The 20% Rule and When to Break It
Putting 20% down avoids PMI and gives you instant equity, but it is not always the best strategy. If rising home prices outpace your savings, waiting for 20% may cost you more than PMI ever would. Use the PMI break-even analysis in the Scenario Analysis tab to run the numbers for your situation.
First-Time Buyer Loan Programs
FHA loans allow 3.5% down with credit scores as low as 580. VA loans offer 0% down for eligible veterans with no monthly PMI. USDA loans provide 0% down in eligible rural areas. Many states also offer down payment assistance grants — research your local HFA (Housing Finance Agency).
Opportunity Cost of a Large Down Payment
Cash used for a down payment cannot be invested elsewhere. If your mortgage rate is 6.75% and the stock market historically returns 10%, the marginal dollar invested in extra down payment earns a guaranteed 6.75% (by reducing interest) vs a potential 10% in equities. The right answer depends on your risk tolerance and time horizon.
Down Payment Assistance Programs
Over 2,000 down payment assistance (DPA) programs exist across the U.S. These include state grants, forgivable second loans, and matched savings accounts. Fannie Mae’s HomeReady and Freddie Mac’s Home Possible allow 3% down with reduced PMI. Many programs target first-time buyers earning 80–120% of area median income. Search your state’s Housing Finance Agency (HFA) and the HUD counselor directory — grants of 3–5% of the purchase price can dramatically shorten your savings timeline.
How Home Appreciation Affects Your Decision
Home prices have historically appreciated ~3–4% per year. On a $400,000 home that adds $12,000–$16,000 to the price annually. If you are saving $2,000/month toward a 20% target, appreciation can add nearly as much to your goal each year as you save. Buying sooner at 5% or 10% and paying PMI for a few years often builds more total wealth in an appreciating market than waiting. Run the PMI Break-Even analysis in the Scenario Analysis tab to model your specific numbers.