Marriage or civil union resources

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Marriage or civil union

Learn more about the commonalities and differences in marriage, civil unions, and common law marriages in Illinois.

Learn about obtaining a marriage license and getting married as an undocumented person to a US citizen.

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Information about who can perform a wedding and what happens if someone performs a wedding who is not qualified.

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Common law marriages are not valid in Illinois, but a common law marriage from another state is recognized in Illinois.

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Two people may prefer a civil union over marriage for personal reasons, but there is no legal difference between the two.

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