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Assault Laws in Missouri

How assault is charged in Missouri, whether it is a misdemeanor or felony, and the maximum penalties, from the state criminal code.

Short answer: Missouri grades assault in four degrees. Simple assault is assault in the fourth degree: attempting to cause or recklessly causing physical injury, physical pain or illness, purposely putting someone in fear of immediate physical injury, or knowingly making physical contact the person… RSMo §§ 565.050, 565.052, 565.054, 565.056 (versions effective 1/1/2017); §§ 558.002, 558.011

AssaultMissouri grades assault in four degrees. Simple assault is assault in the fourth degree: attempting to cause or recklessly causing physical injury, physical pain or illness, purposely putting someone in fear of immediate physical injury, or knowingly making physical contact the person will regard as offensive or provocative. It is a class A misdemeanor (up to one year in jail and a $2,000 fine), but the fear-of-injury and offensive-contact forms are only a class C misdemeanor (up to fifteen days and $750) unless the victim is a 'special victim'. Knowingly causing physical injury is third-degree assault, a class E felony (up to four years); injuring someone with a deadly weapon or dangerous instrument, or recklessly causing serious physical injury, is second-degree assault, a class D felony (up to seven years). Attempting to kill or knowingly causing or attempting to cause serious physical injury is first-degree assault, a class B felony (five to fifteen years), or a class A felony (ten to thirty years or life) if serious physical injury is inflicted or the victim is a special victim.
First degree: https://revisor.mo.gov/main/PageSelect.aspx?section=565.050&bid=29279 ; second: https://revisor.mo.gov/main/PageSelect.aspx?section=565.052&bid=29281 ; third: https://revisor.mo.gov/main/PageSelect.aspx?section=565.054&bid=29282 . A special victim raises second degree to a class B felony and third degree to a class D felony; 'special victim' is defined in § 565.002. Note: a 2026 law (H.B. 2637 & 3155 / S.B. 999) rewrites this section effective July 1, 2027 (§ 565.019); the text summarized here is the version in effect now. Class penalties (§ 558.011, § 558.002): class A misdemeanor up to one year and $2,000; class B misdemeanor up to six months and $1,000; class C misdemeanor up to fifteen days and $750; class D misdemeanor fine up to $500; class E felony up to four years; class D felony up to seven years; class C felony three to ten years; class B felony five to fifteen years; class A felony ten to thirty years or life.

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FAQ

Is assault a felony in Missouri?
Missouri grades assault in four degrees. Simple assault is assault in the fourth degree: attempting to cause or recklessly causing physical injury, physical pain or illness, purposely putting someone in fear of immediate physical injury, or knowingly making physical contact the person will regard as offensive or provocative. It is a class A misdemeanor (up to one year in jail and a $2,000 fine), but the fear-of-injury and offensive-contact forms are only a class C misdemeanor (up to fifteen days and $750) unless the victim is a 'special victim'. Knowingly causing physical injury is third-degree assault, a class E felony (up to four years); injuring someone with a deadly weapon or dangerous instrument, or recklessly causing serious physical injury, is second-degree assault, a class D felony (up to seven years). Attempting to kill or knowingly causing or attempting to cause serious physical injury is first-degree assault, a class B felony (five to fifteen years), or a class A felony (ten to thirty years or life) if serious physical injury is inflicted or the victim is a special victim.
Can I get a court-appointed lawyer for assault in Missouri?
Missouri's rule on court-appointed lawyers: The state public defender system represents eligible indigent persons. Eligibility is determined by the state public defender (or a person working under the defender) based on the person's 'ability to make bond, his income and the number of persons dependent on him for support.' A person claiming indigency files an affidavit with the court containing the information the public defender commission requires; either party may ask the court where the case is pending to decide whether the public defender may represent the defendant. Knowingly making a false affidavit to obtain services is a class A misdemeanor. The section does not set an application fee. RSMo § 600.086
How much does a lawyer for assault cost in Missouri?
Lawyers set their own fees, and Missouri has rules on how they may charge. See hiring a criminal defense lawyer in Missouri for fee rules, how to check a lawyer's license and free help.
What happens after an arrest for assault in Missouri?
How release before trial works in Missouri: 'That all persons shall be bailable by sufficient sureties, except for capital offenses, when the proof is evident or the presumption great' (Mo. Const. art. I, § 20). By statute, a person charged with a bailable offense may be released on personal recognizance unless the judge finds that release will not reasonably assure the person's appearance; the judge may then impose conditions such as supervised custody, travel or association limits, a bail bond or cash deposit, reporting, or house arrest with electronic monitoring (§ 544.455.1). The judge considers the nature of the offense, the weight of the evidence, family ties, employment, financial resources, character and mental condition, length of residence, criminal record, and record of court appearances (§ 544.455.2). Conditions are reviewed for a person still detained after 24 hours because the person cannot meet them. Mo. Const. art. I, § 20; RSMo § 544.455 What happens after an arrest.
Can a conviction for assault be removed from my record in Missouri?
Each state sets its own rules for sealing or expunging records. See Missouri expungement and record sealing rules.

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.