How Much Is the Monthly Payment on a $300,000 Mortgage?
A $300,000 mortgage is near the national median. Break down your monthly cost, compare rates, and understand how much income you really need.
Calculate Your $300K Mortgage Payment
Understanding Your $300,000 Mortgage Payment
At 6.5% fixed interest over 30 years, a $300,000 mortgage comes with a monthly principal and interest payment of approximately $1,896. Over the full loan term, you will pay about $382,633 in interest, bringing the total cost to $682,633.
A $300,000 mortgage typically corresponds to homes priced between $330,000 and $400,000, depending on your down payment. This price range covers:
- Single-family homes in suburban neighborhoods across most of the country
- Townhouses and condos in competitive metropolitan areas
- Starter homes in higher-cost markets like parts of the Northeast and West Coast
To comfortably afford this payment, most financial advisors recommend a gross annual income of at least $81,000 using the 28% housing expense rule. Factor in property taxes, insurance, and PMI, and the income requirement can rise to $90,000–$100,000.
$300K Mortgage at Different Interest Rates (30-Year)
The rate you secure has a massive impact on your monthly payment and total cost. Compare five common rates on a $300,000 loan over 30 years.
| Interest Rate | Monthly Payment | Total Payment | Total Interest |
|---|
A borrower who secures 5.5% instead of 7.5% saves over $425 per month and more than $153,000 in total interest. Getting pre-approved by multiple lenders — not just your primary bank — is one of the most effective ways to reduce your rate.
15-Year vs. 30-Year Mortgage on $300,000
Choosing a shorter loan term dramatically reduces total interest paid but raises your monthly payment. Here is the direct comparison at 6.5%:
| Loan Term | Monthly Payment | Total Interest Paid | Total Cost |
|---|---|---|---|
| 30 years at 6.5% | $1,896 | $382,633 | $682,633 |
| 15 years at 6.5% | $2,613 | $170,386 | $470,386 |
The 15-year mortgage costs $717 more per month but saves $212,247 in total interest — equivalent to over 11 years of the monthly payment savings on the 30-year loan. If you can comfortably afford the higher payment, the 15-year term is often the better financial choice. The break-even point: if you plan to stay in the home at least 7–8 years, the interest savings significantly outweigh the higher monthly burden.
Also compare the 15-year mortgage calculator and 30-year mortgage calculator for any loan amount.
Frequently Asked Questions
What is the monthly payment on a $300K mortgage?
At 6.5% interest over 30 years, the monthly principal and interest payment is approximately $1,896. With a 15-year term at the same rate, the payment increases to about $2,613 but saves you over $223,000 in total interest. Your full monthly payment will also include property taxes, homeowners insurance, and possibly PMI.
What salary do I need for a $300K mortgage?
Using the 28% housing-to-income guideline, you need a gross annual income of roughly $81,000 to $100,000 for a $300,000 mortgage, depending on your rate, taxes, and insurance. Lenders also look at your total debt-to-income ratio (DTI), which should generally stay below 43%. If you have car payments or student loans, you may need a higher income to qualify.
Is a $300K mortgage considered a lot?
A $300,000 mortgage is close to the national median home loan amount, making it one of the most common loan sizes in the US. Whether it is "a lot" depends on your income and local market. In affordable regions, $300K buys a spacious family home. In expensive coastal cities, it may only cover a small condo. The key metric is your debt-to-income ratio, not the absolute dollar amount.
How much does one extra payment per year save on a $300K mortgage?
Making one extra payment per year on a $300,000 mortgage at 6.5% (equivalent to adding $158/month to each payment) shortens the loan by approximately 4.5 years and saves around $68,000 in total interest. An even simpler method: divide your monthly payment by 12 and add that amount to every payment — the equivalent of one extra payment annually. Use the Mortgage Payment Calculator to model the exact impact of extra payments on your specific loan.
Compare Other Mortgage Amounts
Use our main Mortgage Payment Calculator for custom amounts, or explore these scenarios:
Learn How Mortgage Payments Work
Understand amortization, how your payment splits between principal and interest, and strategies to pay off your mortgage faster.
Read the guide →What to Look For When Comparing Mortgage Rates
Even a 0.25% difference in your mortgage rate changes your total interest paid by tens of thousands of dollars over a 30-year term. When evaluating lenders, consider these factors alongside the headline rate:
- APR vs. interest rate — the APR includes origination fees and gives a more accurate total-cost comparison across lenders
- Points — paying discount points upfront lowers your rate but extends the break-even period; worthwhile only if you stay in the home long enough
- Fixed vs. adjustable — ARMs start lower but carry rate-reset risk after the initial period; fixed rates offer long-term payment certainty
- Lender type — banks, credit unions, and online lenders each offer different rate structures, underwriting timelines, and service models
- Rate lock period — confirm how long the quoted rate is guaranteed during the underwriting process before you are committed