Late Payment of Commercial Debts Act checklist: payment periods, interest and compensation

Under Late Payment of Commercial Debts (Interest) Act 1998, ss. 4(2A)–(2I), 4(5A)–(5D), 5A, 8–10, 14; Procurement Act 2023, s.68: payment period of no more than 60 days; public authority pays within 30 days of the invoice; acceptance or verification procedure of no more than 30 days. The contract must not contain: excluding statutory interest without a substantial contractual remedy; excluding the fixed sum (£40/£70/£100) or recovery costs; to check: interest only after demand or from a later date (a variation of the statutory right). KROTKA checks each of these provisions separately.

The checklist result is not AI-written text. The same version of KROTKA gives the same result for the same document, and every provision found is shown as a verbatim quote (for scans: from the OCR text) that you can check. The optional AI summary is off by default and does not affect the checklist result.

Wording in force since 24 February 2025; checked against current law on 10 October 2026. Wording after the 2013 and 2015 Regulations (60- and 30-day limits in s.4(2A)–(2I)) and the last change on 24 February 2025 (public authority defined by the Procurement Act 2023). The Commercial Payments Bill is not in force as of 10 October 2026.

Our measurement: Precision 55–88%, recall 67–78% at the first blind pass, 82–100% / 83–100% after fixes (13 sets of purchase terms and government contracts; damage-notice windows are not counted as acceptance, working days are converted to calendar days). The first figure is on agreements the engine had not seen, compared with independently prepared annotations; the "after fixes" figure is on the same agreements after the rules were adjusted and does not indicate performance on new documents. Samples are small. We do not guarantee that the list detects every provision or every gap; the user is responsible for assessing compliance and the correctness of the agreement.

No. It shows whether and where the provision appears. Judging its content is the lawyer's job. "Not found" means the engine found no such provision in the uploaded documents. KROTKA does not provide legal advice.

As of 10 October 2026 it is a bill going through Parliament, not law in force. The list compares contracts with the 1998 Act as it stands today; we will update it when new rules come into force.

No. Files are processed on our compute provider (Modal, USA) and deleted right after the analysis; we do not keep document content or use it to train models.

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