How Release Dates Are Calculated in Minnesota

If you or someone you love is doing time in Minnesota, the release date is built into the sentence the court announced. Minnesota uses a determinate sentencing guidelines system with no parole board. For crimes committed on or after August 1, 1993, every executed prison sentence consists of two parts: two thirds served in prison and one third served on supervised release in the community. The court is required to explain both numbers at sentencing. There is no board that decides when release happens - the math of the sentence determines it.

This guide walks through how Minnesota calculates a release date step by step: how the sentencing guidelines grid works, the two thirds and one third rule and how it produces the release date, what disciplinary violations can do to extend the prison portion, how supervised release works and what a violation means, and the separate rules for life sentences and sex offenses. None of this is legal advice, but it will help you read your own time the way the Minnesota Department of Corrections does.

Here is the short version.

Minnesota uses structured sentencing guidelines. The court imposes an executed sentence in months based on where the offense's severity level and the person's criminal history score intersect on the sentencing grid. For offenses committed on or after August 1, 1993, two thirds of that sentence is the term of imprisonment - the time served in prison - and one third is the supervised release term - the time served in the community under supervision. The two numbers are fixed at sentencing. No parole board exists and no discretionary release decision is made. The prison portion can be extended if a person commits disciplinary violations while incarcerated, up to the point of serving the entire sentence in prison. After serving the prison term, the person moves to supervised release for the remaining one third.

Step one: the sentencing guidelines grid

Minnesota's sentencing system starts with the grid.

The Minnesota Sentencing Guidelines include several grids - a standard grid for most felonies, a drug offender grid, and a sex offender grid. Each grid works the same way. The vertical axis lists the severity level of the offense, from the most serious at the top to the least serious at the bottom. The horizontal axis lists the criminal history score, calculated from prior felony convictions, misdemeanor convictions, and other factors. The intersection of the severity level and the criminal history score produces a grid cell showing the presumptive sentence length in months.

Each grid cell also shows a range - the sentence may generally be 15 percent lower or 20 percent higher than the presumptive number without being considered a departure from the guidelines. A judge may sentence within this range without stating reasons. If the judge imposes a sentence outside the range, that is a departure, and the judge must state the substantial and compelling reasons for doing so. Either party may appeal a departure.

Once the judge announces the executed sentence in months, the two thirds and one third calculation produces the prison term and the supervised release term.

Step two: the two thirds rule and how release dates are calculated

The release date in Minnesota is not a discretionary decision. It is a mathematical consequence of the sentence.

For offenses committed on or after August 1, 1993, Minnesota law requires that every executed prison sentence consist of two parts. The first is the term of imprisonment, which is exactly two thirds of the total executed sentence. The second is the supervised release term, which is the remaining one third. When the court imposes a sentence, it is required to state both numbers explicitly and explain to the person being sentenced how much time will be spent in prison and how much time will be spent on supervised release.

Using a simple example: a 24-month executed sentence produces a 16-month term of imprisonment and an 8-month supervised release term. A 36-month sentence produces a 24-month prison term and a 12-month supervised release term. The math is the same regardless of the offense, with limited exceptions for certain sentences.

Because there is no parole board, the release from prison is not a grant - it is a scheduled date. The person is released from prison at the end of the two thirds term and moves to supervised release for the remaining one third, assuming no disciplinary violations have occurred.

Step three: disciplinary violations and extended prison time

The two thirds release date is not always guaranteed. Disciplinary violations during incarceration can push it back.

The Commissioner of Corrections has authority to extend the amount of time a person actually serves in prison if the person violates disciplinary rules while in prison. This extension is called a disciplinary confinement period. The extension can be significant: in the most serious cases, a person who accumulates disciplinary violations could end up serving the entire executed sentence in prison, with no supervised release time served in the community.

The court is required at sentencing to explain that the actual time in prison may be extended by the Commissioner in this way. Families receiving the sentencing explanation should understand that the two thirds figure announced in court is a baseline, not a guarantee.

