Should you offer a rate buydown to sell your San Diego home?

Quick answer: Should I offer a mortgage rate buydown to sell my San Diego home?

Often, yes. With the 30-year rate at 7.40% (Freddie Mac, October 8, 2026), a 2-1 buydown on a median-priced San Diego County detached home costs a seller about $20,481 and lowers the buyer's first-year payment by about $1,129 a month. The same money as a price cut saves about $113 a month.

Key takeaways

• 57.1% of San Diego sales included a seller concession in the three months ending August 2026.
• A 2-1 buydown usually moves a buyer's monthly payment more than an equal price cut.
• Loan rules cap what you can contribute, so plan the number with the buyer's lender.

Rates climbed again, and you're wondering whether your price or the buyer's payment is the problem. For many San Diego buyers right now, it's the payment.

Why are San Diego buyers asking for rate buydowns?

The average 30-year fixed rate hit 7.40% for the week of October 8, 2026, up from 7.28% the week before, according to Freddie Mac's weekly survey. I covered what that jump means for the whole county in this week's mortgage rate update.

Buyers are still out there, but they're asking sellers for help. Redfin reports that 57.1% of San Diego home sales included a seller concession in the three months ending August 31, 2026 (published September 18, 2026). That's down from 62.4% a year earlier but above the 44.7% national share.

Concessions usually take the form of money toward repairs, closing costs, or a rate buydown. If you want the basics of how buyers request them, start with what a seller concession is.

How much does a 2-1 buydown cost a San Diego seller?

A 2-1 buydown pays down the buyer's rate by 2 points in year one and 1 point in year two. Then the loan returns to its full rate. Here's a full walkthrough of how the 2-1 buydown works.

To put real numbers on it, I used the September 2026 median detached price of $1,079,000 for San Diego County from the Greater San Diego Association of Realtors' monthly report (San Diego MLS data, current as of October 5, 2026).

My calculation, assuming 20% down, an $863,200 loan, a 30-year fixed rate of 7.40%, and principal and interest only (no taxes, insurance, or HOA dues):

• Full-rate payment at 7.40%: about $5,977 a month
• Year one at 5.40%: about $4,847 a month, a savings of about $1,129
• Year two at 6.40%: about $5,399 a month, a savings of about $577
• Approximate cost to the seller: about $20,481, or roughly 1.9% of the price

Your buyer's lender sets the exact subsidy amount, so treat this as a ballpark.

Is a buydown better than a price cut?

If the buyer can afford the home but the monthly payment worries them, a buydown usually does more.

Using the same assumptions, a $20,481 price cut lowers the buyer's loan by about $16,385 and their payment by about $113 a month (my calculation). The buydown saves about 10 times that in year one.

A price cut still matters when your home is priced above what recent sales support. If you've had showings but no offers, read what September's price cut numbers say before you decide. A buydown won't fix a home that appraises low.

San Diego County detached homes took a median of 37 days to sell in September 2026, down 9.8% from a year earlier, and sold for 97.7% of the original list price, per the same GSDAR report. Condos and townhomes took 44 days, with 4.0 months of supply, so attached sellers may need a concession sooner.

What are the limits on seller concessions?

Loan programs cap how much you can contribute. For a primary residence on a conventional loan sold to Fannie Mae, the limits are 3% of the price when the buyer puts down less than 10%, 6% with 10% to 25% down, and 9% with more than 25% down. A seller-paid buydown counts toward that cap.

FHA, VA, and jumbo loans have their own rules. That's why a simple approach is to offer a dollar amount "toward the buyer's closing costs or rate buydown," then let the buyer's lender fit it to the loan.

Two ways to use it:

1. Advertise it. Put the buydown in the listing remarks with a sample payment, so buyers see the lower number before they tour.
2. Hold it for negotiation. Keep your price firm and offer the credit when an offer comes in.

Bottom line

At 7.40% rates, the monthly payment is the hurdle for many San Diego buyers, and a seller-paid buydown can clear it for less than a matching price cut. Price your home right first, then use a credit to make the payment work.

Want to know what this means for your home? Call or text me at (858) 295-0556, or book a quick call at https://calendly.com/mance-riederhomes/strategycall. You can also get a home value estimate for your San Diego home.

Keep reading

• Should you sell your San Diego home this fall or wait until spring?
• How to tell if a San Diego home is overpriced
• Why days on market matter in San Diego

Mance Rieder | Broker Associate, DRE #02050930 | Rieder Homes Group | REAL Broker, LLC