They scan the code, and you can then hand over your cash to be deposited into your PayPal account. While it may feel weird to make a cash. PayPal can be used all over the world to make and receive payments through the Internet, eliminating the If you don't have a bank account, you may be able to use PayPal My Cash. You can use this to turn your cash into PayPal funds. Add money to your PayPal account. powered by. Green Dot @ the Register. Log in to your PayPal account. Hand the cashier your cash, the barcode you create.