Idaho Legal Ages

The key age-based rights and duties in Idaho, with the law or official source behind each one: driving, work, school, tattoos, marriage, voting, jury service and more. Add a birth date to see which ages are reached and what comes next. It runs in your browser; nothing is stored.

Sources checked on October 21, 2026.

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Legal ages in Idaho

  1. Age 7

    • Car seat or booster age requirement ends

      Idaho requires a child safety restraint for children 6 and younger; from 7, a seat belt alone meets the law.

      Idaho law · Idaho Code § 49-672(1)

    • Must be enrolled in school

      Idaho requires children to attend school, or approved private or home instruction, from age 7.

      Idaho law · Idaho Code 33-202

  2. Age 14

    • Can work limited hours in non-hazardous jobs (federal rule)

      Federal law lets 14- and 15-year-olds work in permitted non-hazardous jobs, outside school hours and within weekly hour limits.

      Limits: no more than 3 hours on a school day and 18 hours in a school week; 8 hours a day and 40 hours a week when school is out; only between 7 a.m. and 7 p.m. (9 p.m. from June 1 through Labor Day) (29 C.F.R. 570.35).

      Federal rule, applies in every state · 29 CFR 570.2(a)(1)

    • Can work (state minimum age)

      Idaho bars children under 14 from work in factories, stores, restaurants, hotels and similar businesses.

      Any child "over the age of twelve (12) years" may do those jobs during school vacations of two weeks or more. Other jobs have no state minimum. Federal law sets 14 for most employers.

      Idaho law · Idaho Code § 44-1301

  3. Age 14 and 6 months

    • Can get a learner's permit

      Idaho issues a driver training instruction permit at 14 and 6 months to teens enrolled in driver training.

      Teens then hold a supervised instruction permit at least six months with 50 hours of supervised driving, 10 at night.

      Idaho law · Idaho Code § 49-307(4)

  4. Age 15

    • Can get a first license to drive alone

      A daylight-only license for driving alone is available at 15 after driver training and the supervised permit stage.

      Idaho law · Idaho Code § 49-303(1)

  5. Age 16

    • Can leave school (compulsory attendance ends)

      Idaho's compulsory attendance requirement ends at the 16th birthday.

      Idaho law · Idaho Code 33-202

    • Can work any non-hazardous job (federal rule)

      At 16, the general federal minimum working age applies: any job except those the Labor Department declares hazardous.

      Federal rule, applies in every state · 29 CFR 570.2(a)(1)

  6. Age 17

    • Teen license limits end (varies, see rule)

      Idaho limits a licensed driver under 17 to one passenger under 17 for the first six months, so all teen limits have ended by 17.

      Idaho law · Idaho Code § 49-307(11)

  7. Age 18

    • Can work in jobs federal law calls hazardous

      At 18, the federal bar on jobs the Labor Department declares hazardous for minors ends for non-farm work.

      Federal rule, applies in every state · 29 CFR 570.2(a)(1)

    • Can get a tattoo without a parent's consent

      From 18, a person can be tattooed without a parent's consent.

      Idaho law · Idaho Code § 18-1523(3)

    • Becomes a legal adult (age of majority)

      State law makes a person a legal adult, with full rights to contract and sue, at 18.

      Idaho law · Idaho Code § 32-101

    • Can make a will

      A person of sound mind can make a valid will at 18.

      An emancipated minor can also make a will.

      Idaho law · Idaho Code 15-2-501

    • Can marry without a parent's consent

      A person can marry without a parent's or court's consent at 18.

      Idaho law · Idaho Code § 32-202

    • Adult adoptee can get the original birth certificate

      An adult adoptee can request a copy of the original birth certificate from age 18.

      Released after the adoptee completes the state's voluntary adoption registry process; a registered birth parent can ask for their name to be redacted for five years.

