Maina, John KaranjaWaweru, Fredrick Warui2025-10-082025-10-082024Maina, J., & Waweru, F., (2024). The Influence of Budget Planning on Financial Expenditure: Evidence from Tier One Commercial Banks in Nairobi County, Kenya. (2024). International Journal of Current Aspects in Finance, Banking and AccountingDOI 10.35942/441ygs35https://ir-library.ku.ac.ke/handle/123456789/31633ArticleThis study examines the influence of budget planning on financial expenditure among tier one commercial banks in Nairobi County, Kenya. The research was grounded in Agency Theory. Using a descriptive survey design, data was collected from 112 respondents across six tier one banks. The study employed correlation and regression analyses to investigate the relationship between budget planning practices and financial expenditure. Results indicate a strong positive correlation between budget planning and financial expenditure (r=0.684, p<0.01). Regression analysis revealed that budget planning significantly influences financial expenditure (β=0.327, p<0.05),explaining 32.1% of the variance. The findings suggest that effective budget planning practices lead to improved control over financial expenditure in tier one commercial banks. This study contributes to the understanding of budgetary control practices in the Kenyan banking sector and provides practical implications for bank managementenArticle