The average 30-year fixed mortgage in the United States is back above 7%. Freddie Mac’s Primary Mortgage Market Survey put the national average at 7.03% on September 24, up from 6.95% a week earlier and the first reading above 7% since January 2025.

That move did not come from the housing market. The 10-year Treasury yield, the benchmark lenders use to price long-term home loans, climbed to roughly 5.1% during the same week, a level market reports described as a 19-year high, after the Federal Reserve raised its policy rate on September 16.

The practical question for a household is not what the bond market did, but what it costs. The answer depends on whether you are borrowing, holding cash, or already own bonds.

The bond selloff that repriced home loans

On September 16 the Fed lifted its target range for the federal funds rate by a quarter point, to 3.75% to 4.00%, with every voting member in favor. The statement described inflation as still elevated and said the move supports a “timelier return” to the committee’s 2 percent goal.

Mortgage rates do not follow the funds rate. They follow the 10-year Treasury yield, plus a spread that covers servicing costs, credit risk, and demand for mortgage-backed securities. That is why the 30-year average had already been drifting up for weeks before the Fed met, and kept climbing after.

The official data shows how fast the ground shifted. Treasury’s daily yield curve had the 10-year at 4.96% on September 21. Two days later market data put it near 5.1%, and it edged higher again the following day. The 30-year Treasury, the maturity closest to long-term borrowing costs, sat at 5.29% on September 21.

Why the 10-year yield drives your rate

Short-term borrowing responds to the Fed almost mechanically. Credit card rates, home equity lines of credit, and most auto loan pricing reset within weeks of a policy move because they are tied to the prime rate, which moves with the funds rate. Our explainer on how Fed rate decisions reach your wallet walks through that chain.

Long-term borrowing works differently. A lender writing a 30-year mortgage is competing with Treasury bonds for the same investor dollars, so it prices the loan off the 10-year yield. When that yield rises, mortgage rates rise with it, even if the Fed never touches its policy rate again.

Market commentary has pointed to two forces behind the climb in long-term yields: expectations that inflation cools slowly rather than quickly, and the volume of Treasury debt that has to be sold to fund the federal deficit. Both push prices down and yields up.

What 7.03 percent does to a monthly payment

A few tenths of a point look small in a headline. On a real loan they are not small in a budget. The table below prices a $400,000 mortgage at the survey readings from the past two weeks.

Survey rate Monthly principal and interest Compared with 7.03%
6.76% (previous week) $2,597 $72 lower
6.95% (September 17) $2,648 $21 lower
7.03% (September 24) $2,669 current reading

Those figures cover principal and interest on a 30-year fixed loan with equal monthly payments. Property taxes, homeowners insurance, mortgage insurance, and HOA dues sit on top of them and vary by address.

The last column is the cost of one week. A buyer who locked on September 17 pays about $21 less per month than the same buyer locking on September 24, and $72 less than one who locked two weeks earlier. Over 30 years, a $400,000 loan at 7.03% carries about $560,900 of interest on top of the principal.

Higher rates also shrink what a set payment can buy. At a 6.50% rate, a household spending $2,600 a month on principal and interest could support a loan of roughly $411,000. At 7.03%, the same $2,600 supports about $389,600, which is $21,000 less house for the same monthly check. That is the part of a rate move that shows up in household budgets rather than in headlines, and it is one reason a budget that assumes a fixed housing cost can quietly stop working.

Savers get the other side of the trade

Every rise in yields is also a rise in what cash can earn, for savers willing to move it. Treasury bills are the cleanest version of that trade. The 3-month bill yielded 4.17% on September 21, the 6-month bill 4.27%, and the 1-year note 4.45%, according to Treasury’s daily yield curve.

The average US savings account pays a fraction of that. FDIC data put the national rate on savings deposits at 0.38% and money market accounts at 0.63%. On $20,000, the gap between a 3-month Treasury bill and the average savings account comes to about $758 a year.

Two details matter before anyone moves money. Interest on Treasury obligations is exempt from state and local income tax but remains taxable at the federal level, as IRS Publication 550 explains. Short-term yields can also fall as quickly as they rose, so cash needed in the next few months belongs somewhere it can be reached without being sold at a bad moment. That is the same reasoning behind a fully funded emergency fund.

If you already own bonds

Rising yields cut the value of bonds that already exist. A bond issued at a lower yield is worth less to a buyer who can get more from a new one, and the price swing grows with the time left until maturity. The current data shows that spread clearly: the 2-year Treasury yielded 4.76% on September 21 while the 30-year sat at 5.29%.

The same split decides what an investor actually feels. A bond fund never holds anything to maturity, so its share price can fall even while the yield it distributes rises. An investor who owns individual bonds and intends to hold them to maturity is less exposed to interim price swings and more exposed to the question of what the money earns when the bond matures.

Income matters alongside price. A fund’s distribution yield tends to rise as the bonds inside it mature and are replaced with higher-yielding ones, so a long-term holder can recover part of a price drop through larger payments, as long as the holding period is long enough to let that happen.

The Treasury has also been buying back some of its oldest and least liquid bonds, a program it expanded in early September. Buybacks are aimed at market liquidity rather than at steering yields, and their size is small next to the daily volume of Treasury trading.

What would pull yields back down

Nothing in one week settles where rates go next. The Fed’s own statement kept both directions open, framing the September increase as support for a faster return to 2 percent inflation rather than as the first step of a fixed path.

The inputs that drove this move are the inputs to watch: inflation reports, jobs data, and any sign that energy or shelter costs are cooling. Long-dated yields also respond to how much debt the Treasury has to sell and how eager buyers are to absorb it.

An approach that survives either outcome is to plan around the rate you have instead of the rate you are hoping for. A housing budget that works at 7% still works if rates fall.

Borrowers face a version of the same uncertainty. Anyone comparing a fixed rate with an adjustable one is choosing who carries the risk of future rate moves, since the adjustable loan starts lower but can reset upward later. Locking a rate removes the risk that pricing gets worse before closing, and it also gives up the chance to gain if pricing improves. Neither path is free, which is why the useful comparison is between the offers actually available on the same day.

Data notes and calculations

Payment and buying-power numbers above are our own calculations, based on the rates cited and a 30-year fixed loan with equal monthly payments. They cover principal and interest only and exclude fees. Policy and market figures come from these sources:

Yields and mortgage rates change daily. The values above reflect the dates shown and may differ from the market when you read this.