Having more than one wife is illegal in every U.S. state. A person who marries a second spouse while still legally married to the first commits bigamy, a crime that ranges from a minor infraction to a felony carrying up to ten years in prison depending on where it happens. The second marriage itself has no legal existence, which means the second spouse starts out with none of the rights that normally come with being married.
Religious or cultural traditions of plural marriage change none of this. The U.S. Supreme Court decided the question in 1878 in Reynolds v. United States, holding that a sincere religious belief in polygamy does not shield a person from criminal prosecution for marrying again while a first spouse is still alive.1Justia. Reynolds v. United States, 98 U.S. 145 (1878) Courts recognize only the first valid marriage as binding. When a dispute arises over which marriage counts, there is a general presumption favoring the most recent one, but that presumption can be rebutted by evidence that an earlier marriage was never dissolved.
Criminal Penalties for Marrying a Second Spouse
Punishments vary widely by state. Most states treat bigamy as a felony, with prison terms commonly running one to five years, though some authorize sentences up to ten. Georgia and Mississippi are among the states that allow a decade behind bars for a single conviction. Other states treat the offense as a misdemeanor capped at a year or less of jail time. Fines run from a few hundred dollars to tens of thousands, and at least one state authorizes fines above $100,000.
Utah went the opposite direction in 2020, reducing bigamy from a felony to an infraction for most cases. Convictions there typically bring a fine and community service rather than imprisonment. For most of the country, a first-time offender should expect something in the one-to-five-year prison range along with a fine of $5,000 to $10,000.
The person doing the marrying is not always the only one at risk. In some states, a second spouse who knew about the existing marriage can also be prosecuted. Knowingly marrying a bigamist makes you a participant in the crime, not just a victim of it.
Defenses and the Statute of Limitations
The main defense is a good-faith belief that the earlier marriage had ended. If a person reasonably believed their divorce was final before remarrying, some states allow that mistake to defeat the criminal intent needed for conviction. The word doing the work is “reasonably.” Courts want to see evidence of a real effort to confirm marital status, such as pulling court records or obtaining the divorce decree itself. Being told by someone, even a lawyer, that the divorce came through is not always enough.
Many states also provide a statutory defense when the first spouse has been absent and unheard from for a set period, usually five to seven years. A purely religious or spiritual ceremony with no marriage license generally does not qualify as bigamy, because no second legal marriage is created. The crime typically requires either a license or a ceremony that purports to create a legal union.
The clock on prosecution usually starts running from the date of the second marriage. But in states that also criminalize cohabitation after a bigamous marriage, the limitations period may not begin until the couple stops living together. Someone who married bigamously years ago but still lives with the second spouse can remain exposed to prosecution.
Status of the Second Marriage
A bigamous marriage is void from the moment it occurs. Lawyers call this “void ab initio,” meaning the marriage never had any legal existence regardless of how long the couple lived together or whether they raised children. No court order is required to make it invalid; it was never valid.
Even so, most people in this position benefit from getting a formal court order declaring the marriage void. It creates an official record for banks, government agencies, and future marriage applications. There is generally no statute of limitations on seeking that declaration.
Because the marriage has no legal standing, no divorce is available. The second spouse cannot ask a court for alimony or a formal division of marital property under divorce law. Property ownership generally defaults to whoever holds title. Inheritance rights under intestacy laws do not apply either, since those rights depend on a valid marriage at the time of death.
Protection for an Innocent Second Spouse
About half of all states soften this result through the putative spouse doctrine. A person who entered the marriage in genuine good faith, honestly believing it was legally valid, can still receive many of the rights of a lawful spouse. That may include an equitable share of property acquired during the relationship, spousal support in some jurisdictions, and inheritance rights. Once the putative spouse learns the truth, their status ends going forward, but rights that already accrued are typically preserved.
Social Security follows state law on this point. A surviving putative spouse can qualify for survivor benefits on the worker’s record where state law recognizes the status.2Social Security Administration. SSR 80-2 When both a legal spouse and a putative spouse have claims, the SSA apportions benefits between them rather than awarding everything to the legal spouse. For a second spouse who was deceived, that can mean hundreds of dollars a month in survivor income that would otherwise be lost.3Social Security Administration. Social Security Handbook 406 – Effect of Remarriage on Widow(er) Benefits Without putative spouse recognition, the second spouse is ordinarily ineligible for Social Security spousal or survivor benefits, and employer health insurance, pension survivor benefits, and similar programs follow the same rule.
Children of the Marriage
Children do not inherit the legal problems of their parents’ union. Most states have statutes providing that children born of void marriages are legitimate.4Social Security Administration. Social Security Handbook 326 – Legitimacy of a Child Where no automatic legitimacy statute exists, a court can issue an order establishing it.
Both parents keep full legal obligations toward their children regardless of the marriage’s validity. Child support, custody, and visitation are decided under the same family law rules that govern any other parent. A child’s right to inherit from either parent and to receive Social Security benefits on a parent’s earnings record is unaffected.
Immigration Consequences
Federal immigration law is especially unforgiving on this subject. Under the Immigration and Nationality Act, any immigrant coming to the United States to practice polygamy is inadmissible and cannot receive a visa or enter at a port of entry.5Office of the Law Revision Counsel. 8 USC 1182 – Inadmissible Aliens The State Department’s Foreign Affairs Manual applies this ground specifically to immigrant visa applicants intending to practice polygamy here.6U.S. Department of State Foreign Affairs Manual. 9 FAM 302.12 – Ineligibility Based on Other Activities A plural marriage that was lawful in the person’s home country gets no recognition.
Immigrants already in the United States can lose their path to citizenship. Naturalization requires good moral character during a statutory period before filing.7Office of the Law Revision Counsel. 8 USC 1427 – Requirements of Naturalization A bigamy conviction counts as a crime involving moral turpitude, which can disqualify the applicant. Discovery of an undisclosed concurrent marriage during the naturalization process can also lead to denial and trigger removal proceedings.
VAWA Protection for Victims of Bigamy Fraud
An immigrant who married a U.S. citizen or lawful permanent resident without knowing that person was already married has a dedicated remedy. The Violence Against Women Act allows these victims to self-petition for immigration status as an “intended spouse.” USCIS treats the marriage as invalid solely because of the abusive spouse’s bigamy, not because of anything the petitioner did.8U.S. Citizenship and Immigration Services. USCIS Policy Manual, Volume 3, Part D, Chapter 2 – Eligibility Requirements and Evidence
To qualify, the self-petitioner must show that they believed they were entering a legitimate marriage, that a ceremony actually took place, and that the marriage was invalid only because of the other spouse’s preexisting undissolved marriage. They must also show battery or extreme cruelty by the abusive spouse and establish their own good moral character.9U.S. Citizenship and Immigration Services. Abused Spouses, Children and Parents Congress built this route because foreign spouses are especially vulnerable to being trapped by a partner who hides an existing marriage as a tool of control.