If you are visiting someone in Ireland, you should send a letter of invitation written by them. The letter should have information about how they know you, the dates you are visiting them and why they are inviting you to Ireland. They should include a colour copy of their passport or national identity card.

Bringing a friend to Ireland in 2026 depends entirely on their citizenship and the purpose of the visit. If your friend is a citizen of the U.S., Canada, the UK, or the EU, they do not need a visa for a stay of up to 90 days for tourism. However, if they are from a "visa-required" country (such as India, China, or many African nations), they must apply for a "Short Stay 'C' Visit (Tourist) Visa." To support their application, you can provide a Letter of Invitation, which should outline where they will stay (e.g., your home or a hotel), the dates of the visit, and a clear statement that they will not become a burden on the Irish state. In 2026, the Irish Naturalisation and Immigration Service (INIS) is very strict about "proof of return," so your friend should also provide evidence of their ties to their home country, such as an employment letter or property documents. Even for visa-free travelers, border officers at Dublin Airport may ask to see proof of sufficient funds and a return flight ticket.