What the Idaho written test covers and how it is scored

Idaho's written knowledge test has 40 questions drawn from the Idaho Driver's Manual. You must answer at least 32 questions correctly — that is 80 percent — to pass. The test covers traffic laws, road signs, right-of-way rules, safe driving practices, and what to do in emergencies. Every question is multiple choice with four answer options.

The test is administered on a computer at your local Idaho Department of Transportation (ITD) office. You have no time limit, though most people finish in 20 to 30 minutes. If you fail, you can retake it the same day or return another day; Idaho does not impose a waiting period between attempts, but you will pay the test fee each time you sit for it.

The questions come directly from the Idaho Driver's Manual, which is free and available online at itd.idaho.gov. Every topic tested appears in that manual. There are no trick questions or material outside the manual.

Key Takeaways

  • You need a score of 80 percent or higher (32 out of 40 correct) to pass the Idaho written test.
  • All test questions come from the Idaho Driver's Manual, which you can read for free online before you test.
  • The test is taken on a computer at an ITD office with no time limit, and you can retake it the same day if you fail.
  • You must bring a valid form of identification and proof of residency to the ITD office on test day.
  • The test fee is the same whether you pass or fail, so budget for multiple attempts if needed.

What documents and ID you need to bring

Bring one form of primary identification that shows your name, date of birth, and signature. A valid passport, passport card, military ID, or tribal ID all work. If you do not have one of those, bring two forms of secondary ID — a Social Security card plus a birth certificate, or a school ID plus a utility bill in your name.

You also need proof of Idaho residency. This can be a utility bill, lease agreement, mortgage statement, property tax bill, or bank statement dated within the last 60 days and showing your current Idaho address. A piece of mail from a government agency also works. The document must show your name and address.

If you are under 18, bring your parent or legal guardian with you. They must be present when you take the test.

How to prepare using the Idaho Driver's Manual

read or request a printed copy of the Idaho Driver's Manual from itd.idaho.gov. The manual is organized by topic: traffic laws, signs and markings, right-of-way, speed limits, parking, alcohol and drugs, and vehicle equipment. Read it cover to cover at least once. The test questions are pulled directly from this material, so nothing you study will be wasted.

Pay special attention to sections on right-of-way rules, speed limits in different zones, and what different road signs mean. These topics appear frequently on the test. When you see a diagram or a sign in the manual, study it carefully — the test will show you similar images and ask what they mean.

After you read the manual, take practice tests. The ITD website offers a free online practice test that mimics the real test format. Take it more than once. If you score below 80 percent, go back to the manual, reread the sections where you missed questions, and take the practice test again. Repeat until you score 80 percent or higher consistently.

Common mistakes on the Idaho test

The biggest mistake is not reading the manual before the test. Many people assume they already know the rules and skip studying. Idaho's test is specific: it asks about Idaho speed limits, Idaho right-of-way laws, and Idaho road signs. Your knowledge from another state or from general driving experience may not match Idaho's rules exactly.

A second common error is misreading questions. Read each question twice before you answer. Some questions ask what you should do; others ask what you should not do. Missing that word costs you the question. Similarly, some questions ask what a sign means; others ask what you should do when you see it. The difference matters.

Do not guess randomly on questions you are unsure about. Instead, eliminate the obviously wrong answers first, then choose the best remaining option. If you truly cannot decide between two answers, mark the question and come back to it — you have no time limit, so use that advantage.

What happens after you pass

Once you pass the written test, you will receive a learner's permit (also called an instruction permit). This permit allows you to drive only with a licensed adult age 21 or older in the front seat next to you. You cannot drive alone, and you cannot drive between midnight and 5 a.m.

You must hold the learner's permit for at least 6 months before you can take the driving test (the behind-the-wheel test). During those 6 months, you must practice driving and obey all learner's permit restrictions. When you are ready, you will schedule a separate appointment at an ITD office to take the driving test with an examiner.

Keep your learner's permit with you every time you drive. If you are stopped by police and do not have it, you can be cited.

Retaking the test if you fail

If you score below 80 percent, you do not pass. You can retake the test when ready — there is no waiting period. Pay the test fee again and sit for the test on the same day or come back another day, whichever you prefer.

Before you retake it, review the sections of the manual where you struggled. The practice test results will show you which topics gave you trouble. Focus your studying there. Do not straightforward retake the test without studying; the questions are different each time, but they cover the same material, so more study is your best path to passing.

There is no limit to how many times you can retake the test, but each attempt costs the test fee. Budget accordingly if you think you may need multiple tries.

Where to find an ITD office and schedule your test

Idaho has ITD offices in most towns and cities. Find the office nearest you at itd.idaho.gov under "Locations." You can walk in without an appointment at many offices, but call ahead to confirm hours and whether your office takes walk-ins. Some offices are busier than others, so arriving early in the day or on a weekday morning often means shorter wait times.

If you prefer to schedule in advance, call the office directly or use the online scheduling system on the ITD website. Scheduling ahead guarantees your spot and lets you choose a time that works for you.

Bring all required documents and arrive 10 to 15 minutes early. The staff will check your ID and residency proof, answer any last-minute questions, and walk you to the computer where you will take the test.

Frequently Asked Questions

Can I use my phone or notes during the test?

No. The test is proctored, meaning an ITD staff member watches while you take it. You cannot use your phone, notes, the manual, or any other materials. You can only use the computer and the test questions on the screen.

What if I fail the test multiple times?

There is no limit to how many times you can retake it. Each attempt costs the test fee. Between attempts, study the Idaho Driver's Manual more thoroughly, focusing on the topics where you missed questions. Taking the practice test again after studying often reveals whether you are ready to pass.

Do I have to take the written test if I already have a license from another state?

If you are moving to Idaho and already hold a valid driver license from another state, you may be able to transfer it without taking the written test. Visit an ITD office with your out-of-state license and proof of residency to learn your options. Rules vary depending on your age and license type.

How long is my learner's permit valid?

Your learner's permit is valid for one year from the date it is issued. You must pass the driving test and receive your full license before the permit expires. If it expires, you will need to retake the written test and get a new permit.

Can I take the test in a language other than English?

Idaho offers the written test in English only. If you need language support, contact your local ITD office to ask about options or resources that may be available to you.