Age of Majority in Mississippi: Rights at 18, 21, and Earlier

The age of majority in Mississippi is 21 under the state’s general statute, but a 2023 law moved most of the rights people associate with adulthood down to 18. So the practical answer depends on which right you’re asking about. At 18 you can sign contracts, lease an apartment, buy stocks, vote, and control your own medical records. At 21 you can buy alcohol, buy tobacco, and marry without parental consent. Everything else falls somewhere along that split.

How Mississippi Defines a Minor

Mississippi Code 1-3-27 defines “minor” as anyone under 21 whenever a statute uses the term, unless a different age is specified. The same statute then carves out a major exception: when a law refers to the capacity to enter a contract for personal or real property, “minor” means anyone under 18.¹

That built-in exception is why a 19-year-old Mississippian is simultaneously a “minor” for some statutory purposes and a legal adult for others. The framework isn’t a single line but two lines, and the 2023 overhaul pulled most of the important ones down to 18.

The 2023 Change

Senate Bill 2073 took effect July 1, 2023, and rewrote large sections of the age framework without formally lowering the age of majority itself.² Before the change, many of the rights below were reachable only through court-ordered emancipation or by waiting until 21. Now they arrive automatically at 18.

The bill amended Mississippi Code 93-19-13 to confirm that anyone 18 or older who signs a contract can sue and be sued in their own name as an adult in any legal action arising from that contract.³ It also redefined “adult” as 18 under Mississippi’s Uniform Transfers to Minors Act and under the Guardianship and Conservatorship Act, meaning custodial account assets transfer at 18 and most guardianship duties end at 18.²

What You Can Do at 18

Vote

The 26th Amendment guarantees the right to vote at 18, and no state rule can raise that.⁴ Mississippi residents can register and vote in federal, state, and local elections starting at 18.

Sign Contracts, Rent, and Invest

Under Mississippi Code 93-19-13, anyone 18 or older can sign enforceable contracts involving personal property, real estate, and mortgages.³ That covers residential leases and utility hookups for electricity, gas, water, and internet. The same capacity extends to investment accounts, so an 18-year-old can buy and sell stocks, bonds, and mutual funds directly rather than through a custodial arrangement.²

Enlist in the Military

All branches of the U.S. military accept enlistees at 17 with parental consent and at 18 without it.⁵ Enlistment carries with it the capacity to sign service-related contracts and brings the service member under federal military law.

Possess a Handgun

Mississippi treats handgun possession by anyone under 18 as an act of delinquency, with narrow exceptions for hunting, safety courses, and supervised use on private property.⁶ Those state restrictions drop away at 18. Federal law separately requires buyers to be 21 to purchase a handgun from a licensed dealer; long guns can be purchased from a federal licensee at 18.

Control Your Medical Records

Mississippi’s Uniform Health Care Decisions Act defines “adult” as anyone 18 or older. State provisions letting parents access a child’s hospital, dental, or physician records without the patient’s permission apply only to unemancipated minors under 18. Once you turn 18, providers need your consent before sharing your medical information with a parent. A separate rule lets minors as young as 15 consent to treatment for mental or emotional problems related to alcohol or drugs without parental involvement.⁷

Work Without Child-Labor Limits

Mississippi’s child labor protections apply to workers under 18. At 18, hour restrictions and hazardous-occupation prohibitions no longer apply under state law. A federal rule separately allows employers to pay a training wage of $4.25 per hour to new employees under 20 for their first 90 consecutive calendar days on the job.

Receive Custodial Account Assets

SB2073 moved the transfer age under Mississippi’s Uniform Transfers to Minors Act from 21 to 18, so the custodian now hands over UTMA account assets when the beneficiary turns 18.⁸ Older Uniform Gifts to Minors Act accounts may follow different rules depending on when they were established, so confirm the transfer age with the financial institution holding the assets.

What Still Waits Until 21

Alcohol

You must be 21 to purchase or consume alcohol in Mississippi, consistent with the federal National Minimum Drinking Age Act. There is no exception for parental supervision in a public establishment.

Tobacco and Nicotine

Federal law raised the tobacco purchase age to 21 nationwide in 2019, and Mississippi enforces that threshold. Pending state legislation would extend the same 21-and-older requirement to alternative nicotine products and related accessories.

Marriage Without Parental Consent

Mississippi Code 93-1-5 requires anyone under 21 to have parental consent to obtain a marriage license.⁹ Turning 18 is not enough on its own.

Residual “Minor” References in the Code

Because Mississippi Code 1-3-27 still reads “under twenty-one years of age,” any statute that uses the word “minor” without specifying a different age defaults to the 21 threshold.¹ Scattered provisions throughout the code still treat people between 18 and 20 as minors. Marriage consent is the most common example, but it is not the only one, so a specific statute controls when it names an age.

Paths to Adult Standing Before 18

Emancipation

Mississippi Code 93-19-1 lets a chancery court remove the disability of minority for someone under 18. A petition is filed through the minor’s “next friend,” typically a parent, relative, or other responsible adult, and must describe the minor’s age, circumstances, and reasons for seeking emancipation.¹⁰ The court can grant limited emancipation for a specific act named in the decree, or general emancipation giving the minor the same legal capacity as an 18-year-old for property, contracts, and legal proceedings.⁸

Marriage

Mississippi Code 93-1-5 sets gendered minimum marriage ages: 17 for males and 15 for females, both requiring parental consent.⁹ A judge can waive even those minimums if the parents consent and the court finds sufficient reason. Legislation has been introduced to equalize the minimum at 17 for both genders, but the current statute keeps the older distinction. Marriage before 18 confers some adult rights, including the capacity to make joint financial decisions.

Age-by-Age Quick Reference

15: Females can marry with parental consent; minors can consent to substance-abuse-related mental health treatment without parental involvement.
17: Males can marry with parental consent; military enlistment becomes available with parental consent.
18: Voting; full contractual capacity for property, leases, and investments; state handgun possession; end of child labor restrictions; medical record privacy from parents; UTMA transfers; end of most guardianship duties; military enlistment without consent.
21: Alcohol and tobacco purchases; marriage without parental consent; the default statutory “minor” label no longer applies.

The gap between 18 and 21 is narrower than it used to be, but it still catches people. An 18-year-old in Mississippi can sign a mortgage and cannot buy a beer at the closing. When a statute matters to a decision you’re about to make, check whether it names an age or just says “minor,” because that one word still defaults to 21.

1
Justia. Mississippi Code 1-3-27 – Minor
2
Mississippi Legislature. SB2073 As Sent to Governor – 2023 Regular Session
3
Justia. Mississippi Code 93-19-13 – Persons Eighteen Years of Age or Older, Contractual Capacity
4
Library of Congress. U.S. Constitution – Twenty-Sixth Amendment
5
USAGov. Requirements to Join the U.S. Military
6
Justia. Mississippi Code 97-37-14 – Possession of Handgun by Minor
7
Justia. Mississippi Code 41-41-14 – Physician Treating Minor for Mental or Emotional Problems Resulting From Alcohol or Drugs
8
Mississippi Legislature. SB2073 As Passed the Senate – 2023 Regular Session
9
Justia. Mississippi Code 93-1-5 – Conditions Precedent to Issuance of Marriage License
10
Justia. Emancipation Laws 50-State Survey – Section: Mississippi Emancipation Law