How Many Questions Are on the Illinois Permit Test? Format, Score, and Retakes

The Illinois written permit test has 35 questions, and you need 28 correct to pass — a score of 80 percent. The questions split into two parts: roughly 20 covering traffic laws and rules of the road, and about 15 covering road sign identification, where you're asked to recognize signs by shape, color, and symbol.

Everything on the test comes from the Illinois Rules of the Road handbook published by the Secretary of State, so that handbook is your study material.

If you're 18, 19, or 20 and working toward your first Illinois license, this is the written exam standing between you and the next step — and it's very passable with the right preparation.

Illinois Permit Test at a Glance

Total questions	35
Correct answers needed	28
Passing score	80%
Questions you can miss	7
Traffic law questions	~20
Road sign questions	~15
Question format	Multiple choice and true/false
Time limit	None
Retake limit	3 attempts within 1 year of your first try
Where you take it	In person at an SOS Driver Services facility
Source material	Illinois Rules of the Road handbook

How the Test Is Structured

Knowing the shape of the exam makes it far less intimidating.

The traffic law portion covers the practical rules you'll actually use: right-of-way at intersections, lane changes and passing, speed limits including school and work zones, parking rules, and Illinois-specific laws such as restrictions on hand-held phone use, the requirements around school buses, and Scott's Law — Illinois's move-over rule for stopped emergency and maintenance vehicles.

The road sign portion is exactly what it sounds like. You're shown signs and asked what they mean, and recognition is based on shape, color, and symbol rather than memorizing a list. Warning signs, regulatory signs, and informational signs all appear.

Because 15 of the 35 questions are signs, sign recognition is worth real study time. It's also the most improvable part of the test, since signs are visual and repetition works quickly.

Two practical notes: questions are drawn randomly from a larger SOS question bank, so no two tests are identical — and there's no time limit, so read carefully rather than rushing.

What Score You Need — and What Happens If You Miss It

You need 28 of 35 correct. That means you can miss up to seven questions and still pass, which gives you a reasonable margin but not a generous one. Guessing your way through isn't a strategy that tends to work.

If you don't pass, it isn't the end of anything. Illinois generally allows you to retake the test, often as soon as the next day, but you're limited to three attempts within one year of your first try. After that you'd need to reapply and pay the fee again.

The sensible response to a failed attempt is to go back to the handbook for a few days rather than immediately retesting on the same shaky knowledge. You've got three attempts — spending one on an unprepared retry is a waste of a chance.

How to Prepare

Start with the official Illinois Rules of the Road handbook, since every question on the exam comes from it. Reading it once cover to cover, then going back over the sign chapter and the right-of-way rules, covers most of what the test asks about.

A few specifics that trip people up:

• Distances and time intervals — signal distance, following distance, how far back to stop for a school bus. These are easy to mix up and easy to test.

• Illinois-specific rules — Scott's Law, hand-held phone restrictions, school bus requirements. Generic driving knowledge won't cover these.

• Signs by sight, not by definition — study them visually. Flashcards beat reading a list.

And go in rested rather than cramming the morning of. There's no time limit, so a clear head is worth more than one more hour of review.

The Adult Driver Education Requirement (Ages 18–20)

If you're 18, 19, or 20 and applying for your first Illinois license, state law (Public Act 98-167, effective July 1, 2014) requires you to complete a six-hour Adult Driver Education Course — provided you haven't previously held a driver's license or completed the classroom portion of a traditional driver education program. The course must be taught by a provider certified by the Secretary of State.

This requirement works in your favor. The course covers traffic laws, right-of-way, signs and signals, and impaired and distracted driving — the same material the written test draws from. Completing your course shortly before you test means the content is fresh, so it makes sense to line those up rather than leaving a long gap between them.

Two timing details worth knowing:

• Per the Secretary of State, the course must be completed within 30 days of your course start date.

• You can start as early as 17 years and 3 months old, though you must be at least 18 to receive your license.

Completing the course doesn't replace the exams — you'll still take and pass the written, vision, and road tests at an SOS facility.

Need the six-hour course anyway? IllinoisAdultDriversEd offers the Secretary of State–approved Adult Driver Education Course fully online for $47 — self-paced, completed on your own schedule, and covering the same ground as the written exam. Start your course →

Frequently Asked Questions

How many questions are on the Illinois permit test? Thirty-five, made up of about 20 traffic law questions and 15 road sign identification questions.

What is the passing score for the Illinois permit test? Eighty percent, meaning 28 correct out of 35. You can miss up to seven questions.

How many times can I fail the Illinois permit test? You're allowed three attempts within one year of your first try. You can often retake as soon as the next day, but after three failures you must reapply. Study the handbook again before retrying.

Is the Illinois permit test timed? No. There's no time limit on the written knowledge test, so you can read each question carefully.

What is the Illinois permit test based on? The Illinois Rules of the Road handbook from the Secretary of State. Every question comes from that material.

Can I take the Illinois written test online? No. The written knowledge test is administered in person at a Secretary of State Driver Services facility.

Do I need the adult driver education course at 18? If you're 18, 19, or 20 and have never held a driver's license or completed the classroom portion of traditional driver ed, yes — Illinois requires a six-hour Adult Driver Education Course from an SOS-certified provider before you can be licensed.

The Bottom Line

Thirty-five questions, 28 correct to pass, split between traffic laws and road signs, all drawn from the Illinois Rules of the Road. Study the handbook, spend extra time on sign recognition, and take the test while the material is fresh.

If you're 18 to 20 and getting your first Illinois license, you'll need the six-hour Adult Driver Education Course anyway — and it covers much of the same ground as the written exam. IllinoisAdultDriversEd offers the Secretary of State–approved course fully online for $47, self-paced and completed on your own schedule. Handle the course requirement and your test preparation together, and you can start today →.