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Their own payment-practices filing · gov.uk

Amentum (UK) Ltd. paid suppliers in 31 days on average — within its stated 30–45 day terms

CRN 03909808 · Water & waste · 2 statutory reports on record · period to 30 Sept 2024

Dated record. The latest report covers a period ending 30 Sept 2024 and the company hasn’t filed since (it may have dropped below the reporting threshold). Treat the figures as historical.
31daysavg time to pay · H2 2024

Their H2 2024 filing put the average 1 day past the shortest term they state (30 days), still within their 45-day upper term.

Their stated terms
30–45 days
Paid outside agreed terms
31% of invoices
Paid after 61+ days
5%
Reporting period
1 Apr 2024 – 30 Sept 2024
Source
their gov.uk filing, filed 29 Oct 2024

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

Terms vs reality · their H2 2024 filing

Paid within their stated range — 31 against 30–45 days

The read · computed from their figures

Amentum (UK) Ltd.'s H2 2024 filing put their average at 31 days against stated terms of 30–45 days; 31% of invoices were paid outside agreed terms and 5% took 61 days or longer. Filed 29 Oct 2024.

That is 2 statutory periods on record (earliest H1 2024) — a historical record, not a promise for a new invoice.

What they tell their suppliers

Payment code: Prompt Payment Code

In their own words · from the filing

Standard payment terms

All of our contracts with suppliers have payment terms of not more than 30 days and, typically, monthly or milestone invoicing. In certain circumstances (eg for some sole trader firms) when requested we have agreed shorter payment periods or weekly invoicing to alleviate cash issues for the supplier

Dispute resolution

If any dispute or difference arises between Seller and Buyer under or in connection with this Agreement, it shall in the first instance be referred to Buyer’s authorised representative and Seller’s authorised representative both of who shall meet in an attempt to resolve such dispute or difference by negotiation. If the dispute or difference shall not have been resolved within 28 days following referral to Buyer’s authorised representative and Seller’s authorised representative for resolution, the parties may by agreement refer the dispute or difference to mediation if the matter is suitable for resolution by mediation. Until the earlier of (i) such date as Seller’s authorised representative and Buyer’s authorised representative determine that they cannot resolve the dispute or differ

Every statutory report on record

Most recent first.

PeriodAvg daysOutside terms61+ daysFiled
H2 20243131%5%29 Oct 2024
H1 20242330%5%30 Apr 2024

On the public register · Companies House

Company record

Status
Active
Type
Private Limited Company
Incorporated
19 Jan 2000
Registered office
305 BRIDGEWATER PLACE, WARRINGTON, WA3 6XF
0 outstanding charges on the register Accounts due 30 Sept 2026 — overdue

Open the full record at Companies House.

Quick answers · Amentum (UK) Ltd.

What's their typical pay point?
Their latest reports averaged around day 31. 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.
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They haven’t filed a payment report since 29 Oct 2024. 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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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-03909808 · latest period to 30 Sept 2024

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