The Illinois permit test is the written exam given by the Illinois Secretary of State (SOS), not a DMV. It is commonly described as at least 35 questions with 80% needed to pass, which would be 28 correct on 35, so you could miss 7. We could not confirm the format, fees or document list on ilsos.gov for this guide, so treat those details as unofficial and check with the Secretary of State. The questions cover road signs, traffic laws and safe driving from the Illinois Rules of the Road.
Illinois permit test at a glance
| Detail | What to know |
|---|---|
| Agency | Illinois Secretary of State (SOS), Driver Services Department |
| Questions | Unofficial: a minimum of 35, reportedly set by Illinois rule (92 Ill. Adm. Code 1030.80). Confirm with the SOS |
| Pass mark | Unofficial: 80%, which is 28 of 35 |
| Study book | Illinois Rules of the Road (get the current edition from ilsos.gov) |
| Minimum age | 15, enrolled in an approved driver education course |
| Where | In person at an SOS Driver Services facility |
| Online test | Unofficial: not offered as far as we know. Check ilsos.gov |
| Instruction permit fee | Unofficial: $20 (625 ILCS 5/6-118). Confirm the current fee with the SOS |
| Languages | English, plus other languages the Secretary of State offers. Check with your facility |
How many questions are on the Illinois permit test?
The Illinois permit test is commonly reported to have at least 35 questions. The Illinois Administrative Code is reported to set the Class D written test at a minimum of 35 questions, with 80% answered correctly to pass. We could not confirm this on ilsos.gov, so treat it as unofficial.
If the test is 35 questions, you can miss up to 7. Practice-test sites often say about 15 of the questions are road signs. The Secretary of State does not publish that split, but signs are clearly a big share, so do not skip them.
What's on the Illinois permit test
You must show you can read and understand official traffic signs and signals, and the rest comes from the Illinois Rules of the Road. Expect questions like these, and check each number against the current Rules of the Road:
- Road signs: shapes, colors and meanings, including warning and regulatory signs.
- School zones: 20 mph when children are present.
- Parking: at least 15 feet from a fire hydrant and 20 feet from a crosswalk at an intersection.
- Scott's Law: slow down and move over, if safe, for stopped vehicles with flashing lights.
- Bicycles: leave at least 3 feet when passing.
- Alcohol: 0.08 for most drivers, 0.04 for commercial drivers and zero tolerance for drivers under 21.
- Teen rules: permit and GDL curfews, passenger limits and phone bans.
What makes Illinois different
Illinois is one of the few states where the Secretary of State, not a DMV, runs driver licensing. Search for an "Illinois DMV" and you will land on ilsos.gov. That is the official site for the Rules of the Road, facility locations and appointments.
How to study for the Illinois permit test
- Get the current Illinois Rules of the Road from ilsos.gov and read one chapter a day.
- Spend a full session on road signs. They are easy points if you know them.
- Write every number on one page: speeds, distances, ages, hours and alcohol limits.
- Take practice tests, note each miss and reread that section.
- When you score 90% or more on practice tests several times, you are ready.
What to bring and how to book
Many SOS facilities work by appointment, which you can book at ilsos.gov. Check your facility before you go. This list is unofficial, so confirm it with the Secretary of State. Teens applying for an instruction permit generally need:
- Proof of identity, such as a certified U.S. birth certificate or valid U.S. passport.
- Proof of your Social Security number.
- Proof of Illinois residency (check how many proofs the SOS requires for your card type).
- Proof of enrollment in an approved driver education course if you are under 18.
- A parent or legal guardian to sign for you if you are under 18.
- The instruction permit fee (reported as $20; confirm the current amount).
You also take a vision screening. Check the full document list on ilsos.gov before your visit, since the Secretary of State updates it.
Can you take the Illinois permit test online?
As far as we know, no. The Illinois Secretary of State gives the written exam in person at Driver Services facilities, and we could not confirm any online option on ilsos.gov. You can study online with the Rules of the Road and practice tests. Check ilsos.gov in case this changes.
What happens if you fail the Illinois permit test?
You can try again. We could not confirm the retake rules on ilsos.gov, so ask the facility staff when you can come back and whether a fee applies, and restudy the sections you missed.
Illinois permit test FAQ
How many questions on Illinois permit test?
Unofficially, at least 35. Illinois rules are reported to set the Class D written test at a minimum of 35 questions. Confirm with the Secretary of State.
How many questions can you miss on the Illinois permit test?
Unofficially, you need 80%. On a 35-question test that is 28 correct, so you can miss 7.
Is the Illinois permit test hard?
It is fair if you study. Most people who fail skipped road signs or did not memorize the numbers in the Rules of the Road. Practice until you score above 90%.
Do I need to retake the Illinois written test to renew my license?
Not usually. The Secretary of State decides when a renewal needs a written test, so check your renewal notice or ilsos.gov.
