A private hire vehicle, often called a minicab, is a licensed car that must be booked in advance through a licensed operator. Unlike a hackney carriage (the traditional taxi), it cannot be hailed in the street or picked up from a rank — every journey starts with a booking. The vehicle, the driver and the operator who takes the booking are all licensed separately by the local council.
This page explains what makes a vehicle "private hire", why the pre-booking rule exists, and what the operator actually does behind the scenes. The aim is to set out the basics clearly so you know what to expect and what to ask.
What counts as a private hire vehicle
A private hire vehicle is any licensed car used to carry passengers for hire that is not a hackney carriage. The terms "minicab" and "private hire vehicle" mean the same thing. The legal phrase is "private hire vehicle"; "minicab" is the everyday word.
Three licences usually sit behind a single trip. The car itself holds a vehicle licence. The person driving holds a private hire driver's licence. The firm that takes the booking holds a private hire operator's licence. All three are issued by a licensing authority — usually the district or borough council, or Transport for London in the capital. A genuine private hire trip needs all three to line up.
The vehicles vary widely. A typical fleet might include:
- Standard saloons and hatchbacks for one to four passengers.
- Estates or larger cars where luggage space matters.
- Multi-purpose vehicles (MPVs) seating six or seven.
- Minibuses for group travel, which may need a separate type of licence.
- Wheelchair-accessible vehicles, where the design allows a passenger to travel seated in their wheelchair.
Private hire vehicles are not allowed the same exemptions as hackney carriages. They cannot use taxi ranks. They are not permitted to display a roof-mounted "taxi" sign. They usually carry a small licence plate or disc, front and rear, and a council-issued identifier, so a passenger can confirm the car is licensed.
Why every journey must be pre-booked
A private hire vehicle, often called a minicab, is a licensed car that must be booked in advance through a licensed operator.
Pre-booking is the defining rule of private hire. The law treats a vehicle as private hire precisely because the journey is arranged through an operator before it begins. Hailing a minicab in the street, or waving one down as it passes, falls outside how these vehicles are licensed to work.
The reason is mostly about safety and accountability. When a journey is booked through a licensed operator, there is a record of who arranged it, which driver was assigned and which vehicle was used. That record matters if anything goes wrong, if property is left behind, or if a passenger needs to raise a concern afterwards. A street pick-up leaves no such trail.
There is also an insurance dimension. A private hire vehicle's insurance is generally set up around booked work. A driver who accepts an unbooked street fare may be operating outside the terms of that cover, which puts the passenger at risk as well as the driver. This is one of the practical reasons the pre-booking rule is taken seriously.
Pre-booking does not always mean booking days ahead. A booking made minutes before the journey, through an app or a phone call, still counts — what matters is that the operator records and assigns the trip before the car arrives. Some operators offer instant bookings that feel almost like hailing, but the request still passes through the operator's system first.
For passengers, the pre-booking rule has a simple consequence: an unmarked car that pulls up offering a lift you did not arrange should be treated with caution. A legitimately booked vehicle is expected, and the passenger should be able to check the driver's name and the registration against what the operator gave them.
The operator's part in your booking
The private hire operator is the licensed business that takes the booking and sends a vehicle. The operator is the point of contact, even though a separately licensed driver does the driving. In many areas the operator's licence is the one a council can suspend or revoke if standards slip, so the operator carries real responsibility for the service.
When a booking is made, the operator records the details — pick-up point, destination, time and any specific needs — and assigns a licensed driver and vehicle. A passenger can usually ask the operator to confirm the driver's name, the vehicle make and the registration before the car arrives. Checking these on arrival is a sensible habit.
The operator also handles pricing. Private hire fares are not run on a hackney carriage meter in the same regulated way; instead the price is typically quoted or calculated by the operator. Several things shape what you are quoted:
- The distance and expected route.
- The time of day, with late nights, weekends and bank holidays often costing more.
- The type of vehicle, since larger or accessible cars may carry a different rate.
- Waiting time, extra stops or significant luggage.
- Demand at the moment of booking, where some app-based operators use variable pricing.
Because the price is set at booking rather than ticking up on a meter, it is reasonable to ask the operator for a fare or an estimate up front, and to confirm whether it is fixed or subject to change. You can also ask whether card payment is accepted and whether any booking fee applies.
If something goes wrong — a late car, a dispute over the fare, lost property or a complaint about the driver — the operator is the first place to raise it. The booking record held by the operator is what makes that follow-up possible. Where a complaint cannot be resolved directly, the licensing authority that issued the operator's licence can usually be contacted, and its details are generally available through the local council.
In short, the operator ties the system together: taking the booking, assigning a licensed driver and vehicle, setting the price and holding the record that keeps the trip accountable. Understanding that role makes it easier to know who to ask and what to check at each stage of a private hire journey.