What a $350,000 Mortgage Actually Costs Each Month

Your monthly payment on a $350,000 mortgage is roughly $2,100 to $2,500, depending on your interest rate and loan length

The exact number depends on three things: your interest rate, whether you chose a 15-year or 30-year loan, and your down payment. A $350,000 mortgage at 7% interest over 30 years costs about $2,330 per month in principal and interest alone. At 6%, that same loan drops to roughly $2,100. At 8%, it climbs to about $2,570. These numbers shift with every change in rates and loan term.

But your actual monthly payment is usually higher than just principal and interest. Most lenders bundle in property taxes, homeowners insurance, and mortgage insurance (if you put down less than 20%), all rolled into one payment called PITI. That can add $400 to $800 or more per month depending on your location and down payment size.

The numbers below assume you are financing the full $350,000 with no down payment. If you put money down, your loan amount and monthly payment both shrink proportionally.

Key Takeaways

• Principal and interest on a $350,000 mortgage at 7% over 30 years is approximately $2,330 per month; at 6% it is roughly $2,100.
• Your actual monthly payment usually includes property taxes, homeowners insurance, and mortgage insurance, which can add $400 to $800 or more depending on where you live and how much you put down.
• A 15-year mortgage costs roughly 50% more per month than a 30-year loan on the same amount, but you pay far less interest over the life of the loan.
• Every 1% change in interest rate shifts your monthly payment by approximately $200 to $250 on a $350,000 loan.

How interest rate changes affect your payment

Interest rates move constantly, and even a small shift changes what you pay each month. On a $350,000 loan over 30 years, each 1% increase in rate adds roughly $200 to $250 to your monthly payment. A borrower at 5% pays about $1,880 per month; at 6%, that becomes $2,100; at 7%, it is $2,330; at 8%, it reaches $2,570.

Rates vary by lender, credit score, loan type, and market conditions. You do not have one rate—you have options. Getting quotes from three to five lenders takes a few hours and can reveal differences of 0.5% or more, which translates to $100 to $150 per month over 30 years. That difference compounds to tens of thousands of dollars by the end of the loan.

When you lock in a rate, you are committing to that number for a set period—usually 30 to 60 days. If rates drop before closing, you may be able to renegotiate. If rates rise, your locked rate protects you.

The difference between a 15-year and 30-year loan

A 30-year mortgage spreads payments over twice as long, so each month costs less. A $350,000 loan at 7% over 30 years is about $2,330 per month. The same loan over 15 years is roughly $3,280 per month—about 40% higher. But over 15 years, you pay far less total interest. The 30-year loan costs roughly $490,000 in interest; the 15-year costs roughly $140,000.

The choice is not about which is "better"—it is about what your budget allows and what your priorities are. A 15-year loan builds equity faster and costs less in total interest, but it requires a larger monthly payment. A 30-year loan is easier on monthly cash flow but means paying interest for twice as long. Some borrowers split the difference by taking a 30-year loan but paying extra toward principal when they can.

What gets added to your principal and interest payment

Lenders typically collect property taxes and homeowners insurance as part of your monthly mortgage payment, holding the money in an escrow account and paying the bills when they come due. This is called PITI—principal, interest, taxes, and insurance. Property taxes vary wildly by location; a $350,000 home in one county might carry $200 per month in taxes, while the same home elsewhere costs $600 per month. Homeowners insurance typically runs $100 to $200 per month for a home in this price range, though it varies by location, age of the home, and coverage level.

If you put down less than 20%, your lender also requires private mortgage insurance (PMI), which protects the lender if you default. PMI on a $350,000 loan typically costs 0.5% to 1% of the loan amount per year, paid monthly. That works out to roughly $145 to $290 per month. PMI drops off automatically once you reach 20% equity, or you can request removal once you hit that threshold.

Together, taxes, insurance, and PMI can easily add $400 to $800 per month to your principal and interest payment. In high-tax areas or with a small down payment, the total can exceed $1,000 per month in non-principal costs.

