When someone you love is in federal prison, you trust the math is right. Most of the time it is. But not always. And a small mistake can mean extra months behind bars.

The BOP keeps a sentence computation for every person in custody. It is the official record of how long the sentence is, when it started, and when it is supposed to end. It includes jail time credit, good time, and the projected release date. If any piece of that is wrong, the release date is wrong too.

Here is how to check it.

First, get a copy. Your loved one can ask their counselor or case manager for their sentence computation in writing. It should show the start date, the jail credit, the good time earned, and the projected release date. Get the judgment paperwork too. That is the court's official order, and it is the document everything else should match.

Now compare them, line by line. Does the start date match the judgment? Does the jail credit match the days spent in custody before sentencing? Is the good time what it should be? Federal good time is up to 54 days a year, and it gets prorated. If the numbers do not line up, that is a red flag.

The mistakes we see most are simple. Jail time that never got credited. A start date that is off. Good time that was not applied. A sentence that was supposed to run at the same time as another one but got counted back to back. None of these are rare. They happen when paperwork moves between a courthouse, a jail, and the BOP.

If something looks off, put it in writing. Have your loved one file a formal request for a recalculation and keep a copy of everything. Dates matter. Names matter. Paper trail matters. If the first request does not fix it, there is a process to take it higher, and that is where having the records in order pays off.

You do not need a law degree to catch a math error. You need the paperwork and the patience to compare it line by line.

If the numbers do not add up and you need help putting the challenge together, reach out. Pro Se Help prepares documents for people representing themselves. Free consultation at prosehelpllc.com. This is general information, not legal advice.

Common questions

How do I get a copy of a federal sentence computation?

Your loved one can ask their counselor or case manager for it in writing. It should show the start date, jail credit, good time earned, and projected release date. Get the judgment paperwork too, so you can compare the two line by line.

What is jail credit under federal law?

Time spent in custody before sentencing generally counts toward the federal sentence. If that jail time never got credited, the release date will be wrong. Compare the computation against the actual dates in custody.

How much good time can a federal prisoner earn?

Up to 54 days per year of the sentence imposed, and it gets prorated. If the good time on the computation looks short, that is worth a formal request for recalculation.

Related reading: /blog/first-step-act-earned-time-credits-plain-language-guide —  /blog/how-to-request-your-bop-records-foia-guide