Down payments in plain English
A down payment is money a buyer contributes toward a purchase instead of borrowing. On a $400,000 home with 10% down, the down payment is $40,000 and the starting loan is roughly $360,000 before financed charges or adjustments.
The down payment is not the same as closing costs, earnest money, or a monthly payment. It reduces the amount financed and creates initial equity, but the buyer also needs cash for lender fees, prepaid taxes and insurance, moving, repairs, and reserves.
There is no universal 20% mortgage requirement. Loan type, lender, occupancy, property, credit, and assistance programs determine the permitted minimum and cost.
How to calculate a down payment
Use:
Down payment = purchase price × down-payment percentage
And, in a simplified purchase:
Loan amount = purchase price − down payment
A 5% down payment on a $300,000 home is $15,000. That does not mean cash to close is $15,000. Closing costs and prepaid items increase cash required, while earnest money already deposited, seller credits, lender credits, or assistance can reduce the amount due at closing.
The Closing Disclosure provides the final cash-to-close calculation. Compare it with the earlier Loan Estimate and ask about unexplained changes before signing.
Down payment and loan-to-value ratio
Loan-to-value ratio (LTV) compares the loan with the property's value used by the lender.
LTV = loan amount ÷ property value × 100
With 20% down, purchase LTV is often approximately 80%, assuming price and appraised value align. If the appraisal is lower than the contract price, the lender may calculate its maximum loan using the lower value, requiring more cash or a renegotiated price.
A lower LTV generally gives the lender more collateral cushion and can improve pricing or mortgage-insurance options. It does not replace income, credit, asset, and property underwriting.
Why 20% matters
For many conventional mortgages, putting less than 20% down can require private mortgage insurance (PMI). PMI protects the lender, not the borrower, if payments stop.
Twenty percent can reduce the loan, payment, lifetime interest, and PMI cost. It can also improve offer competitiveness or pricing. But draining every liquid dollar to reach 20% can leave a homeowner unable to handle repairs, taxes, insurance increases, or income loss.
CFPB guidance recommends preserving an emergency cushion and accounting for other savings goals. Compare realistic scenarios such as 10%, 15%, and 20% down using actual Loan Estimates.
Low- and no-down-payment programs
Some conventional programs allow low down payments for qualified borrowers. FHA-insured loans can permit low down payments under current program rules; HUD states that qualifying FHA purchases can require as little as 3.5%. VA and USDA programs can provide no-down-payment options for eligible borrowers and properties.
Low down payment does not mean no upfront cost or no mortgage-related charge. Programs can require upfront or annual insurance premiums, funding fees, guarantee fees, reserves, or eligibility conditions.
Never rely on a headline percentage. Obtain a program-specific Loan Estimate showing rate, APR, mortgage insurance, total payment, cash to close, and costs over time.
Conventional PMI versus FHA mortgage insurance
PMI is private insurance commonly associated with a conventional loan above 80% LTV. Federal law provides cancellation and automatic termination rights for many borrower-paid PMI arrangements when specified conditions are met.
FHA mortgage insurance follows FHA rules and can include upfront and annual premiums. Duration and cancellation are not governed by conventional PMI's standard 80% and 78% framework.
A smaller down payment plus conventional PMI may cost less or more than an FHA loan depending on credit, rates, premiums, loan size, and how long the borrower expects to keep the loan. Compare complete offers rather than assuming one program is always cheaper.
Sources of down-payment funds
Lenders verify that funds come from acceptable sources. Depending on program rules, eligible funds can include checking or savings, investments, documented sale proceeds, retirement-account withdrawals or loans, gifts, grants, employer assistance, and approved down-payment assistance.
Documentation may include bank statements, gift letters, transfer records, sale documents, and evidence that money is not an undisclosed loan. Large unexplained deposits can delay underwriting.
Borrowed funds increase obligations and may affect DTI. A “gift” that must be repaid is not a gift. Disclose the true source rather than moving money between accounts to hide it.
Gift funds
Programs specify who may give funds, what documentation is required, and whether the donor can have an interest in the transaction. A gift letter commonly states the amount, relationship, source, and that repayment is not expected.
The lender may verify the donor's ability and the transfer into the buyer's account or closing agent. Keep a clear paper trail and avoid cash deposits that cannot be traced.
Gift tax rules concern the donor and can require reporting without necessarily producing immediate tax. For a large gift, consult a qualified tax adviser rather than assuming the mortgage documentation answers the tax question.
Down-payment assistance
State, local, nonprofit, employer, and housing-finance-agency programs can offer grants, forgivable loans, deferred-payment second mortgages, or matched savings.
“Assistance” is not always free money. Ask:
- Is it a grant or a recorded lien?
- Does it accrue interest?
- When is repayment required?
- Is part forgiven over time?
- What happens after sale, refinance, rental, or early move?
- Are income, location, occupancy, or education requirements involved?
- Does the first-mortgage rate increase?
Compare the assisted package with an unassisted loan. A higher rate on the full first mortgage can outweigh a modest upfront benefit over a long holding period.
Earnest money is not an extra down payment
Earnest money is a deposit submitted under the purchase contract to demonstrate commitment. At closing it is normally credited toward the buyer's required funds, subject to the agreement.
Whether earnest money is refundable depends on contingencies, deadlines, performance, and state law. Financing, appraisal, inspection, and title contingencies require careful drafting and timely action.
Wire fraud is a major closing risk. Verify instructions through a known telephone number and never trust a last-minute email changing the destination account.
Down payment on a vehicle
An auto down payment reduces amount financed and can lower payment, interest, and the chance of negative equity. Cash, trade-in equity, or rebates may contribute.
If a trade-in is worth less than its loan payoff, the negative equity can be rolled into the new loan. A transaction advertised as “$3,000 down” can still begin with high leverage if old debt is added.
Review sale price, trade allowance, trade payoff, fees, add-ons, APR, amount financed, and total of payments separately. Negotiate the vehicle price and financing rather than focusing only on the monthly payment.
Choosing how much to put down
Evaluate competing uses of cash:
- minimum required for the desired loan;
- rate or fee improvements at specific LTV thresholds;
- mortgage-insurance cost and cancellation path;
- remaining emergency reserve;
- closing, moving, and immediate repair costs;
- higher-interest debt; and
- expected holding period.
Putting more down earns a return roughly related to avoided borrowing cost, but home equity is illiquid and property value can fall. A smaller down payment preserves liquidity but raises leverage and often monthly cost.
Ask lenders for same-day, same-product Loan Estimates at several down-payment levels. Rates change, so comparisons made on different days can mislead.
Common down-payment mistakes
Avoid treating preapproval as final approval, spending reserves before closing, opening new credit, moving funds without documentation, and forgetting closing costs.
Do not assume appreciation will quickly eliminate PMI; statutory cancellation can use original value and scheduled or actual principal, while investor rules for current value differ. Do not count seller concessions as a down payment unless program rules explicitly permit their use for a particular cost.
The strongest down payment is not necessarily the largest. It is the amount that produces a sustainable total payment and leaves enough verified liquidity to own the asset safely after closing.