Why Haven’t Mortgage Rates Followed the Fed’s Lead?
Understanding the disconnect between Federal Reserve policy and home loan costs
by Dr. Chris Brown, Ph.D., CFP® and Dr. Ron A. Rhoades, JD, CFP®
If you’ve been watching mortgage rates lately, you might be scratching your head. In September 2025, in late October 2025, and again in December 2025 the Federal Reserve cut interest rates – something that typically signals good news for borrowers. Yet instead of celebrating dramatically lower mortgage payments, many potential homebuyers found themselves facing costs that failed to move in lockstep with the central bank’s actions. What’s going on?
Don’t worry – you’re not missing something obvious, and the economy isn’t broken. This apparent contradiction happens more often than you might think. Understanding why can help you make smarter decisions about buying or refinancing a home.
The Fed Rate vs. Your Mortgage Rate: They’re Different Animals
First, let’s clear up a common misconception. When the news reports that “the Fed cut rates,” they are talking about the federal funds rate, which is the interest rate banks charge each other for overnight loans. The Fed sets a target range for this rate as a key tool of monetary policy to influence the economy, impacting everything from inflation to interest rates on consumer loans like credit cards and mortgages. The current target range (as of December 12, 2025) is 3.5% to 3.75%.[1]
Your mortgage rate, on the other hand, is tied to much longer commitments. When you get a 30-year fixed mortgage, you are asking a lender to lock in a rate for three decades, a completely different risk proposition than an overnight loan between banks.
This 30-year commitment means that the long-term interest rate that really matters for home loans is the 10-Year U.S. Treasury Yield, which lenders use as a primary guide for pricing home loans.[2]
The table below illustrates this critical disconnect by comparing the Federal Reserve’s actions to the corresponding movements in the key benchmark (the 10-Year Treasury) and the consumer’s actual cost (the 30-Year Mortgage Rate) across the two rate-cut dates and today’s market:
The Disconnect: Why a 0.75% Cut 50 in Fed Funds Rate Didn’t Equal a 0.50% Cut in Mortgage Rates
The data highlights a significant gap: Although mortgage rates have trended lower, they have not declined by as much as the 0.75% cumulative Federal Reserve rate cuts since the beginning of September 2025. Specifically, the Fed cut its target rate by a total of 50 basis points (bps). However, the 30-year fixed-rate mortgage only fell by 13 basis points, moving from 6.35% (on September 11, 2025) to 6.22% (on December 11, 2025).
The explanation for this lies in three primary forces that govern long-term rates:
1. Inflation Expectations Keep Long-Term Yields High
The Federal Reserve cut rates because it saw signs of a slowing labor market and possible downside risks to employment. However, the market’s primary concern remained the persistence of inflation, which was sticky around 3% (above the Fed’s 2% target). When investors lend money long-term by buying 10-Year Treasury bonds, they demand a higher yield to compensate for the risk that inflation will erode the value of their fixed payments over the next decade. If investors believe the Fed is easing too quickly or that future inflation will be higher, they sell bonds, which drives the bond price down and the yield (rate) up. This mechanism prevents the 10-Year Treasury yield from falling significantly, thus anchoring the mortgage rate.
2. The Mortgage-Backed Securities Spread
A mortgage rate is essentially the 10-Year Treasury yield plus a spread, which accounts for lender profit, servicing costs, and the risk of default and prepayment. This spread is also affected by the market for Mortgage-Backed Securities (MBS), which are the primary funding source for most home loans. During times of economic uncertainty, bond buyers often demand a wider spread to purchase MBS, seeing them as riskier assets than government debt. After the September cut, the average mortgage rate actually rose from 6.26% to 6.30% the following week as markets processed the lingering risk factors and tariffs, confirming the initial market disappointment.
3. Global and Fiscal Dynamics
Long-term bond yields are also influenced by global demand and the supply of U.S. government debt. Large new Treasury auctions and global economic shifts (such as international trade tensions) introduce volatility that is entirely separate from the Federal Funds Rate. If the U.S. government needs to issue more debt, the sheer increase in supply can push yields higher, overriding the Fed’s short-term easing policy.
The surprising path of mortgage rates from September through early December of 2025 provides a valuable lesson for individual investors: Do not rely on a single indicator like the federal funds rate. Instead, look to the long-term bond market – the 10-Year Treasury yield – for the clearest signal of where mortgage costs are headed. Understanding this relationship is the key to trying to predict the unpredictable dance between Fed policy and mortgage rates.
About the Authors
Ron A. Rhoades, JD, CFP®
Ron Rhoades is an Associate Professor of Finance at the Gordon Ford College of Business, Western Kentucky University. He also serves as a financial advisor at Scholar Financial, a practice within XY Investment Solutions LLC. With a background as both an attorney and a CERTIFIED FINANCIAL PLANNER™ professional, Ron is a nationally recognized authority on the fiduciary duties of financial advisors.
Chris Brown, Ph.D., CFP®
Chris Brown is a faculty member in the Department of Finance at the Gordon Ford College of Business, Western Kentucky University, and a financial advisor at Scholar Financial, a practice within XY Investment Solutions, LLC. He holds the CERTIFIED FINANCIAL PLANNER™ designation and a Ph.D. in Personal Financial Planning. His research and teaching focus is on behavioral finance, retirement planning, and evidence-based investment strategies.
XY Investment Solutions does not provide tax or legal advice. The tax and estate planning information offered is general in nature. It is provided for informational purposes only and should not be construed as legal or tax advice. Always consult an attorney or tax professional regarding your specific legal or tax situation.
Footnotes
[1] Federal Reserve Bank of New York, Effective Federal Funds Rate (retrieved Nov. 29, 2025).
[2] See, e.g., Fannie Mae. (2024, December 11). What determines the rate on a 30-year mortgage? https://www.fanniemae.com/research-and-insights/publications/housing-insights/rate-30-year-mortgage
