If you or someone you love is doing time in Alaska, the question that matters most is when release actually happens. The good news is that Alaska has one of the more predictable systems in the country for most sentences. The law requires the Department of Corrections to deduct good time, and most people serving two years or more are released at the two thirds point on mandatory parole. Discretionary parole, where you apply to get out earlier, is a separate and much narrower path.
This guide walks through how Alaska calculates a release date step by step: how the sentence is structured, when the clock starts, how good time works, the two thirds mandatory parole release that most people get, and the discretionary parole fractions for those who can apply earlier. None of this is legal advice, but it will help you read your own time the way the Department of Corrections does.
Here is the short version.
Alaska requires the Department of Corrections to deduct good time at the rate of one day for every two days served. If you do not lose that good time, you serve about two thirds of your sentence. For terms of two years or more, you are then released on mandatory parole for the period of your accumulated good time, and the Parole Board cannot refuse to release you, though it sets conditions. People convicted of murder are not eligible for mandatory parole. Discretionary parole, where you apply to be released even earlier, is open to only about one third of felony offenders, with eligibility usually at one fourth of the active term, and higher fractions for serious crimes.
Step one: how Alaska structures a sentence
Everything starts with the sentence the court imposes, so that is where release math begins.
Alaska uses a presumptive sentencing system. For most felonies, the law sets presumptive ranges based on the offense and the person's prior record, and the judge sentences within that range unless there are aggravating or mitigating factors. The result is an active term of imprisonment, which is the number that drives your release calculation. Some sentences also include suspended time, which is not served in prison unless probation is later revoked.
The most serious offenses are handled differently. The longest and most serious crimes can carry very long definite terms or mandatory terms, and those change the parole picture, as you will see. But for the large middle of the system, the path is the same: a presumptive active term, reduced by good time, leading to release on mandatory parole.
Step two: when the clock starts
Before you calculate deductions, you need to know your start date, because time counts from when the sentence begins.
In Alaska, the term of confinement commences on the date the sentence is imposed, unless the court specifically provides that you must report to serve on another date. Time you spent in custody before sentencing on the same matter is generally credited toward the sentence, so your calculation reflects that earlier time rather than starting fresh at the prison door.
If you are serving more than one sentence, whether they run concurrently or consecutively changes the math, and the parole eligibility rules treat concurrent and consecutive sentences with their own formulas. Make sure your paperwork reflects the correct start date and any credit for time already served, because an error here moves every later date.
Step three: good time, the engine of release in Alaska
Good time is the heart of Alaska release math, and the rule is unusually clear.
By law, the Department of Corrections must deduct good time from the sentence imposed at the rate of one day for every two days served. In practice that means that if you keep your good time, you serve about two thirds of your sentence before release. This is not discretionary; the statute requires the deduction, and the Department uses it to manage the institutions by giving people a concrete reason to follow the rules.
You can lose good time. If you fail to follow prison rules or do not complete court ordered treatment, good time can be taken away, which pushes your release date later. The key idea is that good time in Alaska is not a small bonus; it is the main mechanism that sets the release date for most people, moving the effective term from the full sentence down toward two thirds.
Step four: mandatory parole, how most people are released
For most sentences, the two thirds point is not just an out date; it is the start of mandatory parole.
By law, a prisoner serving a term of two years or more who is not released earlier on discretionary parole is released on mandatory parole for the period of the good time deductions credited to them. In plain terms, when you reach the two thirds point by accumulating good time, you are released onto mandatory parole supervision for the remaining one third of the sentence. The Parole Board cannot refuse to release you at this point, because you earned it through good time, but the Board does set the conditions of your parole to manage risk.
There is an important exception. People convicted of murder in the first or second degree are not eligible for mandatory parole. For almost everyone else serving two years or more, though, mandatory parole at the two thirds mark is the expected path, with the final third of the sentence served in the community under supervision rather than behind the walls.
Step five: discretionary parole, the earlier door for some
Discretionary parole is a separate path that can get some people out even before the two thirds point, but it is narrow.
Only about one third of felony offenders in Alaska are even able to apply for discretionary parole, and the Board rejects many applications. To apply, you generally need an active term of at least 181 days, a good institutional record, and a workable plan for housing and work. When eligible, you submit an application, and the Board weighs your disciplinary record, the programs you completed, your release plan, the seriousness of the offense, and input from victims and the community.
