Freddie Mac's weekly Primary Mortgage Market Survey, released September 3, put the 30-year fixed conventional rate at 6.71%, up from 6.66% the week before. The 15-year fixed climbed to 6.04% from 5.98%. Neither move is dramatic on its own, but if you're an investor weighing whether to sell a finished flip or refinance it into a long-term rental, this is exactly the number that changes the math -- and it moves differently than the rate on the loan that got you into the deal.
The Numbers
Freddie Mac PMMS, September 3, 2026: 30-year fixed 6.71% (up from 6.66%) | 15-year fixed 6.04% (up from 5.98%) | 30-year fixed one year ago: 6.50%
The PMMS tracks conventional, conforming, fully amortizing purchase loans for borrowers putting 20% down with excellent credit -- in other words, the rate environment for a long-term buy-and-hold refinance, not the rate you're paying on a short-term acquisition and rehab loan.
Why This Doesn't Move Hard Money the Same Way
Hard money and bridge pricing isn't pegged to the 30-year conforming rate. It's priced off short-term cost of capital, the specific deal's leverage and risk, and the lender's own funding costs -- which is why hard money rates have sat in a fairly steady 9%-13% band while the conventional rate has moved up and down around it over the past year. When the conventional rate rises, the gap between "what a rehab loan costs me now" and "what a permanent loan will cost me at exit" narrows. When it falls, that gap widens back out.
Where the Spread Actually Shows Up: Your Exit
That spread isn't an abstraction -- it's the number that decides whether a BRRRR-style hold makes sense on a given property right now. A narrower spread means the long-term refinance you're planning to exit into costs closer to what you're already paying, which reduces the payment relief you get from refinancing out of a short-term loan. A wider spread means that relief is bigger, and holding looks more attractive relative to selling.
| One year ago | 30-year conventional: 6.50% |
|---|---|
| Now (Sept 3, 2026) | 30-year conventional: 6.71% -- roughly 21 basis points higher |
| What moved | The refinance-out rate on a buy-and-hold exit, not the acquisition/rehab rate itself |
What This Means If You're Deciding Whether to Sell or Hold
- Re-run your refinance-out numbers before you assume last quarter's rate still applies -- a 20-30 basis point move changes the monthly payment on a permanent loan more than it looks like it should
- Compare the DSCR on a hold at today's refinance rate, not the rate you modeled when you underwrote the acquisition
- A rising conventional rate doesn't make your rehab loan more expensive -- don't let rate headlines push you into a rushed sale if the deal's exit math still works on its own terms
- If the spread has narrowed enough that holding no longer pencils, that's useful information now, before you've paid for a refinance appraisal to find out
The Bottom Line
Rate headlines tend to get read as one undifferentiated number, but conventional and private-money rates respond to different forces and move on different schedules. The 6.71% print from Freddie Mac matters most at the moment you refinance out of a bridge loan -- not at the moment you take one out. Run both sides of that math separately before you decide whether this deal is a sale or a hold.