HMRC's £2.4B Salesforce Bet Arrives Alongside an Unbroken Capgemini Habit

HMRC has awarded Salesforce a contract worth up to £2.4 billion including VAT to replace the tax authority's customer relationship management system, running to September 2036 with an option to extend to 2041, according to The Register. The deal covers customer and case records, portals, messaging, analytics and AI tools, and Salesforce won out over a single other finalist, Pegasystems, in the final round of bidding.

The number itself has moved a long way since HMRC first tested the market. When the department opened engagement on the project in April 2025, it estimated the work at roughly £1 billion excluding VAT over a shorter horizon, per an earlier Register report. By the time the contract went to award, the ceiling had grown to £2 billion ex-VAT, or £2.4 billion including VAT, over up to fifteen years with extensions. HMRC has not published a breakdown explaining what changed between the pre-market estimate and the signed ceiling, whether it is added scope, a longer contract term, or simply more realistic pricing for a system meant to hold decades of taxpayer records.

The timing matters because this is not HMRC's only major technology procurement in flight, and the others have not gone the way HMRC once promised. In April 2026 the department handed a separate contact centre contract, worth up to £600 million over ten years, to Capgemini, with NiCE and Route 101 as subcontractors, intended to integrate with whatever CRM platform eventually arrived. In June 2026, The Register reported that the CRM award itself had been delayed while the Capgemini contact centre deal proceeded on schedule, with HMRC saying only that timelines were kept under review. Then in August 2026, HMRC gave Capgemini a further £37 million to migrate its Enterprise Tax Management Platform, which processes more than £800 billion a year, from SAP ECC to S/4HANA, a deal that The Register noted could extend Capgemini's run with the department toward 28 years.

That run has a longer history than 28 years might suggest. HMRC's predecessor department signed the roughly £10 billion, thirteen-year Aspire contract with Capgemini in 2004, and publicly committed in both 2015 and 2016 to reducing its dependence on the supplier once Aspire wound down. Instead, The Register reported on September 28 that HMRC has paid Capgemini at least £4.2 billion across more than 15,700 transactions since Aspire was due to end, with the relationship now capable of stretching to 32 years. That story ran one day before the Salesforce award was announced.

Set against that record, the Salesforce contract reads as much like a second long-term vendor commitment as a break from the pattern it appears designed to fix. HMRC has spent the past two years narrating this program as modernization, replacing legacy CRM technology and reducing reliance on any single long-running supplier. Yet the same procurement season has produced three large, separately awarded contracts, CRM, contact centre and SAP migration, spanning two vendors that each carry ten-to-fifteen-year terms, all of which now have to interoperate for the system to function as advertised.

The service failures that justified the overhaul are well documented. The Public Accounts Committee said in 2025 that HMRC had deliberately degraded phone service to push callers online, and HMRC's own figures showed nearly 44,000 callers cut off after waiting 70 minutes in 2023-24, with only about 67% of calls answered and satisfaction with phone contact at 47.5%. Callers collectively spent 798 years on hold in 2022-23. None of the public materials on the Salesforce award specify whether the new CRM platform changes call-handling capacity directly, or whether that burden falls entirely on the separate Capgemini contact centre contract signed five months earlier.

There is also a broader policy question sitting underneath the contract's fine print. The UK government has been building an insourcing unit explicitly aimed at reversing what officials have called the biggest wave of outsourcer dependency in a generation, a response to exactly the kind of long-running, single-vendor arrangement Aspire became. HMRC signing a fifteen-year, £2.4 billion SaaS contract with one supplier sits awkwardly next to that stated direction, and next to a government-wide procurement memorandum of understanding with Salesforce that commentary from diginomica has already flagged as a risk of concentrating public sector IT in a small number of large cloud vendors.

What the award notice does not answer is whether HMRC's exit terms this time look any different from Aspire's. The department has not published the contract's break clauses, renewal triggers, or the conditions under which the 2036 to 2041 extension would be exercised. Given that the same department spent a decade promising to reduce Capgemini dependence while the invoices kept arriving, that is the detail worth watching for when the underlying contract documents surface.