10/30/2026
The idea that you need 20% down to buy a home is one of the most persistent myths in real estate. Here is what the actual math looks like.
On a $400,000 home: 20% down = $80,000 out of pocket, no PMI, lower monthly payment. 3% down = $12,000 out of pocket, PMI added monthly, slightly higher rate possible.
The 20% path has clear advantages: no mortgage insurance, better rate pricing, and a lower payment from day one. But it comes at the cost of time -- often years of saving.
The 3% path gets you into a home now. You start building equity immediately, which means market appreciation and principal paydown work in your favor right away. PMI typically costs between 0.5% and 1.5% of the loan amount annually and is cancellable once you reach 20% equity.
The real question is not just about the down payment -- it is about opportunity cost. What happens to home values while you are saving that additional $68,000? In many markets, appreciation during the waiting period can outpace the total cost of PMI.
The right answer depends on your savings, your market, and your timeline.
Visit Redwood-Mortgage.com and let's run the actual numbers for your situation.
Stuart Kiehne | NMLS #92008 | Redwood Mortgage Services
Licensed in MD, VA, DE, DC, NC, FL