01 Mortgage Rates by Credit Score Range
Lenders don't price every applicant individually. They sort borrowers into tiers, usually in 20-point increments, and each tier gets its own rate sheet. On a $300,000, 30-year fixed loan, here's how the average annual percentage rate moves across those tiers, using current data from myFICO's loan calculator:
| FICO score range | Average APR | Monthly payment |
|---|---|---|
| 760 or higher | 6.566% | $1,909 |
| 700 to 759 | 6.846% | $1,965 |
| 680 to 699 | 6.98% | $1,992 |
| 660 to 679 | 7.039% | $2,004 |
| 640 to 659 | 7.169% | $2,030 |
| 620 to 639 | 7.341% | $2,065 |
The gap between the top two tiers is small, under $60 a month. Below 660, though, each drop starts costing more than the last one, and that's where most of the real damage sits.
Minimum score requirements shift by loan type too, which matters if you're weighing FHA against conventional financing. Conventional loans generally start at 620. FHA opens the door at 580 with 3.5% down, or even 500 with 10% down. VA loans typically want 620, and jumbo loans usually sit closer to 700. If your score falls under 620 right now, our credit score resource center breaks down which moves raise it fastest before you submit an application.
02 How Much Extra You Pay with a Lower Score
Rate differences look small on paper until you run them across three decades. A borrower at 620 to 639 pays an average of $2,065 a month on that same $300,000 loan. A borrower at 760 or higher pays $1,909. That's $156 a month, or $1,872 a year, sitting on the table simply because of where the score landed on application day.
Total interest tells the fuller story. Over the full 30-year term, the 620 to 639 borrower pays $443,429 in interest. The 760-plus borrower pays $387,326. The difference, $56,103, is larger than the down payment on most starter homes. The Consumer Financial Protection Bureau lists credit history among the handful of factors lenders weigh most heavily when setting a rate, alongside loan-to-value ratio and debt load.
Move up just one tier, from 680–699 to 760-plus, and the savings still land around $83 a month, or roughly $29,000 in interest over the loan's life. You don't need a perfect score to see meaningful savings. You need to clear the next tier up.
03 The Real Cost Difference: 620 vs 740 vs 800 FICO
Here are the three numbers the title promises, lined up side by side. All three assume the same $300,000 loan, 30-year fixed, no points paid:
| FICO score | APR | Total interest over 30 years |
|---|---|---|
| 620 | 7.341% | $443,429 |
| 740 | 6.846% | $407,393 |
| 800 or higher | 6.566% | $387,326 |
The spread between 620 and 800 runs past $56,000, and that number sits on top of closing costs, any points you buy down, and whatever a lender charges to lock the rate. A borrower who spends four months paying down cards and disputing errors, moving from 620 to the mid-700s, can offset that cost many times over before the loan even closes.
Loan type changes this math slightly. FHA financing often costs less for buyers with lower scores because its mortgage insurance runs cheaper than private mortgage insurance on a conventional loan at the same score. VA loans typically price 0.15% to 0.25% below conventional rates for eligible borrowers, while jumbo loans run 0.25% to 0.5% higher across almost every tier.
04 Quick Wins to Boost Your Score Before Applying
None of this requires a year of repair work. Most of these moves show up on your report within one to two billing cycles, sometimes faster, which makes them worth doing even if you plan to apply in 60 days:
- bring credit card balances below 30% of the limit, and aim for under 10% if the timeline allows;
- pay any past-due accounts current first, since a recent late payment hurts more than an old one;
- pull your reports from all three bureaus at AnnualCreditReport.com and dispute anything unfamiliar or incorrect;
- hold off opening new credit cards or auto loans for at least six months before you apply;
- leave old, paid-off cards open, because closing them shortens your average account age and drops available credit.
Utilization changes are the fastest lever here. Time your payment to post before the statement closing date, not the due date, and the lower balance is what gets reported to the bureaus. A 20-point jump from that single change can shift you into a cheaper rate tier before your next paycheck arrives.
Rate shopping still matters even after the score is set. Request a Loan Estimate from a few lenders on the same day, since scores can pull differently between them and a fixed rate on paper isn't the same as the rate you'll actually close with.