The study evaluated the effect of firm size on the revenue reserve of agricultural firms in Nigeria. The objectives of the study were to ascertain the effect of total assets, turnover, and the number of employees on revenue reserve of agricultural firms in Nigeria. The study adopted an ex-post-facto research design, covering the period between 2012 and 2021. Secondary data were extracted from the annual reports and accounts of the sampled agricultural firms in Nigeria. A multiple regression technique was used for the data analysis. From the analysis of the study, it was revealed that total asset has a statistically nonsignificant negative effect on retained earnings of agricultural firms in Nigeria with a regression coefficient of -1.153966 and a P-value of 0.7517. However, turnover has a statistically significant positive effect on retained earnings of agricultural firms in Nigeria with a regression coefficient of 4.772568 and a P-value of 0.0002. In line with the findings on turnover, number of employees has a statistically significant positive effect on retained earnings of agricultural firms in Nigeria with a regression coefficient of 8.693119 and a P-value of 0.0440. This implies that firm size has a significant effect on retained earnings of agricultural firms in Nigeria. It was recommended therefore that agricultural firms in Nigeria should manage the trade-off between acquiring assets with the profit for the year and retaining for investment in other operations of the business such as wages and salaries and other overheads. They should engage in promotions and other programmes that will encourage customers to buy their products. This will increase their turnover and subsequently increase their Retained Earnings. Agricultural businesses require manpower, hence they should ensure that they have enough staff to enable them to carry out their business activities effectively which will guarantee profitability and maximum retained earnings.
Keywords: Agricultural Firms, Number of Employees, Revenue Reserve, Total Assets, Turnover, firm size, retained earnings