‘(38) Adequate social security coverage for intra-corporate transferees, including, where relevant, benefits for their family members, is important for ensuring decent working and living conditions while staying in the Union. Therefore, equal treatment should be granted under national law in respect of those branches of social security listed in Article 3 of Regulation (EC) No 883/2004 of the European Parliament and of the Council (10). This Directive does not harmonise the social security legislation of Member States. It is limited to applying the principle of equal treatment in the field of social security to the persons falling within its scope. The right to equal treatment in the field of social security applies to third-country nationals who fulfil the objective and non-discriminatory conditions laid down by the law of the Member State where the work is carried out with regard to affiliation and entitlement to social security benefits.
In many Member States, the right to family benefits is conditional upon a certain connection with that Member State since the benefits are designed to support a positive demographic development in order to secure the future work force in that Member State. Therefore, this Directive should not affect the right of a Member State to restrict, under certain conditions, equal treatment in respect of family benefits, since the intra-corporate transferee and the accompanying family members are staying temporarily in that Member State. Social security rights should be granted without prejudice to provisions of national law and/or bilateral agreements providing for the application of the social security legislation of the country of origin. However, bilateral agreements or national law on social security rights of intra-corporate transferees which are adopted after the entry into force of this Directive should not provide for less favourable treatment than the treatment granted to nationals of the Member State where the work is carried out. As a result of national law or such agreements, it may be, for example, in the interests of the intra-corporate transferees to remain affiliated to the social security system of their country of origin if an interruption of their affiliation would adversely affect their rights or if their affiliation would result in their bearing the costs of double coverage. Member States should always retain the possibility to grant more favourable social security rights to intra-corporate transferees. Nothing in this Directive should affect the right of survivors who derive rights from the intra-corporate transferee to receive survivor's pensions when residing in a third country.
(39) In the event of mobility between Member States, Regulation (EU) No 1231/2010 of the European Parliament and of the Council (11) should apply accordingly. This Directive should not confer more rights than those already provided for in existing Union law in the field of social security for third-country nationals who have cross-border interests between Member States.‘
Article 18 Right to equal treatment
‘2. Intra-corporate transferees shall enjoy equal treatment with nationals of the Member State where the work is carried out as regards:
(c) provisions in national law regarding the branches of social security defined in Article 3 of Regulation (EC) No 883/2004, unless the law of the country of origin applies by virtue of bilateral agreements or the national law of the Member State where the work is carried out, ensuring that the intra-corporate transferee is covered by the social security legislation in one of those countries. In the event of intra-EU mobility, and without prejudice to bilateral agreements ensuring that the intra-corporate transferee is covered by the national law of the country of origin, Regulation (EU) No 1231/2010 shall apply accordingly; [...]‘