The primary aim of business enterprises is to make profit but they ought to be accountable for the
effect of their activities on the environment. The study investigated the effect of environmental cost
accounting on the profitability of consumer goods companies in Nigeria. Two research questions
guided the study and two null hypotheses were tested at 0.05 level significance. The study covered
a period of ten years 2013-2022. The study adopted an ex post facto research design. Sixteen
consumer goods companies participated in the study. The findings of the study indicated that
environmental cost had a positive effect on net profit margin and returns on capital employed.