Mortgage rates are one of the most talked-about parts of buying or refinancing a home—and one of the most misunderstood. Here is a plain-English breakdown of how rates are set, what you actually pay, and how to compare offers fairly.
Interest rate vs. APR
The interest rate is the cost of borrowing the principal, expressed as a yearly percentage. The APR, or annual percentage rate, includes the interest rate plus certain lender fees and closing costs, spread over the life of the loan.
When comparing two loans, the APR is usually the better apples-to-apples number. A lower interest rate with high fees can cost more over time than a slightly higher rate with lower fees.
What moves mortgage rates day to day?
Mortgage rates track the broader bond market, especially the 10-year U.S. Treasury yield. When investors expect inflation or stronger economic growth, rates tend to rise. When uncertainty or recession fears dominate, rates often fall.
The Federal Reserve does not set mortgage rates directly, but its policy decisions influence them. Short-term rate changes ripple through the economy and affect investor appetite for mortgage-backed securities.
Why your rate may be different from the advertised rate
Advertised rates assume a perfect borrower profile: high credit score, low loan-to-value ratio, single-family primary residence, and a conforming loan amount. Your actual rate depends on:
- Your credit score and credit history
- Your down payment or equity amount
- The loan program and term length
- The property type and intended use
- Whether you pay points or accept lender credits
Discount points and lender credits
Discount points are upfront fees that lower your interest rate. One point typically costs 1% of the loan amount and reduces the rate by a fraction of a percent. They make sense if you plan to keep the loan long enough to recover the cost.
Lender credits work the opposite way: the lender covers some closing costs in exchange for a slightly higher rate. This can help if you need to preserve cash up front.
Fixed-rate vs. adjustable-rate mortgages
A fixed-rate mortgage keeps the same rate and payment for the life of the loan. An adjustable-rate mortgage starts with a lower rate for a set period, then adjusts periodically based on market indexes.
ARMs can save money if you plan to move or refinance before the fixed period ends. Fixed rates are usually better for buyers who want predictable payments for the long haul.
How to get the best rate for your situation
The lowest advertised rate is not always the best deal. Compare Loan Estimates, ask about total closing costs, and consider how long you’ll keep the loan. A mortgage broker can shop multiple lenders at once, which often produces better terms than going to a single bank.
Want a rate quote for your scenario? Talk to a specialist about locking at the right time.