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Common Law Marriage in Iowa

Iowa recognizes common law marriage based on court decisions, which require a present intent and agreement to be married, continuous cohabitation and a public declaration that the parties are married.

Last checked . General information, not legal advice.

Iowa at a glance

New common law marriages allowed
Yes
Cutoff date
Not abolished
Requirements
Present agreement, cohabitation, public declaration
All three elements must be shown, claims are carefully scrutinized, and the person asserting the marriage bears the burden of proof.

Sources

Last checked

The rules in Iowa

Can a couple form a common law marriage in Iowa today?

Yes. New common law marriages allowed in Iowa: yes.

When did Iowa stop recognizing new common law marriages?

Cutoff date in Iowa: Not abolished.

What are the requirements for a common law marriage in Iowa?

Requirements in Iowa: Present agreement, cohabitation, public declaration. All three elements must be shown, claims are carefully scrutinized, and the person asserting the marriage bears the burden of proof.

Where do the Iowa common law marriage laws come from?

The rules above come from In re Marriage of Martin, 681 N.W.2d 612 (Iowa 2004). Each source is linked on this page. We last checked them in October 2026.

Good to know

The rule comes from Iowa case law rather than a statute.

What this means in practice

Living together for a long time does not by itself create a marriage. Where common law marriage is allowed, the key question is usually whether both partners agreed to be married and acted that way in public, for example by using the same last name, filing joint tax returns or calling each other husband or wife.

A valid common law marriage can only be ended by divorce or death, just like a licensed marriage. There is no informal way to undo it by moving out. The question of whether a marriage existed often comes up later, in a divorce, an inheritance dispute or a claim for spousal benefits.

Couples who want clear proof of their status can sign a written declaration or affidavit of marriage where state law provides for one, or simply obtain a marriage license. Couples who live together and do not want to be married can sign a cohabitation agreement that sets out how property and expenses are handled.

General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.