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Their own payment-practices filing · gov.uk

How long does National Grid Electricity Transmission PLC take to pay its suppliers?

CRN 02366977 · Electricity & gas · 16 statutory reports on record · period to 31 Mar 2026

30days
their reported average time to pay suppliers, latest period
Faster than mostvs a 31-day median across 6,185 recent filers

Self-reported figure from their statutory filing. How this is compiled.

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On the public register · Companies House

Company record

Status
Active
Type
Public Limited Company
Incorporated
1 Apr 1989
Registered office
1 - 3 STRAND, WC2N 5EH
3 outstanding charges — secured borrowing registered Accounts due 30 Sept 2026

Open the full record at Companies House.

Terms vs reality

Stated terms: 0–60 days. Reported average: 30.

Stated terms0–60d
+30 days
Reported avg30d

At a glance

The key figures

0–60d
their stated terms
9%
invoices paid outside terms
±1d
steady pattern

Vs peers · latest reported averages

fasterslower
Slower than 61% of the 161 large companies reporting in electricity & gas.

The pattern

Holding steady

Average days to pay across their last 6 statutory reports.

30
31
30
31
30
30
H2 2023H1 2024H2 2024H1 2025H2 2025H1 2026

Where their supplier invoices land · latest period

within 30 days 47% 31–60 days 51% 61+ days 2%

The read · computed from their figures

National Grid Electricity Transmission PLC has filed 16 statutory payment periods (earliest H2 2018). Their latest report puts the average at 30 days against stated terms of 0–60 days.

The pattern is steady — their reported average moves within about ±1 days period to period.

In the latest period 9% of invoices were paid outside their agreed terms, and 2% landed 61+ days out.

What they tell their suppliers

Payment code: Prompt Payment Code Offers e-invoicing

In their own words · from the filing

Standard payment terms

42 days from invoice date

Dispute resolution

All disputes raised will be handled by a combination of the dedicated Purchase to Pay team, the Procurement team and the business unit working with the supplier

Every statutory report on record

Most recent first.

PeriodAvg daysOutside terms61+ daysFiled
H1 2026309%2%5 Jun 2026
H2 2025301%2%17 Nov 2025
H1 2025318%3%29 Apr 2025
H2 20243010%3%31 Oct 2024
H1 2024317%2%2 May 2024
H2 20233010%2%30 Oct 2023
H1 20232813%2%28 Apr 2023
H2 2022298%2%27 Oct 2022
H1 2022288%3%30 Apr 2022
H2 20213112%2%31 Oct 2021
H1 2021398%2%29 Apr 2021
H2 20204320%5%29 Oct 2020
H1 20204410%4%30 Apr 2020
H2 20194615%8%30 Oct 2019
H1 20194214%5%30 Apr 2019
H2 20184111%4%30 Oct 2018

Working-capital effect

What a 30-day cycle ties up

Illustrative. On a hypothetical £12k/month account, at a 30-day vs a 0-day payment cycle.

≈ £12,000
of invoicing outstanding at any one time on a 30-day cycle — about £11,800 more than the same account would carry at 0-day terms.

Late Payment Act. The Late Payment of Commercial Debts Act lets a supplier charge statutory interest and fixed compensation on invoices paid past agreed terms. Work out what a late invoice is worth → Whether it applies depends on your contract — check with an adviser.

Quick answers

Are they getting slower or faster?
Their reported average is steady — within about ±1 days period to period, around 30 days.
What's their typical pay point?
Their latest reports average around day 30, moving within about ±1 days. Treat that as a historical reference point, not a promise for a new invoice.
Can I see what this means for my invoices?
Run the live check — it re-reads their record and their live Companies House file, on the amount you invoice.

Stay ahead

Watch National Grid Electricity Transmission PLC (free)

Their next payment report is due ≈ 27 Oct 2026. We watch their public record and email you when something changes — a new payment report, late filings, insolvency markers, new charges.

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More large companies in electricity & gas

Moyle Interconnector Limited · National Grid Gas PLC · MGT Teesside Limited · National Grid Grain LNG Limited · Mercia Waste Management Limited · National Grid Ifa 2 Limited

How UK payment reporting works

What is a Payment Practices Report?
UK companies and LLPs above a size threshold — broadly, two of: turnover over £54m, balance sheet over £27m, or more than 250 employees — must report twice a year, under the Reporting on Payment Practices and Performance Regulations 2017, how quickly they actually pay suppliers: the average time to pay, the share of invoices paid in 30 days or fewer, 31 to 60 days and 61 days or longer, and their standard payment terms. Those thresholds apply to financial years beginning on or after 6 April 2025; for earlier financial years they were £36m and £18m, with the same 250-employee test.
What does "paid outside agreed terms" mean?
The share of invoices paid later than the terms in the supplier contract. If terms are 30 days and an invoice is paid on day 45, it counts as paid outside terms, regardless of the headline average.
How often is this data updated?
Each report covers a six-month period and must be filed within 30 days of that period ending, so a company's record refreshes roughly twice a year. PaidLate re-reads the register as new reports are filed.
Is this official government data?
The underlying payment figures come from the company's own statutory filings on the gov.uk payment-practices service; company-status data comes from Companies House. PaidLate calculates trends, comparisons and summaries from those records. It does not use surveys or credit-agency scores.

How this is compiled. Built from official records only: Companies House and the gov.uk payment-practices service. The payment figures are self-reported — companies over the size threshold must file them by law and the board signs them off. No credit-agency data. The numbers are theirs; the plain-English read is ours. This is information compiled from public records under the Open Government Licence v3.0 — not a credit rating and not advice.

The 31-day comparison figure is the median across 6,185 companies with a current statutory report — every sector pooled, not an average of sector medians (how the figure is built).

Report PL-02366977 · latest period to 31 Mar 2026

Verify the original Companies House file

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