How do I invoice a sister company but not record it as revenue but instead have the Invoice amount be equity not revenue

I'll guide you here, al-alper!

If you really want to use an invoice, you can create an item and assign your equity account to it. That way, the amount will reflect in it.

If you have other questions, you can always go back to this thread. You can also check more references on the main support page. Have a good one!

That will definitely account for the equity contribution - but will still leave a balance on the Customer account. Assume that is then Written Off via a Credit Memo allocated to write off or Bad debt (e.g 63000 Uncollected Debt)? But that will artifically inflate expenses, no?