Case Study: Severn Trent Water achieves compliant, time-saving iXBRL tagging with IRIS Software Group (IRIS OpenResourcing)

Severn Trent has iXBRL tagging on tap with IRIS OpenResourcing

Severn Trent Water, one of the largest regulated water and sewerage companies in England and Wales serving over 4.2 million households and businesses, faced a growing administrative burden from HMRC iXBRL tagging that previously required about a month of its small tax team’s time. To avoid diverting internal resources, Severn Trent Water engaged IRIS Software Group and its IRIS OpenResourcing iXBRL tagging service.

IRIS Software Group’s OpenResourcing team now tags, validates and returns accounts through a secure online portal, giving Severn Trent Water 24/7 access to upload, track and download files. The change freed internal staff, delivered HMRC-compliant filings months ahead of the deadline, reduced in-house overhead, and provided responsive support—allowing the service to be scaled across Severn Trent Water’s group companies with minimal tax-team involvement.

Severn Trent Water

Robyn Clayton

Assistant Tax Manager