It can be done via following steps:

Go to Profile > Settings > Invoices.

Click on Other Settings Option. You will get the below screen.

You can use the “Terms and Conditions” box to print any static data to be printed on each invoice. Kindly enter your Bank Account Details such as Bank Name, Account Number, IFSC code, Branch name, and Account type. Click on save.

Now go to the Invoice, it will reflect the bank account details in Terms & Conditions box.