      Idaho law · Idaho Code 39-258(10)(a)

    • Can vote

      The U.S. Constitution guarantees the right to vote at 18 in every federal, state and local election.

      Federal rule, applies in every state · U.S. Const. amend. XXVI, § 1

    • Must register with Selective Service (men)

      Men 18 through 25 who are U.S. citizens or live in the United States must register with the Selective Service System.

      Men admitted on a nonimmigrant visa are exempt while they keep that status (50 U.S.C. 3802(a)).

      Federal rule, applies in every state · 50 U.S.C. § 3802(a)

    • Can be called for state jury service

      A person can be called for state jury service from age 18.

      Idaho law · Idaho Code 2-209(1)(a), (2)(a)

    • Can be called for federal jury service

      Federal courts may call U.S. citizens 18 or older who have lived in the judicial district for a year.

      Federal rule, applies in every state · 28 U.S.C. § 1865(b)(1)

    • Charged as an adult by default (juvenile court age ends)

      Idaho tries people charged with a crime in adult court by default from age 18; younger defendants start in juvenile court.

      A juvenile court can transfer some younger defendants to adult court for serious offenses.

      Idaho law · Idaho Code § 20-502(12)

    • Can buy a lottery ticket

      State law bars selling lottery tickets to anyone under 18.

      Idaho law · Idaho Code § 67-7415

  8. Age 21

    • Can drive a commercial truck across state lines

      Federal rules require drivers of commercial vehicles in interstate commerce to be at least 21.

      Federal rule, applies in every state · 49 C.F.R. § 391.11(b)(1)

    • Can buy tobacco or vapes

      Federal law bars any retailer from selling cigarettes, vapes or other tobacco products to anyone under 21, in every state.

      Federal rule, applies in every state · 21 U.S.C. § 387f(d)(5)

    • Can buy alcohol

      Federal highway funding law withholds funds from any state that lets anyone under 21 buy alcohol or possess it in public, so every state sets 21.

      Federal rules let states exempt possession (not purchase) for a religious purpose, with a parent, spouse or legal guardian 21 or older, for medical use, in private clubs, or in lawful employment (23 C.F.R. 1208.3).

      Federal rule, applies in every state · 23 U.S.C. § 158(a)

    • Under-21 credit card limits end (no cosigner or independent income needed)

      Under 21, a card issuer may open a credit card only with a cosigner or proof that you can repay on your own.

      Federal rule, applies in every state · 15 U.S.C. § 1637(c)(8)

  9. Age 25

    • Can serve in the U.S. House

      The Constitution sets 25 as the minimum age for the U.S. House of Representatives.

      Federal rule, applies in every state · U.S. Const. art. I, § 2, cl. 2

  10. Age 30

    • Can serve as governor

      Idaho's constitution requires the governor to be at least 30 years old.

      Idaho law · Idaho Const. art. IV, § 3

    • Can serve in the U.S. Senate

      The Constitution sets 30 as the minimum age for the U.S. Senate.

      Federal rule, applies in every state · U.S. Const. art. I, § 3, cl. 3

  11. Age 35

  12. Age 62

  13. Age 65

    • Eligible for Medicare by age

      Medicare hospital insurance by age begins at 65 for people entitled, or who would be entitled, to Social Security or Railroad Retirement benefits.

      Federal rule, applies in every state · 42 U.S.C. § 426(a)

  14. Age 67

  15. Age 70

    • Can ask to be excused from jury service because of age

      From age 70, a person can ask to be excused from jury service because of age.

      The excuse is permanent when requested on the juror questionnaire.

      Idaho law · Idaho Code § 2-212(2); I.C.A.R. 63(e)(i)

  16. Age 73

    • Retirement-account minimum withdrawals begin

      Required minimum distributions from traditional retirement accounts begin at 73 for people who turn 72 after 2022.

      Federal rule, applies in every state · 26 U.S.C. § 401(a)(9)(C)(v)

Rules with no set age in Idaho

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