TRADER SUPPORT SERVICE
HMRC (reports to the Treasury) · HMRC_0029_2021-Q3 · Last reported March 2025
Department page: HM Treasury
| Data as at | Rating | End date | Whole-life cost |
|---|---|---|---|
| March 2024 | Amber (the department's own assessment) | 31 December 2024 | £630m (price basis not stated) |
| March 2025 | Green (the department's own assessment) | 30 June 2025 | £711.5m (price basis not stated) |
Each year’s cost is shown with its price basis. Costs are not compared between years: the March 2024 and March 2025 reports state no price basis, and from March 2026 costs are in 2024/25 prices.
The department’s commentary
This is the department’s own commentary. It may use different prices from the table above, so its figures may not match.
March 2025
Rating: Compared to financial year 23/24-Q4, the Infrastructure Project Authority's Delivery Confidence Assessment rating at 24/25-Q4 increased from AMBER to GREEN. This is primarily due to the following factors‚ The increased rating was due to the fact that TSS has continued to deliver a high-quality service, along with new functionality to deliver the Windsor Framework, and improvements to customer experience and critical business system alignment. TSS will maintain support for traders to complete declarations, including under the new simplified customs processes.
Schedule: Compared to financial year 23/24-Q4, the project's end-date at 24/25-Q4 increased from 31/12/2024 to 30/06/2025. This is primarily due to the following factors‚ This is due to the fact that we secured agreement to extend TSS for one year to December 2025 in order to maintain support for traders.
Cost: Compared to financial year 23/24-Q4, the project's departmentally agreed Whole Life Cost at 24/25-Q4 (measured in £m) increased from 630 to 711. This is primarily due to the following factors‚ The project's departmental-agreed baseline Whole Life Cost at 24/25-Q4 increased from £630m to £711m. This is primarily due to the fact that we secured agreement to extend TSS for one year to December 2025 in order to maintain support for traders.
Source: NISTA Annual Report 2024-25 (data)
March 2024
Rating: Compared to financial year 22/23-Q4, Senior Responsible Owner's Delivery Confidence Assessment rating at 23/24-Q4 increased from Green to Amber. This is primarily due to the following factors. TSS has continued to deliver a high quality service, along with new functionality to deliver the Windsor Framework, and improvements to customer experience and critical business alignment. TSS will maintain support for traders to complete declarations, including under the new simplified customs processes. The complexity of these changes means that there are significant risks the programme is managing.
Schedule: Compared to financial year 22/23-Q4, the project's end-date at 23/24-Q4 increased from 2023-12-31 to 2024-12-31. This is primarily due to the following factors. We secured agreement from HMT to extend TSS for one year in order to maintain support for traders. This is to allow TSS to support implementation of the Windsor Framework and support traders to transition to new simplified customs arrangements. The programme has also delivered improvements and enhancements to the core customer journeys in the past 12 months, alongside supporting traders through guidance, online tools and targeted assistance
Cost: Compared to financial year 22/23-Q4, the project's departmental-agree Whole Life Cost at 23/24-Q4 increased from 532m. to 630m. This is primarily due to the following factors. We secured agreement from HMT to extend TSS for one year to December 2024 in order to maintain support for traders.
Source: IPA Annual Report 2023-24 (data)
Names, figures, dates, ratings and commentary are as the department reported them. Where a rating, cost or date is withheld, the file’s wording is shown. Every major project →