Where the 20% number came from
Twenty percent is the threshold at which a conventional loan no longer requires private mortgage insurance. It is not a minimum requirement to buy a home, and it never has been. Somewhere along the way a lender guideline turned into a piece of folk wisdom that keeps qualified buyers renting for years longer than they need to.
In the Inland Empire, where a typical entry-level home runs in the mid-$500,000s, 20% is well over $100,000. Most first-time buyers do not have that, and they do not need it.
What you can actually put down
Conventional loans: as little as 3% down for qualified first-time buyers. FHA: 3.5% down with more forgiving credit requirements. VA: zero down for eligible veterans and active-duty service members, with no monthly mortgage insurance. USDA: zero down in designated rural areas, which include parts of the outer Inland Empire.
California also offers down payment assistance through CalHFA programs that can pair a first mortgage with a second loan covering part of the down payment and closing costs.
The real math on waiting
Mortgage insurance on a 5%-down conventional loan typically runs a few hundred dollars a month and falls off automatically once you reach 22% equity. Compare that to two more years of rent with no equity, plus whatever the home appreciates in the meantime, plus a possibly higher rate environment.
Sometimes waiting is genuinely the right call — if your credit needs work, your income is unstable, or you have no reserves left after closing. The point is to make that a deliberate decision based on your numbers, not a default based on a myth.
Questions people ask
Does a smaller down payment mean a higher interest rate?+
Sometimes slightly, because loan-to-value is one pricing factor. The difference is usually much smaller than people expect, and it can be offset by other factors like credit score and loan type.
Can my down payment be a gift?+
Yes. Gift funds from a family member are allowed on most loan programs with a signed gift letter and documentation of the transfer.