---
title: "COTAX Modernisation"
ocid: "ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "H M REVENUE & CUSTOMS"
published: "2026-07-08"
---

# COTAX Modernisation

Buyer: H M REVENUE & CUSTOMS  
Current stage: Award  
OCID: ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f

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## Summary

H M Revenue & Customs (HMRC), located at 100 Parliament Street, London, sought the modernisation of the Corporation Tax (COTAX) technical services under the title "COTAX Modernisation." This process, classified in the IT services category, utilised a selective procurement method through a call-off from a framework agreement. Although the tender stage is complete, the award phase was active, with Capgemini UK Plc as the successful supplier. The contract, valued at £29,800,000, runs from 1st June 2026 to 31st May 2028, covering the entire United Kingdom, with the award being published on 8th July 2026.

This project presents substantial opportunities for large IT service providers experienced in consulting, software development, internet, and technical support. It is a significant engagement with HMRC, allowing for the potential improvement of current systems and the establishment of a pivotal relationship with one of the UK's major government bodies. Companies that have the capacity to handle extensive projects and seek to reinforce their public sector portfolios will find this tender beneficial for business expansion and establishing further opportunities in the sector.

## Notice

Modernisation and Support of the Corporation Tax (COTAX) technical services

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/84d1a4fb-3601-4017-a3b4-557376a0ca3c |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 8 Jul 2026 |
| Submission deadline | 3 May 2026 |
| Future notice date | Not specified |
| Award date | 25 Jun 2026 |
| Contract period | 31 May 2026 - 31 May 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £29,800,000 |
| Lots value | Not specified |
| Awards value | £29,800,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | H M REVENUE & CUSTOMS |
| Locality | LONDON |
| Post town | Southend-on-Sea |
| Postcode | SS99 1AA |
| Country | England |
| ITL 1 | TLH East (England) |
| ITL 2 | TLH3 Essex |
| ITL 3 | TLH31 Southend-on-Sea |
| Local authority | Southend-on-Sea |
| Electoral ward | Victoria |
| Westminster constituency | Southend East and Rochford |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CAPGEMINI |

## CPV Codes

### Divisions

- 72 - IT services: consulting, software development, Internet and support

### Codes

- 72000000 - IT services: consulting, software development, Internet and support

## Release History

- 8 Jul 2026 at 15:41 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/84d1a4fb-3601-4017-a3b4-557376a0ca3c

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/84d1a4fb-3601-4017-a3b4-557376a0ca3c
  8th July 2026 - Awarded contract notice on Contracts Finder

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-8e6b5a6c-acb5-4c9e-accf-ff30c6901d1f.json.