Customs formalities that apply when entering into the Republic of Serbia can be found here.
Diplomatic and consular missions issue certificates enabling the import into the country of household items free of customs duties. The nationals of the Republic of Serbia who have spent at least 2 years without interruption working abroad are entitled to a customs certificate.
They are exempted from customs duties on household articles which they have imported into the country within one year from the date of their return from work abroad, up to a total value of 5,000 EUR. Sojourn abroad does not represent a basis for gaining the right to a duty-free import. The certificate for duty-free import is applicable only to the import of household items into the Republic of Serbia.