How Much Is a $300,000 Mortgage Per Month?

A $300,000 mortgage is one of the most common loan sizes in the US. Here is the full monthly cost at several rates and terms, what taxes and insurance add, and the income that typically supports it.

The headline number

On a 30-year term at an illustrative 6.5% rate, a $300,000 mortgage costs $1,896 per month in principal and interest. That is the figure most calculators show first, but it is not the full amount you will pay each month, and it changes quickly when the rate or term changes. Treat 6.5% purely as an example rate for the math; your own quote will depend on your credit, down payment and lender.

Payment at different rates (30-year term)

• 5.5%: about $1,703 per month
• 6.0%: about $1,799 per month
• 6.5%: $1,896 per month
• 7.0%: about $1,996 per month
• 7.5%: about $2,098 per month

Notice the pattern: each half-point on the rate moves the payment by roughly $100 a month on this loan size. Over 30 years, that half-point also adds tens of thousands of dollars in total interest, which is why comparing lender quotes matters. You can see exactly how each payment splits between principal and interest over time with the amortization calculator.

What a 15-year term looks like

Shorten the term to 15 years at the same illustrative 6.5% and the payment rises to about $2,613 per month. That is roughly $717 more each month, but the loan is gone in half the time and the total interest drops dramatically. Borrowers who can comfortably afford the higher payment often choose the shorter term for the interest savings; our 15-year vs 30-year calculator compares the two side by side.

Taxes and insurance come on top

Lenders usually require property taxes and homeowners insurance to be escrowed into the monthly payment. On a home bought for around $333,000 (with 10% down to leave a $300,000 loan), a mid-range property tax bill might run about $300 a month and insurance about $180 a month, though both vary widely by state. That puts the realistic total closer to $2,375 a month, before any PMI. If your down payment is under 20%, add private mortgage insurance too — estimate it with the PMI calculator.

What income supports a $300,000 mortgage?

Using the common guideline that housing should stay at or below 28% of gross income, a total payment of about $2,375 a month points to a gross monthly income of roughly $8,480, or about $102,000 a year. With 20% down (a $375,000 purchase price and no PMI), taxes and insurance would be a bit higher but the loan payment lower, landing in a similar range. Lenders also look at your total debts, so a car loan or credit card balances can lower the mortgage you qualify for. The affordability calculator folds those debts into the estimate.

Ways to bring the payment down

1. Increase the down payment to shrink the loan below $300,000.
2. Improve credit before applying so you qualify for a better rate tier.
3. Get quotes from at least three lenders — pricing varies more than most buyers expect.
4. Consider whether paying down the balance faster later, using a payoff calculator to model extra payments, fits your budget better than a 15-year term today.

Total interest and paying extra

At an illustrative 6.5% over 30 years, the interest on a $300,000 loan adds up to well over $380,000 across the full term — more than the original loan. Few borrowers actually pay that full amount, because most sell, refinance or pay extra along the way. Even one additional principal payment a year noticeably shortens the loan and cuts the interest bill. If you are curious what an extra $100 or $200 a month does to your payoff date, the payoff calculator shows the new timeline and the interest saved, which helps you decide whether extra payments beat other uses of that cash.

A $300,000 mortgage is manageable on a wide range of incomes, but the honest number is the full escrowed payment, not just principal and interest. Run the complete figure before you decide what you can afford.

Run your own numbers

Model this exact loan in the mortgage payment calculator, watch it amortize in the amortization calculator, and sanity-check it against your income in the affordability calculator.