Globally, small and medium sized enterprises (SMEs) have been found to significantly contribute to the gross domestic product (GDP) in developing nations as well as to employment. In Kenya, the SMEs have the potential of raising many citizens to the mainstream economy. Although the SMEs contribute toward economic development as well as to employment in Kenya, their financial performance is still wanting, which is evidenced by the high collapse rate of SMEs. This research project assessed the influence of accounting outsourcing (AO) on financial performance of SMEs. The study used a descriptive design, and the number of SMEs that formed the population of study was 8605 in Thika subcounty. The sample size was therefore 368 SMEs, which were sampled using stratified and simple random sampling. The study adopted a questionnaire to collect data, and the Cronbach alpha coefficient was employed for testing of reliability. Descriptive and inferential statistics were used in analyzing the collected data with the assistance of statistical packages of social science (SPSS) version 23. The relationship between influences of AO and its effect on financial performance of SMEs were established through a simple regression model. The results of this study showed a significant positive association between the explanatory variables and the financial performance of SMEs. The study concludes that influences of AO have significant influence on SMEs financial performance. The study recommended that managers and owners of SMEs should seek service from qualified accountants as this may increase the quality of financial records and may improve their SMEs financial performance.
