Most Illinois drivers do not take a written test when they renew. The Illinois DMV written test for renewal, which is really a Secretary of State (SOS) test since Illinois has no DMV, mainly applies to drivers whose record shows traffic convictions and to drivers whose license has been expired for more than a year. A clean record usually means a lighter renewal, and many drivers can even renew online or by mail.
The rules sit in the Illinois Vehicle Code and the Secretary of State's administrative rules, and the SOS can change how they are applied. Here is what the official texts say, what is commonly reported, and how to prepare if your renewal notice asks for a test.
Who has to take the Illinois DMV written test for renewal?
| Your situation | Written test at renewal? |
|---|---|
| Clean record (no traffic convictions) | Usually no. The law lets the Secretary of State set a lighter re-examination for you |
| Traffic convictions on your record | Commonly reported as yes. Check your renewal notice |
| License expired more than 1 year | Yes. The law requires a full examination |
| 79 or older | You must renew in person. The road test starts at 87 (from July 1, 2026) |
| Changing to a different license class | Yes, the test for the new class |
What the law says
Section 6-109 of the Illinois Vehicle Code (625 ILCS 5/6-109, posted on ilga.gov) says renewal applicants with a driving record free of traffic convictions are re-examined in a manner the Secretary of State sets. Everyone else gets the standard examination, which covers eyesight, the ability to read and understand official traffic control devices, and knowledge of safe driving practices and Illinois traffic laws.
The same section requires a full examination when a license has been expired for more than one year.
Traffic convictions and the written test
Illinois news coverage and many driving schools describe the rule this way: if you have a traffic conviction on your record, expect a written test when you renew. We could not confirm the exact look-back period on an SOS page, so read your renewal notice closely. It tells you which tests you need.
Older drivers: the 2026 change
The Road Safety and Fairness Act, Public Act 104-0169, took effect July 1, 2026. Under the updated Section 6-109, drivers 79 and older must renew in person, and the behind-the-wheel road test now starts at age 87 instead of 79. Commercial license holders 75 and older still take a road test at renewal.
Age alone does not add a written test. If you are 79 or older with traffic convictions on your record, though, the conviction rule above can still apply.
Can you skip the office? Safe Driver Renewal
Illinois's administrative rules (92 Ill. Adm. Code 1030.25) set up Safe Driver Renewal, which lets eligible drivers renew by mail, online or by phone. You get a notice about 90 days before your license expires. You are not eligible if, among other things:
- You are under 22 or over 74.
- You have a conviction or court supervision on your driving record.
- You were in a crash with property damage, injury or a death.
- Your license has been expired more than one year.
- Your last two renewals were both done through Safe Driver Renewal or online.
- You hold a commercial driver's license.
If any of these apply, you renew at a Driver Services facility, and that is where any required tests happen.
What the renewal written test looks like
The renewal written test is the same Class D knowledge test new drivers take. The Secretary of State's rules (92 Ill. Adm. Code 1030.80) set it at a minimum of 35 questions, with 80% correct needed to pass. On a 35-question test, that is 28 correct, so you can miss 7.
- Questions come from the Illinois Rules of the Road, free on ilsos.gov. The 2026 edition is current.
- You must show you can read and understand traffic signs and signals.
- Tests are in English, and the Secretary of State may offer other languages based on demand.
- An applicant who cannot read may be given the test orally.
- Anyone caught cheating cannot retake the written test for 30 days.
Illinois DMV written test practice for experienced drivers
In our experience, long-time drivers fail renewal tests for different reasons than teens. They drive well, but they answer from habit, and habit is not always the law. These are the areas to review first:
- Road signs by shape and color, especially warning signs you rarely see.
- Exact numbers in the Rules of the Road: parking distances, school zone speeds and following distance.
- Scott's Law: slowing down and moving over for stopped vehicles with flashing lights.
- Passing bicycles with enough room, as the Rules of the Road describes.
- Alcohol limits and penalties, which have changed over the years.
- Phone rules, since Illinois bans hand-held phone use while driving.
- Download the current Rules of the Road from ilsos.gov.
- Take one practice test cold to see where you stand.
- Read only the chapters behind your wrong answers.
- Retest until you score 90% or better several times in a row.
FAQ
Do I have to take a written test to renew my Illinois license?
Usually not if your record is clean. Drivers with traffic convictions, and drivers whose license has been expired more than a year, should expect a written test. Your renewal notice says which tests you need.
How many questions are on the Illinois written test?
The Secretary of State's rules set the Class D test at a minimum of 35 questions, and you need 80% correct to pass.
Do seniors in Illinois have to take a written test?
Not because of age alone. From July 1, 2026, drivers 79 and older renew in person and the road test starts at 87. Traffic convictions can still bring a written test.
What is the best Illinois DMV written test practice?
Read the current Illinois Rules of the Road and take practice tests based on it, then restudy every topic you miss.
