If you fail to pay your Missouri traffic ticket or miss your court date, additional charges an an arrest warrant could be issued, so it is recommended that you handle your traffic ticket on time.
If you miss your court date or fail to pay your traffic ticket on time, most courts will issue a Failure to Appear (FTA), which is an additional charge that usually comes with an extra fine. Some courts will issue an arrest warrant after the first Failure to Appear, while others will notify you and give you a new court date.
If you cannot pay your traffic ticket on time you should contact the court before your due date to see if an extension or other payment arrangement can be made. Many courts will work with you if you cannot pay on time, but each court handles this differently.