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This study aimed to cross-culturally adapt and investigate the psychometric properties of the Parental Stress Scale (PSS) for Brazilian- Portuguese. There were 304 participating parents, distributed in the same proportion by gender (mothers and fathers). Initially, we carried out stages of translation and investigation of the scale's content validity; then we conducted an empirical analysis with the translated PSS. The results of the exploratory factor analysis indicated a final structure for the PSS composed of 16 items divided into two subscales, a unifactorial model with internal consistency adequate for the total score. There was also evidence of concurrent validity of the PSS with the PSS-14 and the IPP. Finally, in this first psychometric study in Brazil, the PSS presented satisfactory psychometric properties, proving to be a valid and reliable instrument to measure parental stress in parents in general. [ABSTRACT FROM AUTHOR]