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BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsContact Data for Tax Overpayment Collection
    Awarded contract

    Contact Data for Tax Overpayment Collection

    Awarded
    £150k
    Published 9 Sept 2026

    HMRC seeks current contact details (phone, email, address) for customers with unclaimed tax overpayments to improve collection rates.

    🇬🇧United KingdomPublished 9 Sept 2026· 3 weeks agoviaContracts Finder
    Awarded
    £150k
    Published 9 Sept 2026

    Decision brief

    4 fields
    • Contract value
      £150,000
      Pounds sterling
    • Tender closed
      16 Jul 2026
      2 months ago
    • Sector
      Research & Innovation
      Browse related listings
    • Location
      🇬🇧United Kingdom

    Suppliers

    1 supplier
    • EX
      Experian Limited
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published 3 weeks ago.

    9 Sept 2026Today16 Jul 2026

    Brief

    HM Revenue and Customs (HMRC), the UK's tax, payments, and customs authority, seeks contact information to improve collection of unclaimed tax overpayments. In 2025-2026, HMRC issued 4.8 million P800 Tax Calculation overpayment letters, but approximately 1 million remain uncollected. HMRC Payments is looking to reduce this volume by obtaining current customer contact details including mobile numbers, email addresses, and postal addresses. This data will support HMRC's communications strategy, enabling the organization to contact customers and encourage them to collect their entitled overpayments. The opportunity is open to suppliers who can provide accurate, up-to-date contact information to help reconnect HMRC with customers owed refunds.

    Track record

    6 awards · 4 winners
    Open field

    No single supplier dominates the field.

    In research innovation, H M REVENUE CUSTOMS has awarded 6 contracts to 4 suppliers.

    Who wins here
    1. IPSOS MARKET RESEARCH LIMITED2× · 33%
    2. Experian Limited2× · 33%
    3. WOODNEWTON ASSOCIATES LIMITED1× · 17%
    4. IPSOS MORI1× · 17%

    Across research innovation, the most active winners are IPSOS MARKET RESEARCH LIMITED, WSP UK LIMITED, IFF RESEARCH LIMITED — the field to beat, or your route in as a partner.

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    View on sourceContracts Finder

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    contractsfinder.service.gov.uk
    Record ID
    ea4153fe-5361-4c67-81c0-a0c46caec459-913355
    HM
    Buyer
    H M REVENUE CUSTOMS
    Sector
    Research & Innovation