Marriages in New Eiffel are not governmentally preformed. Formerly, it was available to opposite-sex couples and was legally recognised in the forms of both civil and religious marriage. Same-sex marriages remained unrecognised, however overseas same-sex couples are de facto governmentally recognised. There was a distinction between religious marriages, conducted by an authorised religious celebrant and civil marriages conducted by a registrar. The legal minimum age to enter into a marriage in New Eiffel was eighteen years, which remains the same as the age of consent, although this required consent of parents and guardians if a participant is under twenty-one.
There were no recorded marriages in New Eiffel at the time marriages stopped being preformed, sometime in December 2019.