What complicates matters is that the task of a foreign administrator is to multiply the combinations of countries that do not have agreements. The absence of an agreement can place a significant financial burden on multinational employers, for example when a company sends a foreign trip to the United States in Brazil. Other drawbacks, if there is no agreement, are dual contributions and ineligible benefits – all factors to be taken into account in the development of an international allocation policy. Under these agreements, a worker seconded by an employer from one country to another country for a period of five years or less is covered only by the sending country. The agreements provide for additional provisions that remove dual coverage in other work situations (for example. B air and sea transport workers). The agreements also help to eliminate situations in which workers suffer a loss of benefit entitlements because they have divided their careers between the two countries. Anyone who wants to write more information about the United States Social Security Totalization Agreements program, including details of some agreements that are in effect: Most U.S. agreements remove dual coverage of autonomy by assigning coverage to the worker`s country of residence. For example, under the US-Swedish agreement, an American citizen living in Sweden and living in Sweden is covered only by the Swedish system and is excluded from US coverage. While these considerations represent a challenge for the employer, it is important to recognize that there are currently a number of multilateral agreements (EU Regulation 883/2004, Iberoamerican Organization Social Security Agreement, etc.) or bilateral totalisation agreements (social security contracts between two countries) to allay concerns about contributions and benefit rights – thus making the employer`s job easier. This article discusses the scope and impact of these agreements in a selection of countries, as well as the potential social security costs associated with seconding a staff member on a temporary international mission.