The Math Behind Putting Down Less Than 20% (2024)

This might come as a surprise, but you don’t actually need to put down 20% on your home. In fact, for first-time homebuyers, the average down payment is just 8% — and it’s possible to put down even less. But how does the math shake out in your monthly mortgage payments?

The Math Behind Putting Down Less Than 20% (1)

Let’s break down the numbers behind putting down less than 20%.

Add in Primary Mortgage Insurance

If your down payment is less than 20% and you have a conventional loan, your lender will require private mortgage insurance (PMI), which is an added insurance policy that protects the lender if you can't pay your mortgage.This payment will be added onto your monthly mortgage bill, requiring you to spend slightly more per month.

Some lenders offer loan products that do not require you to have PMI. However, in return, these lenders will often charge higher interest rates.

The cost of PMI varies based on your credit score and your loan-to-value ratio (the amount you owe on your mortgage compared to its value). It also depends on the insurer. You can expect to pay between $30 and $150 per month for every $100,000 you borrow.

Some types of loans, such asFHA loans, do require you to pay PMI for the life of the loan. However, for many other types of loans, once you've built20%equityin your home, you can ask your lender to cancel your PMI and remove that expense from your monthly payment.

Add in Principal and Interest

When you put down more cash up front, the amount of money you need to borrow decreases. The less you borrow, the lower your monthly payment (principal + interest).

To help you understand the math, here’s an example of how different down payment amounts affect your monthly mortgage payment, PMI and total monthly expenses over the life of your loan.

A $300,000 Home: 5% Down vs. 20% Down

5% Down Payment20% Down Payment
Down Payment Amount$15,000$60,000
Loan Amount$285,000$240,000
Mortgage Term30-year fixed rate30-year fixed rate
Interest Rate7%7%
Monthly Mortgage Payment (Principal + Interest)$1,896$1,597
PMI$274$0
Total Monthly Payment (Excluding Property Taxes, Insurance)$2,170$1,597
The Math Behind Putting Down Less Than 20% (2024)

FAQs

What happens if you put less than 20% down? ›

With less than 20 percent down on a house purchase, you will have a bigger loan and higher monthly payments. You'll likely also have to pay for mortgage insurance, which can be expensive.

Does it make sense to put down more than 20%? ›

Finally, choosing a down payment higher than 20 percent means that you will have lower monthly mortgage payments in the future. You are borrowing less so you will owe less. This can provide a nice boost to your monthly budget moving forward as you will have more free cash flow each month.

What is meant by the 20 percent down rule? ›

Putting 20 percent or more down on your home helps lenders see you as a less risky borrower, which could help you get a better interest rate. A bigger down payment can help lower your monthly mortgage payments. With 20 percent down, you likely won't have to pay PMI, or private mortgage insurance.

What is the math for down payment? ›

How do you calculate down payment? Down payment is calculated using the formula: down payment = down payment percent times purchase price.

Can I put less than 20% down on an investment property? ›

In most cases, this means you can put down significantly less than 20%. For example, you may be able to purchase a property with just 3% down. Although house hacking involves living near your tenants, it could be the way to get your foot into the world of real estate investing.

Do you really need 20 down to buy a house? ›

Fortunately, 20% is no longer the benchmark for a down payment on a house. According to the National Association of REALTORS®, in 2022, the average down payment was 6% for first-time home buyers and 17% for repeat buyers.

Why do sellers prefer 20% down? ›

The difference is that buyers with low down payments are sometimes seen as riskier than those who put down more. Buyers with a 10-20 percent down payment will potentially have an easier time qualifying for a loan, and most likely, they will financially be better able to handle unforeseen inspection or appraisal issues.

What is considered house poor? ›

Key Takeaways. A house poor person is anyone whose housing expenses account for an exorbitant percentage of their monthly budget. Individuals in this situation are short of cash for discretionary items and tend to have trouble meeting other financial obligations, such as vehicle payments.

What are the disadvantages of a large down payment? ›

Drawbacks of a Large Down Payment
  • You will lose liquidity in your finances. ...
  • The money cannot be invested elsewhere. ...
  • It is inconvenient if you will not be in the house for long. ...
  • If the home loses value, so does your investment. ...
  • You might not have the money to begin with.

Is $20,000 enough for a down payment on a house? ›

Aim for a down payment that's 20% or more of the total home price—that's $40,000 for a $200,000 house. This minimum is partially based on guidelines set by government-sponsored companies like Fannie Mae and Freddie Mac.

Is $2000 a good down payment on a car? ›

If you're considering a car that costs $25,000, putting down between $2,000 and $4,000 would be wise. However, the true answer to this question depends on your negotiation strategy. If you can negotiate a lower price or better terms, putting more money down may not save you much interest.

How do I solve 30% of 50? ›

Finally, simplify the equation to solve for . Multiply 30 by 50 and divide both sides by 100. Hence, 30% of 50 is 15.

What is the formula for the monthly payment? ›

Monthly Payment = (P × r) ∕ n

Again, “P” represents your principal amount, and “r” is your APR. However, “n” in this equation is the number of payments you'll make over a year. Now for an example. Let's say you get an interest-only personal loan for $10,000 with an APR of 3.5% and a 60-month repayment term.

What percentage is a typical down payment? ›

Average Down Payment by State
StateMedian Down PaymentAverage Down Payment Percentage
California$85,17918.20%
Colorado$66,06217.20%
Connecticut$43,03315.80%
Delaware$36,05215.60%
47 more rows
Apr 18, 2024

Is a 5 down payment a bad idea? ›

Remember, if you're a first-time home buyer, a 5–10% down payment is fine. Keep in mind, any down payment less than 20% will come with that monthly PMI fee, which will increase your monthly mortgage payments.

Can I put 10 down on a house? ›

Yes, you can buy a house with 10% down or less in California. According to the National Association of Realtors, first-time buyers often pay an average of 6% as a down payment for a house or condo.

Is 15 down on a house good? ›

The average down payment for a house in California typically ranges between 15% to 20% of the purchase price, but can vary depending on your mortgage lender and financial situation.

What is the lowest down payment for a house? ›

A Federal Housing Administration (FHA) Mortgage has a minimum down payment of only 3.5%. It's available to all qualified buyers, regardless of income level.

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