Down Payments: How Much Do You Really Need?

Where the 20% Rule Comes From

For decades, homebuyers have heard that they need 20% down before purchasing a home. This figure has a practical origin: on a conventional mortgage, a 20% down payment brings the loan-to-value ratio (LTV) to 80%, which eliminates the lender's requirement for private mortgage insurance (PMI). It also signals to lenders that the borrower has meaningful financial skin in the game, reducing default risk.

But 20% was never a legal threshold — it was a standard born from lender risk preferences and a housing market that looked very different from today's. As home prices have risen sharply in many markets, waiting to save 20% has become a significant barrier for many buyers, particularly first-timers. The good news is that a wide range of loan structures exist specifically to serve buyers who aren't there yet.

Common homebuying myths like the strict 20% rule can delay purchases unnecessarily — understanding what's actually required puts the decision back in your hands.

Loan Types and Their Down Payment Requirements

The minimum down payment you need depends heavily on the type of mortgage you're applying for. Here's how the major categories differ:

• Conventional loans: Backed by Fannie Mae or Freddie Mac guidelines, these can accept as little as 3% down for first-time buyers who qualify. Below 20%, PMI applies.
• FHA loans: Insured by the Federal Housing Administration, these require 3.5% down for borrowers with a credit score of 580 or higher. They carry their own mortgage insurance premiums (MIP), which behave differently from conventional PMI.
• VA loans: Available to eligible veterans, active-duty service members, and surviving spouses, VA loans typically require no down payment and no PMI, though a funding fee usually applies.
• USDA loans: For eligible buyers in designated rural and suburban areas, USDA loans also offer zero-down-payment financing with income limits and property location requirements.

Each loan type has its own credit, income, and property requirements. A HUD-approved housing counselor or licensed mortgage professional can help you identify which option fits your situation.

How Down Payment Size Affects Your Costs

The size of your down payment ripples through virtually every cost associated with your mortgage. A smaller down payment means a larger loan balance, which translates to higher monthly principal and interest payments. It also means more total interest paid over the life of the loan.

If you put down less than 20% on a conventional loan, PMI typically adds between 0.5% and 1.5% of the loan amount per year to your costs, divided across monthly payments — though exact rates vary by lender and borrower profile. That can mean hundreds of dollars per month on a mid-sized loan.

On the other hand, making a very large down payment — say, 30% or more — may free you from PMI and reduce your monthly burden, but it also leaves less cash available for closing costs, moving expenses, repairs, and your emergency fund. Depleting your savings to maximize your down payment can create vulnerability if unexpected expenses arise after move-in. See our guide on what buyers actually pay at closing to factor those costs into your planning.

Down Payment Assistance and Other Resources

Many buyers don't realize that down payment assistance programs exist well beyond the federal level. State housing finance agencies, county programs, and certain nonprofit organizations offer grants, deferred loans, and forgivable second mortgages specifically to help buyers cover down payments and closing costs.

Eligibility requirements vary — common criteria include income limits, purchase price caps, property location, and first-time buyer status (typically defined as not having owned a home in the past three years). Some programs are targeted at teachers, healthcare workers, or veterans.

If you're weighing whether to buy at all, the trade-offs between renting and owning go well beyond the down payment — our overview of renting vs. buying explores the financial and lifestyle factors worth considering before you commit.

This article is for general informational and educational purposes only and does not constitute financial, mortgage, or legal advice. Down payment requirements, loan terms, and program eligibility vary by lender, loan type, and location. Consult a licensed mortgage professional or HUD-approved housing counselor for guidance specific to your situation.