CASH AFTER CLOSING
Twenty percent down.
What’s left afterward?
A smaller mortgage is helpful. An empty savings account is a different kind of stress. Here is how to weigh both sides.
Twenty percent down has a reassuring sound to it. No private mortgage insurance, a smaller loan, and one less thing to worry about. If you have the money, it can seem like the obvious choice.
But there is a difference between having enough to make the down payment and having enough left to feel okay afterward. A lower payment is useful. So is being able to replace the furnace without putting it on a credit card.
Start with what you want to keep
Before deciding how much to put down, separate your available cash into three jobs: buying the home, getting settled, and handling life after the move. Closing costs belong in the first group. Moving, immediate repairs, and essential purchases belong in the second. Your emergency savings belong in the third.
The CFPB recommends setting aside an emergency cushion before calculating what is available for a down payment. The right amount depends on your household. Two steady incomes, one variable income, an older house, and upcoming parental leave create different needs.
Be honest about which money is actually available. Retirement accounts and money already committed to another bill are not interchangeable with cash sitting in savings. Home equity is not an emergency fund you can withdraw on demand.
What 20% does, and what it does not do
On a conventional purchase loan, putting 20% down generally avoids private mortgage insurance, or PMI. A smaller loan also means less principal and interest each month if the rate and term stay the same. Your quoted rate and other loan costs may change with the down payment, so get actual comparisons from a lender.
With less than 20% down, conventional borrowers often pay PMI. It protects the lender, not your household, but it can make buying with less upfront cash possible. The CFPB’s PMI guide explains the different ways premiums can be charged. FHA and other loan programs have different insurance or fee structures; the conventional 20% rule is not universal.
The same home, two very different cushions
Imagine a $500,000 home and $130,000 in available cash. Set aside $15,000 for closing costs and prepaid items, plus $5,000 for moving and immediate purchases. Those are hypothetical allowances, not estimates for your transaction.
For a simplified comparison, assume a 30-year fixed loan at 6.5% with either down payment. This is an illustration, not a current rate quote. For the 10% option, assume monthly PMI of $150 solely for this example.
20% down: A $100,000 down payment leaves a $400,000 loan and $10,000 in cash after those allowances. Principal and interest are about $2,528 a month, with no PMI assumed.
10% down: A $50,000 down payment leaves a $450,000 loan and $60,000 in cash. Principal and interest are about $2,844, plus the illustrative $150 PMI, totaling $2,994 a month before other housing costs.
The smaller down payment preserves $50,000 but costs about $466 more each month initially. Neither payment above includes property taxes, homeowners insurance, HOA dues, or maintenance. Those still belong in your full budget.
That extra $466 might crowd out investing or make childcare harder to manage. On the other hand, keeping $60,000 available might matter a lot if the home needs work or your income varies. The example does not pick a winner. It shows why the cash remaining deserves a place beside the monthly payment.
Do not turn the comparison into a stock-market bet
It is tempting to assume that keeping the extra money invested will earn more than the mortgage costs. Maybe it will. But investment returns are uncertain, while the loan payment still comes due. Cash kept for emergencies has a different job from money invested for decades.
Also avoid treating PMI as a permanent cost without checking the loan. Many conventional borrowers can request cancellation when the balance reaches 80% of the home’s original value, subject to conditions. Automatic termination generally uses the scheduled 78% point and requires current payments. Appreciation alone does not make cancellation automatic. Check your disclosures and the CFPB’s cancellation guidance rather than assuming a removal date.
Choose the tradeoff you can live with
Ask for quotes at more than one down payment. Compare cash needed, cash remaining, the full monthly cost, and how quickly you could rebuild savings. Include a less expensive home if neither option feels workable. You do not have to choose between an empty savings account and a payment that consumes the month.
In Buy or Bolt, change the down payment to see the monthly tradeoff. Separately write down what remains after closing and moving. The calculator’s monthly cash cushion is money left from income, not your bank balance or an assessment of your emergency fund.
A down payment should help you settle into the home. It should not leave every ordinary surprise feeling like a financial emergency.