HMRC's new customer system estimated at £1.7bn-£4.4bn, dwarfing UK's £640m sovereign AI fund

birchlse · x · 2026-11-02

UK documents reveal HMRC's new CRM SaaS customer system carries estimated 15-year whole-life costs of roughly £1.7bn to £4.4bn including optimism bias and VAT — a range spanning £2.7bn.

Critics note the software buy dwarfs the UK's entire £640m sovereign AI fund, mocking it as buying software "like it's 2015" and highlighting the cost uncertainty of large government IT projects versus AI investment.

Related event: UK HMRC Customer System to Cost Up to £4.4bn, Dwarfing Sovereign AI Fund(2 posts)→

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