The difference is in the admission of guilt. Legally speaking, a no contest plea has the same effect as a guilty plea on a conviction when it comes to sentencing.A defendant may plead not guilty, or guilty, or with the consent of the judge, nolo contendere, to any crime with which the defendant has been charged. The only significant difference between a guilty plea and a nolo (no contest) plea is the effect on a related civil issue. The main distinction between "no contest" and "guilty" comes down to whether you accept responsibility for the offense or if you don't appeal a conviction. A no contest plea is similar to a guilty plea. When you plead no contest, you technically admit that you are guilty of the crime being charged. When you plead no contest, you are admitting the facts of the case but not any guilt. If you contest, the clerk magistrate will charge you a court filing fee and find you not responsible.