← Cases
United KingdomPublic sector2021 – ongoing

Department for Work and Pensions (DWP)

Child Maintenance Group returned-letter address extraction

DWP automated address extraction for a returned-letter workload of around 5,000 letters monthly

In progressCompany's own claim

Problem

The Child Maintenance Group received around 5,000 undeliverable letters each month. Staff previously opened letters and investigated addresses manually.

Approach

DWP and Accenture developed the extraction system in 2021. Computer vision located address and reference-number regions in scanned letters, and optical character recognition converted them into text. The service ran Monday to Friday, with failed extractions referred to staff.

Results

Around 5,000returned letters received monthly by the Child Maintenance Group, rather than a measured AI benefitCompany's own claim[1]

Takeaway

The system supplied extracted information to the Child Maintenance Group. DWP did not publish an extraction accuracy or measured time saving.

Categories

Business function
Production and quality
Innovation type
Process innovation
AI technology
Computer vision
Evidence
Company's own claim

Sources

  1. DWP: CMG Return Letters processing
    GOV.UK22 Dec 2025Government publication

Source summaries

[1]GOV.UK22 Dec 2025

DWP documented production use of computer vision and OCR for returned letters. It reported around 5,000 incoming returned letters monthly and described human review when extraction failed.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
Open case page ↗