Communication is a very crucial and significant element in an organization, and it is necessary for creating collaboration within the work environment that has effects on organizational performance and decision making. This study on effects of effective communications on organizational performance using the systems theory is thus essential. The objectives of this study were to firstly identify the factors affecting effective communication based on the systems theory and secondly to devise a communication model that addresses these factors to improve organisational performance. A quantitative approach was used to describe and analyse data collected for the study from 88 respondents. A questionnaire was used to identify factors affecting effective communication based on systems theory. Descriptive analysis and Pearson’s correlation were used to analyse the results. The results for H1 showed a Pearson correlation coefficient of 0.642 which is statistically insignificant if the (sig. 2-tailed) there was no statistically significant relationship between management and channel of communication used. However, the results from H2 indicated that there was a relationship between channel of communication used and effective communication with a Pearson correlation coefficient of 0.041 at (sig. 2-tailed) 3 showed that effective communication has a positive effect on organizational performance at (sig. 2-tailed)