BARRIERS TO STOP ENTRY: Why private hire vehicle caps remain a legal difficulty in England
- Perry Richardson
- 1 hour ago
- 3 min read
Calls to limit the number of private hire vehicles operating in major UK cities have been bubbling away for some time. Following Hong Kong’s decision to impose a hard cap on ride-hailing permits, that chatter has spiked again, but introducing similar restrictions in England would require significant legal reform and political backing.
Unlike hackney carriage licensing, where councils outside London can restrict taxi numbers under certain conditions, there is currently no straightforward legal mechanism allowing licensing authorities to cap private hire vehicle (PHV) licences purely because there are already “too many” vehicles operating in an area.
That distinction has shaped the modern taxi and PHV industry for decades, but only since the advent of mass nationwide ridehail operations has this been a growing debate. Under existing legislation, councils generally have a duty to grant PHV driver, vehicle and operator licences if applicants meet the statutory requirements around safety, medical fitness, criminal background checks and vehicle compliance standards. Authorities cannot usually refuse applications solely on the basis of congestion concerns or market saturation.
The legal framework stems largely from the Local Government (Miscellaneous Provisions) Act 1976 outside London and the Private Hire Vehicles (London) Act 1998 in the capital. Both were created long before app-based ride-hailing platforms transformed the sector.
Hackney carriage licensing operates differently. Local authorities outside London can impose quantity restrictions on taxis if they can demonstrate there is no “significant unmet demand” for additional vehicles. This system does not apply to PHVs.
The difference has become increasingly controversial as app-based operators expanded rapidly across the UK. In London, PHV numbers rose harply during the 2010s as platforms such as Uber and Bolt changed consumer habits. Currently in the capital alone, licensed PHV driver numbers exceed 100,000.
Critics argue the current structure leaves councils with little control over the scale of PHV growth, even where local road networks are already under strain. Concerns have centred on congestion, emissions, kerbside management and declining earnings across parts of the trade.
However, attempts to directly control numbers face several legal and economic obstacles. One of the largest complications is cross-border hiring. Current rules allow drivers licensed in one authority to undertake bookings in another area provided the booking is accepted through their licensed operator. This has created major enforcement challenges for councils attempting to manage local vehicle numbers through stricter standards or licensing conditions.
Some authorities have responded indirectly by tightening vehicle age limits, emissions requirements, CCTV policies or English language assessments. Others have introduced tougher operator conditions aimed at improving compliance and accountability.
Transport for London (TfL) has also implemented enhanced safety and regulatory measures in recent years, including stricter insurance checks and topographical assessments for drivers. But TfL has never introduced a direct cap on PHV licences.
The issue has been examined repeatedly by policymakers. The Law Commission’s long-running review of taxi and private hire legislation proposed significant reform to modernise the sector,
including clearer national standards and updated enforcement powers. However, successive governments have not fully implemented those recommendations.
Any move towards numerical caps would likely require primary legislation from Parliament. Such proposals would also need to address competition law concerns, potential legal challenges from operators and the impact on passengers who rely heavily on app-based transport services.
Industry opinion remains deeply divided Some within the licensed taxi trade argue caps are necessary to protect urban transport networks and restore balance between taxis and PHVs. They point to cities such as Hong Kong, which introduced limits on ride-hailing vehicles amid congestion concerns.
Ride-hailing firms and some PHV driver groups, however, argue that caps could reduce consumer choice, increase fares and restrict flexible earning opportunities during a period of economic uncertainty.
There are also practical questions around how any cap would operate. Policymakers would need to decide whether limits apply nationally, regionally or city by city, how permits would be allocated and whether existing licence holders would gain long-term advantages over new entrants.
For now, most UK authorities remain limited to regulating standards rather than overall supply. But with growing pressure around congestion reduction, net zero targets and urban transport planning, the debate around PHV caps is unlikely to disappear. Hong Kong’s latest intervention may add further momentum to discussions already taking place quietly within parts of the UK transport and licensing sector.
