Their own payment-practices filing · gov.uk
Interserve FS (UK) Limited pays suppliers in 35 days on average — within its stated 30–60 day terms
Their H1 2026 filing puts the average 5 days past the shortest term they state (30 days), still within their 60-day upper term.
- Their stated terms
- 30–60 days
- Paid outside agreed terms
- 3% of invoices
- Paid after 61+ days
- 3%
- Reporting period
- 1 Oct 2025 – 31 Mar 2026
- Source
- their gov.uk filing, filed 29 Apr 2026
Self-reported figures from their statutory filing. How this is compiled.
Terms vs reality · their H1 2026 filing
Paid within their stated range — 35 against 30–60 days
Where their invoices landed · share of all invoices
The pattern · last 6 of 17 reports
38 → 35 days — getting faster
The read · computed from their figures
Interserve FS (UK) Limited's H1 2026 filing puts their average at 35 days against stated terms of 30–60 days; 3% of invoices were paid outside agreed terms and 3% took 61 days or longer. Filed 29 Apr 2026.
The direction is faster: from 38 days in H2 2023 to 35 now — 3 days faster across their last 6 reports.
On the latest reported averages: Slower than 58% of large companies reporting.
That is 17 statutory periods on record (earliest H1 2018) — a historical record, not a promise for a new invoice.
What they tell their suppliers
In their own words · from the filing
Standard payment terms
Our standard payment terms state that payment of supplier invoices for goods and services will be made 60 days from the end of the month in which a correct, undisputed and properly due VAT invoice is received, unless otherwise agreed by a duly authorised representative. However, consideration is also given to our SME suppliers where alternative payment terms, of 30 days from the end of the month in which a correct and undisputed VAT invoice is dated, may be agreed. The business also operates a no purchase order, no pay policy, unless otherwise agreed, in exceptional circumstances, by a duly authorised representative. Invoices received, and which do not include a valid purchase order number, are rejected and returned to the supplier.
Dispute resolution
We recognise the strategic importance of our supply chain partners, and as such are committed to treating them fairly. Our preference is to always address disputes in a transparent and timely manner, always acting in good faith, through open and constructive discussion. If such discussions fail to resolve a dispute, an authorised representative of the supplier and the company shall, within 30 days of a written request from one party to the other, meet in good faith to resolve the dispute. If the dispute remains unresolved either the supplier or the company shall refer it to mediation in accordance with the Centre for Effective Dispute Resolution ("CEDR") Model Mediation Procedure that is in force at the date of the referral
Every statutory report on record
Most recent first.
| Period | Avg days | Outside terms | 61+ days | Filed |
|---|---|---|---|---|
| H1 2026 | 35 | 3% | 3% | 29 Apr 2026 |
| H2 2025 | 49 | 4% | 3% | 29 Oct 2025 |
| H1 2025 | 59 | 4% | 4% | 30 Apr 2025 |
| H2 2024 | 42 | 6% | 4% | 29 Oct 2024 |
| H1 2024 | 53 | 10% | 19% | 29 Apr 2024 |
| H2 2023 | 38 | 21% | 10% | 27 Oct 2023 |
| H1 2023 | 80 | 42% | 35% | 27 Apr 2023 |
| H2 2022 | 56 | 35% | 26% | 31 Oct 2022 |
| H1 2022 | 50 | 41% | 21% | 29 Apr 2022 |
| H2 2021 | 62 | 32% | 16% | 28 Oct 2021 |
| H1 2021 | 63 | 35% | 19% | 6 Aug 2021 |
| H2 2020 | 61 | 47% | 30% | 29 Jan 2021 |
| H1 2020 | 54 | 32% | 16% | 22 Jul 2020 |
| H2 2019 | 58 | 33% | 24% | 30 Jan 2020 |
| H1 2019 | 62 | 53% | 27% | 30 Jul 2019 |
| H2 2018 | 44 | 44% | 16% | 31 Jan 2019 |
| H1 2018 | 34 | 44% | 10% | 30 Jul 2018 |
On the public register · Companies House
Company record
- Status
- Active
- Type
- Private Limited Company
- Incorporated
- 19 Dec 1988
- Registered office
- LEVEL 12, LONDON, SE1 9SG
Illustrative · working-capital arithmetic
What a 35-day cycle ties up
A worked example, not a finding. On a hypothetical £12k/month account, at a 35-day vs a 30-day payment cycle.
Late Payment Act. The Late Payment of Commercial Debts (Interest) Act 1998 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 · Interserve FS (UK) Limited
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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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Is this official government data?
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-02329448 · latest period to 31 Mar 2026
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