If my balance is high then my available balance can i make a prchase?

Lets say my Available Balance is $100 and i made a check deposit of $600 and it wont be put up online until the next business day and i want to make a purchse of $300 right now. Will i get charged an overdraft fee?|||Probably not. If you purchase something today, it usually takes a couple days for the transaction to get to your bank. Plus, the bank does not record transactions at night, so the earliest the bank could receive the charge would be the next day, so you are covered. Good luck!