Veteran Down Payment Assistance Federal Grants For Down Payment Assistance How Much For Down Payment On First House Average Down Payment On A House For First Time Buyer How Much Cash Do Massachusetts First-time Homebuyers Need? – How Much Cash Do Massachusetts First-time Homebuyers Need? Jan 12, 2017 8:55:00 AM One of the most difficult parts of buying a home for Massachusetts first-time homebuyers is saving for the down payment.How much you need for a down payment on a home in. – · How much you need to save for a down payment depends on the price of the house. The standard down payment is 20% of the purchase price, but many first-time buyers put down less money up front and.