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Idaho DMV Practice Test

Idaho's written permit test is one of the most challenging in the nation, requiring an 85% passing score on a 40-question exam. The Idaho Transportation Department administers the test at licensing offices statewide, covering comprehensive material from the official Idaho Driver's Manual. As the gem state's population continues to grow, understanding local driving conditions—from mountain passes to high desert highways—becomes increasingly important. Idaho's graduated driver licensing program emphasizes thorough knowledge before behind-the-wheel experience, making the written test a critical first step in the licensing process.

Available Idaho practice tests

What's on the Idaho written test

Idaho's permit test emphasizes safe vehicle operation and comprehensive knowledge of traffic laws. Expect detailed questions on vehicle safety equipment, proper mirror adjustment, safe braking techniques, and vehicle maintenance basics. The test covers traffic laws including speed limits, right-of-way rules, proper use of signals, parking regulations, and how to share the road with other vehicles. You'll encounter questions about weather and road conditions specific to Idaho—managing icy winter roads, navigating mountain passes, dealing with reduced visibility from sudden snowstorms, and driving safely on high-desert highways. The test includes questions on driving under the influence, handling emergency situations, and understanding what to do at accident scenes. Sign recognition is also critical, so study all standard and Idaho-specific road signs thoroughly.

Car / standard license

Idaho's written permit test consists of 40 multiple-choice questions covering vehicle and equipment safety, traffic laws, and material from the Idaho Driver's Manual. You must correctly answer at least 34 questions (85%) to pass, which is one of the highest passing thresholds in the United States. The test costs $3, and the instruction permit itself costs $15 for a total initial fee of $18. If you fail, you must wait three days and repay the $3 testing fee before retaking. The test has no specified time limit, though most test-takers complete it in 30-45 minutes. Anyone aged 15 or older may test.

Motorcycle endorsement

Idaho's motorcycle endorsement written test requires a score of 85% to pass, consistent with the state's high standards. The knowledge test costs $5, the skills test costs $25, and a one-time $15 motorcycle endorsement fee applies. The endorsement fee is waived if you add the endorsement within six months of receiving your instruction permit.

Commercial driver license (CDL)

Idaho's CDL knowledge test consists of multiple sections: a General Knowledge test (required for all), plus Air Brakes, Combination Vehicles, and endorsement tests as needed. The total cost is $40 for the application, $29 for knowledge tests, and $70 for the skills test. You must pass each test section with an 80% minimum score. Entry-Level Driver Training (ELDT) compliance is required through a federally registered training provider.

Study tips for the Idaho written test

  • Use the official Idaho Driver's Manual (available free from ITD website) as your primary study resource; the 85% passing score requirement means you need comprehensive knowledge, not just memorization.
  • Focus on vehicle safety and equipment questions—Idaho's test places heavy emphasis on understanding how to maintain and operate vehicles safely in challenging conditions.
  • Study mountain driving techniques thoroughly, as Idaho residents must navigate passes, steep grades, and winding roads; questions on proper gear selection and braking are common.
  • Practice with the free Idaho CDL practice tests online to familiarize yourself with the test format and question types.
  • Remember Idaho's harsh winter conditions—study questions about ice, snow, and reduced visibility scenarios extensively.
  • Don't underestimate the difficulty; the 85% passing threshold is strict, so aim for 90%+ on practice tests to ensure you pass on your first attempt.
  • If you fail, use the three-day waiting period to study your weak areas before retesting.

More Idaho resources

Official agency: Idaho Transportation Department, Driver's License Division.

Frequently asked questions

How many questions are on the Idaho permit test?
Idaho's written permit test has 40 multiple-choice questions covering vehicle safety, traffic laws, and material from the Idaho Driver's Manual.
What's the passing score for the Idaho written test?
You must answer at least 34 questions correctly (85%) to pass Idaho's permit test, one of the highest passing thresholds in the nation.
How much does the Idaho written knowledge test cost?
The written test costs $3, and the instruction permit itself costs $15, for a total initial fee of $18.
How old do I have to be to take the Idaho permit test?
You must be at least 15 years old to take the written permit test in Idaho. Driver training/supervised instruction permits may be issued to applicants 14½ and older.
Can I take the Idaho DMV test in Spanish or other languages?
Information on language options for Idaho's permit test is not widely documented. Contact your local ITD licensing office directly to inquire about language accommodations.
How many times can I retake the Idaho written test?
There is no specified limit on retake attempts. You must wait at least three days between failed attempts and repay the $3 testing fee each time you retest.
Is the Idaho permit test online or in person?
Idaho's permit test is administered in person at Idaho Transportation Department licensing offices statewide. Tests are computer-based at the office location.
What documents do I need to bring to the Idaho DMV?
To apply for a permit after passing your test, bring a completed application, proof of identity (passport or birth certificate), proof of Idaho residency, your Social Security number, and vision screening results if applicable.

Practice tests for other states