All Colombian citizens, regardless of the length of their stay, and all foreigners who stay in the country for at least 60 consecutive days, are required to pay a national sales tax (19%) on their accommodation during their stay. Foreign citizens with a tourist visa are exempt from paying this tax. If the person subject to tax and another person exempt from tax share the same room, the rate may be applied to the entire room. Parents traveling into Colombia with a child under 18 may be required to present the child's birth certificate and photo ID or passport for foreign visitors upon check-in. If a relative or legal guardian is traveling into Colombia with the child, that relative or legal guardian may be required to present a notarized consent of travel signed by both parents and a copy of both parents' ID. If only one parent is traveling into Colombia with the child, that parent may be required to present a notarized consent of travel signed by the other parent. Visitors who plan to travel with children should consult with a Colombian consulate office prior to travel for further guidance. The national sales tax (19%) is charged upon check-out to citizens of Colombia regardless of length of stay and to foreigners staying 60 consecutive days or more. Foreigners on a tourist visa are exempt from this tax. Furthermore, the tax may apply per room when the room is shared by a taxable and a nontaxable guest. Charges can vary, for example, based on length of stay or the room guests book.