The pilot project will be jointly launched soon by credit card company MasterCard, Thailand's Siam City Bank, Suvarnabhumi Taxi Co-operative and the system provider Ingenico International (Thailand).
The alliance believes the new service will be more convenient for passengers, particularly foreign tourists who will no longer have to worry about preparing cash for the taxi fare.
As an added benefit, the system offers tracking by a built-in global positioning system, the Bangkok Post reported on Thursday.
Currently, there are only seven cars offering the service at the Inter Continental Hotel and 26 Bangkok locations, including hospitals, hotels and convention centres.
Passengers will be charged 10 percent extra for the service. Ingenico has already installed the system in 15,000 taxis in Australia, 1,000 in Japan and a few countries in Europe.