Charges and sentences

Felony and misdemeanor classes in Montana

Montana does not sort crimes into classes or degrees. An offense is a felony when the sentence imposed is death or a state prison term of more than 1 year, and each offense law sets its own prison term and fine. The only general default is for offenses that have no penalty written into their law.1

Checked October 29, 2026 against Montana's own statutes, then by a second reader. General information, not legal advice.

What makes it a felony
In Montana, a felony is an offense for which the sentence imposed is death or imprisonment in a state prison for a term of more than 1 year. A misdemeanor is an offense for which the sentence imposed is a county jail term, a fine, or both, or a state prison term of 1 year or less.1
Felony theft starts at
More than $1,500How theft is graded
When a DUI is a felony
A DUI is a felony when the person has any combination of three or more earlier convictions for DUI (including aggravated DUI or a similar offense in another state), negligent vehicular assault, criminal child endangerment by driving under the influence with a child in the vehicle, or negligent homicide committed while driving under the influence. It is also a felony after any earlier conviction for vehicular homicide or aggravated vehicular homicide while under the influence. The sentence is 13 months to 2 years with the Department of Corrections in a facility or program, followed by a 5-year suspended prison term, and a fine of $5,000 to $10,000, or up to 5 years in a treatment court program with the same fine range. A first through third DUI carries no more than 1 year in jail under § 61-8-1007.2

Misdemeanor classes in Montana

Misdemeanor classes in Montana, with jail ranges and fines
ClassJailFineThe law
Misdemeanor with no penalty setUp to 6 monthsThis default applies when an offense is called a misdemeanor, or has no penalty of its own, and no other law sets the penalty. Jail and fine can be combined.Up to $500Mont. Code Ann. § 46-18-2124

How Montana grades crimes

Montana has no felony classes or degrees. The prison term and fine are written into each offense law, so they differ from one crime to the next, and whether a conviction is a felony depends on the sentence the court imposes.1

For theft, amounts taken in a common scheme or in the same transaction, from one person or several, can be added together to decide the value of the property.3

When theft is a felony in Montana

In Montana, theft of property worth more than $1,500 is punishable by up to 10 years in state prison, a fine of up to $50,000, or both, which makes it a felony when a prison term of more than 1 year is imposed. Theft of a light vehicle carries the same penalty at any value. Theft of $1,500 or less carries up to 6 months in county jail and a fine of up to $1,500 for a first or second offense; a third or later offense carries a $1,500 fine and 30 days to 6 months in county jail.3

Mont. Code Ann. § 45-6-301(7) · Felony theft amounts in every state

DUI in Montana

Montana calls it driving under the influence (DUI). Higher-risk cases, such as an alcohol concentration of 0.16 or more, are called aggravated DUI in § 61-8-1001.

Repeat offenses
A DUI is a felony when the person has any combination of three or more earlier convictions for DUI (including aggravated DUI or a similar offense in another state), negligent vehicular assault, criminal child endangerment by driving under the influence with a child in the vehicle, or negligent homicide committed while driving under the influence. It is also a felony after any earlier conviction for vehicular homicide or aggravated vehicular homicide while under the influence. The sentence is 13 months to 2 years with the Department of Corrections in a facility or program, followed by a 5-year suspended prison term, and a fine of $5,000 to $10,000, or up to 5 years in a treatment court program with the same fine range. A first through third DUI carries no more than 1 year in jail under § 61-8-1007.
Which past offenses count
An earlier conviction counts if less than 10 years passed between it and the new offense. If the new offense is the person's third or later, all earlier convictions count, with no time limit.
Other felony versions
Vehicular homicide while under the influence carries up to 30 years in state prison, a fine of up to $50,000, or both. Aggravated vehicular homicide while under the influence carries 3 to 30 years in state prison, a fine of $10,000 to $50,000, or both. Negligent vehicular assault that causes serious bodily injury, and criminal child endangerment by driving under the influence with a child under 14 in the vehicle, each carry up to 10 years. An earlier conviction for either vehicular homicide offense makes any later DUI a felony.

Mont. Code Ann. §§ 61-8-1002, 61-8-1007, 61-8-1008(1)(a), 61-8-1011(1)(b), 45-5-106, 45-5-107, 45-5-205, 45-5-6282 · Felony DUI rules in every state

After a conviction

Common questions

What is a felony in Montana?

In Montana, a felony is an offense for which the sentence imposed is death or imprisonment in a state prison for a term of more than 1 year. A misdemeanor is an offense for which the sentence imposed is a county jail term, a fine, or both, or a state prison term of 1 year or less.

