Idaho learner permit and Class D knowledge test
Idaho's Class D knowledge test has 40 questions and you may miss no more than six. A person can be licensed from age 15, but applicants under 17 must complete approved driver training and Idaho's GDL supervised-instruction requirements.
Independent guide. Road to Permit is not affiliated with or endorsed by a DMV, DPS or other government agency. Use the official state links below when a rule, fee or procedure matters.
- 40 / 6questions / maximum misses
- 15minimum licensing age
- 3 dayswait after failed knowledge test
Idaho Class D knowledge-test format
Idaho's Class D knowledge test contains 40 questions. The official handbook says you may miss up to six before failing, and a failed applicant must wait three days and pay the test fee again before retesting.
| questions | 40 |
|---|---|
| maximum misses | 6 |
| retest wait after failure | 3 days |
40 questions
Class D knowledge questions come directly from information in the official handbook.
Seven misses means failure
The handbook says you can miss up to six questions before failing.
The steps to a Idaho driver license
Idaho can license drivers from age 15, but the process depends strongly on age. Applicants under 17 must complete approved driver training and the GDL supervised-instruction period.
- Step 1. Study the current Idaho Driver's Handbook.
- Step 2. Prepare the documents required for your age and credential.
- Step 3. Pass the required vision and knowledge testing.
- Step 4. If under 17, complete approved driver training and the supervised-instruction period before licensing.
Before you go: requirements and documents
Idaho learner-permit requirements
Idaho learner-permit requirements for Class D applicants, including age rules, driver training under 17, GDL supervision, vision and knowledge testing.
Open the requirements guide →Documents for an Idaho learner permit
Prepare Idaho DMV documents for a Class D permit or license, including age/identity, lawful presence and Idaho residency evidence plus youth-specific items where required.
Open the document checklist →Bring acceptable proof of age and identity
Use the current handbook and DMV guidance to confirm which original or certified documents are accepted.
Prepare Idaho residency and lawful-presence evidence
Requirements vary by credential and applicant situation, so use the current DMV checklist.
Fees
Idaho publishes separate charges for knowledge testing, youth training/supervised permits and the Class D skills test.
| knowledge test | $5 |
|---|---|
| DT/Supervised Instruction Permit | $21.50 |
| Class D skills test total | $35 |
See the full Idaho fee guide →
Idaho teen permit and GDL rules
Idaho's GDL program adds training and supervised-practice requirements for drivers under 17.
Complete approved driver training
The handbook says driver training is required for anyone under 17 applying for an Idaho driver license.
Complete 50 supervised hours
At least 10 of the 50 hours must be at night, with a qualified licensed driver supervising.
A traffic conviction can reset the supervised period
The handbook says a violation during the supervised instruction period cancels the permit and starts the minimum six months over with a new permit.
First Idaho driver license for adults
Applicants age 18+ can use Idaho's Class D instruction-permit and testing process without an under-18 liability signer.
Pass the Class D knowledge test
The test has 40 questions and is based directly on the handbook.
Use an instruction permit for supervised practice
Idaho's Class D instruction permit is available from age 17 and allows practice with a licensed adult age 18+ beside the driver.
Complete the skills test
First-time applicants are among those required to take Idaho's skills test.
Appointments and office visits
Idaho DMV offices are operated by county Sheriff's or Assessor's offices. Services and appointment systems vary by location.
Choose a location that handles driver licensing
Some Idaho locations offer only motor-vehicle services while others provide driver-license or combined services.
Check the location's appointment method
The official locator shows appointment links or walk-in information when available.
Verify testing and documents before traveling
County office availability does not replace state eligibility or testing requirements.
Idaho DMV locations for permit and license services
Idaho DMV offices are run by county Sheriff's or Assessor's offices, and the services available differ by location.
Find the right office
Find Idaho county DMV locations for driver-license and permit services and confirm whether each office offers licensing, motor-vehicle services or both.
Open office locations →Check the service first
Office types, appointment rules and testing availability can differ by location. Confirm the exact service before you travel.
Check appointment rules →After the permit: prepare for the road test
Idaho's skills test is required for first-time licensing and for under-17 applicants after approved driver training and the supervised instruction period.
