Select committee: Public Accounts Committee
Recommendation 21
3rd Report - HMRC Customer Service and Accounts
Published 22 Jan 2025
Addressed to HM Treasury
Public Accounts Committee HMRC Customer Service and Accounts 2023-24 All items in this report Report on parliament.uk ↗ Inquiry on parliament.uk ↗
Recommendation (the committee's words)
HMRC said that its calculation of the tax gap uses estimation and judgement, and that some parts of it are more certain than others.62 It said in October 2024 it published experimental statistics on the proportion of the tax gap that comes from foreign income. In monetary terms, HMRC 55 Q 36 56 Report on 2023–24 Accounts, para 5 57 Q 15 58 Q 19; Report on 2023–24 Accounts, para 5 59 Qq 16, 19, 33 60 Qq 21-22 61 Q 29 62 Q 20 14 estimated this at £0.3 billion. HMRC said this represents only one aspect of the offshore tax gap and is uncertain, and that the data published in 2024 relates to undeclared or under-declared tax in the year 2018–19.63
From: Public Accounts Committee, 3rd Report - HMRC Customer Service and Accounts (HC 347), 22 January 2025
Government response
Latest Treasury Minutes progress report to the Committee of Public Accounts on the Third Report of Session 2024-26
The government responded to the whole report on 4 June 2026.
Treasury minutes: Government response to the Committee of Public Accounts on the Third report from Session 2024-25
Published 6 May 2025.
Summary written by Accountability Index from the government's response. It is not the government's own words.The government agrees with most of the Committee's recommendations, with target implementation dates ranging from March 2026 to March 2028 for several, but disagrees with reinstating a call waiting time target and with the proposed resourcing "guard rails" and corrective trigger.
- On a call waiting time target, the government "disagrees". It says ASA "remains a key performance metric" and that its Adviser Attempts Handled measure and customer satisfaction metrics give "a more rounded view" of the experience for all callers.
- The government agrees that call waiting estimates, no cut-offs without warning and a callback service should be required in a new telephone service, with a target implementation date of March 2027. It says the new Contact Service platform procurement will launch in spring 2025.
- The government disagrees with setting a trigger when service levels fall more than five percentage points below target. It says HMRC is "always reviewing plans and forecasts of demand" and adjusting resourcing "day-by-day and week-by-week".
- On tax debt, the government agrees, and HMRC "will respond to the Committee in September 2025" with its expectations for the debt balance by 2029-30 and plans for older debts, allowing for the outcome of Spending Review Phase 2.