Currently Square Invoices does not report partial payments as transactions in Square POS until the invoice is marked paid in full. This creates some headaches on the accounting side as we have now received money but it can not be tracked in a friendly way.
The following tweaks/options to how Invoices handles partial payments would be incredible:
1.) Have a partial-payment show up as a transaction with a printable receipt in Square POS/ Square Register immediately after the payment happens, not after the invoice is paid in full. And in turn show up in the end-of-day transaction report.
2.) Allow this partial-payment transaction to be synced with Quickbooks; currently only paid in full invoices can sync.
3.) If a partial payment is made with cash, have that cash reflected in the Cash Management add-on for Square Register immediately after the payment happens, not after the invoice is paid in full.
Square Community