Rising inflation could mean a rate hike in December. Here’s how that might affect your rehab loan
Prices in October went up more than expected, and this increase will hit prime-based loans that Massachusetts investors use most often.
Bob Wiltse, REALTOR®
Research & Writing Assistant: Claude.ai
November 11, 2026
The news
Inflation stayed high in October. The Bureau of Labor Statistics reported that the Consumer Price Index went up 0.4% for the month, following a 0.6% increase in September. Core prices, which exclude food and energy, rose 0.3% for the third straight month. Shelter costs also rose 0.3% and made up over 30% of the increase. This is important for anyone tracking Massachusetts rehab loan rates, since markets now expect the Fed to raise rates on December 9.
MortgagePoint said the Dow Jones forecast expected a 0.3% headline and 0.2% core increase. After the report, traders fully expected a quarter-point rate hike at the December 8-9 meeting, and the chance of a half-point hike rose to 13.6% from almost zero. Mortgage Professional America put the odds of a quarter-point hike at 85%. These numbers were probably measured at different times. The Fed kept rates at 3.75% to 4.00% in October after raising them in September.
Long-term rates also increased. Mortgage News Daily listed its 30-year fixed rate at 7.30% on November 10, up 0.12 points in a single day. Freddie Mac’s weekly survey showed 7.18% on November 5, according to FRED. The next Freddie Mac survey comes out Thursday and will probably reflect some of Tuesday’s increase.
A quick note: The BLS did not publish year-over-year rates for October since data from October 2025 are not available.
Massachusetts rehab loan rates: why prime matters most
HELOCs, bank construction loans, and many rehab lines are based on the prime rate. Most hard money loans have a fixed rate for their short term. As of November 6, prime was 7.00%, according to FRED. Banks usually adjust prime by the same amount as the Fed, so a quarter-point hike would likely bring it to 7.25%, and a half-point hike to 7.50%. Fixed 30-year loans and most DSCR (Debt Service Coverage Ratio) loans follow the 10-year Treasury more closely. The bond market reacts to expected Fed moves ahead of time, which is why mortgage rates jumped on Tuesday instead of on the actual vote day.
National vs. Massachusetts vs. Middlesex County
Nationally: rent for primary residences rose 0.2% in October, and owners' equivalent rent rose 0.3%, per BLS. Owners' equivalent rent is the government's estimate of what owners would pay to rent their own home.
In the Boston area, the BLS Boston-Cambridge-Newton report shows prices rose 3.8% over the year through September. Rent for primary residences increased 4.3%, and shelter costs went up 4.0%. Local Boston-area numbers are released every other month, so the next update will be on December 10, just one day after the Fed meeting.
New leases move more slowly: The CPI rent number includes all leases, both old and new, so it tends to lag. Apartment List data for October showed national rents up 0.1% from a year ago. For Massachusetts, the increase was about 0.8%, and for the Boston metro, about 1.0%. These numbers are measured differently from the CPI, so focus on the trend rather than the exact difference.
For Middlesex County, there is no county-level CPI. According to MLS PIN data from Bob’s report over the last six months, 617 two- to four-family homes sold at a median price of $1,025,000 ($386.52 per square foot), with a median of 23 days on the market. Local median prices vary: Lowell 01852 was $690,000 (31 sales), Malden 02148 was $940,000 (56 sales), Medford 02155 was $1,060,000 (41 sales), and Waltham 02453 was $1,062,500 (17 sales). HUD’s FY2027 Small Area Fair Market Rent for a two-bedroom in Waltham ZIP 02451 is $3,640.
The deal math (my own math)
Here are the assumptions: a $1,025,000 Middlesex multi-family home (the six-month median for 2-4 family homes), set up as a two-family, with 25% down and a $768,750 loan, 30-year amortization, taxes at $854 per month (about 1% of the price), insurance at $200 per month, and rent at $7,280 per month (two units at the Waltham SAFMR). A three- or four-unit property at the same price would bring in more rent. In this case, DSCR is rent divided by PITI (Principal, Interest, Taxes, Insurance).