How your down payment affects the monthly cost

The larger your down payment, the smaller the loan you need to finance. A 20% down payment on a $350,000 home is $70,000, leaving a $280,000 mortgage. A 10% down payment is $35,000, leaving a $315,000 mortgage. A 3% down payment is $10,500, leaving a $339,500 mortgage. Each dollar you put down reduces your monthly payment and eliminates PMI once you reach 20% equity.

Putting down 20% or more also means you avoid PMI entirely from day one, which saves hundreds of dollars per month. However, a larger down payment means less cash available for closing costs, emergency reserves, or other needs. The math is personal: a smaller down payment keeps cash in your pocket now but costs more per month and in total interest. A larger down payment reduces monthly costs but requires more money upfront.

Comparing your payment to your income

Lenders use a rule called the debt-to-income ratio to decide how much they will lend you. Most want your total monthly debt payments—including the new mortgage—to be no more than 43% of your gross monthly income. On a $350,000 mortgage with a full PITI payment of roughly $2,800 per month, you would need a gross monthly income of at least $6,500 (or about $78,000 per year) to meet that threshold, assuming no other debt.

If you carry car loans, credit card payments, student loans, or other debts, those count toward your total. A borrower with $500 per month in other debt would need a gross income of about $7,700 per month to may have access to for the same mortgage. This is why lenders ask for pay stubs, tax returns, and a list of all debts—they are calculating whether your income can support the payment.

What happens if rates rise or fall before you close

Between the time you get a rate quote and the day you close, rates can move. If you lock your rate, you are protected—the lender cannot raise it. If you do not lock and rates rise, your payment rises too. If rates fall and you did not lock, you can usually renegotiate, though some lenders charge a fee to re-lock at a lower rate.

Locking typically costs nothing but commits you to closing within the lock period, usually 30 to 60 days. If you miss that window, the lock expires and you either pay a fee to extend it or accept the current rate. Some lenders offer a "float down" option, which lets you lock in a rate but still benefit if rates drop before closing—this usually costs a small fee upfront.

Frequently Asked Questions

What if I want to pay off the mortgage faster than 30 years?

You can make extra payments toward principal at any time without penalty on most mortgages. Some borrowers make one extra payment per year, which can shorten a 30-year loan to 20 or 25 years. Others refinance into a shorter-term loan if rates drop. Check your loan documents for prepayment penalties, though they are rare on mortgages.

Does my credit score affect the interest rate I get?

Yes. Borrowers with credit scores above 740 typically get the lowest rates; those below 620 pay significantly more. A 100-point difference in credit score can mean 0.5% to 1% difference in your rate, which translates to $100 to $200 per month on a $350,000 loan. Improving your credit before applying can save thousands over the life of the loan.

Can I refinance later if rates drop?

Yes. Refinancing means taking out a new loan to pay off the old one. If rates drop enough to offset the closing costs (usually $3,000 to $6,000), refinancing can lower your payment or shorten your loan term. Most borrowers refinance when rates drop 0.5% to 1% below their current rate, though the math depends on how long you plan to stay in the home.

What if I get a variable-rate mortgage instead of a fixed rate?

Variable-rate mortgages (ARMs) start with a lower rate than fixed mortgages, but the rate adjusts after an initial period, usually 3, 5, 7, or 10 years. After that, your payment can rise significantly if rates climb. Fixed-rate mortgages cost more upfront but never change. For a $350,000 loan, a fixed rate is more predictable; an ARM is riskier but cheaper initially.

How much of my payment goes to principal versus interest at first?

Early in a 30-year mortgage, most of your payment goes to interest. On a $350,000 loan at 7%, your first payment might be roughly $1,600 in interest and $730 in principal. As you pay down the balance, that ratio flips—by year 20, most of each payment goes to principal. This is why paying extra early in the loan saves so much interest.