New Mexico Felony Degrees and Sentencing Penalties

New Mexico felony sentencing starts with a statutory “basic sentence” tied to the degree of the offense: life for a capital felony, 18 years for a first-degree felony, 9 years for a second-degree felony, 3 years for a third-degree felony, and 18 months for a fourth-degree felony. That baseline is only the starting point. Judges can move it up or down by as much as a third for aggravating or mitigating circumstances, and separate statutes add mandatory time for firearm use and prior convictions. Good-time credits then determine how much of the resulting sentence is actually served behind bars, and a mandatory parole term follows release.

Basic Sentence by Felony Degree

The Criminal Sentencing Act sets a fixed basic sentence for each felony degree. A capital felony carries either life imprisonment or life without the possibility of release or parole.¹ When the sentence is life with parole eligibility, the person must serve at least 30 years before a first parole hearing.² Life without parole means no hearing, ever.

For noncapital felonies, the standard basic sentences are:³

First-degree felony: 18 years
Second-degree felony: 9 years
Third-degree felony: 3 years
Fourth-degree felony: 18 months

First-degree crimes include first-degree murder and kidnapping. Third-degree covers many property crimes and drug offenses. Fourth-degree sits at the bottom of the felony ladder.

Higher Baselines for Death and Child Offenses

Within each degree, the statute carves out elevated baselines when the crime involves the death of another person or a sexual offense against a child.³

At the first-degree level, a felony resulting in the death of a child and aggravated criminal sexual penetration both carry life imprisonment instead of the 18-year baseline.

At the second-degree level, a felony resulting in death carries 18 years. Second-degree murder falls in this category, since the criminal code classifies it as a “second degree felony resulting in the death of a human being.”⁴ A second-degree sexual offense against a child carries 15 years, and second-degree sexual exploitation of children carries 12 years.

At the third-degree level, a felony resulting in death or a sexual offense against a child each carries 6 years, and third-degree sexual exploitation of children carries 11 years. Even at the fourth-degree level, sexual exploitation of children jumps to a 10-year basic sentence.

Aggravating and Mitigating Circumstances

The basic sentence is a starting point. At a sentencing hearing, the judge decides whether to alter that baseline based on aggravating or mitigating factors.⁵ Mitigating factors can include a defendant’s age, mental health, cooperation with law enforcement, or a minimal role in the offense. Aggravating factors can include victim vulnerability, severity of injuries, or planning.

The alteration cannot exceed one-third of the basic sentence in either direction. For a 9-year second-degree felony, the range runs from 6 years to 12 years. A judge can find mitigating circumstances on their own, but aggravating circumstances require a finding beyond a reasonable doubt by a jury, or by the judge if the defendant waives that right.

Firearm use, prior felony convictions, and hate-crime motivation are excluded from this analysis. Each has its own statute that stacks on top of the adjusted sentence.

Firearm Enhancements

When a firearm is involved, additional mandatory time is added to the basic sentence. The amount turns on what the defendant did with the gun:⁶

Used a firearm during a drug transaction, aggravated burglary, or serious violent offense: 1 year
Brandished a firearm during any noncapital felony: 3 years
Discharged a firearm during any noncapital felony: 5 years

A second or subsequent firearm offense involving a drug transaction, aggravated burglary, or serious violent offense carries a 5-year enhancement regardless of how the gun was used.

Habitual Offender Enhancements

The Habitual Offender Act adds flat years based on prior felony convictions, each of which must have arisen from a separate incident:⁷

One prior felony: add 1 year
Two prior felonies: add 4 years
Three or more prior felonies: add 8 years

These enhancements apply to any noncapital felony, including offenses under the Controlled Substances Act. Layered on top of everything else, they can push a sentence well past the basic-sentence chart. Someone convicted of a standard second-degree felony with three prior felonies starts at 17 years before any aggravating adjustment or firearm enhancement.

Good-Time Credits and Actual Time Served

Very few people serve the full sentence pronounced in court. New Mexico’s meritorious deduction system lets prisoners earn time off, and the earning rate depends on the offense:⁸

Nonviolent offenses: up to 30 days per month, which effectively cuts the sentence in half at the maximum rate.
Serious violent offenses: up to 4 days per month, meaning close to the full sentence is served.

Lump-sum credits are available for completing programs while incarcerated: 90 days for a high school equivalency credential, 120 days for an associate’s degree, 150 days for a bachelor’s degree, another 150 days for a graduate degree, and 30 days for an approved vocational, substance abuse, or mental health program. Total lump-sum awards are capped at one year within any 12-month period.

Credits are not automatic. Disciplinary violations, refusal to work, and failure to participate in recommended programs can strip earned deductions. For a nonviolent third-degree felony with a 3-year sentence, active program participation can reduce the actual stay to roughly 18 months. For a serious violent offense, the 4-day cap means the person will serve nearly all of it.

Mandatory Parole After Prison

Every felony sentence longer than one year is followed by a mandatory parole term.³ The length depends on the degree:

First, second, or third-degree felony: 2 years
Fourth-degree felony: 1 year²

Parole is part of the sentence, not an add-on. The parole board supervises release conditions, and violations can return the person to prison. Even when a judge suspends or defers the prison portion, the parole term still applies based on the degree of the conviction.

Fines and Restitution

Courts can impose fines on top of prison time. The statutory maximums are $15,000 for a first-degree felony, $10,000 for a second-degree felony, and $5,000 for a third- or fourth-degree felony.³

Restitution to victims is separate. When probation or parole is granted, the court requires the defendant to prepare a plan setting payment amounts and a schedule for each victim.⁹ Fines go to the state; restitution goes directly to the person harmed. A restitution order becomes a judgment and lien against the defendant’s property, enforceable like a civil judgment. Failing to follow the plan can be treated as a parole or probation violation.

Consequences That Follow a Conviction

The sentence in court is not the whole picture. Federal law prohibits anyone convicted of a crime punishable by more than one year of imprisonment from possessing firearms or ammunition.¹⁰ Every felony degree in New Mexico crosses that threshold, since even 18 months exceeds one year. The prohibition is federal and applies regardless of the state case’s status.

Voting rights are restored on release. Under a 2023 state law, anyone no longer incarcerated can register to vote, including people still on probation or parole.

A felony record can also affect employment, housing, and professional licensing. Many licensing boards ask about criminal history, and some convictions disqualify applicants. International travel may be restricted as well, since certain countries deny entry to people with felony records, and anyone on probation or parole generally needs permission from a supervising officer to leave the state.

1
Justia. New Mexico Code 31-18-14 – Sentencing Authority; Capital Felonies
2
Justia. New Mexico Code 31-21-10 – Parole Authority
3
Justia. New Mexico Code 31-18-15 – Sentencing Authority; Noncapital Felonies; Basic Sentences and Fines; Parole Authority; Meritorious Deductions
4
Justia. New Mexico Code 30-2-1 – Murder
5
Justia. New Mexico Code 31-18-15.1 – Alteration of Basic Sentence
6
Justia. New Mexico Code 31-18-16 – Use, Brandishing or Discharge of a Firearm
7
Justia. New Mexico Code 31-18-17 – Habitual Offenders; Alteration of Basic Sentence
8
Justia. New Mexico Code 33-2-34 – Eligibility for Earned Meritorious Deductions
9
Justia. New Mexico Code 31-17-1 – Victim Restitution
10
Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons