Oyster-style bus cards will be rolled out to all West Midlands operators by the spring, according to Centro.
At present the Swift cards are only accepted by a fraction of bus companies in the region. National Express West Midlands said it wanted to ensure the system is ‘as robust as possible’ before adopting it.
Centro said it had made improvements to the system after a trial involving 2,000 customers.
Chris Perry, from the transport authority said: “The equipment we have is future proofed – if customers tell us in the future they want to use bank cards or mobile phones, the technology can be added.”