Can he transport people in his own car for a fee?
Question

                Is it permissible for transport people in my car in return for a fee without having a taxi licence?.
Praise be to Allah.
    Yes, it is permissible for a person to transport someone else 
    on his mount or in his car to a specific place in return for a fee that they 
    agree upon when making this deal. 

    It says in Fath al-Qadeer (9/83): It is permissible to 
    hire animals for riding and carrying goods, because it is a benefit that is 
    clearly defined and it is something common. End quote. 

    In al-Mawsoo’ah al-Fiqhiyyah (1/302) it says: Renting 
    modern means of transportation. The earlier fuqaha’ did not explain the 
    ruling on hiring modern means of transportation such as cars, planes and 
    large ships, rather they discussed the hiring of animals, people and small 
    boats. But the rulings on hiring these things may be applied to modern means 
    of transportation. If there are debates in some cases, such as regarding the 
    situation of the passenger, these may be referred to what is customary. 
    There is no difference between one person and another with regard to hiring 
    cars or planes, unlike animals, because that may be affected by the size of 
    the passengers, whether they are heavy or not. With regard to the luggage 
    that a person brings with him, reference should be made to the conditions; 
    if there are no conditions then the reference point is what is customary. As 
    for the fee, whether that is for transporting people or goods, the reference 
    point is also the conditions, otherwise it is what is customary. End quote. 

    The fact that a person does not own a taxi licence does not 
    mean that it is not permissible for him to transport someone else in return 
    for payment, as stated above, because he is the owner of the vehicle and he 
    may make use of it by selling it, hiring it out and so on. 
And Allaah knows 
    best.