The short answer is that you can get a conventional mortgage with as little as 3% down, an FHA loan with 3.5% down, and a VA or USDA loan with no money down at all. However, with a conventional or FHA loan, you’ll have to pay private mortgage insurance, aka PMI, if your down payment is less than 20% of the home’s sale price. (Those payments won’t be a permanent fixture in your monthly payments, however. Once the loan-to-value ratio on your mortgage falls to 80%, you can ask your lender to drop them. And even without your request, lenders are required to cancel PMI when the loan-to-value ratio drops to 78%.)