DMV permit test · Iowa
As of October 26, 2026, Iowa teens can take the instruction permit knowledge test at a DMV or county treasurer’s office, at home with a parent proctoring, or at a participating school.
An Iowa instruction permit is available at 14 after the knowledge and vision tests, with written consent from a parent or guardian.
A Class C instruction permit from the Iowa DOT costs $6 and lasts four years (per iowadot.gov, checked on Oct 26, 2026).
Free · no account
OneTryPass wrote these questions from the Instruction Permit for Under Age 18 | Iowa Department of Transportation. Pick an answer to see if you got it; each explanation names the part of the handbook it comes from.
Iowa’s graduated licensing starts at 14. You pass the knowledge and vision tests, and a parent or guardian gives written consent.
Iowa law requires a minimum of twelve months on the permit right before applying, and the last six months must be free of accidents and violations.
A parent, guardian or custodian signs an affidavit for 20 hours of street or highway driving, with 2 hours between sunset and sunrise. The full license later needs 10 more hours, again 2 at night.
From 12:30 a.m. to 5 a.m., an intermediate licensee drives only with an approved licensed companion beside them, unless they carry a waiver for school activities or work.
Iowa drivers may not hold or manually use a phone while driving; hands-free or voice-activated use is the exception. Entering GPS addresses on the move, video calls and streaming are all off limits.
Iowa’s Move Over or Slow Down Law also covers any stopped vehicle showing hazard lights. If you cannot change lanes safely, slow to a reasonable speed below the limit and be ready to stop.
Meeting a bus from the front with amber lights flashing, slow to 20 mph or less and prepare to stop. When it stops with the arm out, stop and stay stopped until the arm is retracted.
From Iowa Driver’s License Manual (MM1170, 07/23/2026) · 2.24 School Buses
The Iowa manual sets 5 feet from a fire hydrant, and none in a marked hydrant red zone. Stop signs need 10 feet and railroad crossings 50 feet.
From Iowa Driver’s License Manual (MM1170, 07/23/2026) · 2.26 Parking Not Allowed
Underage drivers in Iowa are OWI at .02 or more. Revocation lasts at least 60 days, or at least 180 days at .08 or more.
From Iowa Driver’s License Manual (MM1170, 07/23/2026) · 3.8 Alcohol and Drugs — Drivers Under 21
Both headlights are required from sunset to sunrise and any time fog, rain or snow cuts visibility to 500 feet or less. A handy habit: wipers on, headlights on.
Fourteen. The permit is the first of three steps in Iowa’s graduated licensing for drivers under 18: instruction permit, intermediate license at 16 and full license at 17.
A parent or guardian consents in person at the DMV or on form 430018, and the teen passes the knowledge and vision tests.
Sources: Instruction Permit for Under Age 18 · Iowa Code 2026 § 321.180B — Graduated driver’s licenses for persons aged fourteen through seventeen
There are three routes: a DMV or county treasurer’s office, an at-home test proctored by a parent on a computer, or a school in the Skip the Trip program. A passing result is good for 180 days.
The rules leave the passing score to the Iowa DOT, and the pages read for this guide do not state it for the real test, so OneTryPass does not quote one. The DOT’s own practice quiz uses 80%.
Sources: Instruction Permit for Under Age 18 · Online Permit Test (Skip the Trip) · 604.9 Knowledge test · Get an Under 18 Driving Permit, License, or ID
Six dollars for a Class C instruction permit, valid for up to four years.
Source: Driver’s License Fees
Permit holders drive with a parent, guardian or custodian, a licensed family member 21 or older, a driver education instructor, or someone 25 or older with written parental permission, and never with more passengers than seat belts.
After twelve months and 20 logged hours, the intermediate license follows; it bars driving from 12:30 a.m. to 5 a.m. without an approved companion and, unless a parent waives it, limits unrelated minor passengers to one for six months.
Sources: Instruction Permit for Under Age 18 · Iowa Code 2026 § 321.180B — Graduated driver’s licenses for persons aged fourteen through seventeen
Each line is one rule from an official Iowa Department of Transportation page, with the date we read it.
The free questions above are a sample. The pack is the whole question bank, practiced the way the app below shows.
One-time payment
$14.951 year of access · no subscription
Refunds: Full refund within 7 days of purchase, no questions asked.
Yes. A parent with a valid Iowa license applies to proctor the test, and the student uses an internet-connected computer, not a phone or tablet. After passing, the permit is issued at a DMV or county treasurer’s office. Source: official pages "Online Permit Test (Skip the Trip)" and "Instruction Permit for Under Age 18", checked on Oct 26, 2026.
A first moving conviction, crash or restriction violation brings a warning letter and possibly a suspension; a second means 30 days without the permit. Each one pushes the next license step back six months. Source: official page "Instruction Permit for Under Age 18", checked on Oct 26, 2026.
No. OneTryPass writes its own practice questions from the rules in the Instruction Permit for Under Age 18 | Iowa Department of Transportation, and each question names the part of the handbook it comes from so you can check the rule.
No. OneTryPass is an independent practice site and is not part of the Iowa Department of Transportation. The Instruction Permit for Under Age 18 | Iowa Department of Transportation is free at iowadot.gov.
Every rule on this page comes from the Iowa Department of Transportation's own website or handbook. OneTryPass reads the page, writes the rule in plain English and records the date. A rule that passes its re-check date leaves this page on its own until it is read again.
How often each kind of rule is read again: knowledge test, 120 days; minimum age, 365 days; fees, 90 days; if you fail, 180 days; permit rules, 365 days; what to bring, 180 days; test appointments, 60 days; official handbook, 180 days.
Something wrong on this page? Tell us at [email protected] and include the link to the official page that changed.