Reviewed on: January 08,2016
Sentencing Questions

How long do you serve on a 40 yr sentence with 30 yrs in already?

Depending on the prison system that your inmate is in, the typical offender serves 85% of the time imposed.
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Answered by a former federal inmate · 14+ years advising families
✓ Verified answer January 08,2016 · Sentencing Questions
1
Depending on the prison system that your inmate is in, the typical offender serves 85% of the time imposed. This 15% represents "good time" credited when the sentence begins. Assuming that the inmate has all of their good time intact, 85% of 480 months is 408 months of which 360 have been served. That leaves 48 months or exactly four years left to be served.
Accepted Answer Date Created: January 08,2016
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About this answer: This response was prepared by InmateAid’s editorial team in consultation with former inmates who have direct experience with the federal correctional system. InmateAid has served families of the incarcerated since 2012. This is general information only — not legal advice. Last reviewed January 2016.