Call Text Book
Mortgage Rates

How Sensitive Is My Mortgage Payment to Rate Changes?

Patrick Kevin FaganPatrick Kevin FaganUpdated August 18, 2026

Your mortgage payment is highly sensitive to interest rate changes. On a $350,000 loan, here is how different rates affect your monthly payment (principal and interest only): 6.5% = $2,212, 7.0% = $2,329, 7.5% = $2,449. Each 0.5% change in rate changes your payment by approximately $117 to $120 per month.

Over the life of a 30-year loan, the difference between 6.5% and 7.5% on a $350,000 loan is over $85,000 in total interest. That is a significant amount of money that could go toward other financial goals.

This sensitivity is why it pays to shop among lenders and improve your credit score before applying for a mortgage. Even a 0.25% difference in rate can save you thousands over the life of the loan.

Patrick's Take

I show every client a rate sensitivity table during our first consultation. I want them to see exactly how much each rate scenario changes their payment. It helps them understand why we focus on their credit score and debt-to-income ratio before we even start looking at homes. A 760 credit score might get you a full percentage point lower than a 620 score. That is hundreds of dollars per month. Work on your credit before you buy.
PF
Patrick Kevin Fagan
Patrick Kevin Fagan

Patrick Kevin Fagan

Loan Officer and Realtor, AXEN Realty LLC

Want to See How Rates Affect Your Payment?

Patrick will show you exactly how different rate scenarios affect your monthly payment.

} })(); >