The Quick Read: As of September 28, 2026, any payment estimate you ran a month ago is stale. Freddie Mac’s survey put the 30-year fixed average at 7.03% for the week of September 24, its fourth straight weekly increase. The Fed raised its target range on September 16. Refresh the rate input first, then check whether your loan is fixed or floating.
Key Takeaways
- Freddie Mac’s 30-year average rose in each of the last four weekly releases, from 6.66% to 7.03%. That is about 37 basis points.
- The Fed’s September 16 hike moves prime-linked debt directly. Fixed mortgage rates follow the bond market instead.
- A weekly average is not a quote. Mortgage News Daily’s daily index sat well above Freddie Mac’s figure on the same day.
- Purchase applications and existing-home sales both softened. Inventory is building.
- Refresh four calculator inputs: rate, loan type, price, and the reset terms on any floating-rate debt.
What Changed
The rate moved four weeks running. Freddie Mac’s survey showed the 30-year fixed averaging 6.71% for the week of September 3, up from 6.66%. It was 6.76% on September 10. Then came a 19 basis point jump to 6.95% on September 17, and 7.03% on September 24. A year earlier, the September 24 comparison was 6.30%.
Two milestones matter. NPR reported the 7.03% reading as the first above 7% in 20 months. The Washington Post called the 6.95% reading a 19-month high. NPR also noted that 7% has no literal significance beyond psychology. I agree. A payment doesn’t know what round number it crossed.
The Fed acted on September 16. The Federal Reserve’s statement shows a 12–0 vote to raise the target range by a quarter point, to 3-3/4 to 4 percent. It says inflation “remains elevated.” CNBC called it the first hike since July 2023. It also reported that 16 of 18 dot-plot participants expect another hike. The next meeting is October 27–28.
Prime moved with it. National Mortgage Professional reported on September 16 that major banks raised the prime rate following the Fed’s move. Home-equity borrowing tied to prime got more expensive right away. Fixed mortgage rates, that piece said, held roughly steady, with the 10-year Treasury staying elevated.
I did not pull an official 10-year figure, so I won’t print a level. Direction is clear, though. Yahoo Finance reported the 10-year topping 5.1% on September 23 and moving above 5.2% the next day. Bankrate had it above 5% on September 23, up from around 4% earlier in the year. Those are secondary sources, not Treasury data. Treat them as direction.
Why Does the Fed Hike Not Equal a Mortgage Rate Hike?
The Fed sets the overnight rate banks charge each other. Fixed mortgage rates track long-term bond yields, mainly the 10-year Treasury. Those yields respond to inflation expectations and federal borrowing, so they can rise before, during or after a Fed move.
That is why the two can move together without one causing the other. NPR described the run-up in yields as sharp since March, driven over the summer by inflation and federal-debt concerns. The hike arrived into a market already moving.
Here is the catch for a calculator. A fixed loan’s rate is set by the bond market at the time you lock. A prime-linked line of credit reprices when the Fed moves. Different clocks, different risks.
Which Rate Number Should You Trust?
None of them is your rate. That is the point. Freddie Mac says its survey covers conventional, conforming, fully amortizing purchase loans for borrowers with 20% down and excellent credit. It is released Thursdays and averages Thursday-through-Wednesday rates. It lags the daily market.
Mortgage News Daily runs a daily index. On September 24, it jumped 19 basis points to 7.45%, from 7.26% the day before, after Treasury yields rose further. Its index page later showed the average lender at 7.50%. That page carries no publication date, so treat it as of my retrieval on September 28.
Freddie Mac’s weekly survey and Mortgage News Daily’s daily index sit more than 40 basis points apart. Neither is wrong. One is a weekly average of a narrow loan profile. The other is a same-day read. Some rate sites also mislabeled an earlier, lower reading as a September 24 report when it was actually from September 17. Cite by release date.
Pick one source, note its date, and stay consistent. Mixing them is how a calculator comes out looking cheerful.
What Should You Refresh in the Calculator?
Start with the rate input. If you ran numbers in August, you were probably near 6.7%. Freddie Mac’s average is now 7.03%. Here is a plain hypothetical: if a rate moves from 6.70% to 7.03%, the gap is about a third of a point. On a large balance held for decades, a third of a point is real money. I’m not giving a payment figure, because your loan differs from a survey average.
Then work down the list.
- The rate input. Use a dated, cited figure as a placeholder. Replace it with a written quote from a broker or lender once you have one.
- The loan type. Fifteen-year loans moved too. Freddie Mac’s 15-year average rose from 6.26% to 6.42% for the week of September 24. Shorter terms carry a lower rate but a higher payment.
- The price. Prices are not falling everywhere, but they are not surging. NAR’s August report put the median existing-home price at $429,100, up 1.6%. The Census Bureau put the median new-home price at $393,700.
- The reset terms. If you hold a HELOC or an adjustable-rate mortgage, the calculator’s first payment is not the last. Prime rose 25 basis points on September 16. Whether and when your loan resets depends on the contract, its margin and its caps.
One more input people forget is taxes and insurance. They sit inside the payment line but don’t move with the Fed. Refresh them from your own bills.
What It Means for Home Buyers
Buyers are stepping back, and inventory is growing. The MBA’s weekly survey, released September 23 for the week ending September 18, showed total applications down 1.5%. The seasonally adjusted Purchase Index fell 1%. The unadjusted Purchase Index was 11% below a year earlier. In the MBA’s September 2 release, purchase applications were only 0.2% below a year earlier. That gap opened in three weeks.
