Capital Black Cabs London: 124-driver Hackney TfL migration with structural ULEZ-compliance enforcement.

Capital Black Cabs runs out of Battersea with a fleet that handles a roughly even split between street-hail and pre-booked Hackney work across central London — Bank, City of London, West End, Canary Wharf, and the Knightsbridge corridor. The fleet sat on iCabbi for seven years before the migration. Their migration trigger was the 2026 TfL operator monthly return format introduction — iCabbi's compliance export needed manual reconciliation against the new ULEZ-compliance percentage and booking-source-channel columnar requirements.

TaxiCloud migration ran over 10 working days, the longer cutover window reflecting the complexity of London Hackney work — TfL operator licence handling, ULEZ + Congestion Charge structural fields, the dual rank-and-pre-booked Hackney operating model, and the size of the corporate-account book (84 active corporate accounts at migration). Drivers and vehicles imported over the first 3 days; corporate-account expense-code dictionary normalisation took an additional 2 days; integration testing 2 days; parallel-run weekend; cutover Sunday morning.

First quarter on TaxiCloud: 2026-format TfL operator monthly returns generate in 25 minutes from a single action (vs the 7-9 hours of manual reconciliation finance lead Saskia Pemberton was running on iCabbi). ULEZ daily-charge leakage stopped almost entirely — vehicle ULEZ-compliance status now structurally enforced with route bias, eliminating non-compliant vehicles entering the ULEZ on bookings the dispatch system was unaware would cross the boundary. Corporate-account renewal rates lifted 11 percentage points at the year-end cycle.