Bona Fide Marriage: Writing a Support Letter for Friends
Bona fide marriage support letter: what the term means to USCIS and how a friend or relative can write a clear, truthful letter for a couple’s case.
The short answer
A bona fide marriage is one entered into in good faith, not to evade immigration laws, by spouses who intended to build a life together when they married. A support letter from someone with personal knowledge can add detail. It should say who you are, how you know the couple and what you saw yourself, and it should end with a signed statement made under penalty of perjury.
At a glance
- USCIS asks whether the marriage was entered into in good faith and whether the spouses intended to build a life together when they married.
- The couple’s own records carry the case: a joint lease or property, shared finances and birth certificates of their children. A friend’s letter adds detail to these records. It does not replace them.
- USCIS says a third-party affidavit must contain the writer’s full name and address, date and place of birth, and details of how the writer knows about the marriage.
- Write only what you saw or heard yourself. A statement that is wrong or cannot be backed up can hurt the application.
- The Policy Manual does not require a notary. A signed declaration under penalty of perjury (28 U.S.C. 1746) is the usual way to make a statement sworn without one.

What “bona fide marriage” means
“Bona fide” is Latin for “in good faith.” In a marriage-based green card case, the USCIS Policy Manual says the marriage must have been entered into in good faith and not for the purpose of evading immigration laws, and that the spouses intended to build a life together when they married. The couple has to show this.
USCIS can ask for more evidence, send a request for evidence, or interview the spouses. A finding that a person tried to obtain immigration benefits through a sham marriage can bar later petitions (8 U.S.C. 1154(c)), so the record should be accurate and complete.
Evidence that comes from the couple
The Policy Manual lists the kinds of evidence that show a marriage is genuine. Letters from friends are one item on that list. The couple’s own documents usually come first.
- Documents showing joint ownership of property.
- A lease showing joint tenancy of a common home.
- Records showing that the spouses combine their finances, such as joint bank statements, joint accounts or joint insurance policies.
- Birth certificates of children born to the couple.
- Photographs of the wedding and of the couple together over time.
- Affidavits of third parties with personal knowledge of the relationship.
What a support letter should contain
The Policy Manual says a third-party affidavit must contain the writer’s full name and address, date and place of birth, and details explaining how the writer knows about the marriage. The regulation that lists affidavits for certain marriages also asks for the writer’s relationship to the spouses, if any (8 CFR 204.2(a)(1)(i)(B) and (iii)(B)). A letter built on these points can follow these steps.
- Heading. Put your name, address and the date at the top. Say what the letter is for and name the couple. “To whom it may concern” is acceptable.
- Who you are. Give your full name, date and place of birth, country of citizenship, country of residence and occupation. State your relationship to the spouses, if any.
- How you know the couple. Say how and when you met them, how often you see or speak to them, and which events you attended, such as the wedding, a birthday or a baby shower.
- What you saw yourself. Describe events that show the marriage is real. If the couple lives together, this may be a shared home, a joint bank account, time spent together at a place of worship or in classes, introducing each other to friends, or plans for children. If one spouse lives abroad, it may be visits and trips, meeting each other’s families and steps the couple took to live together.
- Closing. End with a short, polite closing. Add the statement “I declare under penalty of perjury that the foregoing is true and correct. Executed on (date),” print your name and sign above it with a pen.
- Attachments. Add a copy of your valid government-issued photo ID. Add photographs of you with the couple at the events you described, in date order.
Rules for the writer
- Describe only events you took part in or saw. Events that can be checked, for example with a photo or a date, are safer to describe than events that cannot.
- Use your own words and your own memory. Do not copy a sample letter, and do not guess dates.
- Be ready to be asked more. The regulation says people who give affidavits may be required to testify before an immigration officer.
- A statement under penalty of perjury has legal consequences for the person who signs it. If you are not sure of a detail, leave it out or say that you are not sure.
Do you need a notary?
The Policy Manual section on affidavits does not say that a bona fide marriage letter must be notarized. In two situations the regulation describes third-party affidavits as sworn to or affirmed. Federal law allows a signed declaration made under penalty of perjury, with the wording in 28 U.S.C. 1746, to replace a sworn written statement in most federal matters. For a particular filing, follow the form instructions and the advice of the attorney handling the case.
Where the letter fits in the case
A support letter helps most when the couple’s own documents already tell the story. The steps of the case depend on whether the sponsor is a citizen or a green card holder. See Green card for the spouse of a U.S. citizen and Green card for the spouse of a green card holder.
Who handles this

Nora Busra Turan
Partner · Attorney

Beyza Candelen
Attorney
Bona fide marriage: questions people ask
bona fide marriage meaning immigration
A bona fide marriage is one entered into in good faith, not to evade immigration laws, by spouses who intended to build a life together when they married (USCIS Policy Manual, Volume 6, Part B, Chapter 6). USCIS looks at evidence of the real relationship. Merit Law LLP reviews what evidence fits your case.
marriage support letter for friend green card
Say who you are, how you know the couple and what you saw yourself. Give your full name, address, and date and place of birth, and end with a signed statement under penalty of perjury (28 U.S.C. 1746). Stick to what you personally know. An attorney reviews the letter before it is filed.
does bona fide marriage letter need to be notarized
The USCIS Policy Manual does not require a notary for these letters. Under 28 U.S.C. 1746, a signed declaration made under penalty of perjury can replace a sworn written statement in most federal matters. Follow the form instructions for your filing. Merit Law LLP confirms the format before submission.
who can write an affidavit for marriage green card
The rules do not name a type of writer. The writer must have personal knowledge of the relationship, give a full name, address, and date and place of birth, and explain how he or she knows about the marriage. USCIS may require the writer to testify (8 CFR 204.2(a)(1)). An attorney reviews each letter.
what happens if uscis thinks marriage is fake
USCIS can send a request for evidence, issue a notice of intent to deny, or call the spouses to an interview. The couple can answer with more evidence. A finding that a marriage was entered into to evade immigration laws can bar future petitions (8 U.S.C. 1154(c)). An attorney reviews the file.
Sources and review date
Fees and rules reviewed 26 Oct 2026. Sources below.
- USCIS Policy Manual, Volume 6, Part B, Chapter 6, Spousal Relationships
- 8 CFR 204.2, Petitions for relatives, widows and widowers, and abused spouses and children (Cornell Legal Information Institute)
- 8 U.S.C. 1154, Procedure for granting immigrant status (Cornell Legal Information Institute)
- 28 U.S.C. 1746, Unsworn declarations under penalty of perjury (Cornell Legal Information Institute)
- USCIS, Bringing spouses to live in the United States as permanent residents
What changed: moved from the firm’s earlier blog; rewritten from the USCIS Policy Manual and the regulation, with the contents of an affidavit, the notary question and the testimony rule checked on 26 October 2026; removed the contact line and the statement that a denial could lead to deportation.
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