Hello Althevet,
You can set this up in the Gear Icon on the top right hand corner of your Quickbooks. Go into Custom Form Styles and then you can edit the style you use.
Go to the Content section of your Custom style and select the middle box on the invoice. You will then be able to select the top tick box to "Show on invoice" under account summary.
I believe this is what you are looking for. Let us know if you need any further support.
