Freddie Mac's weekly survey put the average 30-year fixed mortgage rate at 7.28 per cent on Thursday. A week earlier it was 7.03 per cent. A year ago it was 6.34 per cent. The 15-year rate rose to 6.60 per cent from 6.42.
Two records came with it. The rate is the highest since the week of 22 November 2023, when it stood at 7.29 per cent. And the 0.25-point rise is the largest in a single week since October 2022. It is the sixth weekly increase in a row. In the first week of September the rate was 6.71 per cent.
So American borrowers are paying what they paid at the end of 2023. They are paying it for a different reason, and the difference matters for what happens next.
Same rate, different machinery
A mortgage rate can be split into two parts. The first is the yield on the ten-year Treasury note, which roughly matches how long a typical mortgage lasts before it is paid off or refinanced. The second is everything on top: what investors in mortgage bonds demand for the risk that borrowers repay early or late, plus the costs and margins of the lenders and servicers in between.
In the week of November 2023 when the rate was 7.29 per cent, the ten-year yield averaged about 4.45 per cent. The gap was about 2.84 percentage points. In the week covered by Thursday's survey, the ten-year averaged about 5.23 per cent. The gap was about 2.05 points.
The same rate, in other words, is now built from a much higher bond yield and a much thinner margin. In 2023 the margin was doing most of the damage. Now the Treasury market is.
The ten-year note closed at 5.29 per cent on Wednesday, according to Treasury data, its highest close since 2002. It was around 5 per cent when the Federal Reserve raised rates on 16 September. It was 5.28 per cent on Friday, after the September jobs report.
The cushion
That margin has been shrinking for three years, and it explains why mortgage rates have not risen as much as bond yields.
On this publication's calculation, the gap between the 30-year mortgage rate and the ten-year yield averaged 2.85 points in 2023, 2.52 points in 2024 and 2.30 points in 2025. So far in 2026 it has averaged 1.97. In the decade before the pandemic, from 2010 to 2019, it averaged 1.69.
Had the margin stayed where it was in 2023, today's ten-year yield would produce an average mortgage rate a little above 8 per cent. Borrowers have been spared most of a point by the narrowing. It has been a quiet cushion, and it is mostly used up. The gap is now within about a third of a point of its pre-pandemic average.
Its recent behaviour shows what that means. Through August and the first half of September the gap barely moved, between 1.96 and 1.98 points. It edged up to about 2.03 and then 2.05 in the past two weeks. Since the first week of September, the mortgage rate has risen 0.57 points. The ten-year yield, averaged over the same survey weeks, has risen 0.48. Nearly all of the increase in what homebuyers are quoted has come straight from the bond market.
For borrowers, that changes the arithmetic of waiting. When the margin was wide, it could narrow and offset part of a rise in yields, or add to a fall. With the margin near its old normal, there is little room left on that side. Where the ten-year goes from here, mortgage rates will largely follow.
What it costs
On a $400,000 loan, principal and interest at 7.28 per cent come to about $2,737 a month. At the 6.71 per cent rate of early September, the payment was about $2,584. At this year's low of 5.98 per cent, at the end of February, it was about $2,393.
Put the other way round: a buyer whose budget fit a $400,000 loan four weeks ago can now borrow about $378,000 for the same monthly payment. A buyer who set that budget in February can borrow about $350,000.
Borrowers are responding as that suggests. Mortgage applications fell 6 per cent in the week to 25 September, the Mortgage Bankers Association said in its weekly survey. Refinance applications fell 9 per cent and were 56 per cent lower than a year earlier. Purchase applications fell 4 per cent on a seasonally adjusted basis, and were 14 per cent below the same week of 2025 before adjustment.
"Mortgage rates jumped to their highest level in almost three years, pushing borrowers to the sidelines," said Joel Kan, the association's deputy chief economist. Purchase and refinance applications both fell to their slowest weekly pace since 2025, he said.
Some are changing products instead. Adjustable-rate mortgages, with rates about 80 basis points below fixed loans according to Kan, made up 10.3 per cent of applications, the highest share since October 2025. The association's average rate on a 5/1 adjustable loan rose to 6.47 per cent from 6.10 per cent. An adjustable loan lowers the first payment by moving the rate risk from the bond market onto the household when the rate resets.
The people who are not moving
The other half of the housing market is the people who already have a mortgage, and for them a 7.28 per cent rate is mostly a reason to stay put.
The Federal Housing Finance Agency's National Mortgage Database counted 51.4 million outstanding mortgages in the second quarter of this year. Their average interest rate was 4.4 per cent. Nineteen per cent carried a rate below 3 per cent, and another 30 per cent were between 3 and 4 per cent. Together, almost half of all American mortgages cost less than 4 per cent.
That share is shrinking very slowly. Loans below 3 per cent were 20.2 per cent of the total a year earlier. At the other end, mortgages at 6 per cent or more have grown to 22.5 per cent, the largest share since 2015, as new loans are written at current rates.
For an owner with a 3 per cent mortgage, moving means swapping it for a loan at more than twice the rate. The gap between the average rate on existing mortgages and the rate on a new one is now close to three points. A gap that wide gives owners a strong reason not to sell, and keeps homes off the market.
What to watch
The rate Freddie Mac published on Thursday reflects applications through Wednesday. The ten-year yield ended the week at 5.28 per cent, above its average over the days the survey covered. The next survey is published on 8 October.
The Federal Reserve raised its benchmark rate on 16 September, but mortgage rates do not follow the Fed's rate directly. With the margin over Treasuries close to its pre-pandemic average, the ten-year yield now sets the price of a home loan almost on its own.
Mortgage rates, the year-ago comparisons and the survey methodology are from Freddie Mac's Primary Mortgage Market Survey for 1 October 2026, read on freddiemac.com, and the weekly series published there and on FRED (MORTGAGE30US, MORTGAGE15US). Ten-year Treasury yields are from the US Treasury's daily par yield curve and FRED (DGS10). The comparison with November 2023, the largest-weekly-rise and highest-since findings, the spread between the mortgage rate and the ten-year yield (measured against the average daily ten-year yield over each Freddie Mac survey week, Thursday to Wednesday), its period averages, the 8 per cent counterfactual and the monthly payment figures are this publication's calculations. Payments are principal and interest only on a 30-year fixed loan. Application figures and the quotations from Joel Kan are from the Mortgage Bankers Association's weekly survey for the week ending 25 September 2026, as published by HousingWire (30 September 2026); the MBA release itself could not be retrieved. Figures on the outstanding stock of mortgages are from the Federal Housing Finance Agency's National Mortgage Database aggregate statistics for the second quarter of 2026, downloaded from fhfa.gov; the shares are by number of loans. Accurate to 9am ET on 3 October 2026.
Topics moneyhousingtreasury yieldshouseholdsinterest rates
