1. Click on Settings:
2. Click on Financial Settings in the Settings tab:
3. Click on +NEW ACCOUNT:
4. Click on Bank Account or Credit Card Account
5. Fill in the required information and click Add account (For Bank accounts) and Add Card (For Credit Cards)
6. Excellent! You've added your bank account information. This will be selectable when you're going to process payments within the Accounts Payable tab.