A Class A misdemeanor in Missouri is the state’s most serious misdemeanor charge, punishable by up to one year in county jail and a fine of up to $2,000.1Missouri Revisor of Statutes. Missouri Code 558.011 – Sentence of Imprisonment, Terms, Conditional Release It sits one step below a felony, and the offenses grouped at this level range from fourth-degree assault to repeat-offender DWI to mid-value theft. A conviction still creates a permanent criminal record that can reach into employment, housing, firearm rights, and travel long after the sentence is served.
What the Sentence Actually Looks Like
The one-year maximum is served in a county jail rather than state prison. Many defendants receive less than the ceiling, and a judge can impose no jail time at all, relying instead on probation and fines. The $2,000 statutory fine is separate from court costs and surcharges, which routinely add several hundred dollars to the total and are effectively unavoidable even when the sentence itself is lenient.
Probation is available for any length between six months and two years for misdemeanor cases.2Missouri Revisor of Statutes. Missouri Code 559.016 – Probation Terms Standard conditions include reporting to a probation officer, staying in the state, random drug testing, community service, and paying fines and restitution on schedule. Judges also tailor conditions to the offense: substance abuse treatment for a DWI, anger management for an assault. Violating any condition gives the court grounds to revoke probation and impose the original jail sentence.
Offenses Charged as Class A Misdemeanors
Assault
Fourth-degree assault is one of the most common Class A misdemeanor charges. It covers recklessly causing physical injury, threatening someone with immediate harm, or making offensive physical contact.3Missouri Revisor of Statutes. Missouri Code 565.056 – Assault in the Fourth Degree Third-degree assault, which involves attempting to cause or recklessly causing physical injury, is a Class A misdemeanor in most situations.4Missouri Revisor of Statutes. Missouri Code 565.070 – Assault in the Third Degree
Fourth-degree domestic assault follows the same pattern but applies when the victim is a domestic partner, family member, or household member. A first or second offense is a Class A misdemeanor. A third conviction for domestic assault against any domestic victim becomes a Class E felony.5Missouri Revisor of Statutes. Missouri Code 565.076 – Domestic Assault in the Fourth Degree, Penalty Prosecutors track that history closely.
Stealing
Missouri draws its theft lines by property value. Stealing property worth $750 or more is a Class D felony. Stealing under $150 with no prior theft convictions is a Class D misdemeanor. Everything in between is a Class A misdemeanor as the default. Prior theft-related convictions can push a low-value theft up to Class A or higher.6Missouri Revisor of Statutes. Missouri Code 570.030 – Stealing
Driving While Intoxicated
A first-offense DWI is a Class B misdemeanor. It escalates to a Class A misdemeanor if you qualify as a prior offender under Missouri law or if a child under seventeen was in the vehicle.7Missouri Revisor of Statutes. Missouri Code 577.010 – Driving While Intoxicated Additional priors can push the charge higher still, eventually reaching felony level.
Resisting Arrest
Resisting or interfering with a lawful arrest for a misdemeanor is itself a Class A misdemeanor. If the underlying arrest is for a felony, or if fleeing creates a substantial risk of serious injury or death, the charge jumps to a Class E felony.8Missouri Revisor of Statutes. Missouri Code 575.150 – Resisting or Interfering With Arrest, Detention, or Stop Resisting during an otherwise minor incident can double the legal exposure in an instant.
Drug Possession
Possessing more than ten grams but no more than thirty-five grams of marijuana is a Class A misdemeanor. Possessing ten grams or less is normally a Class D misdemeanor, but any prior drug conviction from any state pushes it up to Class A.9Missouri Revisor of Statutes. Missouri Code 579.015 – Possession or Control of a Controlled Substance Possession of other controlled substances typically starts at the felony level.
Consequences Beyond the Sentence
A Class A misdemeanor conviction creates a criminal record that shows up in job interviews, apartment applications, and professional licensing decisions. Background checks are standard in healthcare, education, finance, and government hiring, and landlords screen applicants the same way. Federal student aid is one area where things have loosened: drug convictions no longer affect eligibility.10Federal Student Aid. Eligibility for Students With Criminal Convictions
A domestic violence conviction carries a separate federal consequence. Anyone convicted of a misdemeanor crime of domestic violence is permanently barred from possessing firearms or ammunition under federal law.11Office of the Law Revision Counsel. 18 U.S. Code 922 – Unlawful Acts The ban is for life and applies whether the underlying conviction was a misdemeanor or a felony. For gun owners, hunters, and anyone working in law enforcement or security, that alone can upend a career.
International travel is the other common surprise. Canada can deny entry to anyone with a criminal record, and a single DWI conviction is enough to make a traveler inadmissible at the Canadian border, because impaired driving is treated as a serious offense under Canadian law.
Clearing the Record Later
Missouri allows people to petition for expungement of certain misdemeanor convictions, which removes the offense from the public record. You must wait at least three years after completing your entire sentence, including probation or parole. During that waiting period you cannot pick up any new misdemeanor or felony convictions, other than minor traffic violations.12Missouri Revisor of Statutes. Missouri Code 610.140 – Expungement of Certain Records
All fines and restitution must be paid, and you cannot have pending criminal charges. The court also weighs whether your conduct since the conviction shows you are not a threat to public safety. Missouri caps lifetime expungements at two misdemeanor offenses and one felony.12Missouri Revisor of Statutes. Missouri Code 610.140 – Expungement of Certain Records
Not every Class A misdemeanor qualifies. The expungement statute lists eligible offenses and excludes others outright. If your conviction is not on the eligible list, no amount of good behavior will make it expungeable. Checking the statute or asking an attorney before filing can save you the filing fee.
Getting Represented
Anyone charged with a Class A misdemeanor has the right to an attorney, and the court will appoint a public defender at no cost if you cannot afford one. Hiring a private defense attorney typically runs between $1,000 and $10,000, depending on case complexity, whether it goes to trial, and the lawyer’s experience. An attorney can sometimes negotiate a plea to a lower misdemeanor class, secure a suspended sentence, or identify procedural weaknesses in the prosecution’s case. First-time offenders may qualify for diversion programs that end in dismissal on completion. With a year of jail time on the table, going without counsel puts a great deal at risk.