Down Payment The down payment is the amount of cash that you have available to use as a down payment for a home. The minimum for this field is 3.5% of the purchase price, while the maximum is as much as you wish to put into your new home. By The Mills Team|2017-12-13T19:35:58+00:00November 13th, 2017|Mortgage Calculator| Share This Post With Others! FacebookXLinkedInPinterestEmail