Meet your permit or GDL eligibility first
For under-17 applicants, Idaho says skills-test eligibility dates are strictly enforced.
Bring the required identity and vehicle permissions
The handbook lists documents and vehicle-related items for the skills test.
Failed skills test: wait three days
The handbook requires a three-day wait and repayment of both county and examiner fees.
Open the full road-test guide →
Practice for the Idaho knowledge test
Idaho missions are not live in Road to Permit yet. Use the official ITD handbook and sample test resources with these free guides.
Idaho road signs for the Class D test
Idaho's Class D test draws directly from the Driver's Handbook, including signs and traffic-control rules.
Study road signs →Idaho Driver's Handbook for Class D test study
Idaho's official Driver's Handbook is the primary source for the Class D knowledge test and the state's GDL, instruction-permit and skills-test rules.
Open the handbook study guide →What to study
Use the official handbook as the source of truth, then practice the same subjects in short sessions. These are the major study areas covered across the official guide and Road to Permit resources.
- Study the current Idaho Driver's Handbook
- Use ITD sample questions, not random online tests
- Study signs, rules and safe driving together
- Learn signs by shape, color and meaning
- Include signals and roadway markings
- Use ITD's own sample questions
- 40 questions
- Seven misses means failure
- Failed test: wait three days
Idaho permit test: questions and answers
What is the Idaho knowledge-test format?
The official Idaho Driver's Handbook gives a clear Class D format: 40 questions and no more than six missed answers.
What do I need before I apply in Idaho?
Idaho can license drivers from age 15, but the process depends strongly on age. Applicants under 17 must complete approved driver training and the GDL supervised-instruction period.
Which documents should I prepare?
Idaho county driver-license offices verify age and identity and apply additional documentation rules based on residency, lawful presence and age.
How much does the permit or first license cost?
Idaho publishes separate charges for knowledge testing, youth training/supervised permits and the Class D skills test.
Where do I make an appointment?
Idaho DMV offices are operated by county Sheriff's or Assessor's offices. Services and appointment systems vary by location.
Complete Idaho driver guide
Open the exact part of the licensing process you need. Every page below is backed by official state sources.
Idaho Driver's Handbook for Class D test study
Study the official Idaho Driver's Handbook for the 40-question Class D knowledge test, road signs, licensing rules and safe driving.
Open guide →Idaho learner-permit requirements
Idaho learner-permit requirements for Class D applicants, including age rules, driver training under 17, GDL supervision, vision and knowledge testing.
Open guide →Documents for an Idaho learner permit
Prepare Idaho DMV documents for a Class D permit or license, including age/identity, lawful presence and Idaho residency evidence plus youth-specific items where required.
Open guide →Idaho DMV appointments and office visits
Find an Idaho county DMV office for driver-license, permit and testing services and check whether the location uses appointments, walk-ins or both.
Open guide →Idaho road signs for the Class D test
Study Idaho road signs, traffic signals and pavement markings from the official Driver's Handbook before the Class D knowledge test.
Open guide →Idaho Class D knowledge-test format
Idaho's Class D knowledge test has 40 questions. You may miss up to six before failing; a failed test requires a three-day wait before retesting.
Open guide →Idaho teen permit and GDL rules
Idaho teen licensing under 17 requires approved driver training, a violation-free supervised-instruction period of at least six months and 50 practice hours including 10 at night.
Open guide →First Idaho driver license for adults
First-time Idaho adult Class D applicants use the knowledge and skills testing process, with an instruction permit available for supervised practice.
Open guide →Idaho Class D skills test
Prepare for Idaho's Class D skills test after meeting permit or GDL requirements. A failed skills test requires a three-day wait and repayment of test fees.
Open guide →Idaho Class D permit and test fees
Idaho lists a $5 Class D knowledge test, $21.50 Driver Training/Supervised Instruction Permit and $35 Class D skills test total.
Open guide →Idaho DMV locations for permit and license services
Find Idaho county DMV locations for driver-license and permit services and confirm whether each office offers licensing, motor-vehicle services or both.
Open guide →Official sources
Facts on this hub were checked against the linked state sources on September 30, 2026. Procedures and fees can change, so recheck the official page before you apply.