The eligibility point depends on the offense. For a single sentence under the catch all provision, you generally must serve at least one fourth of the active term, any mandatory minimum, or any court set restriction, whichever is greatest. For a murder conviction, the threshold is two thirds of the active term. For other listed serious felonies, it is one half. Sentences within a presumptive range generally require permission from a three judge panel before you can be considered during the second half of the term. People serving a mandatory 99 year term, or certain definite terms, cannot get discretionary parole at all.
Remember that hitting the eligibility fraction only lets you apply. Approval is far from guaranteed; in recent years the Board has granted only about a quarter of discretionary applications.
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.
Say a person receives a six year active term for a felony that is not murder and not a 99 year or definite term case. Good time accrues at one day for every two days served, so if it is not lost, the person is released at about the four year mark, which is two thirds of six years. Because the term is two years or more, that release is on mandatory parole, and the remaining two years are served in the community under Board conditions. The Board cannot refuse this release, since it was earned through good time.
Now layer in discretionary parole. If that same person qualifies under the catch all provision at one fourth of the active term, they could apply to the Board after serving about a year and a half, seeking release before the mandatory two thirds point. If the Board grants it, they leave earlier on discretionary parole; if it denies the application, they continue toward the mandatory parole release at two thirds. Same sentence, two possible exits, with mandatory parole as the reliable backstop.
The bottom line for Alaska
Alaska is, for most people, a two thirds state. The Department of Corrections must deduct good time at one day for every two days served, so a person who keeps good time serves about two thirds of the sentence and is then released on mandatory parole for the final third, with the Board setting conditions but unable to refuse the release. That predictability is the single most important thing to understand about release dates here.
The exceptions matter. People convicted of murder are excluded from mandatory parole, and the longest mandatory and definite terms change the picture entirely. Discretionary parole can open an earlier door, but only about one third of felony offenders can apply, the fractions run higher for serious crimes, and approval rates have been low. The practical takeaway is to protect your good time, since it is what drives the two thirds release, and to ask the Department of Corrections for your time accounting so you can see your projected mandatory parole date and whether you have any discretionary parole eligibility before it.
Frequently asked questions
How is a release date calculated in Alaska?
Start with the active term the court imposed and the date the sentence began, which is usually the date of imposition unless the court orders otherwise. The Department of Corrections must deduct good time at one day for every two days served, so if you keep your good time you serve about two thirds of the sentence. For terms of two years or more, you are then released on mandatory parole for the remaining third. Discretionary parole can move that date earlier for the minority of people who qualify and are approved.
How does good time work in Alaska?
Alaska law requires the Department of Corrections to deduct good time from the sentence at the rate of one day for every two days served. If you do not lose it, you serve roughly two thirds of your sentence before release. Good time is not optional for the Department to grant; the statute requires it. However, you can lose good time by breaking prison rules or failing to complete court ordered treatment, and losing it pushes your release date later, so protecting it is the most direct way to keep your release on track.
What is mandatory parole in Alaska?
Mandatory parole is the release that most people in Alaska prisons receive. A prisoner serving a term of two years or more who is not released earlier on discretionary parole is released on mandatory parole for the period of accumulated good time, which lands at about the two thirds point of the sentence. The Parole Board cannot refuse to release you, because you earned it through good time, but it does set conditions you must follow. People convicted of first or second degree murder are not eligible for mandatory parole.
Who can apply for discretionary parole in Alaska?
Only about one third of felony offenders in Alaska can apply for discretionary parole. You generally need an active term of at least 181 days, a good institutional record, and a solid release plan. The eligibility point depends on the offense: usually one fourth of the active term under the catch all provision, one half for certain serious felonies, and two thirds for murder. Some sentences require approval from a three judge panel, and people serving a mandatory 99 year term or certain definite terms cannot apply at all.
Mandatory vs discretionary parole in Alaska?
Mandatory parole is automatic at the two thirds point for most people serving two years or more, because it is tied to good time the Board cannot refuse. Discretionary parole is something you apply for, hoping to be released even earlier, and the Board can say no. Discretionary parole is open to only about one third of felony offenders and has had low approval rates in recent years. In short, mandatory parole is the reliable release that good time earns you, while discretionary parole is an earlier but uncertain opportunity.
Does time served before sentencing count in Alaska?
Yes. In Alaska the term of confinement generally commences on the date the sentence is imposed unless the court directs otherwise, and time spent in custody before sentencing on the same matter is generally credited toward the sentence. That credit matters because it shifts your whole calculation earlier, including your projected good time release and any parole eligibility dates. Always check that your time accounting from the Department of Corrections reflects the correct start date and all pre sentence custody credit, because an error there moves every later date.
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