and equivalents at the end of fiscal year 2025.

How fast is National Grid PLC's long-term debt growing?

National Grid PLC (NGG) long-term debt rose by 3.7% year over year, from $53.3B to $55.3B in fiscal year 2025.

How has National Grid PLC's long-term debt changed over the years?

Across the 10 fiscal years this page covers, National Grid PLC (NGG) long-term debt went from $40.8B in fiscal year 2016 to $55.3B in fiscal year 2025.

National Grid PLC (NGG) reported $56.9B in long-term debt in Q2 2026. This represents a decrease of 0.1% from the same quarter a year earlier.

Long-term debt is borrowing that falls due more than a year out, and the cash line beside it is what the company held on the same balance sheet date. This page lists what National Grid PLC (NGG) reported on that line in every period on record.