Is an invitation letter required for a US B1/B2 visa?

No. The State Department says a visitor-visa application does not require an invitation letter or Affidavit of Support, and they are not a deciding factor in issuance.

Does bringing an invitation letter improve my chances?

It is not a factor in the decision. Even if you choose to bring an invitation letter or Affidavit of Support, the State Department says it is not one of the factors used to decide the visa; applicants qualify on their ties abroad.

If not an invitation letter, what does the visa depend on?

You qualify on your ties to your home country (job, family, residence) showing you will leave after a temporary stay; if the officer asks, prepare evidence about the real trip purpose, intent to depart, and ability to pay costs.

// B1/B2 GUIDE · INVITATION LETTER

B1/B2 invitation letters: official requirements first, real facts second

Direct answer: The U.S. Department of State says an invitation letter or Affidavit of Support is not required for a visitor-visa application and is not a deciding factor. An applicant may be asked for additional evidence about a real trip purpose, intent to depart, or ability to pay costs; current post-specific requirements control.

Source: Visitor Visa

An invitation letter is not a required document

The State Department visitor-visa page says that an invitation letter or Affidavit of Support is not needed to apply for a visitor visa and is not a deciding factor in issuance. A popular online template is not a substitute for the official process.

Check the core passport, DS-160 confirmation, applicable fee, and current instructions from the application post before gathering generic letters.

Source: Visitor Visa · DS-160 overview

Additional evidence is only about real circumstances

The State Department says a consular officer may request additional documents to establish trip purpose, intent to depart the United States, or ability to pay travel costs. What is requested depends on the applicant and post; no universal document set decides every case.

If you bring material, make sure it matches plans and facts you can truthfully explain. Do not use a template to invent details or create a mismatch with DS-160.

Source: Visitor Visa

Do one fact-consistency practice

Compare the real trip purpose, stay plan, funding source, and ties outside the United States with DS-160. Practice helps make an explanation clear and consistent; a letter cannot replace the applicant's own facts.

VisaIsle offers education and mock practice only. It is not legal advice, does not assess eligibility, and makes no outcome guarantee.

Check DS-160 against the true trip plan you intend to explain.
Read the current document and appointment instructions for the application post.
Keep only material you can truthfully explain.

Source: Visitor Visa · Visa Denials

Official sources

Updated 2026-07-20