This study investigates the impact of accounting software on financial reporting accuracy in small businesses in Nigeria. Specifically, it examines the influence of automation of accounting processes, real-time data entry and processing, and user training on financial reporting outcomes, measured by compliance with accounting standards, reduction in errors or misstatements, and timeliness of report generation. Using a descriptive survey design, data were collected from 230 respondents of registered small businesses within Port Harcourt using structured questionnaires. The data were analyzed using descriptive statistics, multiple regression analysis, and structural equation modeling. Findings revealed that all three dimensions of accounting software use significantly and positively influence financial reporting accuracy. Automation was found to enhance compliance with accounting standards, real-time processing significantly reduced reporting errors, and training was strongly associated with timely financial report generation. The combined effect of the independent variables accounted for a substantial proportion of the variance in financial reporting accuracy. The study concludes that accounting software, when properly adopted and supported by user training, can serve as a vital tool for enhancing transparency, accountability, and operational efficiency in small business financial reporting. It recommends greater investment in digital infrastructure, subsidized access to accounting software, and targeted training initiatives for SMEs in Nigeria to maximize the benefits of financial technology adoption.