Should You Put 20% Down on a House? Why a Bigger Down Payment Isn't Always Better

Should You Put 20% Down on a House? Why a Bigger Down Payment Isn't Always Better

For decades, one of the most common pieces of homebuying advice has been remarkably simple: save until you have a 20% down payment. Putting 20% down can reduce the amount you borrow, lower the monthly principal-and-interest payment and, on many conventional loans, avoid private mortgage insurance.

Those are real advantages. But they don't mean 20% down is automatically the best financial decision for every buyer.

The better question is what happens to the rest of your financial life after you make that down payment.

Why Is 20% Down Considered the Standard?

Twenty percent became a psychological benchmark partly because conventional borrowers who put less than 20% down will often have mortgage insurance. Buyers understandably see mortgage insurance as another expense and therefore assume it should always be avoided.

But mortgage insurance is only one part of the equation. If avoiding it requires moving another $50,000, $100,000 or even $200,000 from liquid savings into home equity, we need to compare the cost of the mortgage insurance against the value of retaining that capital.

The answer isn't automatically obvious.

A $1 Million Home Example

Suppose you're buying a $1 million home. A 20% down payment requires $200,000 before accounting for closing costs and reserves.

Now imagine you have a financing option that allows a substantially smaller down payment. Your loan balance and monthly payment will generally be higher, and depending on the program, mortgage insurance or different pricing may apply.

But you could potentially retain a significant amount of cash.

That's where the analysis gets interesting.

What could that money accomplish outside the house? It might provide emergency reserves, fund renovations, eliminate higher-interest debt, remain invested, support a business or simply give a family greater financial flexibility.

Home equity is valuable.

Liquidity is valuable too.

Home Equity Isn't the Same as Cash

This distinction becomes particularly important after closing.

If you put an additional $100,000 into your down payment, you haven't necessarily lost $100,000 of net worth. You've largely moved it from one place on your balance sheet to another.

But you've converted a highly liquid asset—cash—into a comparatively illiquid asset—home equity.

If you suddenly need $50,000, you can't swipe your kitchen at the ATM.

Accessing home equity later may require a HELOC, home equity loan, cash-out refinance or sale of the property. Qualification, rates, property values and lending guidelines at that future point aren't guaranteed.

That's why I don't want buyers casually emptying investment and savings accounts simply to hit an arbitrary down-payment percentage.

When 20% Down Can Make Excellent Sense

There are plenty of situations where putting 20% down is the right move. It can reduce the mortgage balance and monthly payment, potentially eliminate conventional mortgage insurance, improve qualification ratios and sometimes improve loan pricing or strengthen the overall transaction.

A borrower who still has substantial liquidity after putting 20% down may see little reason to finance more.

That's completely reasonable.

The point isn't “never put 20% down.”

The point is “don't automatically put 20% down.”

What About 5% or 10% Down?

Many buyers are surprised to learn that conventional financing can permit down payments substantially below 20% for eligible borrowers and transactions. FHA financing can also allow lower down payments for qualified borrowers, and eligible VA borrowers may have zero-down financing available.

The exact minimum depends on the borrower, occupancy, property, loan amount and program.

This is why buyers shouldn't decide their down payment before getting financing scenarios.

Start with your financial goals.

Then build the mortgage around them.

The Opportunity Cost of Your Down Payment

Suppose you're deciding whether to put an additional $100,000 into the property.

The question isn't merely how much that extra down payment reduces your mortgage.

There's an opportunity cost associated with using the money.

If that $100,000 would otherwise sit in checking earning nothing, putting it toward the house might look attractive. If it would otherwise remain invested for ten or twenty years, the analysis becomes different. If it prevents you from paying off substantially higher-interest debt, that's another calculation. If using it leaves you with almost no emergency reserves, that matters too.

Nobody can guarantee investment returns, future mortgage rates or property appreciation.

But those uncertainties don't mean we ignore alternatives.

They mean we compare them.

Don't Become House Rich and Cash Poor

This is the situation I particularly want buyers to avoid.

You close on a beautiful house with a large amount of equity on day one.

Then the roof leaks.

The HVAC goes.

You discover something needs repair.

Or life simply happens.

Suddenly you own a valuable asset but have very little accessible cash.

For families, business owners and people with variable income, maintaining sufficient reserves can be incredibly important.

Owning more equity doesn't necessarily make you financially safer if obtaining that equity required draining nearly everything else.

Could You Access the Equity Later?

Potentially. Homeowners may later qualify for HELOCs or other home-equity financing.

But I would never build a financial plan around assuming that future financing will definitely be available.

Property values can change. Lending guidelines can change. Your employment or income can change. Interest rates can change.

If retaining liquidity today is important, account for that when structuring the original mortgage rather than assuming you can easily retrieve the money later.

What Should Buyers Actually Compare?

Before choosing a down payment, compare multiple scenarios.

Look at the down payment, loan amount, mortgage insurance if applicable, interest rate and APR, monthly housing payment, total cash required at closing and—critically—how much liquidity remains afterward.

Then consider what the retained money would actually be used for.

Now we're making a financial decision.

The Bottom Line

Twenty percent down is not bad advice.

Blindly putting 20% down is.

For one borrower, putting 20% or more down may clearly produce the best result.

For another, retaining $100,000 of liquidity while accepting a somewhat higher monthly payment may be far more valuable.

There isn't a universal percentage that makes somebody financially responsible.

There is only the structure that best fits their income, assets, risk tolerance, property and long-term plans.

So before transferring a giant pile of money into escrow because you've always heard you're “supposed” to put 20% down, run the alternatives.

Your down payment should be a financial strategy—not a tradition.