In 2011 alone the USA issued over 7 million non-immigrant visas to visitors all over the world. Most of this visas were issued based on the belief that these visitors would leave the United States of America at the end of their visit. Although you would not see an invitation letter among the list of documents required for the issuance of a B2 Visa, it is highly suggested that you have one with you when attending a visa interview.
An invitation letter to your girlfriend asking her to come visit you is simply a document that goes a long way to show the validity of your intentions in the USA. There are a few people who may assume that it is better to go for the interview without an invitation letter so that the visa officer does not know about your ties to the USA. I think this is counter productive because if you have written in your application that you are going to the USA to visit your girlfriend or boyfriend, then an invitation letter does not harm your application in anyway. If anything it strengthens it. I would suggest however that you do not offer any documents to the visa officer until you are asked. I would also suggest that if you have other reasons why you may want to visit the USA such as a seminar, conference or tourism (if you have enough money to show this) then this may be a better option than visiting your boyfriend (if you are from a developing country). For further information on getting the visa you should get a copy of the Ultimate Visa Application and Interview Kit.
Here is a Sample letter of invitation for your girlfriend
Please take note that there is no specific format for an invitation letter. What you need to be concerned about is that you have the necessary information on the letter.
3444 Mascot Ave, New York,
23 Month, year
114 Amorsolo Street,Legaspi Village,
Makati City,Metro Manila, Philippines
INVITATION TO VISIT NEW YORK
Please use this as a formal invitation to visit me in New York this coming Summer. As discussed on the phone, you may come between May 25 and June 25. This will give you enough time to visit a few places and for us to get to enjoy each other again. I really enjoyed my visit to Manila last summer. I am looking forward to your visit. I have made arrangements for us to visit the blabla Museum and the [another tourist attraction.]
During your visit, you would be staying at my apartment at 3444 Mascot Ave, New York, . I will be responsible for your feeding and traveling around the USA. You can take this letter for your visa interview as part of the supporting documents for your visa application.
I love you
Insert your signature here – Don’t forget to do this!!!
Name – Dave Topal
Address – 3444 Mascot Ave, New York,
Occupation – Marketing Representative, Widget Company
Status in USA – Citizen
Passport N0 – XXXXXXXXX
Phone No. 12121212112
Name – Susan Molly
Address -114 Amorsolo Street,Legaspi Village,Makati City,Metro Manila, Philippines.
Occupation – School Teacher – Go TO School, Secondary School.
Date of Birth – 23 march 1980
Passport No – XXXXXXXX
Telephone No – 12121221212
All you have to do after signing is to send scanned copies of the letter and the Bio-data page (the one with your photo and information) to your girlfriend in Manila. You are free to send any other document that you feel comfortable to send such as proof of your apartment or tax return.