Scope
Reference
DBW00073.01
Description
This is a tender notice to notify the market that The Development Bank of Wales are looking to procure an external provider to perform XBRL (iXBRL) tagging of the company's statutory financial statements in compliance with HMRC regulations for Corporation Tax submissions.
Introduction
This document sets out the requirements for procuring an external provider to perform XBRL (iXBRL) tagging of the company's statutory financial statements in compliance with HMRC regulations for Corporation Tax submissions.
Objectives
Ensure statutory accounts are accurately tagged using HMRC-approved taxonomies.
Facilitate automated processing and submission of Corporation Tax returns.
Scope of Work
The external provider will:
Apply XBRL tags to the final audited and signed statutory accounts (30 in FY25 but this number is not fixed, and we reserve the right to change).
Use the appropriate HMRC-approved taxonomy (IFRS).
Validate the tagged accounts against HMRC standards.
Deliver a fully compliant iXBRL file for submission with the CT600 returns.
Directly liaise with tax advisors to facilitate submission of the CT600 returns
Deliverables
Tagged iXBRL file of statutory accounts.
Validation report confirming compliance.
Mapping documentation for reference.
Timing
Work will be carried out in Q4 of the financial year, after:
Audit completion and sign-off.
Corporation Tax computations finalized.
Delivery deadline: Prior to CT600 submission date.
Compliance and Standards
HMRC iXBRL filing requirements.
IFRS taxonomy
Validation using HMRC Gateway or approved software.
Provider Requirements
Demonstrated experience in XBRL tagging for UK statutory accounts.
Use of HMRC-recognized software tools.
Ability to meet deadlines and provide responsive support.
Provide a named client relationship manager
Demonstrated experience of liaising with third party tax advisors
On-site attendance as required by DBW
Quality Assurance
Internal review of tagged accounts before submission.
Provider to make corrections promptly if required.
Total value (estimated)
- £105,000 excluding VAT
- £126,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 2 March 2026 to 1 March 2027
- Possible extension to 1 March 2036
- 10 years
Description of possible extension:
9 years in 36-month increments
Main procurement category
Services
CPV classifications
- 66152000 - Financial market regulatory services
Contract locations
- UK - United Kingdom
Participation
Legal and financial capacity conditions of participation
Refer to tender documents
Technical ability conditions of participation
Refer to tender documents
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
3 February 2026, 12:00pm
Tender submission deadline
10 February 2026, 12:00pm
Submission address and any special instructions
https://etenderwales.bravosolution.co.uk./home.html
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
23 February 2026
Recurring procurement
Publication date of next tender notice (estimated): 6 November 2035
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Technical | Technical Capability: Compliance with HMRC standards and taxonomy. Experience: Proven track record in XBRL tagging. Delivery: Ability to meet timelines. Support: Post-delivery assistance and... |
Quality | 70.00% |
| Price | Competitive pricing structure. |
Price | 30.00% |
Other information
Payment terms
30 days from accurate invoice
Description of risks to contract performance
NA
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Justification for not publishing a preliminary market engagement notice
Time delay
Documents
Associated tender documents
https://etenderwales.bravosolution.co.uk/home.html
All documentation can be located on the eTenderWales platform
itt_122260
Technical specifications to be met
https://etenderwales.bravosolution.co.uk/home.html
All details can be located within the tender documentation
Contracting authority
Development Bank of Wales
- Public Procurement Organisation Number: PCWM-6438-QYVP
Development Bank of Wales plc
Cardiff
CF10 4BZ
United Kingdom
Contact name: Leanne Millard
Telephone: +44 2920338100
Email: leanne.millard@developmentbank.wales
Website: http://www.developmentbank.wales
Region: UKL22 - Cardiff and Vale of Glamorgan
Organisation type: Public authority - central government
Devolved regulations that apply: Wales