From the RatesQ team · Sample question

How much does a 1% rate difference actually matter over 30 years?

This educational scenario and its sample explanations are not posts from real users.

A family member said a 1% lower rate saves you 'tens of thousands' but my LO said it barely matters on a $300k loan. Who's right?

Quick Summary

  1. A rate difference changes payments and interest over time.
  2. The loan amount, term, fees and holding period affect the size of that difference.
  3. Compare the costs over the years you expect to keep the loan, not only the full term.

Sample explanations

From the RatesQ team

Your family member is right for the full 30-year scenario. On a $300k loan at 7% vs 6%, monthly payment goes from about $1,996 to $1,799 — a difference of $197/month. Over 30 years that's $70,900 in total interest savings. Over 10 years it's about $23,600. Your LO is probably thinking about the scenario where you sell or refinance in 5-7 years — in that case the savings are smaller but still meaningful: about $11,800-$16,600. Both are telling the truth depending on the time horizon.

From the RatesQ team

And this is exactly why shopping multiple lenders matters. A 0.25% rate difference on a $400k loan is about $55/month = $660/year = ~$4,600 over 7 years. Getting 3-4 Loan Estimates takes a few hours and can save you more than that. The rates really do vary between lenders.