How Much Down Payment Do You Need? A Practical Guide for First-Time Buyers

Many buyers start with the same question: how much down payment do I need to buy a house? The biggest myth is that you must put 20% down. In the U.S., that is often false.

The real decision is balancing monthly payment, PMI, and cash reserves after closing. A lower down payment keeps more cash on hand. A higher down payment lowers your loan balance and can remove PMI.

If you want to explore related tools first, visit the Mortgage hub.

Is 20% down actually required?

No. Many conventional loans allow lower down payments, sometimes as low as 3% or 5%. So when buyers ask whether 20 percent down is required, the answer is usually no.

What 20% changes is cost. If you put less than 20% down on a conventional loan, you will often pay private mortgage insurance (PMI). The question is whether the payment and the cash-to-close both fit your situation.

If you are still deciding what home price is realistic, start with How Much House Can You Afford?.

Compare 3%, 5%, 10%, and 20% down

Here is a simple example for a $350,000 home using a 6.75% 30-year fixed mortgage. PMI estimates assume roughly 0.5% annually when applicable. Taxes, insurance, and closing costs are not included.

Down payment	Down payment amount	Loan amount	Est. monthly principal + interest	PMI likely?	Est. monthly PMI	Cash needed up front	Flexibility after closing
3%	$10,500	$339,500	$2,202	Yes	$141	Lowest	Highest liquidity
5%	$17,500	$332,500	$2,157	Yes	$139	Moderate	Strong liquidity
10%	$35,000	$315,000	$2,043	Usually yes	$131	Higher	Moderate liquidity
20%	$70,000	$280,000	$1,816	No	$0	Highest	Lowest liquidity

This shows why there is no universal answer to how much should I put down on a house. A larger down payment lowers the monthly cost. A smaller one gives you more flexibility after closing.

How PMI changes the math

PMI is the main reason buyers compare 5% and 20% so carefully. But a smaller down payment can still be the better move if it protects your emergency fund. If putting 20% down would leave you cash-poor, a 5% or 10% down payment may be safer overall.

Use the Mortgage Payment Calculator to compare monthly payments, and the House Affordability Calculator to see whether the home still fits your income.

Down payment vs affordability

Your down payment affects affordability in two ways:

it changes your loan amount
it may add or remove PMI

But affordability is not just about the lowest payment. It is also about how much cash you will have left after closing. A buyer who puts every dollar into the down payment may end up with a better mortgage but more financial stress.

Compare monthly cost with remaining reserves. If you want to see how your balance and interest change over time, use the Amortization Schedule Calculator. For more budgeting mistakes to avoid, read First-Time Buyer Affordability Mistakes.

WiseCalc calculator

See how your down payment changes your monthly mortgage payment

Compare monthly payment scenarios so you can judge the tradeoff between lower upfront cash and higher ongoing cost.

Open Mortgage Payment Calculator

Worked example: 5% down vs 20% down

Imagine a buyer purchasing a $350,000 home.

With 5% down, the buyer puts down $17,500 and borrows $332,500. Estimated principal and interest is about $2,157 per month, plus around $139 in PMI, for a total near $2,296 before taxes and insurance.

With 20% down, the buyer puts down $70,000 and borrows $280,000. Estimated principal and interest drops to about $1,816, with no PMI.

If the buyer has $95,000 in savings, 20% down may still leave enough room for closing costs and reserves. In that case, the lower monthly payment may be worth it.

If the buyer only has $40,000 to $45,000 available, pushing for 20% down is not realistic. A 5% down payment may allow the purchase while preserving cash for moving, repairs, and emergencies.

That is the core tradeoff: 20% improves the monthly picture; 5% protects liquidity.

When putting less down makes sense

Putting less down may make sense when:

you want to keep an emergency fund intact
you expect moving or repair costs soon after closing
you can qualify comfortably and want more liquidity
buying sooner matters more than waiting to save 20%

For many buyers asking about the minimum down payment for a first-time home buyer, the best answer is the amount that gets them into the home without creating cash stress.

When putting more down makes sense

Putting more down may make sense when:

you want the lowest possible monthly payment
you want to know how to avoid PMI on a conventional loan
you have strong reserves even after closing
you want more equity from day one

If you later want to review separate mortgage topics, see the Mortgage Refinance Guide or the Mortgage Statement Guide. Those are different decisions from choosing a down payment.

FAQ

How much down payment do I need to buy a house?

It depends on the loan program, home price, and your cash reserves. Many buyers can qualify with less than 20% down, but the right amount is the one that keeps both your payment and your post-closing cash position manageable.

Is 20% down required for a mortgage?

No. Many conventional loans allow lower down payments. Putting 20% down mainly helps reduce the loan amount and usually avoids PMI.

What is the minimum down payment for a first-time home buyer?

For some conventional loans, the minimum can be as low as 3%, though actual requirements vary by lender and loan type.

Is it better to put 5% or 20% down on a house?

A 20% down payment usually lowers the monthly payment and avoids PMI. A 5% down payment preserves more cash. The better choice depends on whether your priority is monthly savings or liquidity.

How can I avoid PMI when buying a home?

On a conventional loan, putting 20% down is the most common way to avoid PMI. Some borrowers also remove PMI later after building enough equity.

Final takeaway

The best down payment is the one that protects both your monthly affordability and your cash safety after closing.