Required documents for transit visa 

Transit visa applicant shall gather following materials when applying at international border points 

▪ Official invitation letter by inviting individual and legal entity 
▪ Copy of passport or relevant valid substitute (must be valid for a minimum of 180 days before your intended travel to Mongolia);
proof of sufficient funding if needed (two way flight reservation)
▪ Receipt of payment
▪ Completed application form (apply online)