Why does the same house now cost hundreds of dollars more per month to finance than it did a year ago? The average rate on a US 30-year fixed-rate mortgage climbed to 7.40% for the week reported on October 8, 2026, according to Freddie Mac, its seventh consecutive weekly increase.
What changed and why rates keep climbing
Freddie Mac, the Federal Home Loan Mortgage Corporation, said the 30-year fixed rate rose from 7.28% the prior week to 7.40%, a level 1.1 percentage points higher than the 6.30% recorded a year earlier. The average 15-year fixed rate also rose, to 6.73% from 6.60% a week earlier. Banking Exchange, citing Freddie Mac’s data, attributes the increase to growing inflation concerns and higher Treasury yields, compounded by rising US energy prices linked to the war with Iran. The move also follows the Federal Reserve’s decision to raise its benchmark interest rate from 3.75% to 4%, its first increase since 2023.
Follow the money: from Treasury yields to your monthly bill
Mortgage rates track Treasury yields, which Banking Exchange reports have risen alongside inflation concerns. As yields rise, lenders charge more to issue new fixed-rate mortgages, which is why the 30-year rate has now risen for seven straight weeks. That higher borrowing cost is already showing up in buyer behavior: the National Association of Realtors reported that sales of previously owned homes fell 2% in August from July, to a seasonally adjusted annual rate of 3.98 million, their slowest pace in more than a year. Mortgage applications have declined for five consecutive weeks, and refinancing applications have dropped to their lowest level since January 2025, to less than half their level a year earlier, according to data cited by Banking Exchange.
Our math: what 7.40% costs on a typical loan
As an illustration based on Freddie Mac’s reported national average rates, a $300,000 30-year fixed-rate mortgage at 7.40% carries a monthly principal-and-interest payment of roughly $2,078. The same loan at last year’s reported average of 6.30% would carry a payment of roughly $1,857. That is a difference of about $221 a month, or roughly $2,652 a year, for an identical loan amount, before taxes, insurance or any discount points. This example uses a round $300,000 balance for illustration only and does not reflect any individual lender’s quote.
This week and what to watch
If you have a mortgage, check whether your rate is fixed or adjustable, since only variable-rate borrowers see their payments move automatically with rate changes; if you are shopping for a home or a refinance, ask lenders for the current 30-year and 15-year rates and compare them against Freddie Mac’s published weekly average. Watch for Freddie Mac’s next weekly rate release, the National Association of Realtors’ upcoming existing-home sales report, and any further Federal Reserve rate decisions. Source: Banking Exchange, October 12, 2026, citing Freddie Mac, the National Association of Realtors and the Federal Reserve. Disclaimer: This analysis is for educational and informational purposes only and should not be construed as financial or investment advice.
