Understanding the Federal Sentencing Guidelines: What Actually Determines Your Sentence

Key Takeaways:

• The Sentencing Commission promulgates the guidelines under 28 U.S.C. § 994.
• The guidelines are advisory; the court must still calculate the range correctly.
• The sentence must satisfy the 18 U.S.C. § 3553(a) factors — sufficient, but not greater than necessary.

What the Commission does

28 U.S.C. § 994 directs the United States Sentencing Commission to promulgate and distribute guidelines to all courts of the United States and to the United States Probation System, for use by a sentencing court in determining the sentence to be imposed in a criminal case.

How the range is calculated

The guideline range combines the offense level — driven by the offense conduct, quantities, and adjustments — with the defendant's criminal history category. The presentence report calculates the range, objections are resolved, and the final range frames the hearing.

What the court must do

Because the guidelines are advisory, the court may sentence outside the range, but only after correctly calculating it and explaining the sentence under the factors of 18 U.S.C. § 3553(a): a sentence sufficient, but not greater than necessary, to comply with the purposes of sentencing.

Primary sources

• 28 U.S.C. § 994 — text of the statute or rule as published by law.cornell.edu (law.cornell.edu). Verbatim: “shall promulgate and distribute to all courts of the United States and to the United States Probation System— (1) guidelines, as described in this section, for use of a sentencing court in determining the sentence to be imposed in a criminal case”
• 18 U.S.C. § 3553(a) — text of the statute or rule as published by law.cornell.edu (law.cornell.edu). Verbatim: “The court shall impose a sentence sufficient, but not greater than necessary, to comply with the purposes set forth in paragraph (2) of this subsection. The court, in determining the particular sentence to be imposed, shall consider— (1) the nature and circumstances of the offense and the history and characteristics of the defendant; (2) the need for the sentence imposed— (A) to reflect the seriousness of the offense, to promote respect for the law, and to provide just punishment for the offense; (B) to afford adequate deterrence to criminal conduct; (C) to protect the public from further crimes of the defendant; and (D) to provide the defendant with needed educational or vocational training, medical care, or other correctional treatment in the most effective manner;”

Sources listed above were accessed and verified on August 20, 2026. Statutes and rules are quoted from the linked primary pages as published on that date. Information on this site is general in nature and is not legal advice.

Related reading

• Federal Sentencing Mitigation Before the PSR
• Issue Preservation for Federal Appeals
• Federal Pre-Indictment Defense Strategy
• The Depth Library

This article is part of the Corydon Law Research Desk reference on federal criminal procedure. Browse the blog or the depth library.