Purpose Carbon management accounting (CMA) is one part of sustainability accounting designed to provide information for the management of carbon dioxide (CO 2 ) releases. Adopting the contingency framework, this paper aims to examine the contextual antecedents that influence CMA adoption in Ghanaian firms. Design/methodology/approach The paper tests seven contextual dimensions, namely, strategy, structure, size, environmental management system (EMS), decentralization, technology and perceived environmental uncertainty, on CMA adoption from a survey of 125 accountants. Findings Consistent with prior literature, organizational strategy, structure, environmental management accounting (EMA), firm size, technology and perceived environmental uncertainty were found to be positively associated with CMA adoption and hence support contingency theory. However, a relationship between decentralization and EMA adoption was not supported by the sample data. Also, the existence of CMA systems was found to be low in the sample firms, although more than half of the respondents have EMS. Research limitations/implications The study is limited to Ghana hence possible generalization of the results is limited. Further exploration of contingency-based research in other emerging economies would provide valuable insights on CMA adoption and practices to contribute to the CMA literature. Practical implications The findings suggest that although CMA adoption and practices is low in the sampled firms, both contextual and environmental factors play a vital role in the adoption of CMA in developing economies, as it pertains to the generic management accounting systems. Policies governing CMA practice should incorporate organizational contextual factors. Originality/value The paper presents preliminary empirical evidence on the state of adoption and practice of CMA from an emerging economy perspective, an area which lacks empirical investigation both in the EMA and the carbon accounting domain. It draws considerable novelty on the basis that despite the growing interest in climate change-based research empirical works on CO 2 emissions conducted exclusively from management accounting perspective, and in developing economies in particular, have been scant. The paper extends the contingency theory framework from conventional practices to the EMA field.