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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.

    ContractsCorporate Tax Data Validation System
    Awarded contract

    Corporate Tax Data Validation System

    Awarded
    £705k
    Published 12 Aug 2026

    Develop a validation system that checks corporate tax data for accuracy and compliance before submission.

    🇬🇧United Kingdom· LondonPublished 12 Aug 2026· YesterdayviaFind a Tender
    Awarded
    £705k
    Published 12 Aug 2026

    Decision brief

    4 fields
    • Contract value
      £705,000
      Pounds sterling
    • Closing date
      Rolling
      No closing date published
    • Sector
      IT & Software
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Suppliers

    1 supplier
    • CO
      CoreFiling Limited
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published yesterday.

    12 August 2026
    Awarded — no open tender advertised

    Brief

    This opportunity involves developing or enhancing an XBRL (eXtensible Business Reporting Language) validation module designed to improve the quality and compliance of corporate tax data submissions. The system will validate tax computation formats, provide real-time feedback to taxpayers, tax agents, and software providers before they submit their filings, and support automated compliance risk profiling. Suppliers should understand that this solution bridges the gap between new tax reporting mandates and data quality assurance, helping stakeholders identify and correct errors early in the submission process rather than after filing.

    Track record

    3 awards · 3 winners
    Open field

    No single supplier dominates the field.

    In it software, HM Revenue & Customs has awarded 3 contracts to 3 suppliers.

    Who wins here
    1. ACCENTURE UK LIMITED1× · 33%
    2. CoreFiling Limited1× · 33%
    3. TAX ANALYSTS1× · 33%

    Across it software, the most active winners are SOFTCAT PLC, PHOENIX SOFTWARE LTD, SOFTCAT LTD - FCA — the field to beat, or your route in as a partner.

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    Take action
    View on sourceFind a Tender

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06e2da
    HR
    Buyer
    HM Revenue & Customs
    Sector
    IT & Software