What is a misdemeanor with no penalty set in Montana?

In Montana, the jail range for a misdemeanor with no penalty set is up to 6 months, and the fine is up to $500. This default applies when an offense is called a misdemeanor, or has no penalty of its own, and no other law sets the penalty. Jail and fine can be combined.

How much theft is a felony in Montana?

In Montana, theft of property worth more than $1,500 is punishable by up to 10 years in state prison, a fine of up to $50,000, or both, which makes it a felony when a prison term of more than 1 year is imposed. Theft of a light vehicle carries the same penalty at any value. Theft of $1,500 or less carries up to 6 months in county jail and a fine of up to $1,500 for a first or second offense; a third or later offense carries a $1,500 fine and 30 days to 6 months in county jail.

Is a DUI a felony in Montana?

A DUI is a felony when the person has any combination of three or more earlier convictions for DUI (including aggravated DUI or a similar offense in another state), negligent vehicular assault, criminal child endangerment by driving under the influence with a child in the vehicle, or negligent homicide committed while driving under the influence. It is also a felony after any earlier conviction for vehicular homicide or aggravated vehicular homicide while under the influence. The sentence is 13 months to 2 years with the Department of Corrections in a facility or program, followed by a 5-year suspended prison term, and a fine of $5,000 to $10,000, or up to 5 years in a treatment court program with the same fine range. A first through third DUI carries no more than 1 year in jail under § 61-8-1007. Vehicular homicide while under the influence carries up to 30 years in state prison, a fine of up to $50,000, or both. Aggravated vehicular homicide while under the influence carries 3 to 30 years in state prison, a fine of $10,000 to $50,000, or both. Negligent vehicular assault that causes serious bodily injury, and criminal child endangerment by driving under the influence with a child under 14 in the vehicle, each carry up to 10 years. An earlier conviction for either vehicular homicide offense makes any later DUI a felony.

These are the general ranges in Montana's sentencing laws. A specific crime can carry its own minimum or maximum, and past convictions can raise the range. This isn't legal advice; a defense lawyer or public defender can tell you what applies to a case.

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Cite this page

Second Chance Index, "Felony and misdemeanor classes in Montana" https://secondchanceindex.com/felony-classes/montana, checked October 29, 2026.

Sources

Each source was opened and checked on October 29, 2026.

  1. Mont. Code Ann. § 45-2-101(23), (42)
  2. Mont. Code Ann. §§ 61-8-1002, 61-8-1007, 61-8-1008(1)(a), 61-8-1011(1)(b), 45-5-106, 45-5-107, 45-5-205, 45-5-628
  3. Mont. Code Ann. § 45-6-301(8)
  4. MCA 46-18-212. When no penalty is specifiedMontana Legislature (Montana Code Annotated 2025)
  5. MCA 61-8-1001. DefinitionsMontana Legislature (Montana Code Annotated 2025)
  6. MCA 61-8-1002. Driving under influenceMontana Legislature (Montana Code Annotated 2025)
  7. MCA 61-8-1007. Penalty for driving under influence -- first through third offensesMontana Legislature (Montana Code Annotated 2025)
  8. MCA 61-8-1011. Driving under influence -- conviction defined -- place of imprisonment -- home arrest -- exceptions -- deferral of sentence not allowedMontana Legislature (Montana Code Annotated 2025)
  9. MCA 45-5-106. Vehicular homicide while under influenceMontana Legislature (Montana Code Annotated 2025)
  10. MCA 45-5-107. Aggravated vehicular homicide while under the influenceMontana Legislature (Montana Code Annotated 2025)
  11. MCA 45-5-205. Negligent vehicular assault -- penaltyMontana Legislature (Montana Code Annotated 2025)
  12. MCA 45-5-628. Criminal child endangermentMontana Legislature (Montana Code Annotated 2025)
  13. MCA 1-2-201. Statutes -- effective dateMontana Legislature (Montana Code Annotated 2025)
  14. Laws of 2025, ch. 583 (SB 19): Generally revising sentencing laws for theftMontana Legislature
  15. Laws of 2025, ch. 226 (HB 267): Revising laws related to driving under the influence; aggravated vehicular homicideMontana Legislature
  16. Laws of 2025, ch. 264 (HB 344): Additional type of driving under the influence offenseMontana Legislature
  17. Laws of 2025, ch. 509 (HB 712): Generally revising restitution lawsMontana Legislature