Under 720 ILCS 570/401, penalties for manufacturing, delivering, or possessing a controlled substance with intent to deliver run from a Class 2 felony carrying 3 to 7 years in prison up to a Class X felony carrying 15 to 60 years. Fines can reach $500,000, or the full street value of the drugs if that figure is higher. Where you land depends on two things: which substance is involved and how much of it there was.1Illinois General Assembly. Illinois Code 720 ILCS 570/401
What Conduct Falls Under Section 401
Three types of conduct trigger the statute: manufacturing a controlled substance, delivering it to another person, or possessing it with the intent to do either. Delivery means a transfer, with or without money changing hands, and an attempted transfer counts the same as a completed one. Possession with intent to deliver is where most contested cases live, and prosecutors usually build it from circumstantial evidence like scales, packaging, cash, or quantities beyond personal use.1Illinois General Assembly. Illinois Code 720 ILCS 570/401
Section 401 treats controlled substance analogs the same as the drugs they mimic. A designer compound engineered to replicate fentanyl carries the same penalties as fentanyl itself.
One boundary matters up front: Section 401 does not cover methamphetamine. Meth cases are prosecuted under a separate statute, the Methamphetamine Control and Community Protection Act (720 ILCS 646). If your charge involves meth, this is the wrong section to read.
Class X Felony Weight Thresholds
The harshest penalties kick in at 15 grams or more of heroin, fentanyl, cocaine, morphine, or LSD, among other listed substances. Prison terms climb through four tiers:1Illinois General Assembly. Illinois Code 720 ILCS 570/401
- 15 to 99 grams: 6 to 30 years
- 100 to 399 grams: 9 to 40 years
- 400 to 899 grams: 12 to 50 years
- 900 grams or more: 15 to 60 years
These are mandatory prison sentences. A judge cannot impose probation, conditional discharge, or periodic imprisonment on a Class X felony. Where you land within each range turns on your criminal history and any aggravating or mitigating factors at sentencing.
One detail changes the math in almost every case: the statute measures the weight of “a substance containing” the drug, not the pure drug. Twenty grams of powder cut with other materials counts as twenty grams. Street drugs are almost always diluted, so the full seized weight is what the prosecutor uses.
Class 1 Felony Weight Thresholds
Below the Class X cutoff, Section 401(c) sets Class 1 felony penalties for mid-range quantities. A Class 1 felony carries 4 to 15 years in prison and a fine of up to $250,000.1Illinois General Assembly. Illinois Code 720 ILCS 570/4012Illinois General Assembly. Illinois Code 730 ILCS 5/5-4.5-30 The gram thresholds vary by substance:
- Heroin, fentanyl, or cocaine: 1 to 14 grams
- Morphine: 10 to 14 grams
- LSD: 5 to 14 grams, or more than 10 but fewer than 15 dosage units
- Peyote, barbiturates, or amphetamine: 50 to 199 grams
- PCP or ketamine: 10 to 29 grams
The one-gram threshold for heroin, fentanyl, and cocaine is low enough to catch a lot of people off guard. A single pressed pill or a gram of powder puts you squarely in Class 1 territory, with up to 15 years of exposure.
Class 2 and Lower Felony Penalties
Section 401(d) applies to delivery of a narcotic drug, LSD, fentanyl, or amphetamine in amounts below the Class 1 thresholds. That is a Class 2 felony: 3 to 7 years in prison and a fine of up to $200,000. In practical terms, delivering even a trace amount of heroin or cocaine is at minimum a Class 2 felony.1Illinois General Assembly. Illinois Code 720 ILCS 570/401
For non-narcotic Schedule I or II substances not otherwise listed, Section 401(e) sets a Class 3 felony. Delivery of a Schedule III substance under Section 401(f) is also a Class 3 felony. Schedule IV substances under Section 401(g) and Schedule V substances under Section 401(h) are Class 4 felonies. Every violation of Section 401 is a felony, regardless of the substance.
Fines and the Street Value Add-On
There are two layers of financial penalty. Each felony class carries a statutory maximum fine, and for the most serious offenses the court can impose a street value fine on top.
