How to issue visa invitation letters for an international conference.

This guide is general information for conference organizers. It is not legal or immigration advice, and rules differ by country and change over time. Always confirm requirements with the official source for the country your attendees will travel to, and with your own legal adviser if you are unsure.

What an invitation letter is, and is not

An invitation letter confirms that a person is registered for, or has been invited to, your event. Embassies and consulates may ask for one as supporting evidence. It does not grant a visa, entry or any status, and you cannot guarantee an outcome. Say so in the letter.

What to include

• Your organization’s name, address and contact details, on its letterhead.
• The conference name, dates and venue city.
• The attendee’s full name exactly as in the passport, and optionally passport number and nationality.
• The role (attendee, author, speaker) and the registration or paper reference.
• Who is paying for registration, travel and accommodation. Be factual: if you are not covering costs, say so.
• A clear statement that the letter is not a guarantee of a visa.
• The date issued and the name and title of the signing organizer.

Six steps

1. Decide who is eligible. Set a rule before requests arrive, for example registered attendees with a confirmed ticket, or accepted authors.
2. Prepare the letter template. Write one template with your letterhead, conference name, dates, venue and a non-guarantee statement.
3. Collect only what you need. Ask for the legal name as in the passport, passport number and nationality, and the embassy or consulate the attendee will apply to.
4. Check names. Compare the passport name with the registration name and resolve mismatches before issuing.
5. Approve each request. A named organizer reviews and approves or rejects every request.
6. Issue and keep a record. Generate the letter as a PDF, deliver it securely and keep a log of what was issued and downloaded.

Protect the personal data

Passport details are sensitive. Collect them through a secure form, not by email, share them only with the people who approve requests, and delete them when you no longer need them. Tell attendees what you keep and for how long.

Avoid common problems

• Do not issue letters to people who have not registered or been accepted.
• Do not promise or imply that a visa will be granted.
• Mind the lead time: embassy appointments can take weeks, so open requests early and publish the cut-off date.
• Keep a record of every letter, including who approved it.

How Conferences.Center handles it

Where visa letters are enabled for your conference, an attendee requests a letter against a valid, paid ticket and enters passport details. The platform compares the passport name with the registered name and warns on a mismatch. An organizer approves or rejects each request. The letter is produced as a PDF from your own template and letterhead, and downloads are logged. See all features→.

Official sources

Requirements belong to each country. Start with the official pages:

• United States: Department of State, U.S. visas (opens in a new tab)
• United Kingdom: GOV.UK visas and immigration (opens in a new tab)
• European Union: Schengen visa policy (opens in a new tab)
• Canada: Immigration, Refugees and Citizenship Canada (opens in a new tab)
• United Arab Emirates: u.ae visa services (opens in a new tab)

Related guides: conference planning→.