Where do you add bank details on invoice? so client pays by BACs

Hello-bigvenuebo, 

Welcome to the Community page, 

When you are logged into your account, click on the main cog wheel> then click on under settings custom form styles> click on the template>content>click on the bottom box section> then where it says add payment details and footer- you add your bank details in there so it shows up on the invoice when you sent it to your customers to then pay you what you need.