Failure to signal on turn citations will vary greatly in costs from jurisdiction to jurisdiction. In practice, most states have statutorily defined maximum fine amounts for a given traffic violation offense, but for the driver, the costs of the ticket in total will also include any number of surcharges, fees, and other financial expenses, ultimately boosting the ticket cost. In general, the only definitive method of determining the fine amount of a failure to signal offense will be to review your citation once law enforcement has issued it. As a very vague estimate, failure to signal tickets can cost drivers an average of $80 to $150 dollars.
It is important to keep in mind that the fine itself may not be an accurate depiction of the costs of conviction for failure to signal. If the following scenarios are applicable to your case, it might be in your best interest to consult with a traffic violations lawyer on contesting the outstanding traffic citation.