I’d be the first to tell you that a mortgage calculator can ruin a pleasant afternoon of house hunting.

You find a place you like. The seller cuts the asking price, and the agent hints there’s room to negotiate. Then you enter the loan amount and see what the monthly payment would be.

However, in the current scenario, I can understand why buyers are hesitating. 

Freddie Mac’s latest survey puts the average 30-year mortgage rate at 7.4%, compared with 6.3% a year ago. For a $400,000 loan, my calculations put the difference at roughly $294 per month, or $3,524 per year.

Interestingly, I recently covered a Redfin report that showed the housing market is shifting in buyers’ favor, though not through the dramatic price declines many might expect. 

That said, the mortgage math may not get easier anytime soon.

In a note shared with me, Bank of America says September’s inflation surprise strengthens the case for another Federal Reserve rate hike in October. That’s a far more urgent take than the rest of Wall Street and the relatively cautious stance recently expressed by Fed officials.

Nevertheless, the difference isn’t academic and will likely shape how long borrowers wait for relief.

Inflation’s latest surprise puts an October Fed hike back in play 

The September inflation report just gave investors another jolt, complicating the Fed’s interest rate outlook in the process.

Consumer prices rose 3.7% from a year earlier, up from 3.4% in August, while core inflation, which excludes food and energy, reached 2.6%. Both remain above the Federal Reserve’s 2% inflation goal, although the Fed formally targets inflation using the separate Personal Consumption Expenditures index.

More Fed:

That was enough for Bank of America to stick with a forecast many investors had begun to discount. 

The bank’s analysts led by Stepehen Juneau, reaffirmed the call for an October rate hike, on the back of the renewed inflation pressures.

Markets reacted quickly. According to Investing.com, traders raised the implied probability of an October hike from roughly 22% before the inflation report to approximately 47% afterward, as of Oct. 14.

Naturally, that’s another major blow for households.

Credit cards and other variable-rate loans are sensitive to Fed policy, while fixed mortgage rates depend more heavily on longer-term Treasury yields and inflation expectations.

Things get trickier for homebuyers as well, since a buyer who could borrow $400,000 at 6.3%, with monthly principal and interest of roughly $2,476, could borrow only about $357,600 at 7.4% while maintaining the same payment. That’s approximately $42,400 less borrowing power, even before taxes and insurance.

And the inflation surprise wasn’t just about gasoline. 

What concerns BofA is that September’s price increases spread across both goods and services, making the case for waiting increasingly difficult.

 Bank of America expects an October rate hike, despite other banks favoring December. 

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BofA says oil, AI, and stubborn housing costs are fueling inflation

Bank of America dismissed much of August’s inflation surprise as mostly concentrated in specific sectors such as wireless services, airfare, and hotel stays.

September looks different, though, and the bank argues that price increases have spread across goods and services, making them harder for the Fed to shrug off.

Energy is the obvious source. 

CNBC reports that the CPI energy index jumped 5.2% in September, with gasoline up 9.1%. BofA also links rising airfares and rental-car costs to higher energy prices following the Iran conflict.

However, the more surprsing culprit is AI. BofA says demand for data centers is spilling into consumer technology goods that use some of the same components. Information-technology commodities rose 0.9% in September, contributing about 0.02 percentage points to monthly core CPI.

Interestingly, Goldman Sachs also identified an AI inflation effect, estimating it adds about 0.45 percentage points to annual core PCE inflation as reported by MarketWatch. But Goldman expects that effect to diminish in 2027. 

Housing is another complication. Owners’ equivalent rent rose 0.35% in September, up from 0.19% in August. BofA isn’t predicting a new rent surge; it believes the earlier slowdown in shelter inflation has largely run its course.

Together, those pressures led BofA to raise its September core PCE tracking estimate from 0.22% to 0.32% month over month. 

For perspective, if 0.32% persisted for 12 months, it would compound to roughly 3.9% annually, comfortably above the Fed’s 2% target. 

To me, the question isn’t whether inflation surprised; it’s how long those pressures could last. Falling oil prices or cooling AI demand could justify patience. At the same time, sticky housing and services inflation would strengthen BofA’s case. 

BofA sees October, Citi sees December as Fed officials urge patience 

Although Bank of America sees a difficult choice ahead for the Federal Reserve, not everyone on Wall Street shares that urgency. 

Citi shifted its forecast after September’s hotter inflation report and now expects a quarter-point hike in December, followed by rate cuts beginning in June 2027.

Moreover, UBS forecasts hikes in both December and March 2027, according to Reuters, an outlook that Morgan Stanley economists also share. J.P. Morgan Wealth Management expects another half-percentage-point of tightening but sees greater uncertainty around the timing.

Fed officials have offered another reason for caution. San Francisco Fed President Mary Daly has said an October move isn’t urgent, suggesting policymakers still have time to assess incoming data.

“I don’t feel urgent that we have to decide with a limited set of information. I think we have the time that we need,” she told Reuters. 

Neither decision guarantees relief for borrowers.

A hike could increase costs on variable-rate credit. But holding steady might not lower mortgage rates if investors continue demanding higher Treasury yields to compensate for inflation.

The next clues will come from inflation and jobs data, energy prices, and Treasury yields ahead of the Fed’s Oct. 27-28 meeting. For Americans waiting to refinance or buy a home, the surprise may be that postponing a rate hike doesn’t necessarily make borrowing cheaper.

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