Bigamy is the act of marrying one person while being legally married to another. Polygamy is the practice or custom (often religious) of having more than one wife or husband at a time. Most states prohibit a party from having more than one marriage license at a time, and in most states bigamy is a crime.
In Minnesota, both bigamy and polygamy are prohibited by law. Under Minnesota Statutes Section 609.355, bigamy, which is the act of entering into a marriage with one person while still legally married to another, is considered a crime. A person found guilty of bigamy in Minnesota can face a felony charge, which may result in imprisonment for not more than five years, a fine of not more than $10,000, or both. Polygamy, the practice of having more than one wife or husband at the same time, is not recognized as legal in Minnesota, and the state's marriage laws do not allow for more than one valid marriage license to be held by an individual at any given time. These regulations reflect the state's adherence to monogamous marriage as the only legally accepted form of marriage.