"Sanral would like to clarify to road users that it is not compulsory for road users to buy an e-tag for Gauteng e-tolling. Registering with an e-tag is optional," it said in a statement.
It was reported earlier that Sanral was attempting to legally force motorists to buy an e-tag or have their driver's licences taken away.
"Road users are therefore not forced to buy an e-tag, but are encouraged to obtain one to enjoy the cost saving benefits available to e-tag users."
These benefits included a 48% e-tag discount and a frequent user discount.