The Commissioner may also extend the prison term if the person violates conditions of supervised release after release - a violation can result in being returned to prison for the remaining time on the sentence.

Good discipline is the single most direct control a person has over when they leave prison. Every disciplinary violation that results in a confinement period delays the release date by that same number of days.

Step four: supervised release

After the term of imprisonment ends, the person enters the supervised release period. For most sentences, this is the final one third of the executed sentence.

Supervised release in Minnesota is mandatory post-prison community supervision. It is not optional and it is not the same as parole - no board grants it, and the person is not released early by earning it. It is the scheduled final portion of the sentence, served in the community under conditions set by the Commissioner of Corrections.

During supervised release, the person must comply with conditions set by the Commissioner. Standard conditions may include regular reporting, residence restrictions, employment requirements, drug and alcohol testing, and restrictions on contact with victims or other specified persons. The Commissioner sets and modifies the conditions.

If conditions of supervised release are violated, the Commissioner can revoke the supervised release and return the person to prison. The revocation can result in the person serving more of the sentence in confinement than the original two thirds prison term contemplated. The total time - prison plus supervised release revocations - cannot exceed the full executed sentence.

When the supervised release period ends without revocation, the person is discharged from supervision. That discharge date is the end of the total executed sentence.

Step five: life sentences and sex offenses

Certain offenses in Minnesota fall outside the standard two thirds calculation because they carry life sentences.

First-degree murder in Minnesota carries a mandatory life sentence without the possibility of release. There is no parole and no supervised release for this category of sentence. The person serves life in prison.

Certain sex offenses and other serious violent crimes can result in a life sentence with the possibility of release. For these sentences, the court must specify a minimum term of imprisonment based on the guidelines or any applicable mandatory minimum. The person must serve that minimum before being considered for release. The process for release from a life sentence with the possibility of release is separate from the standard two thirds calculation and involves board review.

The sex offender grid governs sentences for sex offenses that fall within the structured guidelines range. For sex offenses that do not result in life sentences, the standard two thirds and one third split still applies, based on the sentence produced by the sex offender grid.

Additionally, Minnesota has a civil commitment system for certain sexually dangerous persons. Civil commitment operates entirely separately from the criminal sentence and can result in continued confinement after the criminal sentence is served.

Putting it together: a worked example

Here is how the pieces fit, using a simple example. None of these numbers are legal advice, but they show the method.

Take a person convicted of a felony that falls at severity level 6 with a criminal history score of 2. The guidelines grid produces a presumptive sentence of 48 months. The judge imposes the presumptive 48-month sentence. By statute, two thirds of 48 months is 32 months, which is the term of imprisonment. The remaining one third - 16 months - is the supervised release term. The court explains at sentencing that the person will spend 32 months in prison and 16 months on supervised release, assuming no disciplinary violations. If the person maintains clean conduct throughout the 32-month prison term, they are released to supervised release at month 32. The supervised release period ends at month 48, at which point the sentence is complete.

If the person receives a disciplinary confinement period of 30 days for a serious violation midway through the sentence, the release from prison is delayed by 30 days - now at approximately month 33 instead of month 32. The supervised release period is correspondingly shortened.

The bottom line for Minnesota

Minnesota release dates are determined entirely by the sentencing guidelines grid and the two thirds and one third calculation. Two thirds of the executed sentence is the term of imprisonment; one third is supervised release. No parole board exists and no discretionary release decision is made. Disciplinary violations can extend the prison term, in the most serious cases up to the full executed sentence. After prison, supervised release is mandatory with conditions set by the Commissioner. Violations of supervised release conditions can result in return to prison.

The practical takeaways are clear. First, understand the sentence announced in court - the court is required to state the prison term and the supervised release term, so both numbers should be on the sentencing record. Second, maintain a clean disciplinary record in prison, because violations directly extend the prison term on a day for day basis. Third, comply with supervised release conditions, because violations can return a person to prison for the remaining sentence balance. Ask the Minnesota Department of Corrections for the sentence computation showing the prison release date and the supervised release discharge date.