Hi omanager43. In QuickBooks Desktop, there isn't a way to set up terms like this. If you're still in the 'requesting' stage for the deposit, you can consider creating an estimate and specify when the deposit is due using the Customer Message field. Once you receive the deposit, you can then create your invoice. 

If that's something you'd like to explore, here's how the deposit will be handled in QuickBooks Desktop: Manage upfront deposits or retainers.

If you have any further questions, I'd encourage you to get in touch with our tech support team. 

Cheers!