Refinancing has gone quiet. The Refinance Index fell 3% and was 62% below a year earlier. In the September 2 release, it was 19% below. Anyone still waiting on a refinance window is watching it close.
Existing-home sales tell a similar story. NAR’s page, updated September 10, shows August sales at an annual rate of 3.98 million, down 2.0% from July and 1.2% from a year earlier. Inventory was 1.62 million homes, or 4.9 months’ supply. HousingWire noted this was the first annual pace below 4 million since June 2025. NAR’s Lawrence Yun has described the supply figure as the highest in over ten years. Pending sales rose 0.3% in August, so I would not call this a collapse. It is a slowdown.
New homes are a mixed picture. Census reported August sales at a 684,000 annual rate, up 6.4% from a revised 643,000, though Census says that monthly change is not statistically significant. Supply was 8.5 months. Inman reported that the average new-home price fell 8.8% from a year earlier, the only statistically significant change in the release. It also reported builders leaning on discounts and incentives. For a buyer, that means the negotiation may be happening on the builder’s side of the table, not just the rate sheet.
My Take
My read: the rate is the loudest number, but it isn’t the only lever. Sixteen of 18 dot-plot participants expect another hike, and yields are still climbing. I would not plan around a quick reversal. PNC expects no change at the October 28 meeting, though its median dot points to one more hike this year. Nobody knows. Plan for both.
I think buyers are making one of two mistakes. Some are frozen, waiting for a rate that may not come. Others keep running the calculator at last month’s rate and are surprised at the kitchen table. Neither is a plan.
The better move is to fix what you control. Decide your payment tolerance first. Work backward to a price you can carry at today’s market, not at last spring’s. Then let the rate be a variable you re-check, not a verdict.
This one’s a genuine toss-up on timing. Rates could climb more. Inventory and builder incentives could also give buyers leverage. I would not try to time both.
Also, watch the language people use. “The Fed sets mortgage rates” is a common misreading. The Fed sets a short-term rate, and the bond market sets the fixed mortgage rate. Prime-linked products are the exception.
What I’d Do Now
These steps are practical and don’t involve advice to buy or sell anything specific.
1. Re-run every estimate at a dated, cited rate. Write the source and date next to the number. A calculator result without a date is a guess.
2. Compare quotes from the same day. A quote gathered on September 17 and one gathered on September 24 are not comparable. The market moved 8 basis points in the Freddie Mac average alone, and more on the daily index.
3. Understand what a lock does. A rate lock is an agreement to hold a quoted rate for a set period, under stated terms. Locking means the rate is fixed for that period. Floating means leaving the rate open and accepting that it can rise or fall before you lock. Floating is a bet, and after four weekly increases, it is one you should size carefully.
4. Check your floating debt. If you have a HELOC or an ARM, read the contract for the index, margin, cap and reset date. Prime-linked lines reprice with the Fed. I’m not giving a dollar amount, because it depends on your balance and terms.
5. Ask what your file is reviewed on. Some borrowers, including the self-employed and investors, qualify on something other than traditional employment income. National Mortgage Professional reported on September 20, citing S&P, that DSCR loans now make up more than half of securitized non-QM. A DSCR loan looks at a property’s rent against its debt, not the borrower’s paycheck. Our loan options page carries the current guidelines, and any program is subject to lender guidelines and review. If you are self-employed and your income has been delayed or uneven, this piece on timing an asset-depletion mortgage covers one route.
If you’re weighing a purchase or a refinance this fall, Lendmire can walk you through how the current programs fit your file.
For the end-to-end picture of how DSCR loans work — qualification, structures, and the full process — see Lendmire’s complete DSCR loans guide.
Frequently Asked Questions
Did the Fed hike raise my fixed mortgage rate?
Not directly. Fixed rates follow the bond market, mainly the 10-year Treasury yield. Yields were already climbing before the Fed’s September 16 move. Prime-linked debt, like a HELOC, is the product that reprices right away.
What was the 30-year rate in Freddie Mac’s latest survey?
Freddie Mac’s survey put the 30-year fixed average at 7.03% for the week of September 24, 2026. That is up from 6.95% the week before and 6.30% a year earlier. It is a weekly average for a narrow loan profile, not a quote.
Why is the daily index higher than Freddie Mac’s number?
They measure different things. Freddie Mac averages a week of conventional, conforming, 20%-down, excellent-credit loans. Mortgage News Daily reports a daily index, which put the 30-year fixed at 7.45% on September 24. Neither is your personal quote.
Should I lock or float right now?
If the payment works for your budget, lock it. Floating means accepting that the rate can rise before you lock. After four weekly increases and a Fed that may hike again, I would treat floating as a risk, not a strategy. The right choice depends on your closing date and your tolerance.
Will my HELOC or ARM payment change?
Yes, it can. Prime rose after the September 16 hike, and prime-linked borrowing costs rose with it. How much your payment changes depends on your balance, margin and reset terms, so check your contract.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage broker with two platforms: DSCR investor lending across 41 markets, including Washington, D.C., and consumer mortgage programs in 16 states, all arranged through wholesale lending partners. This column is written by Lendmire’s founder and reflects the market as of its publication date; program terms and availability are set by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Freddie Mac Primary Mortgage Market Survey
3. Federal Reserve FOMC statement, September 16, 2026
4. MBA Weekly Applications Survey, September 23, 2026
This article is part of Lendmire’s Mortgage News series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.