@Sorelya , while agreeing with the excellent reply from @MaryK4 , just wanted to make sure you were aware of the following
(a) you said " gift from a foreign country " ----- hope you are talking about a foreign person / trust / estate i.e. what determines the need for the filing of 3520 is the status of the donor --- Non-Resident Alien, a foreign trust or Estate , established under the laws of a foreign country
(b) you have to be a US person when the gift was received i.e. US citizen or Green Card or Resident for Tax purposes
(c) the value of the gift has to be equal or more than US$100,000
(d) generally we are talking about cash / liquid/semi-liquid gift here
(e) because the donor is foreign ( a non-resident alien person / entity ) there is no requirement for the donor to do anything for US purposes.
(f) the donor cannot / must not be a sanctioned person/entity or you will run afoul of the treasury sanction rules ( doing business with the "enemy" / money laundering)
(g) there is no tax implications for the donee ( recipient) but not reporting the gift attracts rather onerous penalty.
(h) also note that both FBAR and / or FATCA ( form 8938 ) may also come into play depending on the nature and the transfer " history" of the gift
Hope this helps
