The 31-year-old cab driver picked up two brothers just before 4 a.m. and was taking them to their destination when they told him to make a second stop, police said.
The driver told the men he would have to charge them an additional $7 for the second stop.
The brothers allegedly became angry and refused to pay the extra fare. When the driver stopped the cab, the passenger seated behind him began to choke him while the front seat passenger punched him in the head and body, police said.
The driver was able call his dispatcher for help during the assault and both men ran away, police said. Officers found the suspects shortly after in a nearby wooded area.
Douglas Robinson, 43, of Bridgenorth and John David Robinson, 40, of Peterborough have been charged with assault.