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Idaho permit test essentials
Last verified September 28, 2026 against the official Idaho Driver’s Manual (July 2026).
Study for the Idaho knowledge test with free practice questions written from the official manual.
Practise Idaho questions free Your checklist in the app Road signs
Quick facts
- Questions on the test
- 40Official source, checked September 23, 2026
- Correct answers to pass
- 34 (85%)Official source, checked September 23, 2026
- Earliest age for a learner permit
- 14½ At 14½ you can get a Driver Training permit to take an approved driver training program (required under 17). A Class D instruction permit is for ages 17 and older.Manual PDF p. 15, Driver training permits
- Permit fee
- $20 Class D instruction permit. Driver training and supervised instruction permits cost $21.50 ($16.50 for parent-led driver training).Manual PDF p. 5, Fees
- Knowledge test fee
- $5 Knowledge test fee (you pay it again for a retest).Manual PDF p. 5, Fees
- If you fail the knowledge test
- 3 days If you fail the knowledge test, you must wait three days to retest and pay the test fee again.Manual PDF p. 32, Knowledge test
- What to bring
- 6 kinds of documents: see your DMV checklist.
Numbers to know
As the Idaho manual states them; these often come up on the test.
- 0.08
Blood alcohol limit, 21 and older
Driving under the influence means a BAC of .08 or more if you are 21 or older.
Manual PDF p. 131, Driving under the influence - 0.02
Blood alcohol limit, under 21
Under 21, a BAC of .02 or more is driving under the influence.
Manual PDF p. 131, Driving under the influence - 3 seconds
Following distance
The three-second rule is the minimum; increase it at high speeds or in bad weather.
Manual PDF p. 79, Following distances - 100 feet
Signal before you turn
Signal at least 100 feet before turning in business or residential areas, or five seconds on freeways and highways.
Manual PDF p. 72, Signaling - 500 feet
Dim high beams for oncoming traffic
Dim your headlamps 500 feet before meeting another vehicle.
Manual PDF p. 43, Headlamps - 200 feet
Dim high beams behind a vehicle
Dim your headlamps 200 feet before overtaking another vehicle.
Manual PDF p. 43, Headlamps - 15 feet
No parking near a fire hydrant
When you park, stay at least 15 feet from a fire hydrant.
Manual PDF p. 81, Parking - 15 to 50 feet
Stopping at a railroad crossing
When you must stop at a railroad crossing, stop within 50 feet but no closer than 15 feet to the nearest rail.
Manual PDF p. 60, Railroad crossings - 6 months
How long you hold the permit
Under 17: complete a violation-free supervised instruction period of at least 6 months.
Manual PDF p. 19, Graduated Driver’s License (GDL) program - 50 hours
Supervised practice
At least 50 hours of supervised driving, 10 of them at night.
Manual PDF p. 19, Graduated Driver’s License (GDL) program - 21 or older
Your supervising driver
During the supervised period, drive with a licensed driver at least 21 in the front seat beside you.
Manual PDF p. 19, Graduated Driver’s License (GDL) program - 20/40
Vision standard
You need 20/40 vision in at least one eye, with or without glasses or contacts.
Manual PDF p. 32, Medical/visual screening
Your Idaho DMV checklist
Tick each item as you get it ready. Your ticks stay on this device only.
Documents to bring
- Manual PDF p. 22, Proof of age & identity
- Manual PDF p. 21, Documents
- Manual PDF p. 24, Proof of Idaho residency
- Manual PDF p. 21, Documents
- Manual PDF p. 21, Documents
- Manual PDF p. 21, Documents
Fees
Tests at the office
Parent or guardian (under 18)
Appointment and visit
Rules and fees can change. Check with the Idaho DMV before you go.
Questions people ask
How many questions are on the Idaho permit test?
The Idaho knowledge test has 40 questions. To pass you need 34 (85%) correct answers.
How old do you have to be to get a learner permit in Idaho?
At 14½ you can get a Driver Training permit to take an approved driver training program (required under 17). A Class D instruction permit is for ages 17 and older.
How much does a learner permit cost in Idaho?
$20. Class D instruction permit. Driver training and supervised instruction permits cost $21.50 ($16.50 for parent-led driver training).
What happens if I fail the Idaho permit test?
If you fail the knowledge test, you must wait three days to retest and pay the test fee again.
What documents do I need for a Idaho learner permit?
Proof of age and identity. Under 18, a parent or guardian can show their own photo ID with your certified original birth certificate. Your Social Security card or number (it is verified with Social Security). Proof of your Idaho address dated within 1 year, such as a lease, utility bill, employment or school enrollment record. Proof of U.S. citizenship, or lawful presence documents if they apply to you. Under 18: a Verification of School Compliance (VOC) form, a high school diploma or a GED. Under 17: proof you completed driver training.