Rate | PITI | DSCR |
|---|---|---|
7.18% (Freddie Mac, Nov 5) | $6,262 | 1.16 |
7.30% (MND, Nov 10) | $6,324 | 1.15 |
7.90% (assumed DSCR loan) | $6,641 | 1.10 |
8.15% (DSCR loan +0.25) | $6,775 | 1.07 |
With a 7.90% rate, you need about $8,300 per month in rent to reach a 1.25 DSCR. At 8.15%, you’d need about $8,470.
For a rehab line of $200,000 fully drawn, interest-only at prime plus 1, the payment is $1,333 per month today at 8.00%. After a quarter-point hike, it would be $1,375, and after a half-point hike, $1,417. That’s $42 to $83 more each month, or about $250 to $500 extra over a six-month rehab.
Rent growth has a bigger impact. On $7,280 in rent, a 1% increase adds about $73 per month, while 4.3% would add about $313. If you use the CPI number instead of the new-lease number, you’ll probably overestimate next year’s rent by about $240 per month.
What it means for investors
Buyers:
When underwriting DSCR loans, use today’s rate plus 0.25 to 0.50. Ask your lender how long the rate lock lasts and what it costs to extend it.
For rehab and bridge loans, check if the rate resets on the hike date or the next billing date, and find out if there’s a rate floor.
Use new-lease rent growth, which is about 1% in Greater Boston, in your pro forma instead of the CPI rent figure.
Sellers:
Buyers with floating-rate loans will notice the hike. Set your price based on the cash flow a buyer can finance at a DSCR rate close to 8%.
If you’re holding a flip with a prime-based loan, weigh the cost of carrying it for another month against making a small price cut.
This is information, not lending, tax, or legal advice. Confirm rates and terms with your lender.
Buying or selling investment property in Massachusetts? Contact Bob Wiltse, REALTOR®, eXp Realty, Global Investor Agent team. 978-793-1719 | bob@bobwiltse.com | bobwiltse.com
Sources
U.S. Bureau of Labor Statistics, "Consumer Price Index - October 2026" (USDL-26-1685), Nov. 10, 2026. https://www.bls.gov/news.release/cpi.htm
The MortgagePoint (Lance Murray), "CPI Rose More Than Expected in October, Complicating Fed's Inflation Fight," Nov. 10, 2026. https://themortgagepoint.com/2026/11/10/cpi-rose-more-than-expected-in-october-complicating-feds-inflation-fight/
Mortgage Professional America (Liezel Once), "Mortgage rates set to rise as October CPI tops forecasts," Nov. 10, 2026. https://www.mpamag.com/us/mortgage-industry/industry-trends/mortgage-rates-set-to-rise-as-october-cpi-tops-forecasts/596855
Mortgage News Daily, "Mortgage Rates" daily index, Nov. 10, 2026. https://www.mortgagenewsdaily.com/mortgage-rates
FRED / Freddie Mac, "30-Year Fixed Rate Mortgage Average (MORTGAGE30US)," week of Nov. 5, 2026. https://fred.stlouisfed.org/series/MORTGAGE30US
U.S. Bureau of Labor Statistics, "Consumer Price Index, Boston-Cambridge-Newton, September 2026," Oct. 14, 2026. https://www.bls.gov/regions/northeast/news-release/2026/consumerpriceindex_boston_20261014.htm
Apartment List, "National Rent Report: November 2026" (October data), Oct. 28, 2026. https://www.apartmentlist.com/research/national-rent-data
Weekly Real Estate News (Nathan S. Pierce), "October Inflation Runs Hotter Than Expected, Renewing Pressure on Mortgage Rates," Nov. 10, 2026. https://wrenews.com/october-2026-cpi-inflation-mortgage-rates-shelter-fed-november-10/
HUD, FY2027 Small Area Fair Market Rents (ZIP 02451), as shown on fairmarketrentmap.com. https://www.huduser.gov/portal/datasets/fmr/smallarea/index.html
FRED, "Bank Prime Loan Rate (DPRIME)," observation Nov. 6, 2026. https://fred.stlouisfed.org/series/DPRIME
MLS PIN, "Listing Statistics," Middlesex County 2-4 family sold, today minus 6 months (report run by Bob Wiltse, Nov. 2026). Content © MLS Property Information Network, Inc.
Comments