Mortgage and refinance rates in the United States moved higher on Saturday, September 12, 2026, marking the second consecutive day of increases. The average rate for a 30-year fixed-rate mortgage reached 6.42 percent, up from 6.38 percent the previous day, while 15-year fixed rates climbed to 5.68 percent. Refinance rates followed a similar trajectory, with 30-year refinance rates settling at 6.47 percent. Borrowers shopping for loans or considering refinancing should verify current terms with licensed lenders, as rates change daily and individual offers depend on credit profile, down payment, and loan-to-value ratio.

Current Purchase Mortgage Rates

The 30-year fixed-rate mortgage, the most common home loan product in the US market, averaged 6.42 percent on September 12, 2026, according to daily rate tracking (Freddie Mac, 2026). This represents a modest increase from the prior session and reflects broader movements in Treasury yields and mortgage-backed securities pricing. Borrowers with excellent credit scores (740 or higher), a 20 percent down payment, and low debt-to-income ratios typically qualify for rates at or below the published average.

The 15-year fixed-rate mortgage stood at 5.68 percent, maintaining its typical spread of approximately 0.75 percentage points below the 30-year product. This shorter-term loan carries higher monthly payments but builds equity faster and saves substantially on total interest over the life of the loan. Adjustable-rate mortgages (ARMs), including 5/1 and 7/1 products, generally offer lower initial rates than fixed-rate loans but carry the risk of future rate adjustments once the fixed period expires.

Refinance Rates

Refinance rates moved in tandem with purchase rates on September 12, 2026. The 30-year refinance rate averaged 6.47 percent, slightly higher than the corresponding purchase rate due to risk-pricing adjustments lenders apply to refinance transactions. The 15-year refinance rate reached 5.72 percent.

Homeowners considering a refinance should calculate their break-even point: the number of months required for monthly payment savings to offset closing costs, which typically range from 2 to 5 percent of the loan amount (Consumer Financial Protection Bureau, 2026). Rate-and-term refinancing makes sense when you can reduce your interest rate by at least 0.5 to 0.75 percentage points and plan to remain in the home long enough to recoup closing costs. Cash-out refinancing, which allows you to tap home equity, typically carries a rate premium of 0.125 to 0.25 percentage points above rate-and-term products.

Read also: Mortgage Interest Rates Today in the US: October 18, 2026 - Mixed Rates as Inflation Concerns Persist

What Is Driving Rate Movements

Mortgage rates track the yield on 10-year US Treasury notes, which move in response to Federal Reserve policy decisions, inflation data, and investor demand for safe assets (Board of Governors of the Federal Reserve System, 2026). The two-day uptick reflects recent economic data that suggested stronger-than-expected consumer spending and persistent inflation pressures, prompting investors to demand higher yields on fixed-income securities.

As covered in Principles of Finance, mortgage interest rates incorporate the lender’s cost of funds, expected inflation, default risk premium, and servicing costs. When Treasury yields rise, mortgage rates typically follow within one to three business days, though the exact spread varies based on mortgage-backed securities market conditions and lender capacity.

Practical Next Step

If you are actively shopping for a mortgage or planning to refinance in the near term, request rate quotes from at least three licensed lenders to compare actual offers rather than published averages. Lenders issue rate locks, typically valid for 30 to 60 days, that protect you from further increases while your loan processes through underwriting and closing. Borrowers with rate-sensitive budgets may benefit from locking rates promptly when they find an acceptable offer, as upward momentum can persist for several days or weeks.

This information is educational and general in nature, not personalized financial or lending advice. Mortgage rates as of September 12, 2026 reflect market conditions on that date; rates change daily and vary by lender, loan program, credit score, down payment, property location, and other factors. Verify current terms and your specific eligibility with a licensed mortgage lender or housing counselor before making financing decisions. For questions about your tax situation related to mortgage interest deductions, consult a licensed tax professional.