Abstract Background The incidence of basal cell carcinoma ( BCC ) in younger individuals has increased in recent decades. However, the characteristics of BCC s in this population, especially in Ibero‐Latin American countries, have not been completely defined. Objective To describe the demographic, clinical, and histopathological characteristics of BCC s in patients younger than 40 treated with Mohs Micrographic Surgery ( MMS ). Materials and Methods A multicenter, retrospective study conducted between January 2009 and December 2014, in five Ibero‐American countries, included biopsy‐proven BCC s in patients younger than 40 that were treated with MMS . Demographic, clinical, histopathological, and surgical characteristics were described. Results The study included 301 tumors in 241 patients, of whom 61% were female. The most common Fitzpatrick phototype was III . The most common histological subtypes were nodular (37.5%) and infiltrative (18.9%). Perineural invasion was encountered in 1.7%, and tumor clearance was achieved in 87.4% within two stages of MMS . Conclusions This is the first Ibero‐Latin American transnational study describing the characteristics of BCC s in young patients treated with MMS . Despite darker skin phototypes in this population, BCC s can occur in early ages and may present with aggressive features. Therefore, MMS may be considered an appropriate first‐line treatment option in this population.