What are the costs associated with sponsoring a US K1 Fiancee Visa? Our best recommendation for K1 Fiancee Visa processing (USA only) is www.k1-marriage-visas.com (tel. 770-458-7361). Their fee for the complete package is $1,300, $100 extra for a child. Also, they provide a Do-it-Yourself Kit for $49.95, which you should absolutely take with you to the lady's country. The kit is a great help in preparing for the visa application. If you subsequently use their attorney services, the cost of the kit will be deducted from the $1,300. Other costs include the application filing fee of $455, Request to Expedite (not required) $120, lady's police report $50, lady's medical exam of about $100 and of course the cost of a round-trip ticket to the US.