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UKAEA prompt payment return data from 2025 to 2026

DESNZ·data_release·LOW·13 Apr 2026·Updated 13 Apr 2026·source document

Summary

UKAEA published monthly prompt payment return data for 2025/26, showing invoices paid within 5 and 30 working days. Payment performance held steady at ~87% within 5 days and ~96% within 30 days across the year.

Why it matters

Administrative transparency reporting with no bearing on electricity markets, grid, or generation.

Key facts

  • 87-90% of invoices paid within 5 working days
  • 94-97% paid within 30 working days
  • Monthly invoice volumes 1,900-2,900
  • Covers April 2025 to February 2026
Memo3,294 words

We add our prompt payment return data to this page each month during the year. ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P11 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 Feb 2026 - 28 Feb 2026 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2883 | 2883 | | No. of invoices paid within specified working days or less | 2529 | 2748 | | No. of Invoices paid over specified working days | 331 | 112 | | No. of disputed invoices* | 23 | 23 | | % of invoices paid within terms | 88% | 96% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P10 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 Jan 2026 - 31 Jan 2026 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 2254 | 2254 | | | | | | | | No. of invoices paid within specified working days or less | 1975 | 2158 | | | | | | | | No. of Invoices paid over specified working days | 260 | 77 | | | | | | | | No. of disputed invoices* | 19 | 19 | | | | | | | | % of invoices paid within terms | 88% | 97% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - Quarter 3 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 Oct 2025 - 31 Dec 2025 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 7260 | 7260 | | | | | | | | No. of invoices paid within specified working days or less | 6299 | 6940 | | | | | | | | No. of Invoices paid over specified working days | 904 | 263 | | | | | | | | No. of disputed invoices* | 57 | 57 | | | | | | | | % of invoices paid within terms | 87% | 96% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P09 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 Dec 2025 - 31 Dec 2025 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 2234 | 2234 | | | | | | | | No. of invoices paid within specified working days or less | 1912 | 2125 | | | | | | | | No. of Invoices paid over specified working days | 301 | 88 | | | | | | | | No. of disputed invoices* | 21 | 21 | | | | | | | | % of invoices paid within terms | 86% | 96% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P08 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 Nov 2025 - 30 Nov 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2203 | 2203 | | No. of invoices paid within specified working days or less | 1888 | 2102 | | No. of Invoices paid over specified working days | 299 | 85 | | No. of disputed invoices* | 16 | 16 | | % of invoices paid within terms | 86% | 96% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P07 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 Oct 2025 - 31 Oct 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2823 | 2823 | | No. of invoices paid within specified working days or less | 2499 | 2713 | | No. of Invoices paid over specified working days | 304 | 90 | | No. of disputed invoices* | 20 | 20 | | % of invoices paid within terms | 89% | 97% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - Quarter 2 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 July 2025 - 30 Sept 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 6417 | 6417 | | No. of invoices paid within specified working days or less | 5460 | 5980 | | No. of Invoices paid over specified working days | 880 | 360 | | No. of disputed invoices* | 77 | 77 | | % of invoices paid within terms | 86% | 94% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P06 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 Sept 2025 - 30 Sept 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2162 | 2162 | | No. of invoices paid within specified working days or less | 1826 | 2021 | | No. of Invoices paid over specified working days | 306 | 111 | | No. of disputed invoices* | 30 | 30 | | % of invoices paid within terms | 86% | 95% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P05 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 Aug 2025 - 31 Aug 2025 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 1904 | 1904 | | | | | | | | No. of invoices paid within specified working days or less | 1636 | 1777 | | | | | | | | No. of Invoices paid over specified working days | 246 | 105 | | | | | | | | No. of disputed invoices* | 22 | 22 | | | | | | | | % of invoices paid within terms | 87% | 94% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P04 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 July 2025 - 31 July 2025 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 2351 | 2351 | | | | | | | | No. of invoices paid within specified working days or less | 1998 | 2182 | | | | | | | | No. of Invoices paid over specified working days | 328 | 144 | | | | | | | | No. of disputed invoices* | 25 | 25 | | | | | | | | % of invoices paid within terms | 86% | 94% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - Quarter 1 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 April 2025 - 30 June 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 6474 | 6474 | | No. of invoices paid within specified working days or less | 5691 | 6166 | | No. of Invoices paid over specified working days | 718 | 243 | | No. of disputed invoices* | 65 | 65 | | % of invoices paid within terms | 89% | 96% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P03 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 June 2025 - 30 June 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2124 | 2124 | | No. of invoices paid within specified working days or less | 1848 | 2016 | | No. of Invoices paid over specified working days | 257 | 89 | | No. of disputed invoices* | 19 | 19 | | % of invoices paid within terms | 88% | 96% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P02 - 5 and 30 days of receipt | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Prompt Payment Report - 2025/26 | | | | | | | | | | UK Atomic Energy Authority (NDPB) | | | | | | | | | | Reporting Month: | 01 May 2025 - 31 May 2025 | | | | | | | | | Prompt Payment Reporting | 5 Day | 30 Day | | | | | | | | No. of invoices received | 2084 | 2084 | | | | | | | | No. of invoices paid within specified working days or less | 1850 | 1989 | | | | | | | | No. of Invoices paid over specified working days | 210 | 71 | | | | | | | | No. of disputed invoices* | 24 | 24 | | | | | | | | % of invoices paid within terms | 90% | 97% | | | | | | | | Note: | | | | | | | | | | Disputed invoices are not included in statistics | | | | | | | | | | The following payment types are excluded from the return: | | | | | | | | | | Payments to Staff (e.g. salary or T&S costs) | | | | | | | | | | Foreign Currency Payments | | | | | | | | | | Any Grant Payments | | | | | | | | | ### UK Atomic Energy Authority prompt payment return: 2025 to 2026 - P01 - 5 and 30 days of receipt | Prompt Payment Report - 2025/26 | | | | --- | --- | --- | | UK Atomic Energy Authority (NDPB) | | | | Reporting Month: | 01 Apr 2025 - 30 Apr 2025 | | | Prompt Payment Reporting | 5 Day | 30 Day | | No. of invoices received | 2266 | 2266 | | No. of invoices paid within specified working days or less | 1993 | 2161 | | No. of Invoices paid over specified working days | 251 | 83 | | No. of disputed invoices* | 22 | 22 | | % of invoices paid within terms | 89% | 96% | | Note: | | | | Disputed invoices are not included in statistics | | | | The following payment types are excluded from the return: | | | | Payments to Staff (e.g. salary or T&S costs) | | | | Foreign Currency Payments | | | | Any Grant Payments | | |