Their own payment-practices filing · gov.uk

National Grid Gas PLC paid suppliers in 31 days on average — inside its 42-day stated terms

CRN 02006000 · Electricity & gas · 14 statutory reports on record · period to 31 Mar 2025

Dated record. The latest report covers a period ending 31 Mar 2025 and the company hasn’t filed since (it may have dropped below the reporting threshold). Treat the figures as historical.

31daysavg time to pay · H1 2025

Their H1 2025 filing put the average 11 days inside their stated 42-day term.

Their stated terms: 42 days
Paid outside agreed terms: 12% of invoices
Paid after 61+ days: 3%
Reporting period: 1 Oct 2024 – 31 Mar 2025
Source: their gov.uk filing, filed 29 Apr 2025

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

Terms vs reality · their H1 2025 filing

Paid 11 days inside the 42-day term they state

PAIDLATE · terms vs the clockdays to pay · 0–50

avg 31d

0 days50 days

reported avg 31 days their filed terms 42 days UK median 31 days · n = 6,104 recent filers

Where their invoices landed · share of all invoices

within 30 days 50% 31–60 days 47% 61+ days 3%

Source: their statutory Payment Practices Report #97669, period 1 Oct 2024 – 31 Mar 2025, filed 29 Apr 2025 · gov.uk payment-practices service

National Grid Gas PLC paid 11 days inside its stated 42-day term. 12% of invoices still went outside agreed terms; 3% reached 61 days or more. Self-reported in their statutory H1 2025 filing.

The pattern · last 6 of 14 reports

Held steady around 31 days

PAIDLATE · the patternavg days per report

Last 6 of 14 filed reports · linear day scale · every period is in the table below · Source: gov.uk payment-practices service

Steady around 31 days. Their reported average has moved within about ±4 days period to period; the dashed line marks the 42-day term they state.

The read · computed from their figures

National Grid Gas PLC's H1 2025 filing put their average at 31 days against stated terms of 42 days; 12% of invoices were paid outside agreed terms and 3% took 61 days or longer. Filed 29 Apr 2025.

The pattern is steady — their reported average moves within about ±4 days period to period.

That is 14 statutory periods on record (earliest H2 2018) — a historical record, not a promise for a new invoice.

What they tell their suppliers

Payment code: Prompt Payment Code Offers e-invoicing

In their own words · from the filing

Standard payment terms

We commit to the payment of all undisputed sums properly due to third party suppliers within 42 days of a receipt of a valid invoice into the Accounts Payable department that references a Purchase Order number. A small number of companies have standard terms that fall outside this.

Dispute resolution

In first instance all queries and/or disputes to be taken up with the National Grid purchase order contact stated on the PO. For general PO or payment queries e-mail to be sent to box.g.frontdesk.businessservices.nationalgas.co.uk

Every statutory report on record

Most recent first.

Period	Avg days	Outside terms	61+ days	Filed
H1 2025	31	12%	3%	29 Apr 2025
H2 2024	24	19%	4%	31 Oct 2024
H1 2024	28	11%	3%	25 Apr 2024
H2 2023	28	13%	2%	19 Oct 2023
H1 2023	26	14%	2%	28 Apr 2023
H2 2022	29	11%	2%	27 Oct 2022
H1 2022	28	9%	2%	30 Apr 2022
H2 2021	31	13%	3%	31 Oct 2021
H1 2021	40	9%	3%	28 Apr 2021
H2 2020	44	26%	6%	29 Oct 2020
H1 2020	44	14%	6%	30 Apr 2020
H2 2019	46	15%	8%	30 Oct 2019
H1 2019	45	18%	7%	30 Apr 2019
H2 2018	45	16%	6%	30 Oct 2018

On the public register · Companies House

Company record

Status: Active
Type: Public Limited Company
Incorporated: 1 Apr 1986
Registered office: NATIONAL GRID HOUSE WARWICK TECHNOLOGY PARK, WARWICK, CV34 6DA

3 outstanding charges — secured borrowing registered Accounts due 30 Sept 2027

Open the full record at Companies House.

Quick answers · National Grid Gas PLC

Are they getting slower or faster?

Their reported average was steady — within about ±4 days period to period, around 31 days.

What's their typical pay point?

Their latest reports averaged around day 31, moving within about ±4 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

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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 6,104 companies with a current statutory report — every sector pooled, not an average of sector medians (how the figure is built).

Report PL-02006000 · latest period to 31 Mar 2025

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