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Transparency · Major projects

POST OFFICE - TRANSFORMATION

DBT · DBT_0293_2324-Q3 · Earlier name: POST OFFICE - NEW IT SYSTEM (March 2025)

Department page: Department for Business, Innovation, Science and Trade

Data as atRatingEnd dateWhole-life cost
March 2025The GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule informationThe GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule informationThe GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule information
March 2026Amber (NISTA's independent assessment)Low: 31/03/2030, Mid: 31/03/2032, High: 31/03/2031£1,553.73m (in 2024/25 prices)

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 2026

Rating: Compared to financial year 24/25 Q4, the NISTA/SRO Delivery Confidence Assessment (DCA) rating at 25/26 has improved to Amber from Red representing the material progress made in establishing the programme and its underlying control infrastructure.

Schedule: We remain on track with the 5 year overall programme and core outcomes expected from it.

Cost: WLC in line with business case.

Source: NISTA Major Projects Annual Report 2025-26 (data)

March 2025

Rating: The GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule information

Schedule: The GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule information

Cost: The GMPP project is still at the planning stage (Pre-SOC or equivalent) and is not yet in a position to provide cost/schedule information

Source: NISTA Annual Report 2024-25 (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 →