VerbatimParliament, as it happens

Income Tax: Tax Collection

Asked by Mike WoodConservativeTreasuryTabled Answered 3 July 2026UIN 12704

The question

To ask the Chancellor of the Exchequer, if she will list each third party database that HMRC has access to for the purposes of income tax collection.

Answered by Dan Tomlinson

HMRC use third-party data to help simplify tax administration. Specifically in relation to calculating tax due, the key sources of third-party data are:

o Department for Work and Pensions – pension income and benefit information

o Bank and building societies– savings interest information

o Employers – payroll data about payments to employees

In addition, HMRC also make use of third-party data in our compliance activities to ensure customers pay the right amount of income tax. To protect the operational integrity of these activities we do not disclose all of our data sources, but at a high level they include card sales data and other data that provides evidence of undeclared taxable income.

Verbatim has judged this answer against the question that was actually asked — answered, partly answered, or evaded. Sign in to see the verdict →

Open this question in Verbatim →

Every written question, searchable

155,000 questions tabled since the election, with the answer each department gave — and the ones still unanswered, with the clock running. Free to search.

Search written questions →Read on Verbatim