Sorry, I think that you misunderstood my question.
Here is what I am trying to do:
Let's say that I invoice my clients, and they owe me $10,000 for services.
Because of payment terms, they aren't going to actually pay me for 45 days.
I want to run two payrolls during that time, and I don't want to run out of money because the company hasn't been paid yet.
So, I run a payroll, knowing that I billed for one client, 20 hours at $200 per hour, and I'm owed $4,000 for that work. But I defer paying myself half of that money, until I know that the invoice is paid, and I only cut a payroll check for $2,000, knowing that I'll pay myself the other $2,000 in 45 days.
What's the best way to keep track of that in Quickbooks? I've been doing it in an external spreadsheet up to this point.