Affidavit of Marriage

An Affidavit of Marriage is a sworn statement confirming that two people are married, used when a marriage certificate is unavailable or when an agency requires additional proof of a marital relationship. The document is common in immigration cases, insurance and benefit claims, name-change matters, and situations involving marriages performed abroad or in informal ceremonies where official records are hard to obtain. A spouse, or a witness with personal knowledge of the marriage, swears under penalty of perjury before a notary public that the couple is married, stating the date and place of the ceremony. For immigration filings, U.S. Citizenship and Immigration Services may accept affidavits from people who attended the wedding or who know the couple as evidence of a bona fide marriage. Because it is secondary evidence, the affidavit typically supplements other proof rather than replacing an available marriage certificate.

An Affidavit of Marriage can be signed by one or both spouses, or by third-party witnesses who have personal knowledge that the couple is married, such as relatives, friends who attended the ceremony, or the officiant. For immigration and benefit cases, agencies often prefer affidavits from disinterested witnesses who can describe the wedding or the couple's shared life, because their statements appear more objective. Each affiant must be an adult competent to take an oath and must base the statement on firsthand knowledge, then sign before a notary public who verifies identity and administers the oath. When the affidavit supports proof of a bona fide marriage, multiple witness affidavits describing specific details of the relationship strengthen the evidence. The affiants swear under penalty of perjury, so they should include only facts they personally know to be true about the marriage.

An Affidavit of Marriage can serve as supporting proof for immigration purposes, but U.S. Citizenship and Immigration Services treats it as secondary evidence rather than a primary record. Primary proof of marriage is a government-issued marriage certificate; when one is unavailable, USCIS may accept sworn affidavits from people with personal knowledge of the marriage, especially in spousal petitions where applicants must show the marriage is genuine. Affidavits are most persuasive when they describe specific facts, such as how the affiant knows the couple, details of the wedding, and observations of the couple's shared life, rather than general assertions. The affiant signs under penalty of perjury before a notary public. Because affidavits alone rarely carry an application, couples should also submit joint financial records, photographs, lease agreements, and other corroborating evidence to meet the bona fide marriage standard.

An Affidavit of Marriage must be notarized to be accepted as a sworn document, because notarization formally administers the affiant's oath and authenticates the signature. The notary public verifies the affiant's identity with photo identification, witnesses the signature, confirms the oath, and completes a jurat with a seal. Without notarization, the document is an unsworn statement that government agencies, insurers, and courts may reject. Some immigration affidavits can take the form of an unsworn declaration under 28 U.S.C. 1746, which substitutes specific penalty-of-perjury language for notarization, but full notarization remains the safer choice for most purposes. Because requirements vary by the agency requesting the affidavit, affiants should confirm whether notarization, an unsworn declaration, or a specific form is expected before signing, and should ensure all facts about the marriage are accurate since the statement is made under penalty of perjury.

An Affidavit of Marriage should include the full legal names of both spouses, the date and place of the marriage, the name of the officiant or ceremony type if known, and the affiant's relationship to the couple and basis of personal knowledge. When used to prove a bona fide marriage, the affidavit should describe specific facts the affiant has witnessed, such as the couple living together, attending family events, or sharing responsibilities, because concrete details are more persuasive than general statements. The affiant swears under penalty of perjury before a notary public that the contents are true. For marriages performed abroad, the affidavit should note the country and any reason an official certificate is unavailable. Because agencies and courts use the affidavit to verify the relationship, accuracy and detail matter, and multiple witness affidavits often accompany other documentary evidence to support the claim.