Mortgage rates have moved higher again — and on Long Island, that matters for both sides of the table.
Freddie Mac’s Primary Mortgage Market Survey put the average 30-year fixed at 6.76% for the week ending September 10, 2026. That’s up from 6.71% the week before, and up from a summer low near 6.43% in early July. A year ago, that same weekly print was 6.35%.
Rates aren’t the only story here. Inventory is still tight, and prices have stayed elevated. But when financing costs rise in a market like ours, buyers feel it in the monthly payment — and sellers feel it in how carefully buyers shop.
What’s changed on rates
Here’s the recent arc, using Freddie Mac’s weekly 30-year fixed averages:
- Early July 2026: about 6.43%
- Late August: roughly 6.65%–6.66%
- September 3: 6.71%
- September 10: 6.76%
That’s a meaningful climb over a short stretch. Not a return to the double-digit era — but enough to change what a buyer can comfortably afford, especially at Long Island price points.
The Long Island backdrop
While rates were rising through the summer, the local market stayed competitive.
According to OneKey MLS reporting covered by Long Island Business News, July closed single-family medians were:
- Nassau County: $880,000 — up 2.9% from July 2025
- Suffolk County: $750,000 — matching the June all-time high, and up 7.1% from July 2025
At the end of July, there were 6,207 homes listed for sale across Nassau and Suffolk (single-family, condos, and co-ops) — down 8.4% from a year earlier.
(As of mid-September, August’s full OneKey county report wasn’t out yet. July remains the latest published monthly closed-sale snapshot.)
So buyers are facing higher financing costs and fewer choices. Sellers still have the inventory advantage — but only if the home is priced and presented for this buyer, not last year’s buyer.
What higher rates mean for buyers
Every rate tick shows up in the payment.
Here’s an illustrative example only — not a quote, not your rate, and not a specific listing. On a $700,000 loan amount with a 30-year fixed:
- At 6.43%: about $4,392/month principal & interest
- At 6.76%: about $4,545/month principal & interest
That’s roughly $150/month more between those two points — before taxes, insurance, and HOA. Stretch that over a year and you’re talking real money. Stretch it over a 30-year loan and the difference compounds.
What that means in practice on Long Island:
Get re-approved for today’s rates. An approval from early summer may not match September’s payment reality.
Know your ceiling before you fall in love with a house. Rising rates shrink purchasing power. Decide your max monthly first — then work backward to price.
Don’t wait for perfect. Inventory is still thin. Sitting out hoping rates drop while the right house comes and goes is its own risk.
Look past “turnkey” when the bones are right. A house that needs work can still be the better buy if layout, location, and upside line up — especially when every dollar of purchase price is financed at a higher rate. That’s where a construction-informed eye helps.
What higher rates mean for sellers
Higher rates dont automatically crash a seller’s market — especially when supply is low. They do change buyer behavior.
Buyers get more selective. They run the numbers harder. They walk away from homes that feel overpriced or under-presented. The listings that still win are the ones that look like value at today’s payment.
If you’re thinking about selling:
Price for the buyer who has to qualify at 6.7%+, not 2021. Wishful pricing sits. Accurate pricing creates competition.
Presentation matters more, not less. When monthly payments feel heavier, buyers need to see why your home is worth it — condition, updates, marketing, and how the property shows online and in person.
Condition and renovation strategy matter. Cosmetic issues that buyers once ignored can become deal-breakers when they’re stretching on rate. Fix what changes value. Don’t overbuild what doesn’t.
I’m a Licensed Real Estate Salesperson with Long Island Home Properties — and my background also spans marketing and construction/renovation through Paramount Hamptons. When I look at a listing strategy, I’m asking the same questions a rate-sensitive buyer will ask: what needs work, what’s cosmetic, and what actually supports the ask.
The bottom line
Rates have moved higher from the summer lows. Long Island still has limited inventory and elevated prices. That combination favors prepared buyers and well-positioned sellers — not wishful ones.
If you want a clear read on what today’s rates mean for your purchase budget or your listing strategy, I’m happy to walk through it.
No pressure. No obligation.
Thomas J. Morganelli
Licensed Real Estate Salesperson with Long Island Home Properties
Partner, Paramount Hamptons
212-470-8247
TomMorganelli.com
Thomas J. Morganelli is a Licensed Real Estate Salesperson with Long Island Home Properties. Real estate brokerage services are offered through Long Island Home Properties. Paramount Hamptons is a separate design-build firm. Market statistics cited above are from third-party sources (Freddie Mac / FRED; OneKey MLS via Long Island Business News) and are for general information only — they are not a guarantee of rates, payments, or value for any specific property. Illustrative payment examples assume principal and interest only on a fixed loan amount and do not include taxes, insurance, HOA, or points.