Deposit is important in the banking industry. The objective of bank is increase the amount of despot to utilize it in producing credits and meet their financial obligations. The purpose of this research is to determine the factors affecting bank deposits in Tunisia. we used a panel static for a sample of 11 banks in Tunisia for the period (2005…2022). We found that (ROA; NIM; Size, capital; credit; GDP, inflation) have a positive effect on deposit but (ROE; operating costs; asset liquids) have a negative effect on deposits.