For a Class X violation involving 100 grams or more, the fine can reach $500,000 or the full street value of the seized drugs, whichever is greater. For Class X violations under 100 grams, the cap is $500,000 without the street value multiplier. Class 1 maxes at $250,000, Class 2 at $200,000.1Illinois General Assembly. Illinois Code 720 ILCS 570/401
Street value is set using the definition in Section 110-5 of the Code of Criminal Procedure, and it is usually established through law enforcement testimony about retail pricing. Prosecutors push for the highest plausible figure. Court costs, laboratory analysis fees, and other assessments stack on top.
Enhanced Penalties Near Schools, Parks, and Churches
Section 407 bumps the penalty up one full class when the delivery happens within 500 feet of a school, public park, church, or senior care facility. A Section 401(c) Class 1 offense becomes a Class X felony with a fine of up to $500,000. A Section 401(d) Class 2 offense becomes a Class 1 felony. A Section 401(e) Class 3 offense becomes a Class 2 felony.3Illinois General Assembly. Illinois Code 720 ILCS 570/407
The 500-foot measurement is the trap. In urban areas, it is hard to find any location that is not within 500 feet of a protected site, so the enhancement can transform a lower felony into a far more serious charge based purely on where the transaction happened. The enhancement also reaches school buses and times when minors or other protected populations are reasonably expected to be present.
How Much of the Sentence You Actually Serve
Illinois sentence-credit rules decide what fraction of the pronounced term you actually serve. For a Class X conviction involving 100 grams or more, you earn no more than 7.5 days of sentence credit per month, which works out to roughly 75% of the sentence before release eligibility. Some offenses require 85% or even 100%.4Illinois General Assembly. Illinois Code 730 ILCS 5/3-6-3
Lower-level drug felonies that are not subject to the heightened requirements get standard good-conduct credits, which can cut the time served more substantially. The number a judge reads out is not what you serve day-for-day, and the truth-in-sentencing tier is what determines the real exposure. If you are weighing a plea offer, this is where the calculation gets honest.
Consequences That Come With the Conviction
The sentence and fine are not the end of the exposure. A Section 401 conviction pulls in several other consequences automatically.
Property can be seized and forfeited under the Drug Asset Forfeiture Procedure Act (725 ILCS 150). Cash, vehicles, and real estate connected to the offense or representing proceeds from drug sales are all on the table. The state has to prove the connection by a preponderance of the evidence, and the burden rises to clear and convincing evidence if you were acquitted of the underlying criminal charge. Even so, an acquittal does not automatically defeat a forfeiture case, because the forfeiture proceeding is civil and separate from the criminal case.
For non-citizens, a drug delivery conviction is almost certainly a deportation trigger. Any controlled substance conviction, other than a single offense involving possession of 30 grams or less of marijuana, makes a noncitizen deportable, and drug trafficking convictions are classified as aggravated felonies, which eliminates most relief from removal.5Office of the Law Revision Counsel. 8 USC 1227 – Deportable Aliens A defense attorney has a constitutional duty to warn a noncitizen client about these consequences before any guilty plea.
The same conduct can be prosecuted federally. Under the dual sovereignty doctrine, a state prosecution does not block a later federal case for the same acts, and federal thresholds are measured differently. Trafficking 1 kilogram or more of heroin or 5 kilograms or more of cocaine carries a federal mandatory minimum of 10 years to life. If someone dies from using the substance, the federal minimum jumps to 20 years. Prior serious drug felony or violent felony convictions push the minimum to 15 years for one prior and 25 years for two or more. Federal sentences generally cannot be suspended and do not allow parole.6Office of the Law Revision Counsel. 21 USC 841 – Prohibited Acts A Federal prosecutors typically take over cases involving large quantities, interstate activity, organized networks, or firearms, but they have the authority to charge any amount.
A felony drug conviction also creates lasting barriers to employment, professional licensing, public housing, and firearm ownership. Class X felonies and most drug delivery convictions are excluded from Illinois expungement. Federal student aid is no longer affected by drug convictions as of the 2023–24 award year, and that policy remains in place for 2026.7Federal Student Aid. Eligibility for Students With Criminal Convictions