How much more does 7% cost vs 6% on a mortgage?

On a $300,000 30-year mortgage: 6% costs $347,640 in total interest. 7% costs $418,560. The difference is $70,920 — plus your monthly payment is $197 higher at 7% ($1,996 vs $1,799). That single percentage point costs nearly $71,000 over the life of the loan.

Is 1% difference in mortgage rate a big deal?

Yes. On a $300,000 loan, 1% costs approximately $71,000 over 30 years and adds about $197/month. On a $400,000 loan, the gap is $94,700+. A single percentage point is one of the largest cost factors in homeownership.

Should I wait for rates to drop from 7% to 6%?

It depends on your market. If home prices are rising 3-5% annually, waiting a year costs $9,000-$20,000 in price appreciation on a $300,000+ home — potentially more than the interest savings from a lower rate. Many buyers purchase at 7% and plan to refinance when rates drop. The math favors buying now and refinancing later only if rates actually decline within 2-3 years.

How much more per month is 7% vs 6% on a mortgage?

On $250,000: $164/month more ($1,663 vs $1,499). On $300,000: $197/month more ($1,996 vs $1,799). On $400,000: $263/month more ($2,661 vs $2,398). The dollar difference scales linearly with loan size.

Rate Comparison Updated May 2026 8 min read

6% vs 7% Mortgage Interest — What One Percent Really Costs You

The punch line: On a $300,000 30-year mortgage, the difference between 6% and 7% is $197/month and $70,920 in total interest. That single percentage point is one of the most expensive numbers in personal finance. Below is the full breakdown at every common loan size. Calculate your exact scenario.

Monthly payment: 6% vs 7% at every loan amount

One percentage point sounds small. In absolute terms, it is not. Here's the monthly payment comparison across common loan sizes:

Loan Amount	6% Payment	7% Payment	Monthly Difference
$200,000	$1,199	$1,331	$132
$250,000	$1,499	$1,663	$164
$300,000	$1,799	$1,996	$197
$350,000	$2,098	$2,329	$231
$400,000	$2,398	$2,661	$263
$500,000	$2,998	$3,327	$329

At $300,000, the monthly difference is $197 — roughly a car payment or a month's worth of utility bills. At $500,000, it's $329/month. These aren't rounding errors. They're the difference between comfortable and stretched for many household budgets.

Total interest: where one percent really hurts

Monthly payment differences are noticeable. Total interest differences over 30 years are staggering:

📊 Total interest paid — 6% vs 7% over 30 years

$200k at 6%$231,640 interest

$200k at 7%$279,160 interest → $47,520 more

$300k at 6%$347,640 interest

$300k at 7%$418,560 interest → $70,920 more

$400k at 6%$463,280 interest

$400k at 7%$557,960 interest → $94,680 more

On a $400,000 loan, that one percent costs you nearly $94,700 over the life of the mortgage. To put it in perspective: that's roughly 3 years of mortgage payments. The 7% borrower effectively works 3 extra years just to pay the rate premium compared to the 6% borrower on the same house. And this isn't some edge case — it's the difference between two rates that are just one click apart on a rate sheet.

What can you do about a 7% rate?

If you're currently at 7% or considering a purchase at that rate, there are concrete strategies to reduce the impact:

Buy down the rate with points. One discount point (1% of loan amount) typically reduces your rate by 0.25%. On a $300,000 loan, paying $3,000 in points at closing to drop from 7% to 6.75% saves approximately $17,500 in interest over 30 years. The break-even is about 3 years. If you plan to stay longer, it's a good deal.

Plan to refinance. If rates drop to 6% within a few years, refinancing from 7% to 6% on a $300,000 remaining balance saves the difference going forward. Closing costs ($3,000-$6,000 typical) are recouped in 18-30 months through the lower payment. The refinance vs overpay guide covers this decision in detail.

Overpay to offset the rate. At 7%, extra payments are extremely effective because there's more interest to avoid. $200/month extra on a $300,000 loan at 7% saves $103,000 in interest. The extra payment calculator guide has the full breakdown.

For current rate data, Freddie Mac's PMMS tracks weekly national averages. The CFPB rate explorer shows rates by location and borrower profile.

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6% vs 7% Mortgage — Questions

How much does 1% interest add to a $300,000 mortgage?

About $197/month and $70,920 over 30 years. Monthly, it's the equivalent of a car payment. Over the loan's life, it's enough to buy a modest vehicle outright.

Should I buy at 7% or wait for 6%?

If home prices are rising 3-5%/year, waiting can cost more than the rate savings. Many buyers purchase at 7% and refinance when rates drop. The math favors buying now if you expect to refinance within 2-3 years — but only if rates actually decline.

Is it worth paying points to buy down from 7% to 6%?

Buying from 7% to 6% would cost about 4 points ($12,000 on $300,000). The monthly savings is $197, so break-even is roughly 61 months (5 years). If you'll stay 7+ years, it's worth it. Under 5 years, probably not.

Can overpaying offset a 7% mortgage rate?

Partially, yes. $300/month extra at 7% on $300,000 saves roughly $100,000 in interest and cuts 7 years. It doesn't make 7% equal to 6%, but it significantly reduces the lifetime cost difference.

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Team OverpayCalc.com

We build and maintain mortgage overpayment tools designed to help homeowners save on interest and pay off their loans faster. Our calculators use verified amortization formulas updated with current rate data.

This content is for educational purposes only. Estimates are based on standard amortization at stated rates. Actual savings depend on your specific rate, balance, and servicer policies. Consult a financial advisor for personalized guidance.