Payroll migration reconciliation system for a council
The problem
A council needed confidence that payroll outputs matched after a system migration, with teams working through high-volume differences under time pressure.
What we built
A frontend reconciliation system for comparing legacy and new payroll exports, surfacing exceptions, filtering by issue type and giving reviewers a clear workflow.
What changed
- Migration differences made visible and reviewable
- Finance and payroll teams had a shared view of exceptions
- Manual checking replaced with a repeatable reconciliation process