Why does the Amount Due on an emailed invoice show the down payment? When you email an invoice that has a down payment, the customer's link shows a saved snapshot of the invoice as it was when you sent it. The Amount Due on that link shows the down payment amount, not the full balance.

Amount Due on an emailed invoice link shows the down payment amount until the remaining balance falls below it. After that, the same link shows the smaller remaining balance. The down payment amount is capped at the remaining balance.

For example, an invoice has a $500 down payment and a $1,200 balance. The link shows an Amount Due of $500. After payments bring the balance down to $300, the same link shows an Amount Due of $300.

The Grand Total, Sub Total and Balance on an emailed invoice link come from the snapshot taken when you sent the invoice. If you apply a discount or an adjustment after sending, those three figures keep showing the amounts from when the invoice was sent. Amount Due keeps updating on its own, so it can differ from the other figures on the same link.

To show a customer the current figures, send the invoice again. Sending the invoice again creates a new link, and the new link shows the invoice's current totals and Amount Due.

Only the most recent link you sent can accept a payment. Older links become view-only, so a customer who opens an earlier email can see the invoice but cannot pay from it.